Antireflection film, display device and light-transmitting element

FIELD: physics.

SUBSTANCE: antireflection film has on its surface a moth eye structure which includes a plurality of convex portions, wherein the width between the peaks of adjacent convex portions does not exceed the wavelength of visible light. The moth eye structure includes a sticky structure formed by connecting top ends of the convex portions to each other and the diameter of the sticky structure is smaller than 0.3 mcm. The aspect ratio of each of the plurality of convex portions is less than 1.0, and the height of each of the plurality of convex portions is shorter than 200 nm.

EFFECT: reduced light scattering.

29 cl, 69 dwg

 

The technical field to which the invention relates.

The present invention relates to antireflective film, display device and svetopropusknaya element. More specifically, the present invention relates to antireflective film designed for application on the substrate surface, display device, comprising the antireflective film, and svetopropusknaya element, comprising the antireflective film.

The level of technology

Various functions such as a function of the resistance to scratching, a function of preventing surface reflection of light and the function of preventing pollution, required for the surface of the display, such as CRT (CRT, cathode ray tube) display, LCD (LCD, liquid crystal display), PP (PDP plasma panel) and ELECTROLUMINESCENCE (EL, El) display.

In the example method of providing the function of preventing surface reflection light exercise LR (low reflection) processing, receiving material having a different refractive index than the material from which is comprised the display, in the form of a film on the surface of the display, resulting reflection is reduced due to the effect of interference of light reflected by the display surface, and light reflected by the surface of the film.

However, covered by the s at the interface between air and the surface of the film and the reflection at the interface between the surface film and the surface of the display usually deviates from the ideal conditions in with regard to the relative amplitude of the indication and phase values. Therefore, the reflected light resulting from reflection, is not completely eliminated, resulting in a sufficient antireflective effect is not achieved. Thus, with only one LR processing, the peripheral light is reflected at a constant reflection coefficient, while the image from a light source such as fluorescent lamp, is reflected on the display, making the display very inconvenient for visual perception. To address this problem additionally carry AG (anti-glare) treatment to prevent surface reflection light based on the use of the scattering effect of light on the display surface is formed of a thin concave-convex texture, making the picture from a light source such as fluorescent lamp, diffuse scattered light.

In the example of a typical method of forming a fine concave-convex texture is formed, for example, a relief hologram or diffraction grating, such as applied to credit cards, ID cards, gift certificates, bills, and so on for security purposes (see patent documents 1 and 2, for example). In patent documents 1 and 2 opisyvaetsja (photopolymer) method, in which a transparent substrate such as polyester film, coated with a liquid composition based fotoallergiyami resin forming the layer of liquid fotoallergiyami resin, then the matrix having a fine concave-convex texture, pressed to the layer fotoallergiyami resin, and in this state, the layer fotoallergiyami resin utverjdayut the light emanating from the substrate, after which the matrix is removed, and the method of applying to the substrate the coating of the composition on the basis of fotoallergiyami resin, which is highly viscous or solid at room temperature, with formation of a layer of liquid fotoallergiyami resin, then the matrix is pressed against the layer fotoallergiyami resin layer fotoallergiyami the resin is separated, and then utverjdayut layer fotoallergiyami resin when irradiated with light.

In particular, in recent years microrelief patterns that mimic the eyes of a moth (moth-eye), which can be achieved high antireflective effect without the use of optical interference, was seen as a way to achieve low reflection surface of the display by using other methods than AG processing. In microrelief structure, simulating the eye of a moth, a more subtle concave-convex texture than used in AG processing, at intervals that do not exceed the wavelength of light (not more than nm, for example), is continuously on the surface of the object, which is antireflective treatment, while the refractive index at the interface between the external environment (air) and the surface of the film varies quasi-continuous. Thus, almost all the light is skipped regardless of the refractive index at the interface, and as a result, the reflection of light on the surface of the object can be essentially eliminated (see patent documents 3 and 4, for example).

Patent document 1: Published patent application Japan 2004-59820

Patent document 2: Published patent application Japan 2004-59822

Patent document 3: Published Japanese translation of PCT application 2001-517319

Patent document 4: Published Japanese translation of PCT application 2003-531962

According to various studies in the field of antireflective films (also referred to hereinafter as the film "eyes of a butterfly"), having microrelief structure of the eyes of the butterfly on its surface, the authors of the present invention have found that depending on the structural materials and the conditions of production of the film eye of a moth, light can be scattered by the structure of the eye of a moth, and as a result, when the film eye of the butterfly is attached to the surface of the display device, for example, the image displayed on display at trojstvo, it may seem blurred.

Description of the invention

The present invention was developed with consideration of the current circumstances described above, and its purpose is to provide an antireflective film which is reduced by the scattering of light.

According to various studies of the structure of the film eye of a moth, which causes scattering of light, the authors of the present invention focused on the upper end of each convex part of the film eye of the butterfly. The authors of the present invention have found that sticky structure that is formed when the upper ends of the convex parts stick to each other can be called as a structural feature of the film eye of a moth, which will probably be dispersed light. The authors of the present invention, therefore, found that the scattering of light caused by sticky structure.

In addition, the authors of the present invention found that the probability of formation of this type of adhesive patterns can be reduced by modifying the structural materials and the conditions of production of the film eye of the butterfly. The authors of the present invention, therefore, solves the problem, described above, with great success, having thus the present invention.

More specifically, the present invention is directed to the antireflective film (also referred to as the AK first antireflective film according to the present invention), comprising, on its surface, the structure of the eye of a moth, which includes many of these convex parts that the width between the tops of adjacent convex parts is not greater than the wavelength of visible light. In the specified antireflective film structure of the eye of the moth does not include sticky structure formed at the connection of the upper ends of the convex parts with each other.

Further, the present invention is directed to the antireflective film (also referred to herein as the second antireflective film according to the present invention)comprising, on its surface, the structure of the eye of a moth, which includes many of these convex parts that the width between the tops of adjacent convex parts is not greater than the wavelength of visible light. In the specified antireflective film structure of the eye of the butterfly includes sticky structure formed at the connection of the upper ends of the convex parts with each other, and the diameter of the adhesive structure is less than 0.3 μm.

In addition, the present invention is directed to the antireflective film (also referred to herein as the third antireflective film according to the present invention)comprising, on its surface, the structure of the eye of a moth, which includes many of these convex parts that the width between the tops of adjacent convex parts is not revised wavelength of visible light. In the specified antireflective film structure of the eye of the butterfly includes sticky structure formed at the connection of the upper ends of the convex parts with each other, the diameter of the adhesive structure is greater than or equal to 0.3 microns, the density of the number of sticky structures per unit area of the plane of the antireflective film below 2.1 units/mm2.

From the first to the third, the antireflective film of the present invention include, on their respective surfaces, the structure of the eye of a moth, which includes many convex parts, and the width (the interval or pitch) between adjacent vertices of the convex parts is not greater than the wavelength of visible light. In the present description, the phrase "not more than the wavelength of visible light" means not more than 380 nm, which corresponds to the lower limit of the wave normal range of visible light. The width is preferably not more than 300 nm, and more preferably not more than approximately half the wavelength of visible light, that is, 200 nm. When the width of the structures of the eye of the disc exceeds 400 nm, the shade may be formed blue component wavelength, however, when setting the width at or below 300 nm, this effect can be reduced sufficiently, and when setting the width at or below 200 nm, this effect can be practically eliminated

In the first antireflective film according to the present invention, the structure of the eyes of the moth does not include sticky structure formed at the connection of the upper ends of the convex parts with each other. In other words, the density by the number of sticky structures per unit area of the plane of the antireflective film in the first antireflective film according to the present invention can be specified as a component below 0 units/mm2. Sticky structure provides easier scattering of light incident on the antireflective film, when the antireflective film is deposited on a display device, for example, on the display with higher probability will appear blurred.

In the present description, the adhesive structure is a beam of convex parts formed in this bending of the upper ends of the convex parts that they are connected to each other. More specifically, the adhesive composition may be a solid element comprising a convex part of a whole, not only their upper ends, when each other are connected only to the upper ends formed hollow element. In relation to the number of convex parts that compose a sticky structure, there are no specific restrictions. At the top view on the surface of the antireflective film, the adhesive structure is RA may have a circular shape, elliptic shape, a polygon shape, star shape, flower shape, an amorphous shape, and so forth. When the convex parts have a regular structure, sticky structure may have a star shape, a gourd shape, flower shape or an amorphous shape.

In the second antireflective film according to the present invention, the structure of the eyes of the moth includes sticky structure, formed at the connection of the upper ends of the convex parts with each other, and the diameter of the adhesive is less than 0.3 μm, and preferably less than 0.2 μm. When the diameter of each adhesive patterns is less than 0.3 μm and preferably less than 0.2 μm, the light incident on the antireflective film, doesn't scatter. Thus, while limiting the diameter of the adhesive patterns within these limits, the display blurring is likely to appear, for example, when the antireflective film is deposited on the display device. The reason for this is that in the structure of the convex part having a smaller size than the specified size (step) is substantially less than the wavelength of visible light, and therefore the eyes of the moth provides sufficient antireflective effect, and the effects of dispersion is reduced sufficiently. It should be noted that the diameter of the adhesive structure according to the present description denotes the width of the most the long part of the adhesive patterns, when looking at the surface of the antireflective film on top.

In the third antireflective film according to the present invention, the structure of the eyes of the moth includes sticky structure formed at the connection of the upper ends of the convex parts with each other, the diameter of the adhesive structure is greater than or equal to 0.3 microns, and the density by the number of sticky structures per unit area of the plane of the antireflective film below 2.1 units/mm2. In that case, if the ratio of the area occupied by adhesive structures to a given surface area is low, the characteristic of light scattering can be made practically negligible, even when the diameter of the adhesive structure is greater than or equal to 0.3 microns. Thus, while limiting the area occupied sticky structures on a given surface area on the display with a low probability appears blurred, for example, when the antireflective film is deposited on the display device.

Configuration from the first to the third antireflective film of the present invention are not specifically limited by other components, provided that it essentially includes such components.

Preferred embodiments of the first through the third antireflective film of the present invention are described in more detail below

Aspect ratio of each of a large number of convex portions is preferably less than 1.0. In addition, the height of each of the multiple convex portions is preferably less than 200 nm. In the present description aspect ratio is the ratio of the height of each convex portion to the base length. In other words, a value obtained by dividing the height by the length of the base (height/length) corresponds to the aspect ratio. Limiting the aspect ratio or the height of each convex part to the specified limits, bending the upper ends of the convex parts will be less likely, and therefore the formation of adhesive structures can be avoided. It should be noted that in this case, the term "convex part" is used to denote the convex parts, components not sticky structure.

Aspect ratio of each of a large number of convex portions is preferably greater than or equal to 0.8. In addition, the height of each of the multiple convex portions is preferably greater than or equal to 160 nm. When the aspect ratio or the height of each convex portion is too small, can be reflected light in the long wavelength range of the spectrum (from yellow to red). Therefore, when adjusting aspect ratios of each convex part within the specified limits, can be obtained homogeneous display showing the minor is entrusted shade, for example, when applying the antireflective film on the display device.

The local maximum value on the curve representing the characteristic of the temperature dependence of tg δ of the material forming the antireflective film is preferably not greater than 0.4, and more preferably not more than 0.3. Further, the aspect ratio of each of a large number of convex parts at the moment, preferably not less than 0.7 and not more than 1.1, and is particularly effective when it is not less than 0.9 and not more than 1.1. In addition, the height of each of the multiple convex parts at the moment, preferably not less than 140 nm and not more than 220 nm, and is particularly effective when it is not less than 180 nm and not more than 220 nm. When restricting the local maximum values of tg δ of the material forming the antireflective film, within these limits the change in the shape of convex parts, most likely, will not happen. Thus, the bending of the upper ends of the convex parts will occur with less probability, and therefore it is possible to avoid the formation of adhesive structures. According to this structure, the change in the shape of the convex parts can be prevented, even when the aspect ratio of each convex portion is greater than or equal to 0.9, in which the upper end of the convex portion is easily bent. In addition, changing the shape of the convex parts can be prevented is, even if the height of each convex portion is greater than or equal to 180 nm.

The width of the local maximum value of the curve representing the characteristic of the temperature dependence of tg δ of the material forming the antireflective film is preferably not less than 52°C, and more preferably not less than 92°C. Further, the aspect ratio of each of a large number of convex parts at the moment, preferably not less than 0.7 and not more than 1.1, and is particularly effective when it is not less than 0.9 and not more than 1.1. In addition, the height of each of the multiple convex parts at the moment, preferably not less than 140 nm and not more than 220 nm, and is particularly effective when it is not less than 180 nm and not more than 220 nm. While maintaining the half-width of the local maximum values of tg δ of the material forming the antireflective film, within the specified range, change the shape of the convex parts, most likely, will not happen. Thus, the bending of the upper ends of the convex parts will occur with less probability, and therefore it is possible to avoid the formation of adhesive structures. According to this structure, the change in the shape of the convex parts can be prevented, even if the aspect ratio of each convex portion is greater than or equal to 0.9, in which the upper end of the convex portion is easily bent. In addition, changing the shape of the convex parts may be pre is turned, even if the height of each convex portion is greater than or equal to 180 nm.

The differential of the curve representing the characteristic of the temperature dependence of the dynamic modulus of elasticity of the material forming the antireflective film is preferably not less of-1.0×10-8and more preferably not less -0,8×10-8within a range going from the initial point of change to endpoint changes. In addition, the differential characteristics of the temperature dependence of the dynamic modulus of elasticity of the material forming the antireflective film is preferably not greater than 1.0×10-8and more preferably not more than 0.8×10-8within a range going from the initial point of change to endpoint changes. Moreover, the aspect ratio of each of a large number of convex parts at the moment, preferably not less than 0.7 and not more than 1.1, and is particularly effective when it is not less than 0.9 and not more than 1.1. In addition, the height of each of the multiple convex parts at the moment, preferably not less than 140 nm and not more than 220 nm, and is particularly effective when it is not less than 180 nm and not more than 220 nm. When establishing differential within the range going from the start point to the end point of the change of dynamic modulus of elasticity, which affects the dynamic viscoelasticity of the material forming the antireflective film, near zero, or in other words, with decreasing slope of the curve of dynamic modulus of elasticity based on the characteristics of the temperature dependence of the change in the shape of convex parts, most likely, will not happen. Thus, the bending of the upper ends of the convex parts becomes less likely, and therefore it is possible to avoid the formation of adhesive structures. According to this structure, the change in the shape of the convex parts can be prevented, even if the aspect ratio of each convex portion is greater than or equal to 0.9, in which the upper end of the convex portion is easily bent. In addition, changing the shape of the convex parts can be prevented, even if the height of each convex portion is greater than or equal to 180 nm.

The film of the resin used as the antireflective film typically has a dynamic viscoelasticity. Dynamic viscoelasticity of the resin is temperature-dependent, and therefore, the values of characteristics such as dynamic modulus of elasticity (accumulation) (E') and loss modulus (E"), vary with temperature. The tg value of δ, which is calculated from the ratio of loss modulus (E")/dynamic elastic modulus (E'), is used as a parameter reflecting the characteristics of the resin.

The specified properties of the resin can be determined, for example, by measuring the dynamic visco is progoti. When measuring the dynamic viscoelasticity, the data indicating the temperature change of dynamic modulus of elasticity (E'), loss modulus (E") and tan δ can be obtained for each frequency measurement. In addition, when measuring the dynamic viscoelasticity can be set more accurately the occurrence of vitrification depending on the molecular structure and temperature at which there is a transition (glass transition temperature). In the case of conventional resins decrease in E' and the peaks of the E" and tan δ are observed on both sides of the glass transition temperature (TC).

However, it should be noted that the process of vitrification in the resin (polymer) is a relaxation phenomenon, which depends on the time factor, and therefore, the change indicating the transition, shows temperature shift according to the measurement frequency, and the transition region is shifted to higher temperatures with increasing frequency.

Therefore, in the present description, the dynamic modulus of elasticity of savings (E') and dynamic loss modulus (E") are values obtained by measurement of the temperature dependence (temperature variance) using the method corresponding to JIS K-7244 under the following conditions: dynamic amplitude and speed of the sample (pilot frequency) - 1 Hz; stretch mode; the distance between the clamps - 5 is m; the amplitude of the deformation - 10 μm; the initial value of the amplitude of the force of 100 mn and a rate of temperature rise to 2°C/min

The glass transition temperature (TC) of the material forming the antireflective film is preferably lower than or equal to 200°C., and more preferably less than or equal to 100°C. Further, the glass transition temperature (TC) of the material forming the antireflective film, preferably higher than or equal to 0°C. In the present description, the glass transition temperature (TC) is the temperature at which tg δ reaches a local maximum, the measured temperature dependence (temperature variance) using the method corresponding to JIS K-7244, under the following conditions: dynamic amplitude and speed of the sample (pilot frequency) - 1 Hz; stretch mode; the distance between the clamps is 5 mm and the rate of temperature rise to 2°C/min

The antireflective film according to the present invention can be formed using the method with pinning the matrix having a multitude of concave portions, the width between the tops of adjacent concave parts not exceeding the wavelength of visible light, to the surface of the resin film serving as the antireflective film, curing the resin film using light or heat and the subsequent removal of the matrix. However, if used the SJ resin, having a glass transition temperature (TC) above 200°C, the hardness of the resin increases. Therefore, when forming the structures of the eye of a moth, composed of convex parts having a high aspect ratio (in particular, of 2.0 or higher), the matrix is difficult to remove, and the resulting cured film of the resin or matrix can break down (clogged). In addition, if resin is used, the value of TC which exceeds 100°C, the resin film can shrink during curing. In particular, when the resin film formed on a substrate film made of PET (polyethylene terephthalate), TAC (triacetylcellulose), COP (cycloolefin polymer) or the like, the substrate film may curl, and the interface between the resin film and the substrate film may be deformed, resulting in reduction of adhesion and increases the chance of damage to the substrate film. In addition, if resin is used, TC exceeding 100°C, the resin film tends to increase fragility, which leads to an increase of the probability of occurrence in a film of the resin cracks.

Dynamic modulus of elasticity (E') is preferably not less than 0.1 GPA at 25°C. While maintaining the dynamic modulus of elasticity of the material forming the antireflective film, within a specified range, stability form the antireflective film with those is the giving of time and the impact resistance can be improved in an environment of practical application of the antireflective film.

From the first to the third antireflective film of the present invention, in the case of their use in a display device, in particular, provide a display on which the blur is caused by the reflection, is not perceived by the viewer. In other words, the present invention is also aimed at showing the device, including any of the first-third antireflective film according to the present invention. It should be noted that display device according to the present invention may be a liquid crystal display device, an organic electroluminescent display device, an inorganic electroluminescent display device, plasma display device, display device, cathode ray tube, and so on. The antireflective film according to the present invention can also preferably be used in svetopropusknaya element (optical element), which is used by the user for viewing the target object through the element. Therefore, when the antireflective film is attached on a transparent object, such as a lens, window glass, screen display, the aquarium or on the panel to protect the front surface of the display device, for example, the effect of weak reflections or the other words, the effect of high light transmission, without the appearance of blurriness, and as a result can be made of transparent display element of high contrast. In other words, the present invention is also directed to a translucent element, which includes any of the first-third antireflective film according to the present invention.

The technical result of the invention

Using the antireflective film according to the present invention, the scattering of light incident on the antireflective film can be reduced so that the display is less likely to appear blurred when the antireflective film is on the surface of the display device or the optical element.

Brief description of drawings

Figure 1 is a schematic view in section, showing the General appearance of the film eye of the moth (antireflective film) according to the first variant of implementation;

Figure 2 is a schematic view in section, showing an enlarged image of the convex parts of the film eye of the moth (antireflective film) according to the first variant of implementation;

Figure 3 is a view in perspective showing the film eye of the disc according to the first variant of implementation in the case when a single structure in palloy part has a conical shape;

Figure 4 is a view in perspective showing the film eye of the disc according to the first variant of implementation in the case where the unit structure of the convex part has a shape of a quadrangular pyramid;

Figure 5 is a view in perspective showing the film eye of the disc according to the first variant of implementation in the case where the unit structure of the convex part is formed so that its inclined surface becomes constantly more gently sloping from a point of the base to the apex, while its upper end is sharp;

6 is a view in perspective showing the film eye of the disc according to the first variant of implementation in the case where the unit structure of the convex part is formed so that its inclined surface becomes constantly more gently sloping from a point of the base to the apex, with its upper end rounded;

Fig.7 is a view in perspective showing the film eye of the disc according to the first variant of implementation in the case where the unit structure of the convex part is formed so that its inclined surface becomes constantly more steep point of the base to the apex, with its upper end rounded;

Fig is a view in perspective showing the film eye of the moth in accordance with item is pout variant implementation, when the unit structure of the convex part is formed so that its inclined surface becomes constantly more steep point of the base to the apex, while its upper end is sharp;

Fig.9 is a view in perspective showing the film eye of the disc according to the first variant of implementation when the peripheral height of the convex parts unequal;

Figure 10 is a view in perspective showing the film eye of the disc according to the first variant of implementation when the peripheral height of the convex parts unequal;

11 is a view in perspective showing the film eye of the disc according to the first variant of implementation when the peripheral height of the convex parts unequal;

Fig is a schematic view in perspective which illustrates in greater detail the convex part of the film eye of the moth, as well as an enlarged image of a case in which the convex part is constantly flatter from the bottom to the top and includes part of the saddle and the saddle point;

Fig is a schematic view in perspective which illustrates in greater detail the convex part of the film eye of the moth, as well as an enlarged image of a case in which the convex part is constantly steeper from the bottom to the top and which engages a portion of the saddle and the saddle point;

Fig is a schematic top view showing a convex portion of the film eye of the disc according to the first variant of implementation;

Fig is a schematic depiction showing a cross section taken along the line A-A' Fig, and the cross-section taken along the line B-B', Fig;

Fig is a schematic depiction showing the principle of weak reflections through the film eye of the disc according to the first variant implementation and structure in the cross section of the film eye of the moth;

Fig is a schematic depiction showing the principle of weak reflections through the film eye of the disc according to the first variant of implementation and the refractive index (effective refractive index) in the fall of light on the film eye of the moth;

Fig is a schematic view in section, showing sticky structure, formed at the connection of the convex parts of the film eye of the butterfly together;

Fig is a photograph of the cross section of the film eye of the moth produced in example 1;

Fig is a schematic view in section of the film eye of the moth produced in example 1;

Fig is a photograph from above the film eye of the moth produced in example 1;

Fig is a schematic view of the m on top of the film eye of a moth, manufactured in example 1;

Fig is a photograph of the cross section of the film eye of the moth produced in example 2;

Fig is a schematic view in section of the film eye of the moth produced in example 2;

Fig is a photograph from above the film eye of the moth produced in example 2;

Fig is a schematic top view of the film eye of the moth produced in example 2;

Fig is a photograph of the cross section of the film eye of the moth produced in reference example 1;

Fig is a schematic view in section of the film eye of the moth produced in reference example 1;

Fig is a photograph from above the film eye of the moth produced in reference example 1;

Fig is a schematic top view of the film eye of the moth produced in reference example 1;

Fig is a photograph of the cross section of the film eye of the moth produced in reference example 2;

Fig is a schematic view in section of the film eye of the moth produced in reference example 2;

Fig is a photograph from above the film eye of the moth produced in reference example 2;

Fig is a schematic top view of the film eye of the moth produced in reference example 2;

Fig is a photograph of a cross section showing an enlarged image of plank the eyes of the butterfly reference example 2;

Fig is a schematic view in section, showing an enlarged image of the film eye of the butterfly reference example 2;

Fig is the photo above, which shows an enlarged image of the film eye of the butterfly reference example 2;

Fig is a schematic top view showing an enlarged image of the film eye of the butterfly reference example 2;

Fig is a graph showing the reflectance spectra of light reflected by the surfaces of the films eye of a moth, manufactured in examples 1-3 and reference examples 1 and 2;

Fig is a graph showing transmission spectra of light passing through the surface of the films eye of a moth, manufactured in examples 1-3 and reference examples 1 and 2;

Fig is a graph showing spectra of scattering light scattered on the surfaces of the films eye of a moth, manufactured in examples 1-3 and reference examples 1 and 2;

Fig is a conceptual image showing the evaluation system for evaluating the scattering characteristics of light reflected on the surface of the film eye of the moth;

Fig is a graph showing temperature dependence of tg δ in resins A-D;

Fig is a graph showing the temperature dependence of the dynamic m is the module of elasticity of savings (E') of the resins A-D;

Fig is a graph showing the temperature dependence of the dynamic loss modulus (E") of the resins A-D;

Fig is a graph showing spectra of scattering light scattered on the surfaces of the films eye of the disc according to examples 4-7, and which illustrates the spectra of scattering based on an absolute value (W/St/m2) diffuse brightness (energy intensity);

Fig is a graph showing spectra of scattering light scattered on the surfaces of the films eye of the disc according to examples 4-7, and which illustrates the spectra of scattering based on the degree of increase in diffuse brightness (energy intensity);

Fig is a graph showing spectra of scattering light scattered on the surfaces of the films eye of the disc according to examples 8 to 11, and which illustrates the spectra of scattering based on the absolute value of the scattered brightness (energy intensity);

Fig is a graph showing spectra of scattering light scattered on the surfaces of the films eye of the disc according to examples 8 to 11, and which illustrates the spectra of scattering based on the degree of increase in diffuse brightness (energy intensity);

Fig is a photograph from above the film eye of the moth produced in example 9;

Fig the C is a schematic top view of the film eye of a moth, manufactured in example 9;

Fig is a photograph from above the film eye of the moth produced in example 10;

Fig is a schematic top view of the film eye of the moth produced in example 10;

Fig is a photograph from above the film eye of the moth produced in example 11;

Fig is a schematic top view of the film eye of the moth produced in example 11;

Fig is a graph showing spectra of scattering light scattered on the surfaces of the films eye of the disc according to examples 12 to 14 and reference example 3, which illustrates scattering spectra based on the absolute value of the scattered brightness (energy intensity);

Fig is a graph showing spectra of scattering light scattered on the surfaces of the films eye of the disc according to examples 12 to 14 and reference example 3, which illustrates scattering spectra based on the degree of increase in diffuse brightness (energy intensity);

Fig is a photograph from above the film eye of the moth produced in example 14;

Fig is a schematic top view of the film eye of the moth produced in example 14;

Fig is a photograph from above the film eye of the moth produced in reference example 3;

Fig is a schematic top view captured the eyes of a moth, produced in reference example 3;

Fig is a graph showing spectra of scattering light scattered on the surfaces of the films eye of the disc according to the reference examples 4-7, and which illustrates the spectra of scattering based on the absolute value of the scattered brightness (energy intensity);

Fig is a graph showing spectra of scattering light scattered on the surfaces of the films eye of the disc according to the reference examples 4-7, and which illustrates the spectra of scattering based on the degree of increase in diffuse brightness (energy intensity);

Fig is a photograph from above the film eye of the moth produced in reference example 4;

Fig is a schematic top view of the film eye of the moth produced in reference example 4;

Fig is a photograph from above the film eye of the moth produced in reference example 5;

Fig is a schematic top view of the film eye of the moth produced in reference example 5;

Fig is a histogram summarizing increase the brightness (Y value)arising from the scattering of light on the surfaces of the films eye of a moth, formed from combinations of matrices 1-4 and resins A-D; and

Fig is a graph showing a correlation between the density of coalescent units(units/(μm 2and increase the brightness (Y value).

Embodiments of the inventions

Further, the present invention is described in more detail with reference to the drawings, in the following embodiments, but is not limited to these options for implementation.

The first option exercise

1 and 2 are schematic depictions in section, showing the film eye of the moth (antireflective film) according to the first variant implementation. Figure 1 shows a General view of the film eye of the moth, and figure 2 shows an enlarged image of the convex parts. As shown in figures 1 and 2, the film 11 eyes of the disc according to the first variant of implementation represented in base 16, which is the goal of antireflective treatment. Specific limitations of the core material 16 is no, provided that it can be applied corresponding to the antireflective film. The base 16 may be transparent or opaque. If the Foundation is a non-transparent basis, can be achieved the effect of preventing the reflection on the surface of an opaque base. For example, in the case of the black bases are based entirely black, and in the case of color bases are base and high color saturation. Thus, a product with excellent is by design. Specific restrictions regarding the form of the base 16 are missing, and, for example, can be used in film, sheet, product manufactured by injection molding product molded from the melt, such as a product molded by pressing, or the like. Materials that can be used when the base 16 is transparent, include glass, plastic, for example, TAC (triacetylcellulose), polyethylene, copolymer of ethylene/propylene, PET (polyethylene terephthalate), acrylic resin or methacrylic resin, metal and so on.

Display device and a translucent element can be used as the target antireflective treatment, while the element, which can be antireflective treatment, may be a front surface, a polarizer, a phase plate, a reflective sheet, a prism sheet, a reflective polarizing sheet, a protective plate made of acrylic resin or the like, or a layer of solid coating located on the surface of the polarizer, which form the outer surface of the display device, particularly a liquid crystal display device. Displays the device can be samopoczucia display element or resumptively display element. In addition to the, the purpose of antireflective treatment can be an optical element such as a lens, window glass, printed objects, photography, colored object, the lighting device housing, and so forth.

As shown in figure 1, the surface of the film 11 eyes of the moth has a structure that mimics the eyes of the moth, whose ranks there are many small convex parts. Each convex portion tapers towards the upper end. The surface of the base 16 has a concave-convex structure, which has a more gradual slope than the small convex portion, the surface of the film 11 eyes of the butterfly also has a smooth concave-convex structure corresponding to the structure of the substrate 16. Smooth concave-convex structure formed when AG processing. The distance between the peaks of the convex parts forming the concave-convex structure is set so that it is much greater than the wavelength of visible light, for example, 5-100 μm. When such a double structure can be obtained antireflective effect and anti-glare effect. Concave-convex AG-processed structure also may be on part of the flat surface. It should be noted that in the first embodiment, AG processing can not be applied.

As shown in figure 2, the structure of the eye of a moth, in which the width between peaks sm is the author of the convex portions 12 is not greater than the wavelength of visible light, formed on the surface of the film 11 eyes of a moth. In other words, many convex parts 12 are located on the surface of the film 11 eyes of a moth with intervals or increments that do not exceed the wavelength of visible light. The above width refers to the interval between adjacent convex portions in the case where the convex part 12 have a non-periodic structure, and specifies the spacing of adjacent convex parts in the case when the convex part 12 have a periodic structure. It should be noted that when the convex parts are irregular (non-periodic), unwanted dragirovaniya light is not generated, and therefore aperiodic order preferred. The film 11 eyes borer consists of convex parts 12 and the supporting part 13 located below the convex parts 12 (under their bottom side).

Resin, which cures under certain conditions and can be subjected to optical nanopaste or heat nanopaste, for example, can be used as a material for forming the convex parts 12 from the film eye of the butterfly. Fototerapia resin such as acrylic resin or methacrylate resin, which can be subjected to optical nanopaste for the formation of a fine texture, is the most preferred.

The supporting part 13 is composed of many layers, on the expectation of the residual layer of the resin film, formed when forming the convex parts 12, the base film on which is formed and supported by the structure of the eye of a moth, and an adhesive used for fixing film 11 eyes of a moth on the base 16. The residual layer of the film resin is a partial residual film, not turned into a convex part in the process of forming the convex parts 12 and consists of a material identical to a material of the convex parts 12.

Material-based resin or the like, for example, triacetylcellulose, polyethylene terephthalate, polyolefin resin, formed of a cyclic olefin polymer (represented resins based on norbornene, such as resin under the trade name "Zeonor" (manufactured by Zeon Corporation) and under the trade name "Arton" (manufactured by JSR Corporation)), polypropylene, polymethylpentene, polycarbonate resin, polyethylenterephthalat, polyurethane, polyetherketone, polysulfone, polyethersulfone, complex, polyester, polystyrene resin or acrylic resin, for example, can be used as a film base. The adhesive layer processing to increase the adhesion of the hard coating layer and so forth may be formed on the surface of the film base.

Specific restrictions in relation to the material of the adhesive layer is absent. Release film (e.g., PET) can be the ü glued to the surface of the substrate 16 from the adhesive layer to protect the adhesive layer.

Figure 3-8 represent the image in perspective, showing the increase of the surface of the film eye of the disc according to the first variant implementation. Figure 3 shows the case where the unit structure of the convex part has a conical shape. Figure 4 shows a case where the unit structure of the convex part has a shape of a quadrangular pyramid. Figure 5 shows the case where the unit structure of the convex part is formed so that its inclined surface becomes constantly more gentle to the base point of the mountain, and its upper end is pointed. Figure 6 shows the case where the unit structure of the convex part is formed so that its inclined surface becomes constantly more gentle to the base point of the mountain, and its upper end is rounded. 7 shows the case when a single structure of the convex part is formed so that its inclined surface becomes constantly more steep to the base point of the mountain, and its upper end is rounded. On Fig shows the case where the unit structure of the convex part is formed so that its inclined surface becomes constantly more steep to the base point of the mountain, and its upper end is pointed.

As shown in Fig.3-8, in the structure of the eyes of the moth the upper part of the convex part 12 is a top t, and the point, to the second convex part 12 are in contact with each other are the base b. As shown in Fig.3-8, width w between adjacent vertices of the convex parts 12 structures of the eye of the moth is expressed by the distance between two points, we get, if you omit the perpendiculars from the respective vertices of t of the convex parts 12 on the same plane. In addition, the height h from the vertex to the base point of the eye structure of the disc is expressed by a distance obtained by lowering the perpendicular from vertex t of the convex part 12 on the plane, which is the point of the base b.

In the film eye of the disc according to the first variant implementation of the width w between adjacent vertices of the convex parts 12 structures of the eye of the moth does not exceed 380 nm, preferably not greater than 300 nm, and more preferably less than 200 nm. It should be noted that figure 3-8 taper, a quadrangular pyramid, the shape of diving bells, the dome shape, the form of Church bells and the form of needle shown as examples of unit patterns of the convex part 12, but if the structure of the eyes of the disc according to the first variant implementation is concave-convex structure formed with peaks and points of the base and step not exceeding the wavelength of visible light, in respect of a single structure, there are no specific limitations, and instead listed can use the form with stepped ledges cut in h is stronger surface of the cone, or similar.

Convex part of the film eye of the disc according to the first variant implementation can have multiple ordered or disordered structures. In other words, a convex part having a connecting point of the base, when the convex part is in contact with each other, need not necessarily be formed with the same height, and as shown in figures 9-11, for example, the peripheral height of the convex parts may be different, at this point (point of contact) on the surface, in which the respective convex parts in contact with each other, are located at different heights. In this case, we can say that there are parts of the saddles. Part of the saddle is such a place that goes down the line of the ridge. Thus, when using a convex part having one vertex t as standard, many points of contact exist in lower positions than the top of the t, forming, thus, part of the saddle. In the present description, the point of contact in the lowest position on the periphery of an arbitrary convex part referred to as the point of the base b, and the point, which is located below the top of the t, but above the base point of b, and is the equilibrium point of the part of the saddle is called the saddle point s. In this case, the distance w between the peaks of the convex parts corresponds to the width between the panorama peaks, while the distance h in the perpendicular direction from the top to the point at the base corresponds to the height of the convex part.

Hereinafter described in greater detail. When using a convex part having one vertex, which serves as a standard, hereinafter referred to as example describes the case in which the convex part has many points of contact with the adjacent convex parts, resulting in part of the saddle (the saddle point) are formed at lower positions than the vertex t. Fig and 13 are schematic images in perspective, which illustrates in greater detail the convex part of the film eye of the butterfly. Fig is a magnified image of a case in which the convex part has a more gentle angle from the bottom to the top and includes part of the saddle and the saddle point, and Fig is a magnified image of a case in which the convex part has an ever steeper angle from the point at the base to the top and includes part of the saddle and the saddle point. As shown in Fig and 13, there are many points of contact with the adjacent convex parts relative to one vertex t of the convex part, with these points of contact are located at lower positions than the vertex t. As you can see when comparing Fig and 13, the saddle point s, likely the e only, will be formed at a low altitude, when the inclined surface becomes constantly more steep angle from the bottom to the top, than when the inclined surface becomes constantly more gentle angle from the bottom to the top.

Fig is a schematic top view showing a convex portion of the film eye of the disc according to the first variant implementation. On pig point, indicated by white circles represent vertices, points indicated by black circles represent the point at the base, and white squares represent the point of saddle parts of the saddle. As shown in Fig, the point at the base and the saddle point is formed on concentric circles centered at a vertex. On Fig illustrates a configuration in which the six points of the base and are six points of the saddle formed on the same circle, but the present invention is not limited to this, and in fact includes more irregular configuration. White circles denote vertices, white squares indicate the points of saddle and black circles denote the point at the base.

Fig is a schematic depiction showing a cross section taken along the line A-A' Fig, and the cross-section taken along the line B-B', Fig. In this case, the top of the seat is s as a2, b3, a6, b5, side saddle marked as b1, b2, a4, b4, b6, and point base designated as a1, a3, a5, a7. At the moment, the relationship between a2 and b3 and the relationship between b3 and b5 correspond to the relations between adjacent vertices, while the distance between a2 and b3 and the distance between b3 and b5 corresponds to the width w between adjacent vertices. Further, the distance between a2 and a1 or a3, and the distance between a6 and a5 or a7 corresponds to the height h of the convex part.

Figure 3-13 General configuration of multiple convex parts are mounted so that the repeat units are arranged with an interval not exceeding the wavelength of visible light. However, the configuration may be partially non-periodic or completely non-periodic. In addition, the distance between one arbitrary convex part of many convex parts and many adjacent convex parts may differ from each other. Non-periodic arrangement is advantageous in that the diffraction and scattering in reflection and transmission, due to the regular spacing occur with lower probability in the manufacture of similar texture simplified. In addition, as shown in Fig.9-15, the film eye of the moth can be formed with multiple contact points located at different heights on the periphery of one of the convex part, below its top. It should be noted that the surface of the plait is Ki eyes of the moth may also include irregularities of higher degree, than nano-order, for example, micro - or higher degree. In other words, the surface of the film eye of the moth may have a double concave-convex structure.

The following describes the principles according to which the film eye of the disc according to the first variant implementation provides a low reflection. Fig and 17 are diagrams showing the principles of achieving low reflectance from the film eye of the disc according to the first variant implementation. On Fig shows the structure of the cross section of the film eye of the moth, and Fig shows the refractive index (effective refractive index) of the light, which takes place in the film eye of the butterfly. As shown in Fig and 17, the film 11 eyes of the disc according to the first variant implementation of the formed convex portions 12 and the supporting part 13. When light passes from one medium to another medium, the light scatters, tolerated and is reflected at the interface between these two environments. The degree of diffraction and so on is determined by the refractive index of the medium, which passes light. For example, air has a refractive index of approximately 1.0, and the resin has a refractive index of approximately 1.5. In the first embodiment, the unit structure of the concave-convex patterns formed on the surface of the Lenka eyes of a moth, has the form of borax. In other words, a single structure is formed so that its width gradually decreases toward the upper end. Hence, as shown in Fig and 17 that the convex part 12 (between X-Y), placed at the interface between the air layer and the film eyes of a moth, the refractive index gradually and continuously increases from approximately 1.0, which corresponds to the refractive index of air to the refractive index of the material, which consists of the film (in the case of resin approximately 1.5). The amount of reflected light depends on the refractive index difference between environments, and therefore, when the artificial provision essentially no interface to the diffraction of light, almost all of the light will pass through the film eyes of a moth, which will lead to a large reduction of the reflectance on the film surface.

Fig is a schematic view in section, showing sticky structure, formed at the connection of the convex parts of the film eye of the butterfly. The part shown in Fig, formed when the upper ends 14 of the multiple convex portions 12 bent so that the convex part 12 are joined to each other, forming a sticky structure (a structure in the form of a bundle) 15. On Fig shows an example in which two or three of the upper end 14 are connected to each other, about the however, there are no specific restrictions on the number of convex parts 12, involved in the formation of adhesive structures 15.

Sticky structure 15 diffuses the light incident on the surface formed by the convex parts 12 of the film 11 eyes of a moth, and the light that comes from the side surface, on which there is formed a convex portion of the film 11 eyes of a moth, and exits from the side surface on which is formed a convex portion of the film 11 eyes of a moth. Thus, if the number of sticky structures increases, the display will likely appear blurred due to ambient light when the film eye of the disc attached to the surface of the display device.

In the film 11 eyes of the disc according to the first variant implementation of the sticky structure 15 is not formed or is formed with negligible impact. In the first embodiment, the diameter of each adhesive patterns are assumed to be not less than 0.3 microns. Sticky structure is less than 0.3 μm practically does not show the effects of light scattering. If the sticky structure 15 are not formed or, in other words, when the density of the number of sticky structures per unit area of the plane of the antireflective film is 0/μm2sticky structure 15 does not produce any effect, and therefore, the scattering does not occur.

Density the number of sticky structures per unit area of the plane FR is otrazhatelei film can be less than 2,1/μm 2. If the density decreased amount of adhesive structures to the specified limit, the blurring caused by diffraction of light will not be seen when the film eye of the disc according to the first variant of implementation attached to the surface of the display device, and therefore can be obtained a clear display.

Method for the production of the film eye of the disc according to the first variant implementation is described below with examples 1-3 and reference examples 1 and 2, which actually made the film eye of the moth.

First prepared a square glass substrate with a side of 10 cm, and then aluminum (Al)serving as the matrix material, was applied onto a glass substrate with a film thickness of 1.0 μm, using the spray. Then on the layer of aluminum repeatedly was in the process of anodic oxidation followed by etching, forming an anodized layer with a large number of small holes (concave portion)in which the distance between the points of the base adjacent holes corresponded to a length less than the wavelength of visible light. More specifically, the matrix produced by performing anodic oxidation, etching, anodic oxidation, etching, anodic oxidation, etching, anodic oxidation, etching and anodic of oxydrol the tion in the specified order (five processes of anodic oxidation and four etching process). During repeated execution of the process of anodic oxidation and etching in this way, formed the small holes have a tapered shape that tapers inward matrix. It should be noted that the substrate matrix is not limited to glass, and may be used instead of a metal material such as stainless steel or Ni, or material-based resin, such as polypropylene, polymethylpentene, polyolefin resin, formed of a cyclic olefin polymer (represented resins based on norbornene, such as resin, trade name "Zeonor" (manufactured by Zeon Corporation), and trade name "Arton" (manufactured by JSR Corporation), polycarbonate resin, polyethylene terephthalate, polyethylenterephthalat or triacetylcellulose. In addition, instead of the substrate with an aluminum coating can be used all-aluminium substrate. It should be noted that the matrix may have the form of a flat plate or a round (cylindrical) shape.

Anodic oxidation was performed under the following conditions: oxalic acid 0.6% by weight; liquid temperature of 5°C and the applied voltage 80V. The duration of anodic oxidation in the respective examples was different. When regulating the duration of anodic oxidation was receiving holes of the x dimensions. The relationship between the duration of anodic oxidation and size of the holes is presented in table 1 below. In all examples, the etching was performed under the following conditions: phosphoric acid 1 mol/l; liquid temperature 30°C; 25 minutes.

The resin solution 2P (photopolymer), with the ability to light transmission, put the drops on the surface of the respective matrices made with different height of the concave-convex structures in the production method described above, after which the film TAC superimposed on the layer of the 2P resin, formed from the resin solution 2P, making sure not to create bubbles. Then layer the 2P resin was irradiated with ultraviolet (UV) radiation with an intensity of 2 j/cm2for curing resin layer 2P, then a multilayer film consisting of a film utverzhdenii 2P resin and film that was removed from the matrix. Instead of 2P method (method of photopolymerization), described above, various other methods such as a method of hot pressing method (stamping), the method of injection molding, the method of copying, such as Sol-gel method, a method of manufacturing a thin multi-layer sheet materials concave-convex form and a method of manufacturing a thin material concave-convex shape with layer-by-layer coating can be selected respectively as a method of forming (mine is Finance) fine concave-convex shape on the basis of using the matrix, depending on the application of antireflective product, substrate and other things.

Finally, a multilayer film consisting of a film of the 2P resin serving as the film eye of a moth, and from film that, glued to the respective transparent acrylic plates, having thus, samples of the respective examples.

The depth of concave-convex form of the prepared samples and matrices were measured using SEM (scanning electron microscope). Sticky structure was also investigated using SEM.

Table 1 shows the corresponding numerical values of the duration of anodic oxidation, the depth of the concave parts of the matrix, the height of the convex parts of the film eye of the butterfly (the migrated object), which was transferred concave-convex shape of the matrix, the ratio of the transfer and aspect ratio of the film eye of the butterfly (the migrated object) with respect to examples 1-3 and reference examples 1 and 2.

Table 1
The duration of anodic oxidation (sec)The depth of the concave part
(nm)
The height of the transferred-s object
(nm)
The ratio of transfer Aspect ratio
Example 1 (matrix, 1)152311430,620,72
Example 2 (matrix, 2)203281750,530,88
Example 3 (matrix 3)243872190,571,10
Reference example 1 (matrix 4)335202550,491,28
Reference example 2 (matrix 5)386003730,621,87

Fig-34 are pictures top pictures-sectional and schematic images of the films eye of the moth produced in examples 1 and 2 and reference examples 1 and 2. On Fig-22 shows an example 1, Fig-26 shows an example 2, Fig-30 shows the background the first case 1 and Fig-34 shows the reference example 2. On Fig, 23, 27 and 31 are shown pictures of cross-sections, Fig, 24, 28 and 32 shows the schematic drawing in section, on Fig, 25, 29 and 33 shown pictures above and on Fig, 26, 30 and 34 are shown schematic views from above.

As seen on Fig, 22, 25 and 26, the film eye of the moth examples 1 and 2 adhesive patterns were not formed. On the other hand, as can be seen in Fig, 30, 33 and 34, on the film eye of the butterfly reference examples 1 and 2 was formed many sticky structures. In relation to film the eye of the moth examples 2 and 3, the adhesive patterns were found when observing films eye of a moth in a wider range. Density the number of sticky structures in the film eye of the disc of example 2 was 0.5/μm2while the density of the number of sticky structures in the film eye of the disc of example 3 was 1.5/mm2.

In areas that are surrounded by circles on Fig, 30, 33 and 34, indicated sticky structure, having a diameter of at least 0.3 μm, is formed at the connection of the upper ends of the convex parts with each other. The photos with the top view shown in Fig and 33, the length of the longitudinal side is 1.9 μm, and the length of the wide side is 2.5 μm, respectively, the surface area is equal to 4.8 μm2. Therefore, ten sticky structures, each of which has a surface area of 4.8 μm2formed n the film eye of the butterfly reference example 1, while nineteen sticky structures, each of which has a surface area of 4.8 μm2formed on the film eye of the butterfly reference example 2. In other words, the density of the number of sticky structures in the film eye of the butterfly reference example 1-2 is 2.1/μm2while the density of the number of sticky structures in the film eye of the butterfly reference example 2 was 4.0/μm2.

Fig-38 are pictures and a schematic image showing an enlarged image of the film eye of the disc according to the reference example 2. Fig is a photograph of the cross section, Fig is a schematic view in section, Fig is a photo from the top view and Fig is a schematic top view. As shown in Fig and 36, the upper ends of the convex parts of the film eye of the moth bent, thus connecting the upper ends of multiple convex parts in contact with each other, forming a sticky structure. In addition, Fig and 38, the white portions indicate the convex part of the film eye of the moth, and many of convex portions have a circular shape or elliptical shape, when viewed from the perpendicular direction to the surface of the film eye of the butterfly. On the other hand, the adhesive patterns formed when the upper ends of the convex parts are connected to each other, m is may be in the form of stars, rays which depart radially from the center, gourd shape or flower shape, formed in the overlapping circles and/or ellipses, or amorphous form, not with any regularity, when viewed from the perpendicular direction to the surface of the film eye of the moth.

Next compares the characteristics of the films eye of a moth, manufactured in examples 1-3 and reference examples 1 and 2. Fig is a graph showing the reflectance spectra of light reflected by the surfaces of the films eye of a moth, manufactured in examples 1-3 and reference examples 1 and 2.

As shown in Fig film eye of the disc according to example 1 shows a high reflectivity against light in the long wavelength region. More specifically, the reflectivity increases rapidly from about 500 nm. The reason for this is that the aspect ratio of each of the convex part in the film eye of the disc according to example 1 is small. The range of visible light ranges from 380 to 780 nm and therefore can be seen that although the reflectivity does not exceed 1% within the visible light range, likely to see a red or yellow tint. In addition, in the film eye of the disc according to example 2, the reflectivity is slightly increased from about 650 nm, and the window film eye of the disc according to example 1, the film eye of the disc according to example 2 shows a high reflectivity against light in the long wavelength region.

In the film eye of the disc according to reference examples 1 and 2, the aspect ratio is high, and therefore the reflectivity against light in the long wavelength region is low. However, in the shortwave region of increased reflectivity. The reason for this may be that because of the sticky structures shown in Fig-34, scattering light reflected on the surfaces of the films eye of the moth.

Fig is a graph showing transmission spectra of light passing through the surface of the films eye of a moth, manufactured in examples 1-3 and reference examples 1 and 2.

As shown in Fig similar to the transmission curve obtained with the films eye of the disc according to examples 1-3, but in the film eye of the disc according to reference examples 1 and 2, the light transmittance decreases in the shortwave region. The reason for this may be that because of the sticky structures is the scattering of light passing through the film eye of the moth.

Fig is a graph showing spectra of scattering light scattered on the surfaces of the films eye of the butterfly, made in the use of the Ah 1-3 and reference examples 1 and 2. As shown in Fig in the film eye of the disc according to reference examples 1 and 2, in particular, the brightness increases in the short wavelength region, it is necessary to understand that the component of light generated by an adhesive structures, causes an increase in brightness.

Spectra scattering was measured as follows. Fig is a conceptual image showing the evaluation system for evaluating the scattering characteristics of light reflected on the surface of the film eye of the moth.

As shown in Fig studied the subject 23 is a multilayer structure that includes a transparent acrylic plate (base) 21 and the film 22 eyes of a moth, located on a transparent acrylic plate 21. To perform measurement, the light source 24 was placed in the direction forming an angle of about 30° relative to the front surface (the side on which was formed concave-convex shape) film 22 eyes of a moth or, in other words, the main surface of the film 22 eyes of a moth, then light illuminated the main surface of the film 22 eyes of the moth from the direction of 30°. Black absorber 26, located perpendicular to the moving direction of the light, placed on the line of propagation of light, on the opposite side of the film eye of the disc relative to the light source 24. Then edit ritel 25 brightness and the absorber 27 arranged in the orthogonal direction relative to the light source 24 and the black absorber 26, or, in other words, in the direction perpendicular to the direction of light and at an angle of 60° relative to the main surface of the film 22 eyes of the butterfly. Therefore, the 25 meter brightness and the absorber 27 were located in mutually opposite positions around the film 22 eyes of the moth, and the direction of measurement of the meter 25 brightness and the absorber 27 were located opposite each other. The 25 meter brightness was turned to the front surface of the film 22 eyes of a moth, while the absorber 27 and facing the rear surface of the film 22 eyes of the moth.

Two of these sinks 26 and 27, the absorber 26 is placed on the line of propagation of light on the opposite side of the film 22 eyes of the moth to the light source, is used to absorb light (noise light)that passes through the film 22 eyes of a moth, after removing the component of the scattering of light falling on the film 22 eyes of the butterfly. Further, the absorber 26 and filter 27, the main surface which is perpendicular to the direction of measurement of the meter 25 brightness, serve to absorb the component of the light scattered on the surface of the film 22 eyes of a moth, which is dissipated to the rear surface of the film 22 eyes of a moth, which was removed component scattered in the direction of the front surface of the film 22 eyes motylek is.

As a 25 meter brightness used SR-UL1 (produced by Topcon Techno House Corporation). The measurement conditions were set so that was obtained angle measurements with a field of view of 2.0°, and the distance from the test object 23 was 40 see the Light that has passed to the rear surface of the film 22 eyes of the moth, was absorbed by the absorber 26 and the absorber 27. Thus, with this system of measurement was possible to measure the amount of light (amount of reflected/scattered light)scattered on the surface of the film 22 eyes of the moth and held to the rear surface of the film 22 eyes of the moth.

As the light source 24 used a xenon lamp (MC-961C, production Otsuka Electronics Co., Ltd.). The measurement conditions were set so that there was obtained a light intensity of 3000 Lux, the distance to the examined object was set equal to 15 cm

Then he made the film eye of the butterfly using the matrix (matrix 1-4), similar matrices of examples 1-3 and reference example 1, by replacing the material of the resin film 22 eyes of the moth other resins (resins A-D) of examples 1-3 and reference examples 1 and 2.

All of the resins A-D are acrylate UV-curable monomers or oligomers (from the series KAYARAD, manufactured by Nippon Kayaku Co., Ltd.), but differ from each other some of the characteristics of the mi, such as the dynamic modulus of elasticity (E'), dynamic loss modulus (E") and the glass transition temperature (TC).

Further, the modulus of elasticity of savings (E'), loss modulus (E") and temperature change tg δ resins A-D, respectively, was measured using the unit of measurement of the dynamic viscoelasticity DMS6100 (manufactured by Seiko Instruments Inc.).

Fig is a graph showing temperature dependence of tg δ of the resin A-D. the Value of tg δ (loss tangent) is the value of (E'/E"), calculated from the dynamic modulus of elasticity (E') and dynamic loss modulus (E"). Dynamic modulus of elasticity of savings (E') and dynamic loss modulus (E") are values measured when using the unit for the measurement of dynamic viscoelasticity DMS6100 and method corresponding to JIS K-7244, under the following conditions: dynamic amplitude and speed of the sample (pilot frequency) - 1 Hz; stretch mode; the distance between the clamps is 5 mm; the amplitude of the deformation - 10 μm; the initial value of the amplitude of the force of 100 mn and a rate of temperature rise to 2°C/min Then, as a rule, the temperature indicating the local maximum value of tg δ at each the curve corresponds to the glass transition temperature (TC).

As shown in Fig, all values on the curves indicate the temperature dependence of tg δ resins A-D are changed in accordance with the temperature, p is and all of the resins A-D are curves in the form of peaks. The curves corresponding to the resins A-D differ from each other by the angle of tilt, the temperature at the point of local maximum values, the value of the local maximum values, the half-width relative to the local maximum value.

The angle of tg δ was most gentle in the resin A, the steeper the resin D, is much steeper in resin C and the coolest at the resin B. the Temperature at the point of local maximum values of tg δ or, in other words, the glass transition temperature (TC)was estimated to be 48°C the resin B, 66°C the resin C and 84°C the resin D. it Should be noted that resin A showed no clear value of TC. However, the temperature of the resin when A local maximum value of tg δ was 18°C. the Local maximum value of tg δ was 0.21 in resin A, of 0.68 in resin B, and 0.40 in resin C and 0.38 in resin D. in Other words, the value of the local maximum values of tg δ was at least A resin, more resin D, is much greater in resin C and the highest at the resin B.

Half-width relative to the local maximum value, or in other words, temperature range, going from half the value of the local maximum value to the local maximum value, when determining the local maximum values of tg δ as a reference value, amounted to 92°C at A resin, resulting in the symmetry of the graph tg δ decreased, 26°C with the Ola B, 52°C the resin C and 52°C the resin D. in Other words, the half-width relative to the local maximum value was the most in A resin, less resin D, much less resin C, and the lowest in tar B. Relative to resin A, there was no symmetry peaks tg δ and had not received the exact value of TC. In this regard, "case in which the symmetry of the graphs tg δ absent and not received a clear value TS, is defined as the case in which the half-width divided between low temperature and high temperature near the temperature when the local maximum value of tg δ, with one of the temperature ranges region of low temperature and high temperature, at least two times greater than the other. Temperature ranges region of low temperature and high temperature half-width in the respective resins was 28°C and 64°C for resin A, 12°C and 14°C for the resin B, 30°C and 22°C for resin C and 34°C and 18°C for resin D.

Fig is a graph showing the temperature dependence of the dynamic modulus of elasticity (E') of resin A-D. As shown in Fig, all curves representing the temperature dependence of the dynamic modulus of elasticity (E') of the resins A-D, gradually drops with increasing temperature, but little change when the temperature is raised to or above a fixed tempera is URS. However, the curves differ from each angle.

The differential is within the range going from the initial point of change to endpoint changes on the curves representing the dynamic modulus of elasticity (accumulation) (E') of the resins A-D amounted vs.-7.9bn×10-7for resin A, of-1.7×10-8for resin B, -9,6×10-7for resin C and -8,2×10-7for resin D. in Other words, the slope of the curves representing the dynamic elastic modulus (E')was the lowest in the case of A resin, more in the case of resin D, is much greater in the case of resin C and the highest in the case of resin B.

Fig is a graph showing the temperature dependence of the dynamic loss modulus (E") of the resins A-D. As shown in Fig, all curves representing the temperature dependence of the dynamic loss modulus (E") of the resins A-D, vary, but in General gradually decrease with increasing temperature. However, the curves differ from each angle. In General, the slope of the curves representing the dynamic loss modulus (E") was lowest in the case of A resin, steadily steeper in the case of resins D and C, and the highest in the case of resin B.

(Evaluation test 1)

The film eye of the moth produced from resins A-D using the matrix 1 and set respectively as the film eye of the disc according to examples 4-7. Resin A corresponds to the use of the 4, resin B corresponds to example 5, the resin C corresponds to example 6 and resin D corresponds to example 7.

Fig and 47 are graphs showing the spectra of scattering light scattered on the surfaces of the films eye of the disc according to examples 4-7. On Fig shows the spectra of scattering based on an absolute value (W/St/m2) diffuse brightness (energy intensity), while Fig shows the spectra of scattering based on the degree of increase in diffuse brightness (energy intensity). On the ordinate axis of the graph shown in Fig, shows the absolute value of brightness in the scattering of light that is reflected on the surface of the film eye of a moth, or, in other words, a value obtained by subtracting (removing) the absolute value of the energy of the brightness of the light scattering on the surface of the acrylic plate (base), from the value of the radiance of the light scattering on the surface of the examined object in the conditions, when the film eye of the disc placed on the acrylic plate (base). On the ordinate axis of the graph shown in Fig, shows the degree of increase of the radiance in the scattering of light on the object surface on which is placed the film eyes of a moth, a relative of the radiance in the scattering of light reflected by the surface of the acrylic plate base), or, in other words, when the light scattering on the surface of the investigated object that is not placed in the film eye of the butterfly. A method similar to that described above with respect Fig used to measure the radiance.

As shown in Fig and 47, all of the films eye of a moth, formed from resins A-D when using the matrix 1, had not been significant changes in the scattering spectra of the light scattered on the surfaces of the films eye of the butterfly. Thus, it is possible to notice that in the case of films eye of the disc according to examples 4-7 there was no scattering of light caused by the formation of adhesive structures.

(Evaluation test 2)

The film eye of the moth were made from resins A-D when using the matrix 2 and set respectively as the film eye of the disc according to examples 8-11. Resin A is identical to example 8, the resin B corresponds to example 9, the resin C is identical to example 10 and resin D corresponds to example 11.

Fig and 49 are graphs showing the spectra of scattering light scattered on the surfaces of the films eye of the disc according to examples 8-11. Similarly Fig and 47, Fig shows the spectra of scattering based on the absolute value of the scattered brightness (energy intensity), and Fig shows the spectra of scattering based on the degree of increase in Russ what annoy brightness (energy intensity). The same way as described above with respect Fig used to measure the scattering spectra.

As shown in Fig and 49, all of the films eye of a moth, formed from resins A-D when using matrix 2, have not been significant changes in the scattering spectra of the light scattered on the surfaces of the films eye of the moth.

On Fig-55 shows the film eye of the moth produced in examples 9-1. Fig, 52 and 54 are photographs of the top view, and Fig, 53 and 55 are schematic images of the top view. Fig and 51 correspond to example 9, Fig and 53 correspond to example 10, and Fig and 55 correspond to example 11. Areas that are surrounded by circles on Fig-55, indicate sticky structure, having a diameter of at least 0.3 μm, is formed by the connection of the upper ends of the convex parts with each other. Density the number of sticky structures per unit area was 0.8/ mm2in the film eye of the butterfly shown in Fig and 51, 1,2/μm2in the film eye of the butterfly shown in Fig and 53, and 1.3/μm2in the film eye of the butterfly shown in Fig and 55.

Thus, it can be noted that the scattering of light caused by the formation of adhesive structures in the films eye of the disc according to examples 8-11 occurred.

(Evaluation test 3)

The film eye of the moth produced from resins A-D in the line is the reattaching the matrix 3 and set respectively as the film eye of the disc according to examples 12 to 14 and reference example 3. Resin A is identical to example 12, the resin B corresponds to reference example 3, the resin C is identical to example 13 and resin D corresponds to example 14.

Fig and 57 are graphs showing the spectra of scattering light scattered on the surfaces of the films eye of the disc according to examples 12 to 14 and reference example 3. On Fig shows the spectra of scattering based on the absolute value of the scattered brightness (energy intensity), and Fig shows the spectra of scattering based on the degree of increase in diffuse brightness (energy intensity). The same way as described above with respect Fig used to measure the scattering spectra.

As shown in Fig and 57, although not occurred significant changes in the scattering spectra of the light scattered on the surface of the film eye of the disc according to example 12, the change observed in the amount of light scattered on the surfaces of the films eye of the disc according to examples 13 and 14 and reference example 3. More specifically, the increase in brightness was observed in the short wavelength region in the film eye of the disc according to examples 13 and 14 and reference example 3, and a particularly large increase in reflectivity was observed in the film eye of the disc according to the reference example 3, in comparison with the films eye of the disc according to examples 3 and 14.

On Fig-61 shows the film eye of the moth produced in example 14 and reference example 3. Fig and 59 correspond to example 14, and Fig and 61 correspond to reference example 3. Areas that are surrounded by circles on Fig-61, indicate sticky structure, having a diameter of at least 0.3 μm, is formed by the connection of the upper ends of the convex parts with each other. Density the number of sticky structures per unit area was 1.9/μm2in the film eye of the butterfly shown in Fig and 59, and 3.1/μm2in the film eye of the butterfly shown in Fig and 61.

Thus, it can be noted that in the case of forming the film eye of the moth when using the die 3, the scattering of light caused by the formation of adhesive structures in the film eye of the disc formed of A resin, has not occurred. However, when used resin B or C, was a small scattering of light caused by the formation of small sticky structures, and the use of resin D was significant scattering of light caused by the formation of adhesive structures.

(Evaluation test 4)

The film eye of the moth produced from resins A-D when using the matrix 4 and set respectively as the film eye of the disc according to the reference examples 4-7. Resin corresponds to A reference example 4, the resin B corresponding to the reference example 5, resin C corresponds to reference example 6 and resin D corresponds to reference example 7.

Fig and 63 represent a graph showing spectra of scattering light scattered on the surfaces of the films eye of the disc according to the reference examples 4-7. On Fig shows the spectra of scattering based on the absolute value of the scattered brightness (energy intensity), and Fig shows the spectra of scattering based on the degree of increase in diffuse brightness (energy intensity).

As shown in Fig and 63, was observed by changing the amount of light scattered on the surfaces of the films eye of the disc according to all reference examples 4-7. More specifically, the increase in brightness was observed at relatively shorter wavelength in all the films eye of the moth, and compared with the results for the film eye of the disc according to the reference example 3, obtained in the evaluation test 3, all of the films eye of the disc according to the reference examples 4-7 registered higher brightness.

On Fig-67 shows the film eye of the moth produced in reference examples 4 and 5. Fig and 65 correspond to reference example 4, and Fig and 67 correspond to reference example 5. Areas that are surrounded by circles on Fig-67, indicate sticky structure, having a diameter of at least 0.3 μm, sformirovann the e in the connection of the upper ends of the convex parts with each other. Density the number of sticky structures per unit area was 4.5/μm2in the film eye of the butterfly shown in Fig and 65, and 12.6/μm2in the film eye of the butterfly shown in Fig and 67.

Thus, it is possible to notice that there were formed a sticky structure when the scattering was caused by the formation of adhesive structures in all the films eye of a moth, formed from resins A-D when using the matrix 4.

Table 2 shows the relationship between combinations of matrices 1-4 and resins A-D, as well as examples and reference examples. Next, table 3 shows estimates of the level of transparency defined by the observer during visual analysis, when combinations of matrices 1-4 and resins A-D were placed on a transparent substrate in the atmosphere when the external light intensity of 20,000 Lux (corresponding cloud day outdoors).

Table 2
Matrix 1Matrix 2Matrix 3Matrix 4
Resin AExample 4Example 8Example 12Reference example 4
Resin BExample 5Example 9Reference example 3Reference example 5
Resin CExample 6Example 10Example 13Reference example 6
Resin DExample 7Example 11Example 14Reference example 7

Table 3
Matrix 1Matrix 2Matrix 3Matrix 4
Resin AH
Resin BH
Resin CH
Resin DH

In table 3 the double circle indicates the display, which is absolutely not felt the blur circle denotes a display, which blurring is hardly felt, black triangle denotes a display, on which there is a slight blur within the allowable range, the white triangle indicates the display, which is felt unwanted blurriness, and H denotes a defective display, on which there is a significant blurring.

According to the presented results, blurriness, probably would be perceived in the actual viewing of the film eye of the butterfly reference examples 3-7, which showed high energy intensity. With the film eye of the moth examples 4-14, which showed a low energy brightness, on the other hand, you could get a clear display, which in reality is Eskom viewing blur would arise with a low probability.

Table 4 shows the increase (CD/m2) brightness (Y value)produced by the light scattered on the surfaces of the films eye of a moth, formed from combinations of matrices 1-4 and resins A-D. Further, Fig represents the histogram, which shows an increase (CD/m2) brightness (Y value)caused by the scattering on the surfaces of the films eye of a moth, formed from combinations of matrices 1-4 and resins A-D.

Table 4
Matrix 1Matrix 2Matrix 3Matrix 4
Resin A0,08710,02570,3041,56
Resin B0,07820,1411,11of 3.77
Resin Cstrength of 0.1590,225determined as 0.7202,32
Resin D0,05090,2850,652 2,01

As can be seen from tables 4 and Fig when increasing the brightness (Y value)caused by the scattering on the surface of the film eye of the moth is at least 1,11 (CD/m2), which corresponds to reference example 3, there is such a blur, in which the display with high quality cannot be obtained. If you increase the brightness (Y value) does not exceed 0,652 (CD/m2), which corresponds to example 14, the blur is not perceived, and therefore can be obtained a display with high quality.

Table 5 shows the density of the adhesive structures (units/mm2) with respect to combinations of matrices 1-4 and resins A-D. Further, Fig is a graph showing a correlation between the density of adhesive structures (units/mm2and increase the brightness (Y value).

Table 5
Matrix 1Matrix 2Matrix 3Matrix 4
Resin A0,60,11,54,5
Resin B 0,50,83,112,6
Resin C1,01,22,07,8
Resin D0,21,31,97,0

As can be seen from table 5, when the density of adhesive structures (units/mm2)formed on the surface of the film eye of the moth is at least 3,1 (units/mm2), which corresponds to Reference example 3, there is such a blur, in which the display with high quality cannot be obtained. If the density sticky structures not higher than 1.9 (units/mm2), which corresponds to example 14, on the other hand, the blurring is not perceived, and therefore can be obtained a display with high quality. Next, Fig shows that the brightness (Y value) increases with increasing density sticky structures.

Acrylate UV-curable monomers or oligomers can be used without additional processing as resins A-D used in the first embodiment. Alternatively, many types of acrylate UV-curable Monomeric or oligomeric resins can is to be combined respectively with the help of copolymerization or the like, taking into account such properties as hardness, flexibility, the ability to cure and adhesion ability. When combining multiple types of resins is possible to adjust the glass transition temperature (TC), dynamic modulus (E') and dynamic loss modulus (E") of the used resins.

For example, with the introduction of resin, which has a rigid skeleton, such as bisphenol-A, the glass transition temperature (TC) and dynamic modulus (E') increases. On the other hand, with the introduction of resin, which has a flexible skeleton, such as polyethylene glycol, the glass transition temperature (TC) and dynamic modulus (E') are reduced.

The glass transition temperature TC, the dynamic elastic modulus E', the dynamic loss modulus E", elongation at break, and so forth can also be adjusted using the plasticizer, cross-linking agent and so on. In the case of a plasticizer, adjustment can be made depending on the type and added amount of the latter. When increasing the amount of plasticizer, the glass transition temperature TC, the dynamic elastic modulus E' and the dynamic loss modulus E" is reduced, which leads to an increase in the elongation at break. In the case of cross-linking agent, with the increase of the added amount of the cross-linking agent or the degree of cross-linkage, the temperature of the glass is of TC, the dynamic elastic modulus E' and the dynamic loss modulus E" increase, causing a decrease in elongation at break. Therefore, adding a plasticizer and cross-linking agent, respectively, the characteristics can be adjusted so that they satisfy the target range.

Monofunctional acrylate monomer, a bifunctional acrylate monomer and a polyfunctional acrylate monomer can be specified as acrylate monomers that can be used in the antireflective film according to the first variant implementation.

Aliphatic acrylate monomer, acyclic acrylate monomer, acrylate monomer, ester-based, cyclic acrylate monomer, ester-based, acrylate monomer containing a hydroxyl group, an aromatic acrylate monomer, acrylate monomer containing carboxyl group, and so forth, can be listed as examples of the monofunctional acrylate monomer.

When comparing monofunctional acrylate monomers having identical molecular mass, TC tends to increase in the range of from aliphatic (linear) type, aliphatic type (branched), acyclic type and aromatic type. In the aliphatic type, TC is the lowest, when if estvo of carbon atoms in the ester groups is from 8 to 10, and increases with increasing number of carbon atoms. In acrylate monomers containing fluorine atoms, TC has a minimum value if the number of carbon atoms in the ester groups is from 8 to 10. In the resin formed from a monofunctional acrylate monomer, the Vehicle can be adjusted in the range from -80°C to 150°C.

The cured material containing a bifunctional acrylate monomer has a relatively high hardness. When using a bifunctional acrylate monomer, TC of the resin can be adjusted in the range from -30°C up to 200°C.

Polyfunctional acrylate monomer demonstrates excellent ability to curing, and the cured material containing polyfunctional acrylate monomer has a high hardness. When using a polyfunctional acrylate monomer, TC of the resin can be adjusted in the range from 80°C to 250°C.

Acrylate oligomers can be approximately classified, depending on its molecular structure, to epoxyacrylate the oligomers, urethaneacrylate the oligomers and preferability the oligomers.

The cured material containing epoxyacrylate oligomer has a high hardness and excellent heat resistance and chemical resistance. When using epoxyacrylate about what Homer, TC of the resin can be adjusted in the range from 80°C to 250°C.

The cured material containing urethaneacrylate oligomer, typically demonstrates superior strength and the ability to expand, and has flexibility. When using urethaneacrylate oligomer, TC of the resin can be adjusted in the range from -50°C up to 80°C.

Caulk materials containing preferability oligomer, cover a wide range of materials, including soft and hard materials. When using poliefirakrilaty oligomer, TC of the resin can be adjusted in the range from 20°C to 100°C.

The siloxane-acrylate oligomer or the like when added to polybutylcyanoacrylate the oligomer having impact resistance, increases resistance to weathering, abrasion resistance, water repellency and flexibility, in addition to other characteristics, or can also be used the other oligomer.

The present application claims the priority of patent application 2009-141130, filed in Japan on 12 June 2009, according to the Paris Convention and the national legislation in the specified state, the entire contents of which are incorporated in this description by reference.

Explanation RefDes

11, 22: film eye of the moth

12: the convex part

13: support

14: the upper end of the

1: sticky structure

16: framework

21: transparent acrylic plate (base)

23: the object of study

24: the light source

25: measuring brightness

26, 27: the absorber

1. The antireflective film containing on its surface structure of the eyes of a moth, which includes many convex parts, and the width between the tops of adjacent convex parts is not greater than the wavelength of visible light, the structure of the eyes of the moth includes sticky structure formed by the connection of the upper ends of the convex parts with each other, and the diameter of the adhesive structure is less than 0.3 μm.

2. The antireflective film according to claim 1, in which the aspect ratio of each of a large number of convex parts less than 1.0.

3. The antireflective film according to claim 1 or 2, in which the height of each of a large number of convex parts is less than 200 nm.

4. The antireflective film according to claim 1 or 2, in which the aspect ratio of each of a large number of convex parts is greater than or equal to 0.8.

5. The antireflective film according to claim 1 or 2, in which the height of each of the multiple convex portions is greater than or equal to 160 nm.

6. The antireflective film according to claim 1, in which the local maximum value on the curve representing the characteristic of the temperature dependence of tgδ material forming the antireflective film, does not exceed 0,4.

7. Protivooterne the tion film according to claim 1, in which a local maximum value on the curve representing the characteristic of the temperature dependence of tgδ material forming the antireflective film is not more than 0.3.

8. The antireflective film according to claim 6 or 7, in which the aspect ratio of each of a large number of convex parts is not less than 0.7 and not more than 1.1.

9. The antireflective film according to claim 6 or 7, in which the height of each of a large number of convex parts is not less than 140 nm and not more than 220 nm.

10. The antireflective film according to claim 6 or 7, in which the aspect ratio of each of a large number of convex parts is not less than 0.9 and not more than 1.1.

11. The antireflective film according to claim 6 or 7, in which the height of each of a large number of convex parts is not less than 180 nm and not more than 220 nm.

12. The antireflective film according to claim 1, in which the width of the local maximum value of the curve representing the characteristic of the temperature dependence of tgδ material forming the antireflective film is not less than 52°C.

13. The antireflective film according to claim 1, in which the width of the local maximum value of the curve representing the characteristic of the temperature dependence of tgδ material forming the antireflective film is not less than 92°C.

14. The antireflective film according to item 12 or 13, in which the aspect ratio of each of the multiple n is clich parts is not less than 0.7 and not more than 1.1.

15. The antireflective film according to item 12 or 13, in which the height of each of a large number of convex parts is not less than 140 nm and not more than 220 nm.

16. The antireflective film according to item 12 or 13, in which the aspect ratio of each of a large number of convex parts is not less than 0.9 and not more than 1.1.

17. The antireflective film according to item 12 or 13, in which the height of each of a large number of convex parts is not less than 180 nm and not more than 220 nm.

18. The antireflective film according to claim 1, in which the differential curve representing the characteristic of the temperature dependence of the dynamic modulus of elasticity of the material forming the antireflective film, not less of-1.0×10-8within the range going from the initial point of change to endpoint changes.

19. The antireflective film according to claim 1, in which the differential curve representing the characteristic of the temperature dependence of the dynamic modulus of elasticity of the material forming the antireflective film, no less -0,8×10-8within the range going from the initial point of change to endpoint changes.

20. The antireflective film according to claim 1, in which the differential curve representing the characteristic of the temperature dependence of the dynamic modulus of elasticity of the material forming the antireflective film is not greater than 1.0×10-8in the limits of the range, going from the initial point of change to endpoint changes.

21. The antireflective film according to claim 1, in which the differential curve representing the characteristic of the temperature dependence of the dynamic modulus of elasticity of the material forming the antireflective film is not more than 0.8×10-8within the range going from the initial point of change to endpoint changes.

22. The antireflective film according to any one of p-21, in which the aspect ratio of each of a large number of convex parts is not less than 0.7 and not more than 1.1.

23. The antireflective film according to any one of p-21, in which the height of each of a large number of convex parts is not less than 140 nm and not more than 220 nm.

24. The antireflective film according to any one of p-21, in which the aspect ratio of each of a large number of convex parts is not less than 0.9 and not more than 1.1.

25. The antireflective film according to any one of p-21, in which the height of each of a large number of convex parts is not less than 180 nm and not more than 220 nm.

26. The antireflective film according to any one of p-21, in which the dynamic modulus of elasticity not less than 0.1 GPA at 25°C.

27. The antireflective film according to any one of claims 1 or 2, in which the glass transition temperature of the material forming the antireflective film, below 200°C.

28. Display device, comprising proceviat acatalog film according to any one of claims 1 or 2.

29. A translucent element, comprising the antireflective film according to any one of claims 1 or 2.



 

Same patents:

FIELD: physics.

SUBSTANCE: antireflection film has, on its surface, a moth-eye structure including a plurality of convex portions such that a width between vertices of adjacent convex portions is not greater than a wavelength of visible light, wherein the moth-eye structure includes a sticking structure formed when tip end portions of the convex portions are joined to each other. The diameter of the sticking structure is greater than or equal to 0.3 mcm and density of the number of sticking structures per unit area of the plane of the antireflection film is lower than 2.1 units/mcm2.

EFFECT: reduced light scattering.

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9 cl, 59 dwg

Optical element // 2451311

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46 cl, 41 dwg

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EFFECT: increased beam divergence angle after micro-structured optics up to 170-180° (depending on source used) with efficiency of 80-90% and with fully controlled shape of output beam.

14 dwg

FIELD: chemistry.

SUBSTANCE: germanium monocrystals are grown in crystallographic direction [111] after holding at melting point for 1-2 hours, with temperature gradient at the crystallisation front in the range of (10.0÷18.0) K/cm, which provides dislocation density on the level of (2·104-5·105) per cm2.

EFFECT: invention enables to obtain germanium monocrystals with considerable increase in signal reception area due to directed introduction of a given concentration of dislocations into the grown crystal and conversion of said dislocations from standard crystal defects to active elements of infrared optical devices.

3 dwg, 1 tbl

FIELD: physics.

SUBSTANCE: antireflection film has, on its surface, a moth-eye structure including a plurality of convex portions such that a width between vertices of adjacent convex portions is not greater than a wavelength of visible light, wherein the moth-eye structure includes a sticking structure formed when tip end portions of the convex portions are joined to each other. The diameter of the sticking structure is greater than or equal to 0.3 mcm and density of the number of sticking structures per unit area of the plane of the antireflection film is lower than 2.1 units/mcm2.

EFFECT: reduced light scattering.

29 cl, 69 dwg

Contact lenses // 2486920

FIELD: medicine.

SUBSTANCE: invention refers to an ophthalmic product represented by a sealed and sterilised package comprising a packaging solution and a soft hydrogel contact lens immersed in the packaging solution. The soft hydrogel contact lens comprises a polymer matrix, a first leaching polymeric lubricant and a second leaching polymeric lubricant, wherein the second leaching polymeric lubricant has an average molecular weight at least 3 times greater than the average molecular weight of the first leaching polymeric lubricant. The packaging solution contains approximately 0.1 wt % to approximately 1 wt % of a hydroxyl-containing polymer increasing the viscosity and specified in the group consisting of hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose, and mixtures thereof, polyethylene glycol having a molecular weight of 400 or less, α-oxo-polyatomic acid or a salt thereof in an amount sufficient to provide a reduced oxidative degradability of polyethylene glycol in the packaging solution with the viscosity from approximately 2.0 to approximately 8.0 cps at 25°C, one or more buffer agents in an amount sufficient to provide a pH of the solution equal to 6.0 to 8.0, and wherein the packaging solution has an osmolality from approximately 200 to approximately 450 mOsm/kg. What is also described is a method for producing the soft contact lens.

EFFECT: helping with the initial discomfort of an individual who wears the contact lenses and comforting the above individual for a period of time longer than 6 h.

15 cl, 6 ex

FIELD: chemistry.

SUBSTANCE: method involves loading starting separate silver chloride and silver bromide salts into a container made of heat-resistant glass, fusing said salts to a given composition of solid solution, growing a monocrystal in a halogenating atmosphere by moving the container in a temperature gradient, cooling the grown crystal to room temperature and removing the crystal from the container; the monocrystal is then heated at a rate of 50-60°C per hour to temperature of 250-270°C, held at said temperature for 1-2 hours, cooled at a rate of 20-25°C per hour to temperature of 100-150°C and then cooled at a rate of 30-40°C per hour to room temperature.

EFFECT: reduced internal stress in the crystalline workpiece, improved optical homogeneity and reduced optical losses.

2 ex

FIELD: physics.

SUBSTANCE: flat lens made from leucosapphire is made from a plastically deformed workpiece, wherein the axis of symmetry of the flat lens coincides with the height of the cone of optical axes of the plastically deformed workpiece. The entrance and exit surfaces are flat and perpendicular to the axis of symmetry. The method of making the flat lens involves making a concave-convex workpiece by plastic deformation - bending the plane-parallel plate from the Z crystal cut. The lens is formed by removing an excess layer of material from the workpiece as a plane-parallel plate, perpendicular to the axis of symmetry of the workpiece, which is superposed with the axis of the cone of optical axes, of a given thickness. The entrance surface of the flat lens lies at a distance x<δ from the vertex of the workpiece, where δ is the thickness of the workpiece.

EFFECT: forming a flat converging lens from leucosapphire for extraordinary beams.

2 cl, 2 dwg

FIELD: metallurgy.

SUBSTANCE: mould for formation of a moth eye structure on the surface comprises a base from glass or plastic, an inorganic sublayer, a buffer layer, containing aluminium, an aluminium layer and a porous layer of aluminium oxide, having on the surface a tilted structure of moth eye with multiple grooves, the size of which in two dimensions visible in direction of the normal line to the surface makes at least 10 nm and less than 500 nm. The method includes the following stages: (a) the mould base is provided from glass or plastic, an inorganic sublayer, a buffer layer, containing aluminium, and an aluminium layer, (b) the aluminium layer is partially anodised for formation of the porous layer of aluminium oxide with multiple grooves, (c) the porous layer of aluminium oxide is exposed to etching, increasing grooves in the porous layer in size, and (d) the porous layer of aluminium oxide is anodised for growth of grooves.

EFFECT: increased adhesion between an aluminium layer and a base.

8 cl, 2 tbl, 4 ex, 7 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to opto- and microelectronics and can be used to make opal-like structures. The method of producing photonic-crystal structures based on metal oxide materials involves filling a template consisting of monodispersed micropheres of polystyrene, solutions of metal-containing precursors, followed by annealing the structure on air at temperature of 450-550°C for 8-10 hours. The precursors from which the structure is formed are saturated alcohol solutions of tin dichloride SnCl2·2H2O or zinc nitrate Zn(NO3)2·2H2O.

EFFECT: invention enables to obtain photonic-crystal structures based on SnO2 and ZnO with a photonic stop band in the visible or near infrared spectral range and porosity of not less than 85%.

5 dwg

FIELD: process engineering.

SUBSTANCE: inventions relate to mould intended for moulding antireflection structure on moulded product. Proposed mould comprises flexible polymer film, layer of cured resin arranged thereon and layer of porous aluminium oxide made on aforesaid layer. Porous aluminium oxide layer has reverse prominent surface structure. Said structure has multiple recesses. Size of said recesses, if seen in perpendicular direction to said surface, varies between 10 nm and 500 nm. Flexible roller-shaped mould can be arranged on substrate outer surface. Said mould is used to form antireflection structure on polarisation plate. For this, said plate is displaced relative to mould. Note here that prior to forming said structure, polarisation plate axis is properly arranged parallel with roller perimetre, roller length making 2πr, where r is roller radius.

EFFECT: simplified production.

15 cl, 18 dwg

FIELD: physics.

SUBSTANCE: antireflective film which reduces reflection of visible light on the surface of a substrate has a wavelength dispersion structure for causing a first wavelength dispersion of visible light passing through said antireflective film, and contains wavelength dispersion material for causing a second wavelength dispersion of visible light passing through said antireflective film. Visible light in the range from 380 nm to 780 nm, passed through the antireflective film, has light transmission fluctuation which is less than 0.5% of the transmission value at wavelength of 550 nm. The method of making the film involves depositing a visible light-cured resin onto the substrate which has a UV absorbing component in order to form a film; forming a rough part on the surface of the film, having a plurality of protrusions; the space between peaks of neighbouring protrusions is equal to or less than the wavelength of visible light; irradiating the film with visible light on the side of the substrate and curing the film to form an antireflective film.

EFFECT: preventing wavelength dispersion of light passing through the antireflective film, which creates a display colouring which is different from the colour of the display itself.

8 cl, 16 dwg

FIELD: chemistry.

SUBSTANCE: claimed invention relates to ophthalmological device, method of its obtaining. Device contains antimicrobial particles of metal salts, which have size less than approximately 200 nm, dispersed throughout polymer mass. Device ensures at least 0.5 log reduction of at least one of Pseudomonas aeruginosa and S.aureus, and opacity value constituting less than 100%, with 70 micron thickness, in comparison with CSI lens.

EFFECT: invention possesses high antibacterial activity 3 independent claims, 34 dependent claims of invention formula.

17 tbl, 46 ex, 5 dwg

FIELD: polymer materials.

SUBSTANCE: invention provides composition containing from about 50 to about 80% of component selected from group consisting of di(meth)acylate of ethoxylated bisphenol A, di(meth)acylate of non-ethoxylated bisphenol A, di(meth)acylate of propoxylated bisphenol A, epoxy(meth)acrylates of bisphenol A, and mixtures thereof; from more than 0 to about 30% of component selected from group consisting of tetrahydeofuryl (meth)acrylate, isobornyl (meth)acrylate, cyclohexyl (meth)acrylate, and mixtures thereof; from more than 0 to about 15% of component selected from group consisting of dipentaerythritol penta(meth)acrylate, trimethylolpropane tri(meth)acrylate, pentaerythritol tri(meth)acrylate, tri(meth)acrylate of ethoxylated or propoxylated trimethylolpropane, tri(meth)acrylate of ethoxylated or propoxylated glycerol, pentaerythritol tetra(meth)acrylate, bis-trimethylolpropane tetra(meth)acrylate, dipentaerythritol hexa(meth)acrylate, and combinations thereof. Such composition is suited to manufacture eyeglass lenses.

EFFECT: expanded possibilities in manufacture of polymer-based lenses, including multifocal ones.

21 cl, 3 tbl, 18 ex

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