Carrier pin, lighting device, display device and television receiving device

FIELD: electricity.

SUBSTANCE: in carrier pin (11) used for support of optical elements (43-45) though which part of light passes from light-emitting diode (24) a part of peak (14) contacting with light-diffusing plate (43) is formed of light-reflective material while a part of rack (12) supporting peak (14) is formed of light-transmitting material.

EFFECT: eliminating mom-uniformity of lighting.

12 cl, 13 dwg

 

The technical field to which the invention relates.

The present invention relates to a supporting pin, lighting device, display device and television receiving device.

The level of technology

Typically, the liquid crystal display device (display device), which includes the liquid crystal display panel nesvetailova type (panel display), also includes a backlight (lighting device), which delivers the light to the liquid crystal display panel. The backlight includes various optical elements used to control the direction of light from the built-in light source such as a linear light source such as a fluorescent tube, or a point source of light, such as light-emitting element).

For example, in module 149 backlight patent document 1 shown in figa, two optical element 146 and 147 are located on the edge of the frame 141 of the rear lights, and in the process, in which the optical elements 146 and 147 transmit the light of a fluorescent tube 124 through itself, the radiation direction of light is controlled. I.e. due to the presence of optical elements 146 and 147, as described above, the light from the module 149 backlight is controlled so that it does not occur Nera is the principle quantity of light.

The list of bibliographic references

Patent documents

Patent document 1. JP-A-H07-64084 (see paragraph 0027)

The invention

Technical task

In the above configuration, however, as shown in figa, the support pins 111 to support the optical elements 146 and 147 is mounted on the module 149 backlight. If the support pin 111 is made of a transparent resin, as shown in figv, part of the light transmitted in different directions through the optical elements 146 and 147, often comes into abutment pin 111 from the end of the top (see the arrow indicated by dotted lines with alternating long and short dashes).

After the light in the optical elements 146 and 147 is supplied to the inside of the support pin 111, as described above, a part of optical elements 146 and 147 about the support pin 111 becomes darker environment, leading to the uneven amount of light emitted from the module 149 backlight.

The present invention is made to solve the above problem. The purpose of the present invention is to provide a support pin, which suppresses the unevenness of the amount of light emitted from the lighting device, for example, backlight, and thereby are made use of in the lighting device is ve, and additionally, to provide an electronic device, for example, lighting device, etc.

The solution of the problem

The support pin supports an optical element that transmits the light from the light source through itself. When the part above the support pin which is in contact with the optical element, is set as the upper part, and the part which supports the upper part, is specified as part of the rack, the upper part is made of a light reflecting material, and the rack is made of svetopropusknaya material.

According to this configuration, when light passes in different directions through the optical element, the portion of light in the optical element, which otherwise should be received in the bearing pin, is reflected by the upper part, made of light reflecting material. Thus, not permitted the admission of light in the optical element in the bearing pin so that it is unlikely that at the upper part of the support pin becomes darker compared to the surrounding environment.

In addition, in contrast to the upper part of the rack support pin is made of svetopropusknaya material. Therefore, even when the rack is irradiated with light from the light source, the shadow is cast is less likely. Still the way the provision of lighting device that uses light from the light source, the above reference pin, makes it unlikely that there has been uneven quantity of light of the lighting device (i.e. we can say that the support pin is an element that is used with benefit in the lighting device).

Preferably, the upper part is wedge-shaped (for example, a cone shape). According to this configuration, the area of the support pin, in which it is in contact with the optical element, is relatively small. Thus, the region of the optical element, in which the support pin is reflected, also becomes small, so that it is unlikely that there is an uneven amount of light emitted through the optical element, which is caused by reflection from the reference pin.

In addition, if the area of the optical element, in which the support pin is reflected, should be even less, the upper part can be formed from the paint.

In addition, preferably the rack is of the form of the rack (for example, the shape of the polygonal hours), which includes a flat surface along the direction of the axis of the pin for the pin. This configuration allows you to adjust the position of the flat surface by changing the situated the anchor pin and thus can guide the reflected light from the flat surface in the desired direction. Thus, the reflected light from the reference pin is regulated so that it is not permitted visual protrusion of the support pin when viewed from the outside.

Incidentally, the reference pin can be formed so that it is continuous with the functional element having the intended use, other than the support of the optical element. For example, the functional element may be an element for clamping the light source. In addition, the functional element may be an element for connecting a variety of other elements.

The reason for this is that, when the lighting device includes a support pin, performed as described above, the optical element, which is supported by the support pin, and a light source which supplies light to the optical element, contain such multifunctional anchor pin, the number of components used can be reduced.

More specifically, in the lighting device, the support pin is formed so that it is continuous with the functional element having the intended use, other than the support of the optical element and the functional element has, for example, the intended use, to hold the linear light source which is a light source. In addition, in another example, the lighting device is a, the functional element has the intended use, to connect the mounting substrate on which the light source is mounted with the frame.

Preferably, if multiple light sources is located in the rows and the support pin is placed between adjacent light sources, the side surface of the rack along the direction of the axis of the pin for the reference pin is orthogonal to the direction in which are placed adjacent the light sources are placed between the anchor pin.

According to this configuration, when the light from the light source becomes incident on the side surface of the rack supporting pin, the portion of light that does not pass through the rack, and is reflected from it, often goes in the direction in which it returns to the light source. This reduces the amount of light that is reflected so that it goes in different directions relative to the reference pin, and thus it is unlikely that the reference pin is visually when viewed from the outside.

We can say that the display device comprising the lighting device configured as described above, and a display panel (for example, a liquid crystal display panel that receives light from the lighting device, also fall within the scope of the present image is etenia, and that television receiving device that includes a display device, also fall within the scope of the present invention.

Advantages of the invention

According to the reference pin of the present invention, with the support of the optical element, which receives light from the light source when the optical element receives light from the light source, the reference pin does not allow admission of light in different directions through the optical element, and also does not allow a drop shadow. Thus, the lighting device described above, the reference pin makes it unlikely that, in the light of the lighting device, there is an uneven amount of light caused by the inflow of light into the support pin, and the unevenness of the light amount caused by the drop shadow due to the presence of the reference pin.

Brief description of drawings

Figure 1 is a partial view in cross section on the basis of Fig.9 (a view in cross section along the line A-A'indicated by the arrows in Fig.9).

Figure 2 is a view in perspective of the support pin.

Figure 3 is a diagram of optical paths showing one example of the optical paths of the light in the backlight module.

Figure 4 is a top view of the bottom surface CT the Asa backlight, on which are mounted the led modules.

Figa is a diagram of optical paths showing one example of the optical paths of the light that passes through the lens.

FIGU is a diagram of optical paths showing the optical path as a comparative example.

6 is a view in perspective of the lens.

Fig.7 is a view in perspective of the support pin.

Fig is a view in cross section of the backlight module, comprising a support pin having a function rivets.

Figure 9 is an exploded view in perspective of liquid crystal display devices.

Figure 10 is an exploded view in perspective of the LCD television receiver including the liquid crystal display device.

Figa is a view in cross section of a traditional backlight.

FIGU is a diagram of optical paths of the light in the conventional backlight module.

Detailed description of embodiments of the invention

Option 1 implementation

The following describes one variant of implementation with regard to the accompanying drawings. Some of the drawings, hatching, reference numbers of elements, etc. may be omitted for convenience, and in this case you need to refer to other drawings. Nevertheless the, for convenience, the shading can be provided even in a form different from the form in cross section.

Figure 10 shows a liquid crystal television receiver 89, which includes a liquid crystal display device (display device) 69. The liquid crystal television receiver 89 projected image when receiving television broadcast signals and, therefore, may be referred to as a television receiving device. Figure 9 is an exploded view in perspective showing the liquid crystal display device. As shown in this drawing, the liquid crystal display device 69 includes a liquid crystal display panel 59, the module 49 backlight (lighting device), which delivers the light to the liquid crystal display panel 59, and a housing HG (front housing HG1,..., rear housing HG2), which places these elements between the front and rear housings HG1 and HG2.

The liquid crystal display panel 59 is formed by the location of the substrate 51, the active matrix including a switching element, for example, TFT (thin film transistor), etc. and the opposite substrate 52 opposite substrate 51 active matrix, through the use of a sealing material (not shown). The stage is niteline, liquid crystal (not shown) is injected into the gap between the two substrates 51-52.

The polarization film 53 is attached to each side of the light-receiving surface of the substrate 51 of the active matrix and a side radiation located opposite to the substrate 52. The liquid crystal display panel 59, performed as described above, displays images through the use of changes in the transmittance caused by the tilt of liquid crystal molecules.

Then, the following describes the module 49 backlight, placed directly under the liquid crystal display panel 59. Module 49 backlight includes an led module (light-emitting module MJ, the frame 41 of the rear lights, anchor pin 11, the reflective sheet 42 large, light-diffusing plate 43, a prism plate 44 and microlensing plate 45.

Led module MJ includes a mounting substrate 21, an led (light emitting diode) 24 and the lens 26.

The mounting substrate 21 is rectangular substrate plate shape and has a mounting surface 21U that hosts a multitude of electrodes (not shown). Additionally, the led 24, which is a light-emitting element is mounted on each of these electrodes. On the mounting surface 21U of the mounting substrate 21, forms the base resista film (not shown), which acts as a protective film. Resista film preferably has a white color so that it has reflectivity, although specific limits on it. The reason for this is that, even when light becomes incident on resistol film, the light is reflected from resistol film and performed with the opportunity to go to the outside, and thereby the problem of light absorption by the mounting substrate 21, which leads to non-uniformity of the amount of light permitted.

The led 24 is a light source and emits light on the basis of current through each of electrodes on the mounting substrate 21. As LEDs 24 are used for many types of LEDs, including the following. For example, the led 24 is used for the led type that includes a blue light emitting led chip (light-emitting crystal) and a phosphor that emits yellow fluorescent lights when receiving light from the led chip (specific limits on the number of led crystals not). The led 24 of this type generates white light based on light from the blue light emitting led chip and a fluorescent backlight.

The phosphor included in the led 24, however, is not limited to luminova the Ohm, which emits yellow fluorescent light. For example, the LEDs 24 can be used led type, which includes a blue light emitting led chip and phosphors, which respectively emit green fluorescent backlight and the red luminescent backlight when receiving light from the led chip, so that white light is formed on the basis of the blue light from the led chip and the fluorescent backlight (green light...red light).

Led crystal included in the led 24, is also not limited to a blue light emitting led chip. For example, the LEDs 24 can be used led type that includes a red led chip that emits red light, a blue led chip that emits blue light and a phosphor which emits green fluorescent backlight when receiving light from the blue led chip. The reason for this is that led crystal 24 of this type can generate white light based on the red light from the red led chip, a blue light from the blue led chip and a green fluorescent lights.

In addition, the led 24 may be of a type which does not include a phosphor. For example, the LEDs 24 mo is et to be used led type includes a red led chip that emits red light, a green led chip, which emits green light, and blue led chip that emits blue light, so that white light is formed on the basis of light from all led crystals.

In addition, the module 49 backlight shown in figure 9, includes, as the mounting substrate 21, a mounting substrate such relatively short type that five LEDs 24 are mounted in a line on each sheet of the substrate, and the mounting substrate such relatively long type that eight LEDs 24 are mounted in a line on each sheet of the substrate.

In particular, these two types of mounting substrates 21 are placed so that the series of thirteen LEDs 24 is formed as a combination of a series of five LEDs 24 and rows of eight LEDs 24, and a pair of two types of mounting substrates 21 are also placed in the direction crossing (for example, orthogonal to) the direction in which are placed thirteen LEDs 24. Thus, the LEDs 24 are arranged in a matrix form and emit planar light (for convenience, the direction in which are placed the various types of mounting substrates 21, is defined as the direction along the X-axis direction, which is identical to the type of mounting substrates 21, sets the AK direction along the Y-axis, and the direction crossing the direction along the axis X and the direction Y, is defined as the direction along the Z axis).

Thirteen LEDs 24, disposed in the direction along the X-axis, electrically connected in series, and each series of thirteen LEDs 24, the United thus in series, electrically connected in parallel with a different set of thirteen LEDs 24, connected in series, which is adjacent to it along the direction of the y axis. These LEDs 24 that are placed in a matrix form, are excited in parallel.

Lens 26 receives the light from the led 24 and skips (emits) light through itself. More specifically, the lens 26 is on the side of the rear surface (light-receiving surface) opposite to the surface 26S of the lens groove DH on the housing (see figure 1 below), allowing for the placement of the led 24, and is located above the led 24, so that the groove DH on the housing and the led 24 coincide in position with each other. Led 24 thereby is introduced into the lens 26 so that the light from the led 24 is reliably fed to the inside of the lens 26. Most of the light supplied thereby, and then is emitted to the outside through the surface 26S of the lens.

As shown in Fig.9, the frame 41 of the rear lights is an element having, for example, box-like shape, and accommodates the multiple led modules MJ in such a way that light is iodine modules MJ densely laid on the bottom surface 41B. The bottom surface 41B of the frame 41 of the rear lights and the mounting substrate 21 of the led module MJ are connected to each other, for example, through the rivet (see Fig.7 below).

The support pin 11 is mounted on the bottom surface 41B of the frame 41 of the rear lights, and thereby rises from the bottom surface 41B and supports the light-diffusing plate 43, a prism plate 44 and microlensing plate 45 (frame 41 backlight, together with the supporting pin 11 may be supported through the tops of its side wall, a light-diffusing plate 43, a prism plate 44 and the microlens 45, which are arranged in layers in this order). The support pin 11 is described in detail later.

The reflective sheet 42 large size is an optical element having a reflective surface 42U, and is on many led modules MJ, arranged in a matrix form, and the rear surface of the reflective surface 42U is located opposite the led modules MJ. The reflective sheet 42 is large in size, however, includes the transit hole 42H formed through it so that it coincides in position with the lens 26 of each of the led modules MJ, and thereby the lens 26 is opened relative to the reflective surface 42U (some holes 42H are of the type that opens the above reference is pin 11).

In this case, even if a portion of the light emitted from the lens 26, goes to the side of the bottom surface 41B of the frame 41 of the rear lights, some light is reflected by the reflective surface 42U of the reflective sheet 42 is large in size and goes in the direction from the bottom surface 41B. Thus, due to the presence of the reflective sheet 42 is large in size, the light from the led 24 to force goes to the light diffusing plate 43 opposite the reflective surface 42U, without losses.

A light-diffusing plate 43 is an optical element plate, put on the reflective sheet 42 is large in size, and diffuses light emitted from the led module MJ, and the reflected light from the reflective sheet 42 is large in size. I.e. a light-diffusing plate 43 diffuses the planar light formed by a variety of led modules MJ, so the light is diffused over the entire area of the liquid crystal display panel 59.

Prismatic plate 44 is a sheet-like optical element, put on the light diffusing plate 43. Prismatic plate 44 is formed by placing, for example, triangular prisms, going in the same direction (linearly)in the direction crossing the one direction in the plane of the prismatic plate 44. In this configuration, as the op is Sano above, prismatic plate 44 rejects the characteristic of light emission from a light-diffusing plate 43. Preferably, the prisms were along the direction Y in which the number of adjacent LEDs 24 is small, and were placed along the direction of X axis, in which a number of spaced LEDs 24 is large.

Mikrolinzy plate 45 is a sheet-like optical element, put on prismatic plate 44. The particulates which refract and diffuse light are distributed in microlensing plate 45. In this configuration, as described above, mikrolinzy plate 45 does not cause local convergence of light from the prism plate 44, thereby suppressing the occurrence of non-uniformity of the brightness (uneven amount of light) to the light.

Module 49 backlight, performed as described above, ignores the planar light formed by a variety of led modules MJ, through many sheets of optical elements 43-45, and thereby gives the light in the liquid crystal display panel 59. Thus, by receiving light (light from a backlight) from the module 49 backlight, the liquid crystal display panel 59 nesvetailova type provides an enhanced display.

Now, the following describes in detail operaisti 11 in respect of the form in cross-section, shown in figure 1 (view in cross section along the line A-A'indicated by the arrows in figure 9), and species in the long term, shown in figure 2. As shown in figure 1, the support pin 11 is placed between adjacent mounting substrates 21 and is mounted on the bottom surface 41B of the frame 41 of the rear lights. The support pin 11 provided raised from the bottom surface 41B, speaking to a light-diffusing plate 43 through holes 42H formed through the reflective sheet 42 is large in size.

As shown in figure 2, the supporting pin 11, described above, includes part of 12 hours, setuplayout part 13 and the upper part 14.

Part of 12 hours is the primary site of the support pin 11 and is, for example, by a bar (rectangular stand)having a rectangular bottom surface. Part 12 of the rack is made of transparent resin, which transmits the light through itself (material based on resin used here, however, is not limited specifically, and its examples include polycarbonate).

Siteplease part 13 is the element that connects to the tail part to part 12 of the rack and is used to mount the bearing pin 11 directly on the bottom surface 41B of the frame 41 of the rear lights. In particular, siteplease part 13 includes a ledge is the taxable portion 13A and the portion 13B of the hook.

The protruding portion 13A is part of the rack (rack can take the form of a cylindrical column or a polygonal column)having an external diameter somewhat less than the diameter of the hole 41H in the cage, formed through the frame 41 of the rear lights, and stands out from the tail part 12 hours. The protruding portion 13A enters the hole 41H in the frame and thereby fixes the supporting pin 11 in the direction in the plane of the bottom surface 41B of the frame 41 of the rear lights.

When the protruding portion 13A enters the hole 41H in the frame bottom surface 41B of the frame 41 of the rear lights, the tail portion 12 of the rack in contact with the bottom surface 41B. Therefore, preferably, the tail portion 12 of the rack and the bottom surface 41B of the frame 41 of the rear lights were in close contact with each other. For example, if the bottom surface 41B of the frame 41 of the rear lights is a flat surface, preferably, the tail portion 12 of the rack is a flat surface.

Part 13B of the hook is an element, which is formed on the end of the top of the protruding part 13A and should be geared to the edge of the hole 41H in the frame of the frame 41 of the rear lights. Part 13B of the hook, therefore, engages on the edge of the hole in the frame bottom surface 41B and thereby fixes the CHRA is hydrated pin 11 in the direction (the perpendicular direction and the like), in which the support pin 11 is increased relative to the bottom surface 41B.

The upper part of the element 14 is supported by the end of the top portion 12 of the rack, and has a cone shape (wedge-shaped), such as, for example, a circular cone (the end of the top of the upper part 14 has the shape of a hemispherical surface). Additionally, the upper part 14 is made of rosin, which reflects the light (material based on resin used here, however, is not limited specifically, and its examples include polycarbonate).

With reference to figure 3, the following describes how the light goes in the case, if the supporting pin 11, described above, supports the optical elements, for example, a light-diffusing plate 43, etc. Typically, light emitted from the led 24, passes through the lens 26 so that it goes in different directions. Therefore, there is a light that goes to the support pin 11.

If the supporting pin 11 is irradiated in such a light, the shadow, based on the reference pin 11, with high probability is dropped on the bottom surface 41B of the frame 41 of the rear lights. As shown in figure 3, however, if part of the 12 hours of the support pin 11 is made of a material that passes light through itself, such as a transparent resin and the like, a large part of the light transmitted to the support W is the IFU 11, passed through part of 12 hours. Thus, the shadow of the support pin 11 is discarded is less likely.

In addition, part of the light emitted from the led 24, passes through the lens 26 so that it reaches a light-diffusing plate 43. The light that has reached the light-diffusing plate 43, and then is dissipated throughout the internal part of the light-diffusing plate 43 and can go to the upper part 14 of the support pin 11, which is in tight contact with the light-diffusing plate 43. The upper portion 14, however, is made from a material that reflects light, for example, rosin, etc. Light in the light-diffusing plate 43, therefore, is reflected from the upper part 14, and thus is not allowed its passage through the upper part 14 on the support pin 11. The light in the light-diffusing plate 43 is not absorbed through the upper part 14, as described above, and thus is not allowed phenomenon, in which at the upper part 14 (namely, at the top end of the support pin 11) becomes darker environment, namely, the environment except for the upper part 14.

In the above, in the light (the light from the back light, which passes through the optical elements 43-45, which includes a light-diffusing plate 43 and so on, there is an uneven amount of light is and, due to the drop shadow due to the presence of the support pin 11 and due to the dark part, formed on the basis of the upper part 14 of the support pin 11. Thus, the provision module 49 backlight, which uses light from the led 24, the support pin 11, described above, makes it unlikely that there has been uneven amount of light emitted from the module 49 backlight (i.e. we can say that the support pin 11 is the element that is used with benefit in module 49 backlight).

Incidentally, if, as shown in the top view in figure 4, a set of LEDs 24 is located in the rows, and the support pin 11 is placed between adjacent LEDs 24, the supporting pin 11 must be oriented in a preferred orientation. More specifically, it is preferable that, as shown in the enlarged view on figa, the side surface (flat surface, etc.) 12S portion 12 of the rack along the direction of the axis of the pin support pin 11 was orthogonal to the direction in which are placed adjacent LEDs 24 are placed between the supporting pin 11 (namely, the direction of Y-axis).

The following describes the reason for this is based on a comparison between the location of the anchor pin 11 shown in figa, and the location of the anchor pin 11 as compared the sustained fashion of example, shown in figv. Figv shows the state in which the side surface 12S of 12 hours, which is a rectangular stand, is located so that it is inclined at an angle of 45° relative to the direction in which are placed adjacent LEDs 24 are placed between the supporting pin 11.

As shown in both drawings, when the light (see arrows indicated by dotted lines with alternate long and short dash) comes from LEDs 24 along the direction in which are placed adjacent LEDs 24 are placed between the supporting pin 11, if part of the 12 hours of the support pin 11 is located as shown in figv, with most of the incident light passed through the portion 12 of the rack, a portion of the light reflected by the side surface 12S so that it goes in the direction crossing the direction along the axis Y. the Light, therefore, is in different directions relative to the pivot pin 11 as the center (reference point) (see arrows indicated by dotted lines). In this case, there is a strong likelihood that the supporting pin 11 is visually from the environment with the exception of the support pin 11, so that an uneven amount of light from the backlight.

On the other hand, if part of 12 hours is pornoho pin 11 is as shown in figa when the light goes along the direction in which are placed adjacent LEDs 24 are placed between the supporting pin 11 (for example, the direction along the Y axis), in this case, similarly to the case shown in figv, a large part of the incident light passed through the portion 12 of the rack, a portion of the light reflected by the side surface 12S so that it goes along the direction of the Y-axis (the fact that the side surface 12S reflects the light coming from the led 24 so as to return the light in the led 24; see the arrows, indicated by dotted lines). In this case, it is likely that the amount of light in different directions relative to the pivot pin 11 as the center, decreases. As a result, are not allowed visual protrusion of the support pin 11 of the environment with the exception of the support pin 11, so it is unlikely that there is an uneven amount of light from the backlight.

The bottom line is that if part of the 12 hours of the support pin 11 includes a side surface 12S along the direction of the axis of the pin, the regulation of the position of the side surface 12S, which is a flat surface, and the like, gives the possibility of reflection of light from the led 24 so that it goes in the desired direction, and thereby, it is possible to prevent visual vystupanastuping pin 11 when viewed from the outside.

Other embodiments of the

The present invention is not limited to the above embodiment, and various modifications can be made therein without departure from the essence of the present invention.

For example, in the above embodiment, the portion 12 of the rack is a rectangular bar, but limit it. For example, part of the 12 hours may be triangular stand or be in the form of a rack having a pentagonal or more polygonal bottom surface. In addition, part of 12 hours may have a cone shape (the shape of a pyramid/the shape of a circular cone or the shape of a truncated cone (the shape of a truncated pyramid/the shape of a truncated circular cone). The bottom line is that you want only that part of the 12 hours was a stand that can support the upper part 14 and is made of a material that passes light through itself.

In addition, the shape of the upper part 14 is also not limited to a cone shape, for example, a circular cone (pyramid shape/form of a circular cone, and may be the shape of a truncated cone (the shape of a truncated pyramid/the shape of a truncated circular cone or the shape of the rack. The bottom line is that you want only that region of the support pin 11, in which it is in contact with the optical elements such as light-diffusing plate 43 and so on, was how can the less. The reason for this is that when the minimum region, the area of optical elements, in which the support pin 11 is reflected, also becomes small, so that it is unlikely that there is an uneven amount of light emitted through the optical elements.

Part 12 of the rack and the upper part 14 of the support pin 11 can be formed narashima by two-color molding (moulding in two stages), or alternatively, the portion 12 of the rack and the upper part 14 as individual nodes can be arranged in one of the supporting pin 11. The point is that the method of manufacture of the support pin 11 can be selected depending on various goals, such as reducing cost of production, simplification of the manufacturing process, etc.

In addition, the upper portion 14 may be formed from a paint. That is, the portion of the support pin 11, which extends beyond the bottom surface 41B of the frame 41 backlight, can mainly be composed of parts 12 hours from the end of the top, covered with light reflecting paint. Also in this case, light passing in different directions through the light diffusing plate 43, is reflected from the paint, which covered the end of the top portion 12 of the rack, and, accordingly, are not allowed his admission to the part 12 of the rack and, accordingly, the flow in the bearing pin 11. The light in the light is rasseivaya plate 43, therefore, not absorbed in the bearing pin 11, and thus is not allowed phenomenon, in which at the top end of the support pin 11 becomes darker environment.

In addition, as shown in Fig.6, the lens 26 can include a porous hole 26D, which is formed by forming pores in the surface 26S of the lens above the groove DH on the body (namely, the LEDs 24). In this configuration, a curved surface, separated by relatively porous holes 26D formed on the surface 26S of the lens, and compared to light passing through a lens surface having a porous hole, the light passing through the lens surface 26S made thus does not converge in one spot in the form of light with relatively high intensity.

I.e. compared to the curved surface of the lens surface without porous holes, curved surface of the surface 26S of the lens surrounding the porous hole 26D has a high curvature and thereby diffuses light from the led 24 without his toe in the immediate upper vicinity of the porous holes 26D (lens 24, therefore, may be referred to as a light-diffusing lens). This makes it likely that a relatively large amount of light reaches the reference pin 11 (even if the surface of the b-26S of the lens does not have a porous holes, light can dissipate with the use of curvature of the curved surface of the groove DH on the body). Thus, the above reference pin 11, which suppresses the occurrence of the uneven amount of light is used efficiently.

Incidentally, the supporting pin 11 performs the function of supporting the optical elements 43-45, which includes a light-diffusing plate 43. The support pin 11, however, may be formed so that it is continuous with the functional element having the intended use, excellent support optical elements 43-45. For example, if instead of the led 24 fluorescent tube is used as the light source module 49 backlight, as shown in Fig.7, the latch 16 lamps for fluorescent tube clamp can be mounted on the side surface 12S of the support pin 11.

More specifically, the latch 16 lamp includes a tube 16T and part 16C of the stopper formed on the end of the top tube 16T.

Pipe 16T is an element in the form of a lever that protrudes from the side surface 12S of 12 hours and goes to the top 14. 7, the nozzle 16T acts from each of the two opposite side surfaces 12S. However, the limitations of it.

Part 16C of the stopper element is placed on the end of the ve is husky each of the nozzles 16T and clamps the side surface of the fluorescent tube, having starinavity form (the form of cylindrical posts etc). To hold a fluorescent tube having the form of cylindrical posts, etc., part 16C of the stopper is in the form of a tube in the form of cylindrical posts having a notch ST, formed on the side surface. To clamp the fluorescent tube, the portion 16C of the retainer has an inner diameter somewhat greater than the external diameter of the fluorescent tube.

Part 16C of the stopper includes an overhanging part of the AP-AP constituting the edges of the notches ST. The overhanging part of the AP-AP go so that they are additionally separated from each other with increasing distance from the center of the inner diameter portion 16C of the stopper. The width of the notches ST (separation between the overhanging parts of the AP-AP), therefore, further increases with increasing distance from the center of the inner diameter portion 16C of the lock.

The overhanging part of the AP-AP, described above, are made of resin and thus have the force of elasticity. When the fluorescent tube is combined with the notch ST and pressed against her, due to the elasticity of the overhanging part of the AP-AP are separated from each other. As a result, the fluorescent tube is easily included in the portion 16C of the lock.

In addition, after the fluorescent tube is part 16C of the latch, due to the elasticity of the overhanging part of the AP-AP, finding what iesa in this state, in which the width of the notches ST increased back to its original state (normal state in which the fluorescent tube is not held between them). The overhanging part of the AP-AP, therefore, are approaching each other, and thereby the fluorescent tube is held by a part 16C of the stopper. As a result, the fluorescent tube is stably clamped without unintentional bias and downs with part 16C of the lock.

In the above case, when the reference pin 11 is formed narashima with lock 16 lamp, clip lamp, used simply to clamp fluorescent tube is no longer required, and thus the number of components of the module 49 backlight is reduced. As a result, the manufacturing module 49 backlight easier.

In addition, the functional element having a different intended use, is not limited to the element for clamping the light source, for example, fluorescent tubes and the like, and may be any element for connecting a variety of other items. For example, as shown in cross-section along Fig, rivet RT for attaching the mounting substrate 21 of the led module MJ to the bottom surface 41B of the frame 41 of the backlight can be formed narashima with a support pin 11.

Also in the case of the support pin 11, as described above, the number of components of the module 49 ass is her illumination is reduced, and thus the manufacturing module 49 backlight is simplified. In addition, the latch 16 of the lamp can be mounted on the bearing pin 11, described above, which performs the function of rivet RT. I.e. the support pin 11 can be performed with the opportunity to support the optical elements, to hold the fluorescent tube and attach the mounting substrate 21 to the frame 41 of the rear lights.

List of links

11 - the anchor pin

12 - part rack

12S - side surface of the rack

13 - shareplease part

14 - top

16 - lock lamp

RT - rivet

MJ - led module

21 - mounting substrate

24 - led (light source, a point light source, the light-emitting element)

26 - lens

41 - frame backlight

42 - reflective sheet large size

43 is a light-diffusing plate

44 - prismatic plate

45 - mikrolinzy plate

49 - backlight

59 liquid - crystal display panel (display panel)

69 - liquid crystal display device (display device)

89 - television receiving device

1. A support pin that supports the optical element, which transmits the light from the light source through itself, containing:
the upper part, which is in contact with the optical element, and part of the rack that supports the upper part, while the upper part is made of a light reflecting material, and
the rack is made of svetopropusknaya material, while
the support pin is formed so that it is continuous with the functional element having the intended use, other than the support of the optical element, with the functional element is an element for clamping the light source.

2. The support pin according to claim 1, in which the upper part is wedge-shaped.

3. The support pin according to claim 2, in which the upper part has the shape of a cone.

4. The support pin according to claim 1 or 2, in which the upper part is formed of paint.

5. The support pin according to claim 1, in which the functional element is to connect a variety of other elements.

6. Lighting device containing the reference pin according to any one of claims 1 to 5, an optical element, which is supported by the support pin, and a light source which supplies light to the optical element.

7. The lighting device according to claim 6, in which
if multiple light sources is located in series, and the support pin is placed between adjacent light sources, the side surface of the rack along the direction of the axis of the pin for the reference pin is orthogonal direction is s, in which are placed adjacent the light sources are placed between the anchor pin.

8. The lighting device according to claim 6 or 7, in which
the support pin is formed so that it is continuous with the functional element having the intended use, other than the support of the optical element, and
the functional element has an intended use, to hold the linear light source which is a light source.

9. The lighting device according to claim 6 or 7, in which
the support pin is formed so that it is continuous with the functional element having the intended use, other than the support of the optical element, and
the rack has the form of a rack comprising a flat surface along the direction of the axis of the pin to the reference pin, and
the functional element has an intended use, to connect the mounting substrate on which are mounted a light source, with the frame.

10. Display device containing the lighting device according to any one of p-9 and a display panel that receives light from the lighting device.

11. The display device of claim 10, in which the display panel is a liquid crystal display panel.

12. Television receiving device containing displaynameattribute of claim 10.



 

Same patents:

FIELD: physics.

SUBSTANCE: backlight unit (49) of a display device (69), having a liquid crystal display panel (59), equipped with a base (41), a diffusing plate (43) mounted on the base, and a light source which illuminates the diffusing plate with light. The light source has a plurality of light-emitting modules (MJ) which include a light-emitting diode (22) which serves as a light-emitting element, and a divergent lens (24) covering the light-emitting diode. The light-emitting modules are placed on a grid on the base supporting the diffusing plate. Carrier pins (26) for mounting the diffusing plate are located on points on the base. The carrier pins are placed on sections of lines linking neighbouring pairs of light-emitting modules.

EFFECT: eliminating non-uniformity of luminance.

10 cl, 14 dwg

FIELD: physics.

SUBSTANCE: backlight unit (49) of a display device (69), having a liquid crystal display panel (59), has a base (41), a diffusing plate (43) which is supported by the base, and a point light source for irradiating the diffusing plate with light. The point light source has a light-emitting diode (22) mounted on a mounting substrate (21). A plurality of light-emitting diodes covered by divergent lenses (24) are provided. Optical axes (OA) of the divergent lenses are inclined relative the diffusing plate, and the divergent lenses, having different inclinations of optical axes, are placed randomly on the base. The divergent lenses, having optical axes that are inclined in opposite directions, are paired and the pairs are arranged in a matrix.

EFFECT: reduced non-uniformity of luminance and hue.

25 cl, 12 dwg

FIELD: electricity.

SUBSTANCE: lighting device 12 comprises multiple point sources 17 of light and a base 14, where point sources of light 17 are placed, which are classified into two or more colour ranges A, B and C, in accordance with light colours. Each colour range is defined by means of a square, each side of which has length equal to 0.01 in the colour schedule of light space of the International Lighting Commission 1931.

EFFECT: reproduction of light of practically even light.

26 cl, 15 dwg

FIELD: electricity.

SUBSTANCE: lighting device includes multiple LED 16, circuit board 17S LED, chassis 14, connection component 60 and reflecting plate 21. LED 16 are installed on circuit board 17S LED. Both plates 17S and 17C LED are attached to chassis 14. Connection component 60 is electrically connects circuit boards 17S and 17C LED between each other. Reflecting plate 21 is put on surface 17A of light sources installation. In the lighting device, connection component 60 is located on surface 17B of attachment of connection component of circuit board 17S LED. Surface 17B of attachment of connection device is opposite to the surface, on which reflecting plate 21 is put.

EFFECT: increasing brightness of reflected light.

23 cl, 22 dwg

FIELD: physics.

SUBSTANCE: device has a holder (11) which attaches a mounting plate (21) to a backlight base (41) while covering at least the edge (21S) of the mounting plate (21) on the backlight base (41), said edge being situated in the direction of the short side of the mounting plate. The surface of the mounting plate covered by the holder has a non-uniform reflection area which can be in form of a connector or a terminal.

EFFECT: improved uniformity of the amount of light from the backlight unit.

21 cl, 39 dwg

FIELD: electricity.

SUBSTANCE: back light unit (49) for display device (69) equipped with LCD panel (59) contains a frame (41), dissipating plate (43) supported by the frame and point light sources supported by mounting substrates (21) provided at the frame. Point light sources contain LEDs (22) installed at mounting substrates. Mounting substrates (21) are interconnected by connectors (25) thus forming rows (26) of mounting substrates (21). Varieties of rows (26) of mounting substrates (21) are located in parallel; a row (26) of mounting substrates (21) is formed by long and short mounting substrates (21) and location of such long and short mounting substrates (21) is changed to the opposite row-by-row. Positions of connectors (25) are not levelled in a straight line in direction of rows (26) of mounting substrates (21).

EFFECT: providing uniform brightness of the dissipating plate.

23 cl, 10 dwg

FIELD: electricity.

SUBSTANCE: backlighting unit (49) for a display device (69) equipped with a liquid crystal display panel (59) comprises a base (41), a diffusing plate (43), supported by means of the base, and point sources of light, supported by means of mounting substrates (21), provided on the base. Point sources of light contain modules of light emission (MJ). Mounting substrates are arranged in the rectangular area (41a) suitable for location of mounting substrates in it and arranged on the base. Gaps at the borders between mounting substrates do not stretch in any direction along long sides and/or in direction along short sides of the rectangular area, in order to provide for the possibility to see the rectangular area from the edge to the edge.

EFFECT: achievement of homogeneity of reflection ratio.

16 cl

FIELD: physics.

SUBSTANCE: liquid crystal display device includes a first polariser, a second polariser facing the first polariser, a liquid crystal display panel provided between the first polariser and the second polariser, and a first phase plate and a second phase plate provided between the first or second polariser and the liquid crystal display panel. The display panel has a pair of substrates and a liquid crystal layer placed between the pair of substrates, which includes homogeneously aligned liquid crystal molecules. The phase plate includes a liquid crystal film placed in a position where the nematic liquid crystal is hybrid-aligned. Phase difference in the perpendicular direction of the element situated between the first and second polarisers, excluding the liquid crystal layer and the first phase plate, is 120 nm or greater.

EFFECT: reduced inversion of the gray gradation scale in a position where a colour close to black is displayed.

19 cl, 116 dwg

FIELD: physics.

SUBSTANCE: method of modulating optical radiation involves transmitting natural visible light in the wavelength range 350-850 nm at an angle of 5-75°, between the direction of the light and the perpendicular to the surface of the working optical element made from n layers of manganite A1-xBxMnO3 (where n≥1), wherein the trivalent rare-earth metal A is partially substituted with a univalent or divalent metal B with degree of substitution x. Visible light transmitted through and reflected from the working element is modulated under the effect of a control external magnetic field in which is located the working optical element, having giant visible light magnetotransmission and magnetoreflection effect.

EFFECT: wider range of methods of modulating optical radiation, simple design.

2 cl, 3 dwg

FIELD: electricity.

SUBSTANCE: lighting device 12 includes light source 17, housing 14 containing light source 17 and hole 14b for passing of light emitted by light source 17 and optical element 15a provided so that to be directed to light source 17 and close hole 14b. Optical element 15a has various coefficient of reflection lengthwise to light source 17.

EFFECT: achievement of nearly even distribution of lighting brightness without partially formed dark parts.

12 cl, 27 dwg

FIELD: physics.

SUBSTANCE: backlight unit (49) of a display device (69), having a liquid crystal display panel (59), has a base (41), a diffusing plate (43) which is supported by the base, and a point light source for irradiating the diffusing plate with light. The point light source has a light-emitting diode (22) mounted on a mounting substrate (21). A plurality of light-emitting diodes covered by divergent lenses (24) are provided. Optical axes (OA) of the divergent lenses are inclined relative the diffusing plate, and the divergent lenses, having different inclinations of optical axes, are placed randomly on the base. The divergent lenses, having optical axes that are inclined in opposite directions, are paired and the pairs are arranged in a matrix.

EFFECT: reduced non-uniformity of luminance and hue.

25 cl, 12 dwg

FIELD: electricity.

SUBSTANCE: lighting device 12 comprises multiple point sources 17 of light and a base 14, where point sources of light 17 are placed, which are classified into two or more colour ranges A, B and C, in accordance with light colours. Each colour range is defined by means of a square, each side of which has length equal to 0.01 in the colour schedule of light space of the International Lighting Commission 1931.

EFFECT: reproduction of light of practically even light.

26 cl, 15 dwg

FIELD: physics.

SUBSTANCE: invention relates to organic light-emitting diode (OLED) solid-state light sources used to make colour information screens and colour display devices with high consumer properties, as well as cheap and efficient light sources. Disclosed is an OLED, having a base in form of a transparent substrate having a transparent anode layer and a metal cathode layer with a light-emitting layer in between, which is based on a dendronised polyaryl silane of general formula (I) or (II) , where n is an integer from 5 to 1000.

EFFECT: wide range of OLEDs with high operational characteristics, particularly in the radiation range of 400-700 nm, which enables use thereof as light sources.

7 cl, 3 dwg, 6 ex

FIELD: electricity.

SUBSTANCE: back light unit (49) for display device (69) equipped with LCD panel (59) contains a frame (41), dissipating plate (43) supported by the frame and point light sources supported by mounting substrates (21) provided at the frame. Point light sources contain LEDs (22) installed at mounting substrates. Mounting substrates (21) are interconnected by connectors (25) thus forming rows (26) of mounting substrates (21). Varieties of rows (26) of mounting substrates (21) are located in parallel; a row (26) of mounting substrates (21) is formed by long and short mounting substrates (21) and location of such long and short mounting substrates (21) is changed to the opposite row-by-row. Positions of connectors (25) are not levelled in a straight line in direction of rows (26) of mounting substrates (21).

EFFECT: providing uniform brightness of the dissipating plate.

23 cl, 10 dwg

FIELD: electricity.

SUBSTANCE: backlighting unit (49) for a display device (69) equipped with a liquid crystal display panel (59) comprises a base (41), a diffusing plate (43), supported by means of the base, and point sources of light, supported by means of mounting substrates (21), provided on the base. Point sources of light contain modules of light emission (MJ). Mounting substrates are arranged in the rectangular area (41a) suitable for location of mounting substrates in it and arranged on the base. Gaps at the borders between mounting substrates do not stretch in any direction along long sides and/or in direction along short sides of the rectangular area, in order to provide for the possibility to see the rectangular area from the edge to the edge.

EFFECT: achievement of homogeneity of reflection ratio.

16 cl

FIELD: electricity.

SUBSTANCE: highlighting device 12 consists of a board 18 with installed light-emitting diodes 17 serving as a light source, chassis 14 with the installed board 18 with light-emitting diodes 17 and an opening 4b for passage of light emitted by the light-emitting diodes 17 and holder 20 that passes in at least one direction along surface of the board plate 18 and fixed to chassis 14 in order to hold the board 18 together with chassis between the holder 20 and chassis 14.

EFFECT: ensuring stable fixture for light sources without use of screws.

36 cl, 29 dwg

FIELD: physics.

SUBSTANCE: method of making a light-emitting diode lamp involving use of a bulb, a base for inserting into a socket, light-emitting diodes connected through a microcircuit to base contacts, and characterised by transfer of heat from the light-emitting diodes to a radiator, characterised by that the light-emitting diodes are placed in a heat pipe which has a base and a hollow heat carrier arm, and around and under the lamp bulb there are radiator elements, the radiator being connected the base of the heat pipe, wherein inside the heat pipe there is a heat carrier working in boiling phase and electric power is transmitted to the light-emitting diodes through an insulated tube inside the heat pipe.

EFFECT: increase in surface area of the radiator without increase in linear dimensions of the lamp.

2 cl, 2 dwg

FIELD: optics.

SUBSTANCE: universal source comprises housing, power supply unit, set of light-emitting units provided with a devices for current control, optical elements, and means for positioning. The means for positioning has three degrees of freedom and provide the light-emitting units to be positioned with respect to the diffraction unit according to the formula d(sinαi + sinβ i) = λi, where d is the pitch of the diffraction unit, αi is the angle of incidence of the beam, which is the angle between the normal to the diffraction unit and direction of the beam from i-th light emitting unit, βi is the diffraction angle, m is an integer, and λi is the wavelength of the beam from i-th light-emitting element.

EFFECT: expanded functional capabilities.

10 cl, 4 dwg

FIELD: lighting devices or systems.

SUBSTANCE: projector-headlight comprises housing with cooling ribs, transparent protecting member that overlaps the inlet port, current conductor, plates-holders with lamp and diode emitters made of IR-diodes, white and color light diodes some of which are positioned at the focuses of the flat Fresnel lenses provided in the staggered order on the transparent plastic plate mounted at the outlet port of the projector-headlight, and addition emitters interposed between the four flat Fresnel lenses and two Fresnel lenses at its edges. The additional emitters are connected to the power source independently of the remainder emitters.

EFFECT: expanded functional capabilities and enhanced reliability.

3 cl, 6 dwg

FIELD: physics.

SUBSTANCE: backlight unit (49) of a display device (69), having a liquid crystal display panel (59), equipped with a base (41), a diffusing plate (43) mounted on the base, and a light source which illuminates the diffusing plate with light. The light source has a plurality of light-emitting modules (MJ) which include a light-emitting diode (22) which serves as a light-emitting element, and a divergent lens (24) covering the light-emitting diode. The light-emitting modules are placed on a grid on the base supporting the diffusing plate. Carrier pins (26) for mounting the diffusing plate are located on points on the base. The carrier pins are placed on sections of lines linking neighbouring pairs of light-emitting modules.

EFFECT: eliminating non-uniformity of luminance.

10 cl, 14 dwg

FIELD: physics.

SUBSTANCE: backlight unit (49) of a display device (69), having a liquid crystal display panel (59), has a base (41), a diffusing plate (43) which is supported by the base, and a point light source for irradiating the diffusing plate with light. The point light source has a light-emitting diode (22) mounted on a mounting substrate (21). A plurality of light-emitting diodes covered by divergent lenses (24) are provided. Optical axes (OA) of the divergent lenses are inclined relative the diffusing plate, and the divergent lenses, having different inclinations of optical axes, are placed randomly on the base. The divergent lenses, having optical axes that are inclined in opposite directions, are paired and the pairs are arranged in a matrix.

EFFECT: reduced non-uniformity of luminance and hue.

25 cl, 12 dwg

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