Method for exciting luminophor and element of altenating current colour plasma panel

FIELD: information technology.

SUBSTANCE: method is realised by exciting the luminosphor in a display element from ultraviolet radiation via discrete surface gas discharges which are formed by dividing the overall gas-discharge interval between indicator electrodes into separate indicator areas with length of the discharge interval equal to the length of the cathode layer for chosen gas pressure.

EFFECT: high luminous efficacy, contrast and longevity of illumination of the luminophor.

9 cl, 31 dwg

 

Group of inventions relates to the indicator technique and can be used when creating a color plasma panels AC for information display systems, in particular for plasma TVs and monitors.

There is a method of charge formation in the elements of the plasma display panel of the AC surface discharge between the display electrodes (1). For the reason that impede the achievement of the desired technical result when using the known method of charge formation, is that the display elements is impossible to obtain a high luminous efficiency of the discharge in the display mode, since the discharge touches the walls of the dielectric barriers of borders of the display elements.

Well-known element of the plasma display panel of the AC surface discharge between coplanar and parallel display electrodes, each of the display electrodes is in the form of a transparent conductor, which is a narrow opaque bus with a high conductivity (2). For the reason that impede the achievement of the desired technical result when using the known method of charge formation, is that the surface discharge is generated by the display electrodes in each element of the display, does not create the conditions is to obtain a high luminous efficiency of the discharge in the display mode at a frequency (100 kHz to 200 kHz), since the efficiency of the process of discharge is reduced due to the touch of the walls of the dielectric barriers, which is the phosphor, and on the other hand, additional discharges relative to the address electrode in the display mode reduces the durability of the phosphor.

The known method of forming a discharge in the display element, with coplanar electrodes of the display, with a geometric shape in the form of T-shaped transparent conductors, which are connected with a narrow opaque tires with a high conductivity located at the boundaries of the display item (3). For the reason that impede the achievement of the desired technical result when using the known method of charge formation, is that the display elements are not optimized process discharge, which would increase the luminous efficiency of the discharge in the display mode when the frequency of the pulse voltage of the sustain discharge (100 kHz to 200 kHz).

The closest way to the same destination to the claimed method of the invention is a method of excitation of the phosphor in the item display LCD panel AC, consisting of dielectric plates - front with the display electrodes and the back - with phosphor. The plates are separated from each other by dielectric barriers with the formation of gas volume. The luminescence of the three irradiated with ultraviolet radiation from a gas discharge, which is formed in the form of a discrete surface discharges in the discharge spaces separate indicator areas, which are created by dividing coplanar and parallel electrodes display additional dielectric barriers. In each separate indicator area of the discharge is ignited between the nearest edges of the electrodes of the display with the subsequent spread of combustion discharge on the entire area of the conductors of the electrodes of the display. The conductors are insulated from the gas by a transparent dielectric, the surface of which is coated with the protective emission material (4). The disadvantage of this method is that this method of excitation of the phosphor gas discharge ultraviolet radiation, which is formed with discrete surface discharges are not optimized in terms of the physics of the formation and combustion of the gas discharge in some areas, which is divided by the total discharge gap between the electrodes of the display element of the display.

The closest device of the same purposes of the claimed device in the group of inventions in the design of the display element is a display element LCD panel AC, which contains coplanar and parallel display electrodes and located perpendicular and the address electrode. The electrodes of the display is divided into separate indicator bit parts arranged perpendicular thereto additional dielectric barriers. The total length of the display electrodes is limited by dielectric barriers. They define the boundaries of the display element relative to the adjacent display elements. Each individual indicator bit area of the scanning electrode is made of two conductors between conductors formed additional bit period, and relative to the address electrode has a bit period of addressing (4).

The lack of item display is that the design of the item display is not optimized number of individual indicator electrodes and geometrical dimensions of the dielectric barriers, as well as the total amount of surface discharges. This leads to a low luminous efficiency of the discharge and reduced service life.

The invention consists in the following.

The claimed group of inventions solves the problem of improving the operational and technical parameters of the plasma color panel AC surface discharge for information display systems. In the exercise of invention may be obtained by a single technical result consists in increasing the luminous efficiency the efficiency of the discharge, reducing the power consumption of the panel, as well as to increase the brightness and durability of the glow phosphor, increase the contrast and reliability management, in addition, the design of the display elements with a matrix of transparent dielectric simplifies the process of manufacturing plasma display panels AC.

This technical result in the exercise of invention the device object is achieved in that in the first display mode, the discharge is ignited between the nearest edges of the electrodes of the display with the subsequent spread of combustion discharge on the entire area of the conductors of the electrodes of the display. The conductors of the electrodes are isolated from the gas transparent dielectric on the surface of which is coated with the protective emissive material. Regardless of the geometric shape of the conductors of the electrodes of the display element in the display of discrete surface discharge form in a separate indicator areas, which are created by dividing the total discharge of the indicator between the coplanar electrodes of the display according to the relation: n=L/(1,1÷2,0)Lk, where n is the number of separate indicator areas: L - length of the nearest edges of the coplanar electrodes display: Lk - thickness of the cathode layer of the discharge. The height of the additional separation of dielectric the ski barriers choose from the relation: H=(0,1÷0,5)Lk, H - the height of the additional dielectric separation barrier, Lk is the thickness of the cathode layer of the discharge. The width of the additional isolating dielectric barrier determined from the relation: T=(0,1÷1,0)Lk. Additional isolating dielectric barriers in the item display feature perpendicular or slope. In those indicating the areas in which the conductors of the display electrodes are located under the dielectric barriers of borders of the display elements on the dielectric isolation of the electrodes of the display put an extra layer of transparent dielectric thickness equal to the thickness of the dielectric insulation of the electrodes of the display panel, and a bandwidth selected from the relation: t≤2Le, where t is the width of the additional layer of a transparent dielectric, Le is the mean free path of ionizing electrons. Additional isolating dielectric barriers are made of a transparent material. Protective emissive material applied on the additional isolating dielectric barriers. In the item display when inclined additional isolating dielectric barriers in relation to the nearest edge of the display electrodes between the edges of the electrodes of the display perpendicular to the edges of the display electrodes are additional isolating dielectric defence the market.

The formation of discrete surface discharges in the item display with any geometry of the electrodes of the display in which the total discharge period is divided into separate indicator areas keeping the thickness of the cathode layer of the discharge, allows to optimize the number of indicator areas, and the selected parameters additional isolating dielectric barriers and their location allow you to create the physical conditions of formation and combustion of discrete surface discharges with minimal energy loss, thereby increasing luminous efficiency.

Perform additional isolating dielectric barriers of transparent material increases the area of the transparent display item that increases the value of the brightness. Drawing on additional isolating dielectric protective barriers emission material simplifies the process of manufacturing plasma display panels. The perpendicular arrangement of the additional isolating barriers between the edges of the electrodes of the display when the inclined arrangement of these barriers on the surface of the dielectric isolation of display electrodes, and applying an additional transparent dielectric layer on the dielectric isolation of the electrodes of the display in a separate indica is ornago sites limited barrier boundary element display, allows you to generate discrete surface discharges in any geometric shape of the electrodes of the display and create the same physical conditions for the emergence and combustion discharge that extends the use of the proposed method of excitation of the phosphor for different designs of panels AC.

Specified single technical result on the device object is achieved in that the display element LCD panel AC contains coplanar and parallel display electrodes and located perpendicular to them the address electrode. The electrodes of the display with the total bit period is divided into separate indicator bit sections perpendicular to the display electrodes of the additional dielectric barriers. The total length of the display electrodes is limited by dielectric barriers. They define the boundaries of the display element relative to the adjacent display elements. Each individual indicator bit area of the scanning electrode is made of two conductors. Between conductors formed additional bit period, and relative to the address electrode is formed of bit period addressing, as it introduces an additional limitation is the length of the electrodes of the display relative dielectric barriers, regardless of the geometric shape of the element's bounds display. Forming an additional dielectric barriers is through the use of additional transparent dielectric which is applied in the form of a matrix on a transparent dielectric isolation of the electrodes of the display. Bandwidth is more transparent dielectric matrix under dielectric barriers of borders display item is selected from the relation: S≥(Sd+Le), where Sd is the width of the dielectric barrier element boundaries display, S - band width more transparent dielectric matrix Le is the mean free path of ionizing electrons. The additional thickness of the transparent dielectric selected from the formula: TD=(0,1÷0,5)Lk, where TD is the thickness of the additional transparent dielectric, Lk is the thickness of the cathode layer of the discharge. The number of dielectric barriers separating discharge gap electrodes display on a separate display areas, chosen from the relation: m=[L/(1,1÷2,0)Lk]-1, where m is the number of barriers, Lp is the length of the current gas-discharge gap Lk - thickness of the cathode layer of the discharge. The width of the dielectric barriers separating discharge gap electrodes indication selected from the relation: T=(0,1÷1,0)Lk, where T is the width of the dielectric barrier separating the gas discharge between the electrodes of the Indus is the ratification, Lk - the thickness of the cathode layer of the discharge. In the absence of dielectric barrier boundaries between adjacent display elements of the same color glow strip width additional transparent dielectric matrix corresponds to the ratio: Sc≤K, where Sc - bandwidth more transparent dielectric matrix between the display electrodes of adjacent display elements of the same color of light, K is the distance between the display electrodes of adjacent display elements of the same color of the glow. The distance between the surface of the dielectric insulation of the electrodes of the display with a protective layer of emissive material and a phosphor layer over the electrodes of the display is determined from the relation: h=(1,0÷3)Lk, where h is the distance between the surface of the dielectric insulation of the electrodes of the display with a protective layer of emissive material and a phosphor layer over the display electrodes, Lk is the thickness of the cathode layer of the category.

The address electrode is made in the form of a bus with an additional conductor located above the conductor of the scanning electrode of the display, which is formed of bit period of the address, while the address bus electrode is located under the dielectric barrier boundary element display, the geometric shape of the transparent electrodes in the form of the letter "T". The total discharge period is divided into three of the separate indicator area, and on one of the bus electrodes of the display parallel to the entered address electrode discharge, an additional conductor of the address electrode is insulated by a dielectric from the gas volume, the additional surface Explorer address electrode formed without phosphor, the gap between the conductors of the scanning electrode is closed opaque material.

The introduction of restrictions on the total length of the discharge gap can reduce the energy loss of surface discharge in a separate indicator areas formed between the dielectric barrier boundary element display and additional separating barrier, since the surface of the gas discharge does not touch the walls of the dielectric barrier of the border.

Application of additional transparent dielectric matrix on the dielectric isolation of the electrodes of the display with the specified geometric dimensions and the number of dielectric barriers in the form of strips selected in accordance with application criterion layer thickness of the cathode discharge, which allowed us to optimize the design element of the plasma display panel considering the physical processes of the gas discharge, which is formed in the form of a discrete surface discharges, and these bits provide maximum UV intensity izlucheniya excite the phosphor in the display element.

We offer you the choice of the distance between the surface of the dielectric insulation of the electrodes of the display with a protective layer of emissive material and a phosphor layer over the electrodes of the display together with the proposed design address electrode with an additional conductor on the scanning electrode of the display makes it possible to reduce the degradation of the phosphor, as it eliminates the accumulation of charges on the surface of the phosphor at the time of entering the information, when between the address electrode and the scan electrode to form a discharge, which, together with the discharge zone is the ion bombardment of the phosphor. It also increases the durability of the glow phosphor and the overall experience of the plasma panel. In addition, the location of the address bus electrode under the barriers of borders display item eliminates electrical connection between adjacent elements of the same color glow due to the absence of charges during addressing, thus the performance of the scanning electrode of the display of the parallel conductors is used to close the gap between them opaque material, which increases the contrast of the image.

For checking the conformity to each of the objects of the claimed group of inventions to the requirement of inventive step, the applicant conducted an additional search Izv the local solutions in order to identify signs, coinciding with distinctive among the selected prototypes for color plasma panel with surface discharge and control method of the claimed group of inventions.

The search results show that each of the objects of the claimed group of inventions is not necessary for the expert in the obvious way from the prior art, so as not identified technical solutions that increase luminous efficiency and longer service life was achieved by excitation of the phosphor with ultraviolet light from a gas discharge formed in the form of a discrete surface discharges when dividing the total discharge gap between the electrodes of the display on a separate display areas, the number of which is optimized through the criterion of the thickness of the cathode layer of the discharge, which is also applied when choosing the geometric dimensions additional separation barriers, as well as the proposed location of them on the surface of the dielectric isolation. The introduction of an additional layer of transparent dielectric in a separate indicator areas that are restricted to the dielectric barriers boundaries of display elements, you can create the same physical conditions of formation and combustion surface discharge all separate indicator areas when any form of conductor electrodes load indication is I. In addition, in the proposed design element display application more transparent dielectric matrix, with the proposed geometric dimensions in any form conductors of the electrodes of the display, you can simplify the manufacturing process of the panel, and the proposed choice of the distance between the surface of the dielectric insulation of the electrodes of the display with a protective layer of emissive material and a phosphor layer over the electrodes of the display together with the design of the address electrode makes it possible to optimize the durability of the phosphor in the display element at discrete surface discharges.

The proposed method of excitation of the phosphor and the item display LCD panel AC is illustrated by the following figures.

Figure 1 schematically shows a color pixel elements of the plasma display panel of the prototype and the process of surface discharge between the display electrodes during the addressing and readout.

Figure 2 schematically shows a first example of a color pixel elements of the display of a typical plasma panels AC, display elements which excite discrete surface discharges under the proposed method.

Figure 3 schematically shows a second example of a color pixel e is the display elements, when the management method of "ALIS" typical plasma panels AC, display elements which excite discrete surface discharges under the proposed method.

Figure 4 schematically shows a third example of the color pixel elements of the display of a typical plasma panels AC, display elements which excite discrete surface discharges under the proposed method.

Figure 5 schematically shows a fourth example of the color pixel elements of the display of a typical plasma panels AC, display elements which excite discrete surface discharges under the proposed method.

Figure 6 schematically shows a fifth example of the color pixel elements of the display of a typical plasma panels AC, display elements which excite discrete surface discharges under the proposed method.

7 schematically shows a sixth exemplary embodiment of the display element, in which excite discrete surface discharges under the proposed method.

On Fig schematically shows a seventh exemplary embodiment of the display element, in which excite discrete surface discharges under the proposed method.

Figure 9 schematically shows the eighth example of executing items the NTA display, which excite discrete surface discharges under the proposed method.

Figure 10 schematically shows a ninth exemplary embodiment of the display element in a typical plasma panel.

To excite the phosphor in the item display LCD panel (PP) AC prototype (figa), in which each pixel is 1 consists of horizontal colored display elements: R - red, G - green, B - blue, in which the superficial gas discharge 2 is formed in the common discharge gap "gap" between the display electrodes X and Y (figure 1). Each element of the display is limited by dielectric barriers 3, which defines the boundaries of the element display the same color of the glow, and the total discharge gap gap is divided transparent dielectric barriers 4 on a separate indicator areas 5. Coplanar and parallel to the display electrodes X and Y are formed on the face plate 6 and are insulated by the insulator 7 with protective emissive material 8, it is usually coated magnesium oxide, MgO (figb, in). Scanning the display electrode Y consists of two wires: AP and Yc. On the back plate 9, as shown in sections A-a and B-B (figb)are formed address electrodes Z and the dielectric barriers 3 boundaries of the display element, with the side walls of these barriers 3 and n is the surface of the back plate and the conductor of the address electrode is applied to the phosphor 10. For excitation of the gas discharge between the display electrodes in the display mode, the addressed element of the first display is formed by the address discharge 11 between the address electrode Z and the conductor Yc scanning of the display electrode Y, and then discharge 12 is formed between the conductors and Im Yc, as shown in figv, which goes to the surface of the gas discharge 13 between the display electrodes X and y Of figb shows that at the individual indicator plots display item category concerns walls of the dielectric barriers 3, which results in energy losses of the discharge, as it reduces the temperature of the discharge.

The first example is a color pixel 1 typical plasma flat panel display elements R, G, B (figa), where each element of the display is separated from adjacent elements display a different color glow dielectric barriers 3, which are the boundaries, and the display electrodes X and Y consist of opaque conductors with high conductivity tire XIII, Ears and transparent conductors Xp, Yp, where the display electrode Y is scanning, from which you can select or addressing of the display element, that is, on or off the illumination of the display item. In this arrangement, the display element of the gas gap "gap" between the electrodes of the display formed by the edges of the transparent what's electrodes Xp, Yp. The gas gap "gap" in the item display typical plasma display panel can be formed with different arrangement of opaque and transparent conductors (figs, figs). Each element of the display (figure 2) ultraviolet radiation of the gas discharge to excite the phosphor is formed in the form of discrete gas surface discharges in each color element display by dividing the total discharge of the indicator between the display electrodes with the length L of the nearest edges on a separate display sections with the use of the parameter Lk is the thickness of the cathode layer of the discharge. The value of this parameter corresponds to the physical conditions of the optimal mode of occurrence and combustion gas discharge with minimal energy losses. This dividing the total discharge of the indicator between the electrodes of the display, in a separate indicator areas, the length of the nearest edge of the display electrodes is equal to Lk, as shown in the item display G with length L (figa). For the formation of the addressed element gas discrete surface discharge in a separate indicator areas initially excited by the discharge 11 between the address electrode Z and the scan electrode of the display Y (figb) section a-a item display Century. After discharge addressing on surfaces is of lektroluv will be accumulated charges, which lead to the appearance of superficial gas discharge 16 between the edges of the display electrodes X, Y, then the distribution of discharge 17 on the entire surface of the dielectric insulation of the conductors of the electrodes of the display. On FIGU arrows show the spread of discharge in the display panel addressed display item. The distribution of discharge 17 occurs simultaneously in separate display areas of the display item (Figg) section B-B. the Selected height additional isolating barriers 4 given parameter Lk 5 allows to minimize the loss of ultraviolet radiation, which is shown by arrows (Figg). On Figg in section b-b shows the display element R in the diffusion stage discharge 17 on the entire surface of the dielectric 7 and the protective emissive material 8 of the display electrodes. In order to reduce energy loss at a separate indicator areas, where on the one hand they are limited by dielectric barriers 3 parcel boundaries, the conductors of the electrodes of the display relative to the edges of these barriers separated by an additional layer of transparent insulator 15 with a width t that is selected with the parameter Le run length ionizing electrons. The location of these additional layers is shown in section d-D (fige). When using these layers Arad does not touch the walls of the barriers 3, and the temperature of the gas discharge in these separate indicator areas in relation to other indicator areas are the same, which generally ensures a high efficiency of radiation of ultraviolet discrete surface discharges in the item display. To eliminate the effect on the phosphor 10 charges, which is the cause of the additional digits after addressing mode and during a display mode, which leads to the bombardment of the phosphor 10 and the process of degradation, which reduces the brightness and reduce the service life of a typical plasma display panels. These charges accumulate on the surface of the phosphor layer 10 located on the surface of the address electrode Z or dielectric isolation 14 of the electrode. Proposed implementation structure of the address electrode (Figi), which shows the pixel elements of the display in which the address electrode is made in the form of bus Z located under the dielectric barrier 3 borders, and a conductor located above the scan electrode Y. This embodiment, the address electrode limits the size of the accumulation discharges during the process of addressing and display mode, which reduces the degradation of the phosphor 10.

The second example of implementation of the proposed method of excitation of the phosphor in the display element is the position of a typical plasma panel control mode method "ALIS" is shown schematically in figure 3.

Pixel typical plasma panel 3A has a colored display elements R, G, B, in which, according to the proposed method of excitation of the phosphor, the total discharge period is divided into separate indicator areas additional barriers 4, and to eliminate the effect of the walls of the dielectric barriers of borders 3 gas surface discharge is proposed to apply layers of dielectric 15. To improve the durability of the plasma panel is invited to perform the address electrode in the form of bus Z under the insulator 3 of the boundaries of the display elements (figb).

The third example implementation (figure 4) the proposed method of excitation of the phosphor in the display element model of the plasma panel, where the pixel has a color display elements R, G, B. In the display elements of a discharge gap formed transparent electrodes display geometric shapes in the form of the letter "T", and the upper transparent portion of the conductors does not reach the edges of the dielectric barriers 3 boundaries of the display elements at a distance Le, which corresponds to the mean free path of ionizing electrons for the selected gas pressure. According to the proposed method of excitation of the phosphor gas from discrete surface discharge General discharge between the display electrodes X, Y is divided by barriers 4 on three separate in tatarnic section with the length of the edges of the electrodes of the display Lk. At a separate indicator areas of superficial gas discharges 18 arise simultaneously with the gas surface discharge 19 in the Central individual period, but end at different times, since the discharge in the Central separate indicator area extends to tire of display electrodes XIII, Ush (figa). The process of addressing and formation of discrete surface discharges shown in figb of section a-a color display element R. the Address discharge 11 is formed between the address electrode, which for example is not isolated by a dielectric, but has the phosphor layer 10, and the scan electrode Y, which leads to the accumulation of charges in all separate indicator areas of the display element R, the scanning display electrode Y, and then, in the display mode discharges, 18, 19 between the display electrodes X, Y. To reduce degradation of the phosphor and increase contrast with the above form of display electrodes is proposed to perform the address electrode Z, (figv), or type electrode Yc for forming the address discharge (high).

The fourth example of implementation of the proposed method of excitation of the phosphor in the display element of a typical plasma display panels (figure 5). The pixel has a color display elements R, G, B, the display elements of which the total discharge period : open the IAOD between the display electrodes X, Y, each of which contains n non-transparent conductors. The total discharge period of each display element is divided into separate indicator areas, which form a discrete surface discharge to excite the phosphor. To improve the efficiency of the gas discharge at a separate indicator areas relative to the edges of the barriers of boundaries of elements of the display caused additional strip of transparent insulator 15 width t.

The fifth example of the implementation of the proposed method of excitation of the phosphor in the display element of a typical plasma display panel (6). The pixel is colored deltabase the display elements R, G, B. In this example, the display elements of the display electrodes is identical (figa), but it is possible to perform display electrodes, shown in figure 3, figure 4 and figure 5. Separation of display electrodes by dielectric barriers 4 possible within tyre electrodes indication XIII, Ush, and between dielectric barriers of borders of the display element, as shown in display item G (6). To eliminate the effect of the edges of the walls of the barriers of borders 3 serves to apply a more transparent strip 15.

The sixth example of the method of excitation of the phosphor and the item display LCD panel AC pok is Zan schematically in Fig.7. In the display element of the geometric shape of each display electrode X, Y made in the form of a reflector antenna, the elements of which do not reach the edges of the dielectric barriers 3 boundaries of the display elements at a distance Le, which corresponds to the mean free path of ionizing electrons for the selected gas pressure. Discharge between the display electrodes separated by a dielectric barriers 4.

The seventh example of the method of excitation of the phosphor and display item LCD panel AC shown in Fig. Item display (figa) contains coplanar and parallel to the display electrodes X, Y, formed of an opaque conductor, and the display electrode Y consists of two conductors: one as the electrode Si, and the second electrode Yc is the scanning. Between him and the address electrode is excited by the address discharge. The address electrode is made in the form of bus Z located under the dielectric barrier 3 boundary element display, the Explorer address electrode Z is parallel to the conductor electrode Yc and above (figb). The address electrode is insulated by the insulator 14 with a protective emissive material 8, the distance h between the surface of the dielectric isolation 7, the display electrodes with a protective layer of emissive material 8 select the about considering the option Lk. Another example of the address electrode Z (pigv), where the conductor is not isolated from the gas volume. In the display element for forming discrete surface discharges there is an additional restriction of the length of the electrodes of the display relative to the edges of the dielectric barriers 3 boundaries of the display element by forming a matrix 15m in the form of additional transparent dielectric on the dielectric 7 isolation of display electrodes X, Y. the Matrix 15m also creates barriers dividing the total discharge period on a separate indicator areas. Bandwidth is more transparent dielectric matrix under dielectric barriers of borders display item selected based on the length of the Le mileage ionizing electrons and the width of the dielectric barrier boundaries of the display element, and the thickness of the dielectric matrix, taking into account the thickness of the cathode layer of the discharge Lk. Forming a matrix of 15m on the dielectric isolation of the electrodes of the display simplifies the process of manufacturing panels with discrete surface discharge display elements. On figb, figv schematically illustrates the physics of gas discharge in the addressing mode and display. In the addressing mode is excited by the discharge between 11 address conductor Z and the scan electrode Yc, then lit bit is d 12 between the electrodes and Im Yc, in the display form 13 discharge between the electrodes X and Y. the purpose of contrast enhancement is proposed to close the gap between the electrodes and Im Yc opaque material 20 (high).

On Figg shows schematically the display element, forming discrete surface discharge between the display electrodes, and the electrode AP contains a transparent conductor Yp and bus Ush, and five - electrode zone X also contains a transparent conductor XP and bus XIII. The use of a matrix of a transparent dielectric with the proposed geometric sizes in a typical plasma panel AC with geometry shape of the display electrodes in the form of the letter "T" can significantly simplify the manufacturing process by reducing the accuracy of alignment of the location of the electrodes of the display relative dielectric barriers of borders of the display elements and to introduce additional electrode for forming the address discharge during the execution of the address electrode in the form of bus Z under the barrier 3 boundaries of the display element and the conductor Z above the scanning electrode Yc (Figg, figs).

The ability to perform more inclined separating dielectric barriers in the item display for the excitation of discrete surface discharges under the proposed method (figure 9). The display electrodes X, Y are made of tyres XIII, Ush, United with transparent conductors XP, Yp in the form of parallelograms, with the edges of the parallelograms from the edge of the dielectric barriers of boundaries of elements are given the length Le mileage ionizing electrons for the selected gas pressure or gas mixture. Figure 10 shows the display elements 21, 22 with the display electrodes X, Y, as in a typical plasma panels, but with a separate indicator areas, which are obtained using the matrix 15m from a transparent dielectric. In a plasma panel, the address electrode is made in the item display in the conductor of Z, which is parallel to the electrode Y and is connected to the bus Z, which is located under the barrier. Known size of the values of the parameters Lk, Le (5), in their application in plasma panels, is in reality less as the pressure of the gas or mixture of gases more. At this time, in the elements of the display produced plasma panels typical gap between the edges of the electrodes of the display is in the range 0,05÷0,15 mm. Fact increase the efficiency of the gas surface discharge when an item in a display discharge period was divided into two sections along the element's display was tested in experimental plasma panel with three electrodes display information capacity of 853×480, when the step of display elements of 1.05 mm, where azrad alternately lit in the display mode. Compared with a conventional plasma luminous efficiency increased by 20%.

Additional fact increase the effectiveness of the proposed method the excitation discharge is necessary to eliminate touch of discharge of the walls of the dielectric barriers of borders, which is fixed in a plasma panels of the company "Pioneer", which led to the increase in luminous efficiency by 30%.

Thus, the above data confirm that the implementation of the claimed group of inventions using the following cumulative conditions:

the tool embodying the claimed group of inventions in its implementation, is intended for use in display systems video information containing plasma color panel AC surface discharge display element, in particular monitors and TVs;

- for the claimed group of inventions in the form as it is described in the independent clauses the following claims, confirmed the possibility of its implementation using the above in the application or known before the priority date tools and methods;

the tool embodying the claimed group of inventions in its implementation, is able to achieve perceived by the applicant of the technical result.

Sources of information

1. Paten the US 6100641, CL G09G 3/10 from 08.08.2000,

2. Patent US 6295040, CL G09G 3/28 from 25.09.2001,

3. Patent US 6492770, CL 01J 17/49 from 10.12.2002,

4. Patent RU 2209471, CL C2 from 14.08.2001,

5. Appelhof and other "Physical phenomena in gas-discharge plasma", p.120, M.: "Nauka", 1987

1. The method of excitation of the phosphor in the item display LCD panel AC, consisting of the front plate with coplanar parallel display electrodes and the back plate with the phosphor and dielectric barriers that define the boundaries of the display elements and volumes of gas are formed in the display element, which consists in the irradiation of the luminescent material by ultraviolet radiation from the gas discharge in each separate indicator area, in the display mode, first, the discharge is ignited between the nearest edges of the electrodes of the display with the subsequent spread of combustion discharge on the entire area of the conductors of the display electrodes, the conductors are isolated from the gas volume in the gas discharge between the transparent dielectric on the surface of which is coated with the protective emission material, characterized in that the discrete surface discharge form in a separate indicator areas that create by dividing the total discharge indicator between coplanar electrodes display additional the different dielectric barriers according to the relation: n=L/(1,1÷2,0)Lk, where n is the number of separate indicator areas, L - length of the nearest edges of the coplanar electrodes of the display, Lk is the thickness of the cathode layer of the discharge, the height of the additional isolating dielectric barriers choose from the relation: H=(0,1÷0,5)Lk, where H is the height of the additional dielectric separation barrier, Lk is the thickness of the cathode layer of the discharge, the width of the additional isolating dielectric barrier determined from the relation: T=(0,1÷1,0)Lk, with additional isolating dielectric barriers in the item display in relation to the nearest edge of the display electrodes forming a discharge gap indicator of the site, have a perpendicular or with tilt, and a separate indicator areas in which the conductors of the display electrodes are located under the dielectric barriers of borders of the display element relative to the edges of these barriers, the dielectric insulation of the electrodes of the display put additional transparent dielectric thickness equal to the thickness of the dielectric insulation of the electrodes of the display panel, and a bandwidth selected from the relation: t≤2Le, where t is the width of the additional layer of a transparent dielectric, Le is the mean free path of ionizing electrons.

2. The method of excitation of the phosphor according to claim 1, characterized in that the additional separating the dielectric barriers are made of a transparent material.

3. The method of excitation of the phosphor according to claim 1, characterized in that the display element when inclined additional isolating dielectric barriers in relation to the nearest edge of the display electrodes between the edges of electrodes display additional isolating dielectric barriers include perpendicular to the edges of the electrodes of the display.

4. Item display LCD panel AC containing coplanar and parallel display electrodes and located perpendicular to them the address electrode, while the total length of the display electrodes is limited by dielectric barriers, which defined the boundaries of the display element relative to the adjacent display elements, and each individual indicator bit area of the scanning electrode is made of two conductors between conductors formed additional bit period, and relative to the address electrode of the bit period addressing, characterized in that there is an additional restriction of the length of the electrodes of the display relative dielectric barriers regardless of the geometric shape of the boundaries of the display element and forming an additional dielectric barriers, separation of the electrodes of the display the total bit period to separate the indicator bit areas through the use of additional transparent dielectric, which is applied in the form of a matrix on a transparent dielectric isolation of the electrodes of the display, and bandwidth is more transparent dielectric matrix under dielectric barriers of borders display item is selected from the relation: S≥(Sd+Le), where Sd is the width of the dielectric barrier element boundaries display, S - band width more transparent dielectric matrix Le is the mean free path of ionizing electrons, and the additional thickness of the transparent dielectric selected from the formula: TD=(0,1÷0,5)Lk, where TD is the thickness of the additional transparent dielectric, Lk is the thickness of the cathode layer of the discharge, the number of dielectric barriers separating the discharge gap electrodes display on a separate display areas is selected from the relation: m=[L/(1,1÷2,0)Lk]-1, where m is the number of barriers, Lp is the length of the current gas-discharge gap Lk - thickness of the cathode layer of the discharge, and the width of dielectric barriers separating the discharge gap electrodes indication selected from the relation: T=(0,1÷1,0)Lk, where T is the width of the dielectric barrier separating the gas discharge between the electrodes of the display, Lk is the thickness of the cathode layer of the discharge, and in the absence of dielectric barrier boundaries between adjacent the display elements of the same color luminescence band width additionally what about the transparent dielectric matrix corresponds to the ratio: Sc≤K, where Sc - bandwidth more transparent dielectric matrix between the display electrodes of adjacent display elements of the same color of the glow, the distance between the display electrodes of adjacent display elements of the same color of light, and the distance between the surface of the dielectric insulation of the electrodes of the display with a protective layer of emissive material and a phosphor layer over the electrodes of the display is determined from the relation: h=(1,0÷3)Lk, where h is the distance between the surface of the dielectric insulation of the electrodes of the display with a protective layer of emissive material and a phosphor layer over the display electrodes, Lk is the thickness of the cathode layer of the category.

5. The display element according to claim 4, wherein the address electrode is made in the form of a bus with an additional conductor located above the conductor of the scanning electrode of the display, which is formed of bit period of the address, while the address bus electrode is located under the dielectric barrier boundary element display.

6. The display element according to claim 4, characterized in that the geometric shape of the transparent electrodes in the form of the letter "T" General discharge period is divided into three separate indicator area and located parallel to the bus electrodes of the display electrode, an address discharge.

7. Element display of the deposits according to claim 4, characterized in that the gap between the conductors of the scanning electrode is closed opaque material.

8. The display element according to claim 5 or 6, characterized in that the additional conductor of the address electrode is insulated by a dielectric from the gas.

9. The display element according to claim 5 or 6, characterized in that the additional surface Explorer address electrode formed without phosphor.



 

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1 cl, 3 dwg

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1 cl, 1 dwg

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4 cl, 2 dwg

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1 tbl

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16 cl, 22 dwg

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4 cl, 3 dwg

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2 cl, 2 dwg

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4 cl, 1 dwg

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3 dwg, 1 tbl

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5 cl, 33 dwg

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EFFECT: enhanced operating reliability of panel as a whole.

20 cl, 17 dwg

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