TW567520B - Rear plate structure of plasma display panel - Google Patents

Abstract

The present invention discloses a rear plate structure of plasma display panel, in which a black dielectric layer is employed to replace the conventional white dielectric layer, and the fluorescent layer is coated only on the surface of sidewall of barrier ribs, so as to expose the surface of the black dielectric layer not covered by the barrier ribs. Thus, the environmental light will not be reflected by the dielectric layer; and, the exposed surface of the black dielectric layer can replace the black matrix of the front plate for the anti-reflection effect.

Description

567520

FIELD OF THE INVENTION The present invention relates to a plasma display panel (PDP), and more particularly to a pDp rear late structure. Relevant technical description: Plasma display (PDP for short) is a thin display. The main f-color is that it can achieve a large-size, ultra-thin-thickness screen to save a large amount of screen space. The light-emitting principle of the plasma display is similar to that of a fluorescent lamp. 注入 Inject an inert gas into a vacuum glass tank, and pressurize the inert gas to generate an electric paddle effect to emit ultraviolet rays. At this time, the ultraviolet rays are irradiated onto the surface of the glass tank wall. The above fluorescent material can excite the fluorescent material, visible light of red, green or blue. Therefore, the screen of the plasma display is composed of hundreds of thousands of units that can emit light by themselves. Each light-emitting unit includes three light bulbs of three colors: red, green, and blue (R, G, B). The combination produces different colors and then forms the daylight surface as we see it. Referring to FIG. 1, a schematic diagram of a conventional plasma display is shown. The structure of the conventional plasma display device 10 is mainly composed of an upper glass substrate 12 and a lower glass substrate η arranged in parallel, and there is a gap between the upper and lower glass substrates 12 and 14, which are filled with an inert gas ( For example: Ar, x0 to form a discharge space 16. The surface of the upper glass substrate 12 includes a plurality of lateral electrodes, and each lateral electrode includes a first sustaining electrode 18 and a second sustaining electrode. 20, and each of the first and second sustain electrodes 18 and 20 includes a transparent electrode 18m, 201 and an auxiliary power.

567520 V. Description of the invention (2) Bus electrodes 182, 203. In addition, the surface of the upper glass substrate 12 includes a dielectric layer 24 covering the lateral electrodes, and a protective layer 26 covering the dielectric layer 24. The lower glass substrate 14 is provided with a plurality of barrier ribs 28, which are arranged on the surface of the lower glass substrate 14 in parallel and at equal distances, for separating the discharge space 16 into a plurality of discharge space groups, each of which The discharge space group is defined as including a red discharge space 16 R, a green discharge space 16G, and a blue discharge space 16B. The plasma display 10 also includes a plurality of vertical electrodes 22 which are placed on the surface of the lower substrate 14 between the two barrier walls 28 and serve as data electrodes. In addition, a red fluorescent layer 29R is coated on the surface of the lower glass substrate 14 in the red discharge space 16R and the side wall of the barrier wall 28; a green fluorescent layer 29G is coated on the lower glass substrate 14 in the green discharge space 16G. The surface and the side wall of the barrier wall 28; a blue fluorescent layer 29B is coated on the surface of the lower glass substrate 14 and the side wall of the barrier wall 28 in the blue discharge space 16B. The operation mode of the plasma display 10 is to pass a driving voltage between the electrodes, and use high voltage to dissociate the inert gas in the discharge space 16 to generate ultraviolet light, and the ultraviolet light will hit the red, green, and blue fluorescent lights. The light layers 29R, 29G, and 29B emit three colors of red, blue, and green that are visible to ordinary people. After the three primary colors are mixed in different proportions, visible light is transmitted to the sight of ordinary people through the upper glass substrate j 2. However, the traditional PDP rear panel is usually made of white materials, such as: white dielectric layer and white barrier ribs, which makes it easy for the rear panel to reflect indoor light ’, thus causing the contrast and color of the PDP in a bright room environment.

567520

Color saturation is reduced, which destroys the visual effect of the PDP. Herein, in order to solve the above-mentioned problems, the present invention mainly provides a structure for a PDP rear panel, which can be applied to a bright room environment. The purpose is to have a South contrast and high color saturation. The invention still has an overview of the invention: To avoid the environment, the object of the present invention is to provide a structure of the PDP rear panel. The rear panel reflects the ambient light, thereby improving the pDp's ring ratio and color saturation in a bright room. The present invention mainly refers to a black dielectric layer instead of the conventional electric layer, and the fluorescent layer is only coated on the side wall surface of the barrier wall, and the surface of the black dielectric layer hidden by the barrier wall can be exposed. In this way, ambient light will not be reflected by the dielectric layer. The purpose of the display panel is to provide a rear panel structure for a plasma display, which mainly includes: a substrate; a black dielectric layer covering the surface of the substrate; and a plurality of electrical devices are arranged flat on the black substrate. The interior of the electrical layer; a plurality of barrier walls, parallel to the surfaces of the black dielectric layers on the two sides of the electrodes; and a fluorescent layer covering the sidewalls of the barrier walls' so that part of the surface of the black dielectric layer is exposed . ^ As mentioned earlier, the substrate is made of glass, and the black dielectric layer is made of glass doped with Mn02, Pb, B, or Si. These barriers are made of glass paste. As mentioned above, the two adjacent barrier walls are a discharge space, and the bottom of the discharge space is not covered by the fluorescent layer to expose a portion of the black dielectric layer.

567520 V. Description of the invention (4) Surface. According to the rear plate structure of the present invention, its main substrate; one row is disposed on the black and plural glory walls, so that according to the rear plate structure of the present invention, its main substrate is one; one pole is disposed in parallel to the row. The two adjacent black stripe regions are respectively formed by two parallel and perpendicular to each other; the first barrier wall and the surface are exposed to make the present invention work better, including the black dielectric on both sides of the black dielectric electrode. The color dielectric layer optical layer, covering the spirit of the black dielectric, should include the black dielectric and the black dielectric layer and the surface barrier area. The present invention also provides a layer of a plasma display. The invention of the electrical layer is covered on the surface of the substrate; the surface of the plurality of first electrical layers; the surface of the first barrier wall portion exposed to the first resistors and the like provides an electrical surface; The next walls are perpendicular to each other and separated from the second group. The first resistance of the plasma display and a fluorescent second barrier layer 'cover the inside of the surface and electrical layer of the substrate; a plurality of stripe surfaces are at a predetermined distance from the electrodes, and the partition wall is parallel to the plurality of first light layers' Covering the side walls of these strip walls makes the above-mentioned purpose, special examples of the black, and the characteristics and advantages can be more detailed drawings, detailed surface; multiple resistance compartments, flat and vertical, where the stripe-shaped barrier The color dielectric layer in the barrier-like phase barrier area is clearly easy to understand. The detailed description is as in Example 1 0632-8414TWF (n); AU91008; FELICIA.ptd Page 7 567520 V. Description of the invention (6) Fig. 4 is a top view of a preferred embodiment of the present invention, illustrating a preferred embodiment of the present invention. The PDP rear plate according to the present invention includes at least a substrate (not shown), a black dielectric layer 402, a plurality of electrodes 404, a plurality of first barrier ribs 406a, a plurality of second barrier ribs 406b, and a fluorescent layer 408. . Among them, the black dielectric layer 402 covers the surface of the substrate 400, and a plurality of electrodes 404 are arranged inside the black dielectric layer 402 in parallel with each other and at a predetermined distance from each other. In addition, a plurality of first barrier ribs 406a are provided on the surface of the black dielectric layer 40 on both sides of the electrode 404 and parallel to the electrode 404. Furthermore, a plurality of second barrier ribs 406b are disposed on the surface of the black dielectric layer 402 and are perpendicular to the first barrier ribs 406a. As for the plurality of fluorescent layers 408 covering only the side walls' of the first barrier rib 406a and the second barrier rib 406b, a part of the surface of the black dielectric layer 402 is exposed. The substrate may be made of glass or any conventional PDp backsheet material. The black dielectric layer 402 may be made of glass doped with Mn02, Pb, B, or ^ or other suitable material. One of the characteristics of the present invention is that the used dielectric layer 402 is black. It is possible to prevent the dielectric layer 40 from reflecting ambient light. The plurality of electrodes 404 are data electrodes. In addition, the first barrier rib 406a and the second barrier rib 406 may be made of glass paste. The first barrier wall 406a and the second barrier wall 406b can be integrally formed in the manufacturing process using screen printing technology to form the barrier wall as described above, that is, the first and second barrier walls 406a, 406b. There are no specific differences just for the convenience of describing the appearance of the overall barrier ribs, so they are named after the first barrier rib and the second barrier rib respectively. Two adjacent first barrier ribs 406a and two adjacent second barrier ribs 406b cross 567520 Case No. 91117748_Year Month Five. Description of the invention (7) * A discharge space is enclosed, and the present invention is characterized by fluorescent light The layer 208 only covers the side walls of the first and second barrier walls 406a, 406b, and the bottom of the discharge space is not covered by the fluorescent layer 408, so that the black dielectric layer 402: & Exposed. Since the main source of PDP light emission is the fluorescent layer 408 on the side wall of the barrier wall 406, the fluorescent layer 408 of the present invention only covers the side walls of the barrier wall 406a, 406b, so that the bottom of the discharge space is exposed without reflecting ambient light. The black dielectric layer 402 can effectively solve the problem of the conventional ρ]) ρ rear plate reflecting ambient light. Embodiment 3 Hereinafter, a preferred embodiment of the present invention will be described with reference to the top view of a preferred embodiment of the present invention with reference to FIG. 5. The PDP backplane according to the present invention includes at least: a substrate (not shown), a black dielectric layer 502, a plurality of electrodes 504, a plurality of stripe-shaped barrier regions 506 :, and a light-emitting layer 508. Among them, the black dielectric layer 502 covers the surface of the substrate 500, and the plurality of electrodes 504 are arranged inside the black dielectric layer 502 in parallel with each other and at a predetermined distance from each other. In addition, a plurality of strip-shaped barrier regions 506 are arranged in a row on the surface of the black dielectric layer 502 and are perpendicular to the electrode 504, wherein each two adjacent strip-shaped barrier regions 506 maintain a predetermined distance, Partial surface of the black dielectric layer. The stripe-shaped barrier regions 506 are formed respectively, and the barrier ribs 5G6a and the plurality of parallel second barrier ribs 5 are perpendicular to each other. As for the plurality of fluorescent layers 508, only part of the surfaces of the side walls 502 of the first barrier wall 506a and the second barrier wall 506) in the strip-shaped barrier region 506 are exposed. The Balinese substrate can be made of glass or any conventional PDP backplane material. 0632-8414TWFl (N); AU91008; felicia.ptc Page 10 567520 Case No. 91117748 V. Description of the invention (8)-Black dielectric layer 502 can be made of Mn02, pb, B or Si-doped glass or It is composed of other suitable dielectric layers. One of the characteristics of the present invention is that the used electrical layer 502 is black, so that the dielectric layer 50 can be prevented from reflecting ambient light. The plurality of electrodes 504 are data electrodes. In addition, the first barrier rib 506a and the second barrier rib "" may be made of glass paste. The first barrier wall 506a and the second barrier wall 506b can be integrally formed in the manufacturing process using screen printing technology to form the barrier wall as described above, that is, the first and second barrier walls 506a and 506b are not formed. The specific difference is only for the convenience of describing the appearance of the overall barrier ribs, and the first barrier ribs and the second barrier ribs are named here. Two adjacent first barrier walls 506a and two adjacent second barrier walls 506b in the mother barrier area 506 cross to surround a discharge space, and the present invention is characterized in that the fluorescent layer 508 covers only the first and the second barrier walls. The side walls of the second barrier walls 506a, 506b 'and the bottom of the discharge space are not covered by the fluorescent layer 508, so that a part of the surface of the black dielectric layer 502 is exposed. Since the main source of PDP light emission is the fluorescent layer 508 on the side walls of the barrier walls 506a, 506b, the fluorescent layer 508 of the present invention only covers the side walls of the barrier walls 506a, 506b, so that the bottom of the discharge space A black dielectric layer 5 2 that does not reflect ambient light is exposed. In this way, the conventional PDP backplane can effectively solve the problem of reflecting ambient light. Furthermore, the two adjacent barrier regions 506 are spaced a predetermined distance apart, so the surface of the black dielectric layer 502 between the two adjacent barrier regions 506 can be exposed, thereby using the It replaces the black matrix of the PDP front panel that is conventionally used to prevent the reflection of indoor ambient light.

0632-8414TWFl (N); AU91008; felicia.ptc page 11 567520

Advantages and Effects of the Invention 1. According to the present invention, it is possible to improve the reflection of the ambient light without the board, and improve the contrast and color saturation of p D P in the soil environment. Replace the practice Γ? ΊΓ: 'The black dielectric layer can be exposed to the black substrate of the black dielectric layer by revealing the surface of the black dielectric layer. Within this spirit and scope, various protection scopes can be regarded as the attached patent application road as above, but it is not intended to limit the artist, without departing from the modifications and retouching of the invention, so the scope of the invention is defined Whichever comes first.

0632-8414TWF (n); AU91008; FELICIA.ptd Page 12 567520

Illustration: The first picture shows the conventional plasma, the second picture shows the display according to the present invention, the third picture shows the display according to the present invention, the fourth picture shows the display according to the present invention, and the fifth picture shows the display according to the symbol description of the present: schematic diagram. A cross-sectional view of one of the preferred embodiments of the Ming Dynasty. A top view of a preferred embodiment of the invention. Top view of another preferred embodiment of the present invention Top view of another preferred embodiment of the present invention 10 ~ plasma display; 12 ~ upper glass substrate; 14,200,400,500 ~ rear plate; 1 6 ~ discharge space; 1 8 ~ first sustaining electrode; 20 ~ second sustaining electrode; 1 81 ~ transparent electrode; 182, 203 ~ auxiliary electrode; 24 ~ dielectric layer; 202, 402, 502 ~ black dielectric layer; 2 6 ~ protective layer 204, 404, 504 to data electrodes; 28, 206, 406, 506 to barrier walls; 208, 408, 508 fluorescent layers.

0632-8414TWF (n); AU91008; FELICIA.ptd Page 13

Claims (1)

567520 1. A backplane structure for a plasma display, comprising: a substrate; a black dielectric layer covering the surface of the substrate; a plurality of electrodes' arranged in parallel inside the black dielectric layer; a plurality of barrier walls arranged in parallel with the electrodes The surface of the black dielectric layer on both sides; and a fluorescent layer S covering the sidewalls of the barrier walls, so that a part of the surface of the black dielectric layer is exposed. 2. The back panel structure of a plasma display according to item 1 of the scope of the patent application, wherein the substrate is made of glass. 3. The back panel structure of the plasma display according to item 1 of the scope of the patent application, wherein the black dielectric layer is made of glass doped with Mn02, Pb, B or Si. 4 · The back panel structure of the plasma display according to item 1 of the scope of the patent application, wherein the barrier walls are made of glass paste. 5 · The back panel structure of the plasma display according to item 1 of the scope of the patent application, wherein two adjacent barrier walls are a discharge space, and the bottom of the discharge space is not covered by the fluorescent layer to expose the black dielectric. Part of the surface of the layer. 6. · A rear panel structure of a plasma display, including: a substrate; a black dielectric layer covering the surface of the substrate; a plurality of electrodes arranged in parallel inside the black dielectric layer; a plurality of first barrier ribs arranged in parallel The surface of the black dielectric layer on both sides of the electrodes; 0632-8414TWF (n); AU91008; FELICIA.ptd Page 14 567520 VI. Patent application scope: A plurality of second barrier ribs are provided on the surface of the black dielectric layer and are perpendicular to the first barrier ribs; and a plurality of fluorescent lamps The light layer covers the walls of the first barrier wall and the second barrier wall to expose a part of the surface of the black dielectric layer. ^ 7 The back panel structure of a plasma display as described in item 6 of the scope of patent application ^ 'wherein the substrate is made of glass. 8. Plasma display after plasma display as described in item 6 of the patent application: the black dielectric layer is composed of doped Mn02, Pb, d: w. & ^ The back panel structure W of the plasma display as described in item 6 of the scope of patent application, and / or the barrier walls are made of glass paste as a raw material. ▲ 1 0 · The back panel structure j of the plasma display as described in item 6 of the scope of the patent application, where two adjacent first barrier walls and two adjacent second barrier walls are formed to cross each other ::: The bottom of the discharge space It is not covered by the fluorescent layer to lead out a part of the surface of the black dielectric layer. 11 · A back panel structure for a plasma display, comprising: · a substrate; a black dielectric layer covering the surface of the substrate; a plurality of electrodes arranged in parallel inside the black dielectric layer; a plurality of strip-shaped barrier regions arranged in parallel The black dielectric = equal electrodes are perpendicular to each other, and two adjacent strip-shaped barrier regions are separated by a distance to expose a part of the surface of the black dielectric layer, and the _ regions are respectively formed by two parallel first barrier walls and Complex number g ^ [Constructed by barriers perpendicular to each other; & The tenth highest-barrier wall phase 0632-8414TW (n); AU91008; FELICIA.ptd page 15 567520 6. Scope of patent application A fluorescent layer covers the side wall of the second barrier wall in the strip-shaped barrier areas, so that the black barrier-rema ’s first barrier wall toilet arm is over eight years old. The surface of the blade is exposed 1 2. The electrical structure as described in item 11 of the patent application scope, wherein the substrate is made of glass. & Back Panel of Display 1 3 The electrical structure as described in item 11 of the patent application scope, wherein the black dielectric layer is made of doped Mη02 and & back panel of display. Glass 3, 3 or 3 丨 The structure of the electric crossing display plant as described in item 11 of Shenyan's patent scope, where the barrier walls are made of glass pulp as the raw material and the device. Rear panel 15 · The rear panel structure of a plasma display as described in item 11 of the scope of patent application, wherein two adjacent first barrier walls and two adjacent second barrier walls intersect to form a discharge space, and the bottom of the discharge space is not Covered with the fluorescent layer to expose a part of the surface of the black dielectric layer. 0632-8414TWF (n); AU91008; FELICIA.ptd Page 16