TW451240B - Improvement to matrix-type plasma panels - Google Patents

Abstract

The present invention relates to a matrix-type colour plasma panel comprising a first tile or front tile carrying a first array of electrodes (Y'1, Y'2) and a second tile or rear tile carrying a second array of electrodes, the first and second tiles being joined together to form a matrix of cells which are defined by the intersection between an electrode of the first array and an electrode of the second array, each cell having a discharge region with an aperture (Ep1, Ep2, etc.) on the colour side. According to the invention, each electrode of the first array consists of at least one element (Y'1, Y'2) covering the associated discharge regions, the element being made of a transparent conductive material and connected to a metal bus (B, B').

Description

451240 V. Description of the invention (1) The present invention relates to a plasma panel, especially a matrix-type color plasma panel. Plasma panels are hereinafter referred to as PDPs, which are flat screen image display screens that operate on the principle of gas discharge. In the case of a matrix type PDP, there are two intersections and electric habitats on different substrates, > used to delimit and initiate discharge. Therefore, as shown in Figure 1, the matrix PDP includes two substrates or porcelain slabs 2, 3 ', one of which is a front porcelain monument 2, that is, a brick on the viewer's side, and the other is a rear tile 3, which is located at the viewing The opposite. The first or former monument 2 has a first array electrode, which is generally called a "column electrode". The figure shows only three electrodes γι, γ2, Y3. To allow AC operation, the column electrodes Y1 to Y3 are covered with a layer of 5 dielectric material. The second ceramic monument or rear tile 3 has a first array electrode, which is generally called a "row electrode". Only five electrodes and even X5 are shown in the figure. A porcelain monument 2, 3 is made of the same material. It is usually glass. These porcelain monuments 2, 3 are 'together' so that the array of column electrodes and row electrodes are orthogonal to each other. The rows of electrodes Π to X5 on the rear porcelain tablet 3 are also covered with a layer of 6 dielectric material. This layer has 6 books, and the cover layer forms a strip of can material '8, $, " for the distance between the green and two tiles, along the crosstalk, red, and color. The strips 7, 8, 9 are arranged so as to be parallel to the row electrodes XI above them, separated by a dielectric layer 6. In addition, the rear tile 3 includes barrier ribs 11 'f strips 7, 8, 9 in parallel therebetween. The height of these barriers is equivalent to that the columns separate the points, thus preventing the points 与 from being formed by combining the front and back monuments 2, 3 to produce a matrix of cells C1 to Cn. Electricity, the cell is made up of column electrodes? !! To ”and the row electrode are defined by the intersection: the battery includes a discharge area, and its paragraph is approximately equivalent to the working area formed by the surface of the intersection electrode. For each battery, the gas

Page 5 451240 V. Description of the invention (2) The internal discharge and row electrodes are obtained by using the electrodes XI to X5 for discharge in the matrix columns and row power. High-conductance and defined point currents are used. Therefore, the field of view is good, and it is possible to separate the above-mentioned junction discharge width with the junction discharge time within 51 t. The above-mentioned generated charges are accumulated in the AC-type PDP and s' accumulated in the column-facing dielectric layers 5, 6. In the specific example shown in the figure, is the phosphor strip in the back tile 3? , 8, 9 are made later; etc., EP1 is different from P.n, which is approximately aligned with the surface of the row. The function of these vias is to reduce the voltage obtained to the electrodes. In the PDP, the address voltage and the sustain voltage are applied between the column electrode arrays. In this case, the applied voltage is high, and electrical electrode arrays are required, which are deposited on both sides and concentrated on the light emission at the intersection of the two electrodes. 'These arrays must have a sustained discharge.' The electrode must be thin so as to be fully conductive so that the standing current flows without damage. The electrode is made of an opaque metallic material with the resulting discharge current. In order to pass through the maximum amount of diffracted light, the front surface must be turned to the minimum to increase the point voltage of the battery, and it must be at the electrical ground. ^ * The purpose of 'can be to provide the improved disadvantages of the matrix type plasma panel, the first electrode array 2 standard; ::: the drop-type color electric panel' includes between the electrode defined by the intersection, and the electrode of the second array It is characterized by the first array pressure •, there are through-holes on the colored side, and its discharge voltage domain. Yuan Zhu r contains at least one element, and the related components are made of transparent conductive material and connected to the metal sink.

4 51 2 4 0 V. Description of the invention (3) Streaming. According to a specific example, the transparent conductive material is selected from indium tin oxide (I T0) and tin hafnium (Sn02). In addition, the components covering the discharge area include electrodes, which have a width similar to the emission area, or the components covering the discharge area may include pads related to the discharge area, and the size of the cymbal can be connected to the metal bus bar. The width of the metal busbar can be extremely small, and its shape should be as small as possible to cover the light-emitting area. Further features and advantages of the present invention will be apparent from reading the specific examples of the present invention, and will be described with reference to the accompanying drawings. The drawings are as follows: FIG. 1 is a schematic perspective view of the matrix plasma panel of the prior art technique as described above. FIG. 2 is a schematic top view of the matrix plasma panel using the first specific example of the present invention. A schematic perspective view of another specific example of the matrix-type color plasma panel to which the present invention can be applied; FIG. 4 is a schematic top plan view of the first specific example of the present invention using the structure of FIG. 3; FIG. 5 is a type shown in FIG. The electric propeller panel of the invention makes a simple top plan view of another specific example of the present invention. To simplify the description of the drawings, the same elements are given the same reference signs. First, referring to Fig. 2, a first specific example of the present invention will be described. Figure 2 refers to the structure of a matrix color plasma panel. For example, as shown in Figure 1, the phosphor deposition on the panel is in the form of strips 7, 8, and 9, parallel to the row electrodes, and through holes are provided in each strip. Epl, Ep2, Ep3 are all aligned. In this case, use three adjacent

Page 7. 4 512 40 V. Description of the invention (4) The holes Ερί, Ερ2, Ερ3 are located near the same row of electrodes γ * 1, but within three adjacent glass bars 7, 8, 9 to form three colors Pixel p. As shown in Figure 2, the through holes Ερί, Ερ2, Ερ3 of the same pixel P are separated by a distance of px, which is equivalent to separating two column electrodes (Υ '1, Υ' 2) by a third of the interval Py β. As shown in FIG. 2 'According to the present invention, the column electrodes γ'ι γ' 2 are deposited on the top surfaces of the through holes Ερί, Ερ2, Ep3 'are formed of a strip of transparent conductive material, and indium tin oxide (ΙΤ0) can be selected. And tin oxide (Sn02). In this case, as shown in Fig. 2 ', the width is larger than the through holes Epl, Ep2, Ep3, and covers most of the light-emitting area. For example, 'with an interval Py of about 9 0 0, in terms of electrodes, Y' 1, Y '2 are about 300 Å in width. As shown in FIG. 2, 'each column electrode γ', γ'2 is related to a conductive rattan bar B, B 'made of a metallic conductive material. The typical width of this bus in this case is 60- 1 00 β in. In addition, "Fig. 2" shows a black band 4 between each of the 20 poles γ '1, γ, 2. These black bands form part of an array of so-called "black matrices" whose purpose is to improve contrast. Another matrix color plasma panel to which the present invention can be applied is described with reference to FIG. 3. In contrast to FIG. 1, FIG. 3 shows the row electrodes XI to X5 on the rear tile 3 and covers the dielectric layer 6, the latter itself. The phosphorous regions covering the scale regions B1, B2, and B3 ′ in the form of strips are arranged approximately parallel to the row electrodes XI to χ5. The rear tile 3 contains barriers 11 'to distinguish the phosphorous. As shown in the specific example in Figure 1, the phosphorous regions 31, 32, 33 have through holes £ 1, £ 02, £ 3, and the pixel 1 has at least two adjacent through holes located in the adjacent phosphorous region B1, The electrodes of the same row of Β2 and Β3. In the illustrated example, the 'pixel P is a three-color pixel, so it has three through holes and is circular. Anyone skilled in this way knows that pixels can have different numbers of through holes, and

4 Si 24〇 5. Description of the invention (5) Other shapes. The specific example shown in FIG. 3 is about a PDP with a so-called staggered structure, which is changed to two adjacent through holes Ep1 and Ep2 to form a part of the same pixel P and is located in the adjacent phosphorous regions Bl and B2. XI and X2 are separated by the interval Px, and two adjacent through holes Ep1, Ep2 are separated by a distance L, which is larger than the interval Px. In the figure, the through holes Ep1, Ep2, Ep3 of the same pixel P are arranged in a triangle. This special structure can increase the required thickness H0 when the through-holes between the two porcelain monuments are separated by approximately the interval Px. In this way, the brightness efficiency of the panel can be improved without causing the degradation of contrast β. With this structure, as shown in Figure 4, it can be used for column electrode elements made of transparent conductive materials such as ϊΤ0. Y " la, Y " lb, Y " 2a, Y " 2b. The width j of these elements covers most of the light-emitting regions Z1 of the through holes Ep1, Ep2, and Ep3. According to the present invention and as shown in FIG. 4 * Each column of electrodes γ " ι, γ " 2 includes two linear elements Y " U and Y " lb or Y " 2a and Y " 2b., And is connected between the elements: ^ Wire transfer One of the electrode elements Y " la or Y " 2b in the row B, B '"covers the through holes Ep3 and Epl in the red liner strip R and the blue phosphor strip B, while the other components ^ or ¥ " 2 Covers the through-holes in the green scale G. For example, when the interval is 900 // ω, the 'busbar B, B' width is 60 to 100 microns, is made of highly conductive, and is made of a metallic material as The transparent conductive material, Y " lb, Y " 2a, Y " 2b, has a width 1 of about 300 to m. Fig. 5 shows another specific example of the present invention. The main hemp is applied to the sub-matrix shown in Fig. 3. Structure of a color PDP. In this case, each column _,., | Column electrode X »contains IT0

The gasket or point Pa is made of a transparent material. This gasket is substantially the light-emitting area of U Ερ2, Ερ3, and is connected to the through holes 1 ^ 1, β Β, of the metallic material. Bamboo conductive bus

Page 9 d5i 2 4 0 5. Description of the invention (6) As shown in the fifth circle, the bus bar B has a sine wave shape, which can shield the light-emitting area as little as possible. When the through holes Epl, Ep2, etc. have a circular shape, the entire piece or dot has a circular shape, which is approximately equivalent to the shape of the light emitting area. Obviously, there are other shapes, depending on the shape of the through holes Epl, Ep2, Ep3. Using shims or dots, Pa can minimize ITO access to adjacent vias. The bus bars B and B can also use other shapes such as ore teeth or the like to make the bus bars b1 and B2 pass between the through holes to minimize the shielding area. A column electrode element made of a transparent conductive material is used. Therefore, the entire light emitting area, especially the through hole, has the following advantages

The clear surface can significantly improve the brightness and brightness efficiency of the most intensive people, leading the necessary voltage of the battery at the front point. In addition, it is also "significantly less critical" and thus the panel is easier to manufacture. Back positions

ύ Βί 2 4 0 Brief description of the diagram The first diagram has been described above, and is a schematic perspective view of the matrix plasma panel of the previous case technique. The second diagram is a schematic top view of the matrix plasma panel using the first specific example of the present invention. Figure 3 is a schematic perspective view of another specific example of a matrix-type color plasma panel to which the present invention can be applied; Figure 4 is a schematic top plan view of a first specific example of the present invention using the structure of Figure 3; A schematic top plan view of another specific example of the present invention used in the plasma panel of the type shown in FIG. 3 is shown.

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Claims (1)

4 Si 24 0 VI. Application for patent scope 1. A matrix type color plasma panel 'includes a first array electrode (Y' 1, YMla, Y " lb, Y '2, Y " 2a, Y " 2b) The first tile or front porcelain tablet (2), and the second tile or rear tile (3) with a second array electrode, the first and second assets are combined to form a battery and battery matrix. The electrodes of the array and the electrodes of the second array define 'each battery * has a discharge area (Zi)' with through holes (Epl, Ep2, etc.) on the colored side, characterized in that the electrodes of the first array include at least one element (Ya '1, ¥ " 1 &, ¥ ”11), ¥ 2,7,, 23, ¥ " 213), covering the relevant discharge. Areas' components are made of transparent conductive material and connected to Metal busbars (B 1, · B2). 2. For example, the plasma panel of the first patent application scope, where the transparent conductive material is selected from indium tin oxide (ITQ) and tin oxide (Sn〇2). 3. As for the plasma panel of item 1 or 2 of the patent application scope, in which the element covering the discharge area is composed of electrodes * whose width is equal to the light emitting area 4. If the plasma panel of item 1 or 2 of the patent application scope, the components covering the discharge area are composed of pads (Pa) related to each discharge area, and the size of the cymbal can be connected to the metal bus (Bl, B2). 5. For the plasma panel of item 1 of the patent application, in which the shape of the metal shadow streamline (Bl, B2) can shield the light-emitting area as little as possible. Plasma panels, in which the second party bricks are provided with lintel strips (7, 8, 9), arranged in parallel with the electrodes of the second array. Use the barrier parallel to the strip to separate. 8. For example, the plasma panel of item 7 of the scope of patent application, where the height of the barrier (11) is equivalent to the space between the two tiles. Page 12