TW476093B - Plasma display panel - Google Patents

Abstract

A plasma display panel (PDP) contains a back plate, a front plate parallel to and above the back plate, a plural number of electrode pairs and a plural number of ribs. Every electrode pair contains a first electrode and a second electrode parallel along a first direction and placed underneath the front plate with equal distance apart. The plural number of ribs contain at least a first rib, a second rib and a third rib parallel along a second direction and paced above the back plate with equal distance apart. The second direction is perpendicular to the first direction. The intersection of the first rib and the second rib with the electrode pair forms a first sub pixel unit and the intersection of the second rib and the third rib with the electrode pair forms a second sub pixel unit. The first electrode area of the first sub pixel unit is greater than the first electrode area of the second sub pixel unit. When a voltage is applied on the first electrode and the second electrode, plasma-generating area of the first sub pixel unit is greater than that of the second sub pixel unit.

Description

476093 V. Description of the invention (1) The present invention provides a plasma display (Γη1 _ όϊ) ό \, 4 (A, Piasma display panel, PDP), especially a method that can use the electrode area to control p to reduce false discharge. Plasma display. The system's pixel 7G color / solitary and plasma display have gradually been applied to large-scale. The light-emitting principle of the plasma display is to rely on electrodes to drive electricity J (that is, gas to produce ultraviolet light to illuminate the phosphor 'to make the fluorescent light emit visible light. Please refer to Figure 1. Figure 1 is a conventional plasma display A schematic diagram of 10. The conventional plasma display 10 includes a casing (not shown), a rear plate 12 and a front plate 14 are mounted on the rear plate 12 in parallel. A plurality of electrodes are provided on the lower side of the front plate 12. Electrode pair 16, each electrode pair 16 includes two electrodes 18, a dielectric layer 20 is disposed under the front plate 14 and covers the electrode pair 16 for protecting the electrode pair 16, A protective layer 22 is provided on the lower side of the dielectric layer 20 'usually composed of magnesium oxide (Mg0)' to protect the dielectric layer 20 from degradation caused by the plasma. The rear plate 12 is provided with a plurality of A barrier rib 24, a plurality of data electrodes 26 are provided between the barrier ribs 24, and three different colors of phosphors, including blue, red, and green phosphors 30B, 3 0 R, 3 0 G are sequentially filled between the barrier ribs 2 4. Each two adjacent barrier ribs 2 4 are filled with ionized gas. A plurality of The top ends of the barrier ribs 24 are fixed to the lower side of the protective layer 22, and are used to isolate the two sides of the barrier ribs 24 from each other.

Page 5 476093 V. Description of Invention (2) Circulation. Each electrode 18 of the electronic display is composed of a sustain electrode 36 and a bus electrode 38. The sustaining electrode 3 6 is a wider transparent conductor, usually made of indium tin oxide (ITO), which is used to initiate and sustain the discharge. The auxiliary electrode 3 8 is a thin and opaque electrode. A metal wire, usually made of chromium-copper-chromium, is used to assist the sustain electrode 36 initiating a discharge and reduce the resistance of the two electrodes 18. As shown in FIG. 1, a pixel unit (sub pixel unU) 32B, 32R, or 32G is formed at the intersection of the two barrier ribs 24 and the electrode pair 16. The three sub-pixel units 32B, 32R, and 32G constitute a pixel unit 34. When a voltage is applied between the two sub-pixel units 32B, 32R, 32 (; two of the electrodes 18 and the data electrode 26, an electric field will be formed between the two electrodes 8 and the data electrode 26, which will cause an ionized gas discharge. Generates ultraviolet light and irradiates the phosphors 30B, 30R, or 30G to emit light. There are many factors that affect the luminous efficiency of the sub-pixel units 32b, 32R, 32G, such as the ionizing gas filled, the type of electrode, and the luminous efficiency of the phosphor. Etc. Generally, when a plasma display is set, the luminous efficiency of each sub-pixel unit 32R, 32G, 32B is expected to be similar to improve the overall plasma display.

Page 6 476093 V. Description of the invention (3) The color temperature presented makes the daylight surface more vivid. However, in terms of the existing phosphor materials, the red phosphor 30 R has the best luminous efficiency, the green phosphor 30 G is next, and the blue phosphor B is the worst. In this way, 'all other conditions being equal', the brightness of each sub-pixel of 32B, 32R, and 32G will be uneven. The color temperature of the entire plasma display cannot be improved. See Figure 2. FIG. 2 is a schematic diagram of a conventional plasma display 40. FIG. Another conventional plasma display is solving the above problems. The main difference between the plasma display 40 and the plasma display 10 is the distance between the barrier walls 44. The barrier walls 24 of the plasma display 10 are arranged equidistantly, but the barrier walls 44 of the plasma display 40 are arranged non-equidistantly. The distance between the barriers covering the blue phosphor 30B is the widest, the distance between the barriers covering the green phosphor 30 G is the second, and the distance between the barriers covering the red phosphor 3 R is the smallest. The larger the distance between the barrier walls, the more light-emitting laborers can be adjusted. In this way, the brightness of the phosphors of different colors is adjusted to make the brightness of the sub-pixel units 32B, 32R, and 32G of each color uniform, thereby achieving the purpose of increasing the color temperature. However, because the spacing of the barrier walls 44 of the plasma display 40 is different, some of the barrier walls 44 must be made smaller than the spacing between the plasma barrier 10 and the barrier wall 24 under the same resolution. The accuracy must be increased to make the barrier walls 44 with a smaller pitch. In general, the distance between the barriers covering the blue phosphor 30 B must be more than 20% larger than that of the green 30 G and the red 30 R in order to have a more obvious effect of color annihilation. Yue Jin

476093 V. Description of Invention (4) Today, this solution will increase manufacturing difficulty.

See Figure III. FIG. 3 is a top view of a conventional plasma display 10. FIG. It is also known that the plasma displays 10 and 40 may cause misfiring. In general, to make each sub-pixel unit 32B, 32R, or 32G emit light, the pressure difference provided by the electrode pair 16 plus the data electrode 26 (located under the phosphors of each color) must be greater than the fluorescence One of the light emitting voltages of the light body is a filling voltage. Taking the plasma display 10 as an example, it is now assumed that the lighting voltage of the blue phosphor 30 win light is 2000 volts, and the green glory is

The lighting voltage of 30G is 170 volts, the lighting voltage of the red phosphor 30R is 140 volts, and the voltage difference provided by the data electrode 26 (under each color phosphor) is 65 volts. To make the blue fluorescent light f 30 of the sub-pixel unit 3 2 B light, the voltage difference provided by the electrode pair 16 should be greater than 135 volts g (135 volts). However, 135 volts is quite close to the lighting voltage of 40 volts that can make red = 30R light, so if the plasma display is not accurate enough, each red and blue on the same electrode pair 16 is red, for example red The sub-pixel unit 32r may generate a false discharge at the same time as the 3232 is being lit, which may cause miscellaneous spots on the screen and affect the display quality. u The main purpose of the present invention is to improve the appearance of the situation. Reveal 1 for a color temperature with different electrode faces and reduce false discharge

Page 8 476093 V. Description of the Invention (5) Please refer to Figure 4. FIG. 4 is a schematic diagram of a plasma display 50 according to the first embodiment of the present invention. The plasma display 50 of the present invention includes a rear plate 5 2, and a front plate 54 is disposed on the upper side of the rear plate 52. The front plate 54 is a transparent plate body and is parallel to the rear plate 52. As shown in FIG. 4, the front plate 54 is provided with a plurality of electrode pairs (electróde pa 1 r) 5 6 is located on the lower side of the front plate 54, and a dielectric layer 5 8 is located on the lower side of the front plate 54 and covers The electrode pair 56 is used to provide the capacitance required for AC driving, and a protective layer 60 is located below the dielectric layer 58 to protect the dielectric layer 58 from degradation caused by the plasma's low radiation. Each electrode pair 5 6 includes a first electrode 62 and a second electrode 63, which are disposed on a lower side of the front plate 5 4 in parallel along a first direction X. The first electrode 62 and the second electrode 63 are a transparent electrode 64 made of a transparent conductor, and are usually made of indium tin oxide (ITO) to initiate a discharge. A bus electrode 66 is provided below each of the first electrode 62 and the second electrode 63. The auxiliary electrode 66 is a thinner metal wire. It is generally made of three layers of chromium-copper-chromium metal, and is used to assist the sustain electrode 64 initiating discharge and reduce the resistance of the sustain electrode 64. There are a plurality of barrier walls (Γ ib) on the rear plate 5 2. The plurality of barrier walls include a first barrier wall 68, a second barrier wall 69, a third barrier wall 70, and a fourth barrier wall 71. Are arranged parallel and equidistantly on the upper side of the rear plate 52 along a second direction γ, and the second direction γ is perpendicular to the first direction X. A plurality of data electrodes 72 are provided on the two barrier walls 476093 in parallel along the second direction γ. 5. The rear plate 5 2 between the invention description (6). The phosphors 74B, 74R, and 74G that emit blue light, red light, and green light are sequentially coated on the surface of the rear plate 52 and the barrier wall. As shown in FIG. 4, a first pixel unit (sub pixel uni t) 76B is formed at the intersection of the first barrier wall 68, the second barrier wall 69, and the electrode pair 56, and the second barrier wall 69, A second pixel unit 76R is formed at the intersection of the third barrier wall 70 and the electrode pair 56, and a third pixel unit 76G is formed at the intersection of the third barrier wall 70, the fourth barrier wall 71 and the electrode pair 56. . The first, second, and third sub-pixel units 76B, 76R, and 76G form a pixel unit (pixel uni 〇78. Sub-pixel units 76B, 76R, 76G, and pixel unit 78 refer to those contained under the dotted line shown in Figure 4). The first, second, and third sub-pixel units 76B, 76R, and 76G are coated with blue, red, and green phosphors 74B, 74R, and 74G, respectively, so the first, second, and The third pixel units 7 6B, 7 6R, and 7 6G are blue sub-pixel units, red sub-pixel units, and green sub-pixel units, respectively, and can display three monochromatic lights of blue, red, and green. Every two phases are Zheng blocking walls. Ionizing gas is filled between the electrodes. When the electrode pair 56 drives the plasma in the sub-pixel unit 76B, 76R, or 76G to ionize, the ultraviolet rays generated by the plasma will illuminate the phosphor 7 4B, 7 4R, or 74G. And make the sub-pixel unit 76B, 76R, or 76G emit a monochromatic light. In addition, the top ends of the plurality of barrier walls are fixed to the rear side of the front plate 54 to isolate the plasma on the two sides of the barrier walls from each other. Circulation. Please refer to Figure 5. Figure 5 is an image of the plasma display 50 shown in circle 4. Army

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Bucket / OITO V. Description of the invention (7) Top view of the Wu 78. As shown in FIG. 5, the area of the first, pole 62 8 ° (that is, the area of the first-time pixel unit from the transparent electrode; the area of the sustain electrode 64) is larger than the area of the second-time pixel unit 2 = the area of the pole 81 81 And the third image like the first H? Area 83 is also larger than the second pixel unit: 8 Budang plus a voltage drop in the first electricity to engage Jiu Di Emperor Power, 62 area sub-pixel unit 76B generates electricity \ \ 极 = and second, pole, when, the--,,, fruit area will be larger than the second domain like the majestic region of the quarantine area, and the third-time pixel unit 76G generates plasma pixels. The area where electricity is generated within the unit & 76R ^ The area where electricity can be generated in the element unit 76B is larger than the area where plasma can be generated by red 7fiM and MM, and the area where the plasma is generated by green sub-pixel unit 4 is also larger than red The area / area β in the sub-pixel unit 76R is so _ to control each sub-pixel unit w of the color element unit 78: the different colors of the light displayed by the 76 G during the synthesis are displayed, or the plasma display 5 is reduced. Case of accidental discharge. In addition, the pixel units 76B and 76 (?) Have characteristics of blue phosphors and green phosphors. The area 80 of the first electrode 62 in the second pixel unit 76B may be designed to be greater than or equal to the third The area 83 of the first electrode 62 in the sub-pixel unit 76G is used to adjust the light generation results in each sub-pixel unit 76B, 76R, 76G. 0 On the other hand, each pixel unit contains a different electrode pair width. The sub-pixel unit. The distance between the outer edge of the first electrode 62 and the outer edge of the second electrode 63 in the first pixel unit 76B is called a first electrode pair width 476093. 5. Description of the invention (8) 84B, the second pixel The distance between the outer edge of the first electrode 62 and the outer edge of the second electrode 63 in the unit 76R is referred to as a second electrode pair width g4R, and the outer edge of the first electrode 62 and the second electrode 63 outside the third pixel unit 76G The distance between the edges is called the third electrode pair width 84G. The width of the first electrode pair 84β is greater than the width of the third electrode pair 84G, and the width of the third electrode pair 84G is greater than the width of the second electrode pair 84R. When a pressure is applied When it falls between the first electrode 62 and the second electrode 63, the pixel unit 7 6 B is again The area where the plasma is generated will be larger than the area where the plasma is generated in the third pixel unit 76G, and the area where the plasma is generated in the third pixel unit 76G will be larger than the area where the plasma is generated in the second pixel unit 76R. The larger the width of the electrode pair of the pixel unit, the stronger the ionizing gas that can be driven. The light emitted by the phosphor in your sub-pixel unit is also stronger. Therefore, if the width of the electrode pair of the If-element is different, the sub-pixel unit emits The intensity will also be different. That is to say, the first pixel unit $ can emit strong blue light, the third pixel unit 76 (j emits green light and the ft subpixel unit 76R emits minimal red light, as shown here If the sub-pixel units 76B, 76R, and 76 of the 78 are not cleared earlier, the color temperature of the same color light rays can be increased when they are synthesized. Image 4 阅 View 60 Figure 6 is a plasma of the second embodiment of the present invention Display 9 0 Display 90: if! Ϋ. The same as the plasma display 50, the electrocondensation is larger than the area of the first electrode 62 in the pixel early Wu 76B 80 series indicator 90 torpedo difficult to early 76R The area of the first electrode 62 in the plasma display The main difference between the first and second -f filters 50 is the shapes of the first and second electrodes 90, 95, and 5. The electrodes in each pixel unit

Page 12 476093 V. Description of the invention (9) The widths are the same, but the discharge intervals are slightly different. In addition, the first pixel unit 76B contains a blue phosphor (not shown), the second pixel unit 76R contains a red phosphor (not shown), and the lighting voltage of the blue light source is (Firing voltage) is greater than the lighting voltage of the red phosphor. 'As shown in FIG. 6, the distance between the inner edge of the first electrode 94 and the second electrode unit 76B in the first pixel unit 76B is referred to as a first discharge interval 98B, and the second pixel unit = the first electrode in 76R The distance between the inner edge of 94 and the inner edge of the second electrode 95 is called a first discharge interval 98R, and the distance between the inner edge of the first electrode 94 and the inner edge of the second electrode 95 in the third pixel unit 76G is called a third discharge interval. 98G. The second electrical interval 98_ is smaller than the third discharge interval 98G, and the third discharge interval pG is based on the ^ discharge interval_, so that the lighting voltage of the first 'second and third pixels 7 ^, 76 and 76G (firing) The gap of v〇ltag_ = 2,7 The smaller the discharge interval, the lower the lighting voltage, so the lighting voltage of the blue sub-picture pair ΪΠίίϊ will decrease, and the red sub-pixel single: :: the lighting voltage will rise High. So-in the future, the pixel unit is willing to combine [the lighting of electrode pair 56 of Yu Sudanwu 7 ... 76G, 768 'when a depletion is simply applied to electrode pair 9 6' so that no false discharge occurs ( misf, / Into the pixel is lit early, it is less easy to produce, 1111 sfl ring). Please refer to Figure 7. _100 pixel unit ln9 = 7 is the third embodiment of the present invention plasma display electro-polymer display Top view of 100. The same as that of the polycondensing display 50 is that the '80 series is larger than the area of the first electrode 62 in the Γ sub-pixel unit 76B. The area of the first electrode 62 in the pixel unit 76R is 8 ohms.

Page 13 476093 V. Description of the invention The main difference between the plasma display 100 and the plasma display 50 and 90 is also the shape of the first and second electrodes 104 and 105 of the plasma display 100. The width of the three sub-pixel units 76B, 76R, and 76G in each pixel unit 102 of the plasma display 100 is 84B, 84R, and 84G are different, and each of the three sub-pixel units 76B in each pixel unit 102 The electrode pair pitches of 98B, 76R, and 76G are also different. In this way, the effect of increasing the color temperature can be achieved, and the situation of erroneous discharge is less likely to occur. See Figure 8. FIG. 8 shows a plasma display according to a fourth embodiment of the present invention.

Top view of the 110 pixel unit 112. The main difference between the plasma display no and the plasma display 50, 90, 100 is the structure of the electrodes of the plasma display 110. The plasma display 110 includes a first electrode 114, a second electrode I15, a third electrode 116, and a fourth electrode 117, and is disposed below the front plate 54 along the first direction X. The third electrode 6 is located between the first electrode 4 and the fourth electrode 11 7, and the third electrode 1 6 is connected to the first electrode u 4, and the fourth electrode 1 1 7 is located at the second electrode Between π 5 and the third electrode 1 丨 6, and the fourth electrode 1 1 7 is electrically connected to the second electrode 1 丨 5. The first, second, third, and fourth electrodes 1 1 4, 1 1 5, 1 1 6, and 11 7 are each composed of an opaque conductor. The first electrode 114 and the second electrode U5 in the first pixel unit 76B are a first electrode pair width 84B, and the distance between the electrode 114 and the second electrode 115 in the second pixel unit 76R is a second electrode. To the width. Because the width of the first electrode pair 84B is larger than the width of the second electrode pair 8, so when a voltage drop is applied between the first electrode 114 and the second electrode 115

Page 14 V. Description of the invention (11) At the time of the first time, the area where the plasma unit TG 2 is generated in the first pixel unit 76Brt > i, # m element unit 76R is larger than the second image light intensity difference, in order to achieve color temperature improvement * The distance between the single pixel and the single pixel of the sub-pixel is ί i ϊ = 9ΐΒ The distance between the 2nd and the 3rd pole is-the distance of the fourth electrode 117 [a-the third electrode 116 and the 98B are smaller than the-discharge 2 Distance ^; discharge interval 98R. Due to the bright voltage of the -discharge interval, (Ϊ 二 == * K 第;: the gap between the pixel voltage of the pixel unit is reduced, it is not easy to cause an error; the unit fails to light up the electric product (ΐ ϊ 极 i ί ：: 2) ί ί if: the driving area of the electrode medium of the prime unit is 驱动, and the driving area of the green sub-pixel unit is smaller), which can reduce the discharge effect of the electrode driving area of the long pixel 70 Tian also achieved the color temperature increase, 50, t, and η of the present invention. Compared with the conventional plasma display 10, 40, the plasma of the present invention + ¾ (electricity can be adjusted)-the distance between the unipolar pairs of the prime elements is different, Or both are different), the different colors displayed in the unit are also displayed when each of the sub-pixels 78, 92, 102, 112 is displayed, w (also line, in order to improve the different colors of light in the synthesis of 'fox', Can adjust the electrode pair current of each sub-pixel unit

476093 V. Description of the invention (12) Ionize the ignition voltage of the ionized gas in each sub-pixel unit to reduce the situation of mis-discharge.

Page 16 476093 Simple description of diagrams Simple explanation of diagrams Figure 1 is a schematic diagram of a conventional plasma display. FIG. 2 is a schematic diagram of a conventional plasma display. Figure 3 is a top view of a conventional plasma display. FIG. 4 is a schematic diagram of a plasma display according to a first embodiment of the present invention. FIG. 5 is a top view of a pixel unit of the plasma display shown in FIG. 4. Fig. 6 is a top view view of a pixel unit of a plasma display of a second embodiment of the present invention. Fig. 7 is a top view of a pixel unit of a plasma display of a third embodiment of the present invention. Fig. 8 is a plasma display of a fourth embodiment of the present invention. Explanation of the symbol of the top view of the pixel unit

5〇 \ 90 62 > 94 100, 110 Plasma display 52 Rear plate 54 Front plate 56, • 96 Electrode pair 58 Dielectric layer 60 Protective layer 64 Maintenance electrode 66 Auxiliary electrode 68 First barrier wall 69 Second barrier wall 70 Barrier wall 71 Fourth barrier wall 72 Data electrode 104, 114 _ 丨 _ Electrode page 17 476093 Simple explanation of formula 63, 95, 105, 74B, 74R, 76B, 76R, 78, 92, 102, 84B, 84R, 98B, 98R, 115 second electrode 116 third electrode 74G blue, red 76G first, second 11 2 pixel unit 84G first, second 98G first, second 117 fourth electrode, green phosphor, first Triple pixel unit, third electrode pair width, third discharge pitch

Page 18

Claims (1)

476093 6. The scope of patent application includes a plasma display panel (Ptasma display panel, PDP), the rear panel, the front panel, and the front panel is arranged in parallel on the rear panel; the poles are arranged in parallel with a second electrical direction On the lower side of the front plate; and a plurality of barrier electrode pairs, the electrode pair includes a first electrode 'the first electrode and the second electrode are along a first side ^ ΠΓ · I '/ Ί × (rib) wall, the plurality of barrier walls include at least a second barrier wall and a third barrier wall, arranged along a second parallel and equidistantly on the upper side of the rear plate, and the second angle is vertical , The second barrier [the second barrier] is called a first intersect (intersect ιοη) to form a first% unit, and the second barrier wall, the sub-pixel is formed early (the sub pixel becomes a second pixel unit; a barrier The intersection of the wall and the electrode pair forms the area where the _ = th-electrode in the first sub-pixel unit is larger than the area of the 苐 -electrode and the second 1, so that when a pressure drop is applied to … The field is larger than the second: =:!: Fhai sub-pixel unit The area where the electric pixels are formed into the plasma early. The element 1 of the patent scope of the "Single-History" patent: 7 " inner rear panel and two-resistance display, in which each time the image is gt color, the output is — Monochromatic light, and the two sides are covered with a phosphor, a light body, and the second coating in the unit can emit the first phosphor. The pixel early coating can emit red 476093 6. Scope of patent application 3. For the plasma display of item 1 of the patent application scope, wherein the distance between the outer edge of the first electrode and the outer edge of the second electrode in the first pixel unit is called a first electrode pair width, The distance between the outer edge of the first electrode and the outer edge of the second electrode in the second pixel unit is called a second electrode pair width, and the width of the first electrode pair is larger than the width of the second electrode pair, so that when a pressure is applied When falling between the first electrode and the second electrode, the area where the plasma is generated in the first pixel unit is larger than the area where the plasma is generated in the second pixel unit. Plasma display, wherein the first pixel unit contains a first color A phosphor, the second pixel unit contains a second-color phosphor, and the firing voltage of the first-color phosphor is greater than the firing voltage of the second-color phosphor, the The distance between the inner edge of the first electrode and the inner edge of the second electrode in the first pixel unit is referred to as a first discharge gap. The distance between the inner edge of the first electrode and the inner edge of the second electrode in the second pixel unit The distance is called a second discharge interval, and the first discharge interval is smaller than the second discharge interval, so that the difference between the lighting voltage of the first color phosphor and the lighting voltage of the second color phosphor is reduced. 5. For the plasma display of item 1 of the patent application scope, wherein the first electrode includes at least a transparent conductor, and the first electrode located in the first pixel unit includes a first transparent conductor, located in the second time. The first electrode in the pixel unit includes a second transparent conductor, and the area of the first transparent conductor is larger than the area of the second transparent conductor. Page 20 476093 6. Application scope 6 · A plasma display panel (PDP), which includes: a rear panel; a front panel, the front panel is arranged on the rear panel in parallel; An electrode pair, the electrode pair including a first electrode and a second electrode, the first electrode and the second electrode being disposed along a first direction below the front plate; and a plurality of barrier walls (Rib), the plurality of barrier ribs include at least a first barrier rib, a second barrier rib, and a third barrier rib, which are sequentially and parallelly disposed on the upper side of the rear plate along a second direction, and the second direction Is approximately perpendicular to the first direction, the first barrier wall, the second barrier wall and the electrode pair intersect to form a first pixel unit (sub pixel unit), the second barrier wall and the third barrier A second pixel unit is formed at the intersection of the wall and the electrode pair; wherein the distance between the first electrode and the second electrode in the first pixel unit is a first electrode pair width, and the second pixel unit in the second pixel unit One electrode and second electrode The distance is a width of a second electrode pair, and the width of the first electrode pair is larger than the width of the second electrode pair, so that when a voltage drop is applied between the first electrode and the second electrode, the first pixel unit The area where the plasma is generated is larger than the area where the plasma is generated in the second pixel unit. 7. The plasma display of claim 6, wherein the first electrode and the second electrode are made of an opaque conductor. Page 21 476093 VI. Application for patent scope 8. For the plasma display of patent application No. 6, for each image, the rear plate in the element unit and the surface of two adjacent barrier walls are covered with a phosphor for A monochromatic light is emitted, and a phosphor that emits blue light is applied to the first pixel unit, and a phosphor that emits red light is applied to the second pixel unit. 9. For example, the plasma display of claim 6 in the patent application, wherein the first pixel unit contains a first color phosphor, the second pixel unit contains a second color phosphor, and the first The firing voltage of a color phosphor is greater than the firing voltage of the second color laborer, and the plasma display further includes a third electrode and a fourth electrode, the third electrode and the first electrode A four-electrode system is disposed below the front plate along the first direction, the third electrode system is located between the first electrode and the fourth electrode, and the third electrode system is in conduction with the first electrode, and the first electrode system A four-electrode system is located between the second electrode and the second electrode, and the fourth electrode system is in communication with the second electrode. The distance between the third electrode and the fourth in the first pixel unit is a first A discharge gap, the distance between the third electrode and the fourth electrode of the second pixel unit is a second discharge gap, the first discharge gap is smaller than the second discharge gap, so that the first color phosphor Lighting voltage of the second color phosphor The gap has narrowed. Page 22