KR100751362B1 - Plasma display panel - Google Patents

Abstract

In order to improve the optical characteristics, the present invention is arranged to face the front substrate and the front substrate, and the rear substrate defining red, green and blue discharge cells arranged in a row direction and a column direction between the front substrate and the front substrate. And first partition walls formed between the discharge cells arranged in the row direction, second partition walls connecting the first partition walls, and third partition walls disposed between the rows of the discharge cells. And a red, green, and blue light emitting phosphor layers disposed in the red, green, and blue discharge cells, respectively, and the discharge cells having the highest luminance among the red, green, and blue discharge cells have the largest size. Provided is a plasma display panel which is largely formed.

Description

Plasma display panel {Plasma display panel}

1 is a partially cutaway perspective view of a plasma display panel according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1.

FIG. 3 is a layout view illustrating an arrangement position of discharge electrodes, barrier ribs, and discharge cells shown in FIG. 1.

FIG. 4 is a layout diagram illustrating an arrangement position of discharge electrodes, barrier ribs, and discharge cells as a first modified example in which a third partition portion is disposed at a position different from that of FIG. 1.

FIG. 5 is a layout diagram illustrating arrangement positions of discharge electrodes, barrier ribs, and discharge cells as a second modified example in which a third partition portion is disposed at a position different from that of FIG. 1.

6 is a partially cutaway perspective view of the plasma display panel according to the second embodiment of the present invention.

FIG. 7 is a cross-sectional view taken along the line VII-VII of FIG. 6.

<Brief description of symbols for the main parts of the drawings>

100, 400: plasma display panel

111, 411: front substrate 115, 415: front dielectric layer

116, 416: protective layer 121, 421: back substrate

122, 422: address electrodes 125, 425: backside dielectric layer

126R, 126G, 126B, 426R, 426G, 426B: phosphor layer

130 and 430: partition 131 and 431: first partition

132, 432: second partition wall

133, 233, 333a, 333b, 433: third partition

X: Y electrode Y: Y electrode

150, 450: front panel 160, 460: rear panel

170, 470: discharge cell

170R, 170G, 170B, 470R, 470G, 470B: red, green, blue discharge cells

The present invention relates to a plasma display panel, and more particularly, to a plasma display panel with improved optical characteristics.

Plasma display device using plasma display panel is a flat panel display device that displays images by using gas discharge phenomenon. It is excellent in various displays such as brightness, contrast, afterimage, and viewing angle, and it is possible to display thin and large screens. It is attracting attention as a display device.

In the plasma display panel, the discharge margin is different depending on the characteristics of the phosphor layer. In addition, since the size of the plasma display panel is increased, the size of the discharge cells of the plasma display panel is gradually decreasing. However, in the discharge cells of such a small size, the luminance is reduced. In addition, since the luminous efficiency of the blue light emitting phosphor layer is generally low, a color temperature decrease phenomenon occurs such that the image is reddish.

An object of the present invention is to provide a plasma display panel having improved optical characteristics by improving luminance or color temperature.

The present invention is disposed so as to face the front substrate, the front substrate, and a rear substrate defining red, green, and blue discharge cells arranged in row and column directions between the front substrate and the front substrate. A partition including first partition walls formed between the discharge cells, second partition walls connecting the first partition walls, and third partition walls disposed between rows of the discharge cells, the red, A plasma display panel including red, green, and blue light emitting phosphor layers disposed in the green and blue discharge cells, and having the largest size of the discharge cells having the highest luminance among the red, green, and blue discharge cells; To provide.

In the present invention, it is preferable that the discharge cells have a substantially rectangular cross section, the discharge cells have substantially the same length, and the width of the discharge cells having the lowest luminance is greater than the width of the other discharge cells.

In the present invention, the green discharge cells are preferably formed larger than the red and blue discharge cells. In this case, the green light emitting phosphor layers may include Y-based or Zn-based phosphors, the blue light emitting phosphor layers may include BAM-based phosphors, and the red light emitting phosphor layers may include Y-based phosphors.

According to another aspect of the present invention, the present invention is disposed to face the front substrate and the front substrate, and to define red, green, and blue discharge cells arranged in row and column directions between the front substrate and the front substrate. First partitions formed between the substrate, discharge cells arranged in a row direction, second partitions connecting the first partitions, and third partitions disposed between the rows of discharge cells. A partition wall including red, green, and blue light emitting phosphor layers disposed in the red, green, and blue discharge cells, respectively, and the size of the discharge cell having the highest color temperature among the red, green, and blue discharge cells; It is preferable that it is formed largest.

In the present invention, it is preferable that the discharge cells have a substantially rectangular cross section, the discharge cells have substantially the same length, and the width of the discharge cells having the lowest luminance is greater than the width of the other discharge cells.

In the present invention, the blue discharge cells are preferably formed larger than the red and green discharge cells. In this case, it is preferable that the blue light emitting phosphor layers include phosphors of BAM series, the green light emitting phosphor layers include Y series or Zn series phosphors, and the red light emitting phosphor layers include V series or B series phosphors. Do.

In addition, in the present invention, it is preferable that the height of the portion where the second partition portions and the first partition portion intersect is lower than the height of the other portion of the partition.

Further, in the present invention, it is preferable that the third partitions are arranged so as to substantially correspond to the middle portions in the longitudinal direction of the second partitions. However, the third partition walls may be disposed to substantially correspond to the first partition walls. In addition, the third partitions may be disposed to substantially correspond to a central portion in the longitudinal direction of the second partitions and the first partitions.

Further, in the present invention, it is preferable to further include discharge electrodes extending along the discharge cells arranged in the row direction. In this case, each of the discharge electrodes is preferably arranged such that at least one portion corresponds to an area between the rows of the discharge cells. Each discharge electrode functions in common to discharge cells in adjacent rows, and each discharge electrode is electrically connected to a bus electrode disposed to correspond to an area between rows of the discharge cells, and to the bus electrode. It is preferable to include a transparent electrode extending in the direction of the discharge cells of the adjacent rows.

In addition, the discharge electrodes are preferably disposed between the barrier rib and the front substrate.

The plasma display panel further includes address electrodes extending to intersect the discharge electrodes, a front dielectric layer and a rear dielectric layer covering the discharge electrodes and the address electrodes, respectively, and a discharge gas filled in the discharge cells. It is preferable.

Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 3, there is shown a plasma display panel 100 according to a first embodiment of the present invention. 1 is a partially cutaway perspective view of the plasma display panel 100, and FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 3 is a layout view showing an arrangement position of the discharge electrodes, the partition walls, and the discharge cells shown in FIG. 1.

Referring to FIG. 1, the plasma display panel 100 includes a front panel 150 and a rear panel 160 that are largely opposed to each other. The front panel 150 includes a front substrate 111, a pair of discharge electrodes 112, a protective layer 116, and a front dielectric layer 115. The back panel 160 includes a rear substrate 121 and a rear surface. A dielectric layer 125, address electrodes 122, barrier ribs 130, and red, green, and blue phosphor layers 126R, 126G, and 126B, between the front panel 150 and the back panel 160. In the space of the discharge gas (not shown) is filled. Look in detail below.

The front substrate 111 generally includes glass having excellent visible light transmittance. However, the front substrate 111 may be colored in order to improve the clear room contrast.

The rear substrate 121 is disposed to face each other at a predetermined interval from the front substrate 111, and is preferably formed of a material including glass. The back substrate 121 may also be colored in order to improve clear room contrast.

1 and 3, a partition wall 130 is formed between the front substrate 111 and the rear substrate 121 to partition a plurality of discharge cells 170 in which a discharge phenomenon occurs. Each of the discharge cells 170 includes red, green, and blue discharge cells 170R, 170G, and 170B having substantially rectangular cross sections. In this case, the discharge cells 170 are arranged in a matrix pattern, and more specifically, the discharge cells 170 are composed of a plurality of rows and a plurality of columns. The red discharge cells 170R, the green discharge cells 170R, and the blue discharge cells 170B are arranged along a column direction (second direction), respectively, and in the row direction, red, green, and blue discharge cells ( 170R, 170G and 170B are repeatedly arranged alternately.

The partition 130 performs a function of preventing optical / electric crosstalk between the discharge cells 170. The partition wall 130 may include first partition wall portions 131 partitioning between discharge cells 170 arranged in a row direction (first direction), and a second connection wall portion connecting the first partition wall portions 131. The partition parts 132 are included. Therefore, each discharge cell 170 has a closed structure defined by two first partition portions 131 facing each other and two second partition portions 132 facing each other.

The first partition wall 131 may have a width (W _G) of the green discharge cell is arranged to be larger than the width (W _R) of the width (W _R) and the blue discharge cells of the red discharge cells. Therefore, since the red, green, and blue discharge cells 170R, 170G, and 170B each have a rectangular cross section, and the length L of the red, green, and blue discharge cells is substantially the same, the green discharge cells The size of the fields 170G is greater than the sizes of the red discharge cells 170R and the blue discharge cells 170B. The purpose and effect of the non-uniformity of the size of the discharge cells will be described later. The width W _R of the red discharge cells may be the same as the width W _B of the blue discharge cells, or may be different from each other.

The discharge cells 170 arranged in the row direction (first direction) are spaced apart from each other at predetermined intervals. The partition wall further includes third partition wall portions 133 disposed in the spaced space. Moreover, each 3rd partition wall part 133 is arrange | positioned so that it may correspond to the center part of the longitudinal direction of each 2nd partition wall part 132 substantially. However, the arrangement position of the third partition 133 is not limited thereto. Referring to FIG. 4, a state where the third partition walls 233 are arranged to be aligned with the first partition walls 131 is illustrated. In addition, as shown in FIG. 5, a portion 333a of the third partition walls is aligned with the first partition walls 131, and the remaining 233b is the length of each second partition wall 132. It may be arranged to correspond to the center portion in the direction.

Referring back to FIG. 1, the height H of the portion 197 where the second partition portions and the first partition portions intersect is lower than that of other portions of the partition wall. The height is defined here as the average height of the top surface of each member. In the discharge cells 170 arranged in the row direction (first direction), since relatively large gaps are formed between the front panel 150 and the crossing portion 197, gas communication is caused in the gaps. It becomes possible. Therefore, the gaps have an advantage of smooth exhaust.

1 and 3, discharge electrodes X and Y are spaced apart from each other in parallel on the front substrate 111 facing the rear substrate 121. The discharge electrodes X and Y cause discharge in the discharge cells 170 and have a structure in which one X electrode X and one Y electrode Y are disposed in each discharge cell 170. Have Accordingly, each of the discharge electrodes X and Y performs the function of the X electrode or the Y electrode, and the discharge electrodes X and Y are repeatedly arranged alternately with the X electrode X and the Y electrode Y. It becomes a structure.

The discharge electrodes X and Y extend in the row direction (first direction). Each of the discharge electrodes X and Y includes bus electrodes Xb and Yb and transparent electrodes Xa and Ya electrically connected to the bus electrodes Xb and Yb. The width of the transparent electrode is greater than the width of the bus electrode, and the bus electrodes Xb and Yb are aligned with the transparent electrodes Xa and Ya.

The bus electrodes Xb and Yb are disposed to overlap the region 195 between the rows of the discharge cells 170 and a portion of the third partition 133. In general, the bus electrodes Xb and Yb are formed using a metal having excellent conductivity. In addition, since the bus electrodes Xb and Yb are formed in a multi-layered structure in which at least one layer has a dark color, bright bus contrast is improved by the bus electrodes Xb and Yb.

In addition, the transparent electrodes Xa and Ya extend from the region 195 between the rows of the discharge cells 170 to the inner regions of the discharge cells 170. Therefore, since the transparent electrodes Xa and Ya correspond to the discharge cells 170 of the adjacent rows in common, the transparent electrodes Xa and Ya function in common to the corresponding discharge cells.

The front dielectric layer 115 is formed on the front substrate 111 to fill the discharge electrodes X and Y. The front dielectric layer 115 prevents adjacent X electrodes X and Y electrodes Y from being energized with each other, and at the same time, charged particles or electrons are transferred to the X electrodes X and Y electrodes Y. It directly prevents damage to the X electrodes X and the Y electrodes Y. In addition, the front dielectric layer 115 performs a function of inducing charge.

On the front dielectric layer 115, a protective layer 116, which is usually made of MgO, is formed. The protective layer 116 prevents cations and electrons from colliding with the front dielectric layer 115 during the discharge to damage the front dielectric layer 115, and has good light transmittance and emits a lot of secondary electrons during the discharge. In particular, the protective layer 116 is mainly formed of a thin film using sputtering, electron beam deposition, or the like.

On the rear substrate 121 facing the front substrate 111, the address electrodes 122 are disposed to intersect the X electrodes 131 and the Y electrodes 132. The address electrodes 122 are intended to cause an address discharge to facilitate sustain discharge between the X electrodes 131 and the Y electrodes 132, and more specifically, serve to lower a voltage for sustain discharge. . The address discharge is a discharge that occurs between the Y electrodes 132 and the address electrodes 122.

The rear dielectric layer 125 is formed on the rear substrate 121 to bury the address electrodes 122. The back dielectric layer 125 is formed of a dielectric. In addition, the rear dielectric layer 125 prevents cations or electrons from colliding with the address electrodes 122 to damage the address electrodes 122 during discharge, and induces charge.

The red, green, and blue discharge cells 170R, 170G, and 170B have red light emitting phosphor layers 126R, green light emitting phosphor layers 126G, and blue light emitting phosphor layers 126B, respectively. The red light emitting phosphor layers 126R, the green light emitting phosphor layers 126G, and the blue light emitting phosphor layers 126B are disposed on the rear dielectric layer 125 and on the sidewalls of the partition wall 130. The phosphor layers 126R, 126G, and 126B include phosphors that receive ultraviolet rays and generate visible light.

In general, the green light emitting phosphor layers 126G have the highest luminous efficiency among the red light emitting phosphor layers 126R, the green light emitting phosphor layers 126G, and the blue light emitting phosphor layers 126B. Therefore, the luminance of the green discharge cells 170G is greater than the luminance of the red discharge cells 170R and the blue discharge cells 170B. This means that when increasing the discharge cells to a predetermined size, increasing the size of the green discharge cells is most effective in improving the luminance.

From the above consideration, assuming that the plasma display panel and the set number of discharge cells of the set area are assumed, it is preferable to increase the size of the green discharge cells 170G in order to improve the brightness of the plasma display panel 100. Do. In the present exemplary embodiment, since the width W _G of the green discharge cells is larger than the width W _R of the red discharge cells and the width W _B of the blue discharge cells, the sizes of the green discharge cells 170G are larger. It is larger than the size of the red and blue discharge cells 170R and 170B.

The green light emitting phosphor layers 126G include phosphors of Y series or Zn series. The Y-based phosphor has YBO ₃ : Tb, and the Zn-based phosphor has Zn ₂ SiO ₄ : Mn.

In addition, the blue light emitting phosphor layers 126B include a BAM series phosphor such as BAM: Eu, and the red light emitting phosphor layers 126R include a Y series phosphor such as Y (V, P) O ₄ : Eu. It is preferable.

In addition, as described above, the discharge cells 170 are filled with a discharge gas in which neon (Ne), xenon (Xe) and the like are mixed, and in the state where the discharge gas is filled as described above, the front substrate and the rear substrate ( The front and back substrates 111 and 121 are sealed to each other and joined by a sealing member such as frit glass formed at the edges of the 111 and 121.

Referring to the operation of the plasma panel 100 according to the present invention configured as described above are as follows.

An address discharge is generated by applying an address voltage between the address electrodes 122 and the Y electrodes Y, and the discharge cells 170 in which sustain discharge is generated are selected as a result of the address discharge. Thereafter, when a sustain voltage is applied between the X electrodes X and the Y electrodes Y of the selected discharge cells 170, the sustain discharge is generated.

 In this manner, ultraviolet rays are emitted while the energy level of the discharged gas excited during the sustain discharge is lowered. The ultraviolet rays excite the phosphor layers 126R, 126G, and 126B applied in the red, green, and blue discharge cells 170R, 170G, and 170B, and the excitation of the excited phosphor layers 126R, 126G, and 126B. As the energy level decreases, visible light is emitted, and the emitted visible light constitutes an image.

6 and 7, a plasma display panel 400 according to a second exemplary embodiment of the present invention is shown. 6 is a partially cutaway perspective view of the plasma display panel 400, and FIG. 7 is a cross-sectional view taken along the line VII-VII of FIG. 6. Hereinafter, description will be focused on the matters different from those of the first embodiment.

Referring to FIG. 6, the plasma display panel 400 includes a front panel 450 and a back panel 460 that are largely opposed to each other. The front panel 450 includes a front substrate 411, discharge electrodes X and Y, a protective layer 416, and a front dielectric layer 415. The structure and function of the front panel 450 are described above. Since it is similar to the front panel 150 of the first embodiment, it is omitted here.

The back panel 460 includes a back substrate 421, a back dielectric layer 425, address electrodes 422, barrier ribs 430, and red, green, and blue light emitting phosphor layers 426R, 426G, and 426B. The discharge gas (not shown) is filled in the space between the front panel 450 and the rear panel 460.

A partition wall 430 is formed between the front substrate 411 and the rear substrate 421 to partition the plurality of discharge cells 470 in which a discharge phenomenon occurs. The discharge cells 470 include red, green, and blue discharge cells 470R, 470G, and 470B. In this case, the discharge cells 470 are arranged in a matrix pattern. Since the arrangement structure of the discharge cells is similar to that of the first embodiment, a description thereof is omitted here.

The barrier rib 430 may include first barrier rib portions 431 for partitioning between discharge cells 470 arranged in a row direction (a first direction), and a second barrier rib portion 431 connecting the first barrier rib portions 431 to each other. The partition walls 432 are included. The first partitions 431 are disposed such that the width W _B of the blue discharge cells is greater than the width W _R of the red discharge cells and the width W _G of the green discharge cells. Accordingly, the blue, green, and blue discharge cells 470R, 470G, and 470B each have a rectangular cross section, and the red, green, and blue discharge cells have the same length L, and thus, the blue discharge cells. The size of the field 470B is larger than that of the red discharge cells 470R and the green discharge cells 470G. The purpose and effect of the non-uniformity of the size of the discharge cells will be described later. The width W _R of the red discharge cells may be the same as the width W _G of the green discharge cells, or may be different from each other.

The discharge cells 470 arranged in the row direction (first direction) are spaced apart from each other at predetermined intervals. The partition wall 430 further includes third partition wall parts 433 disposed in the spaced space. In addition, each of the third partition walls 433 is disposed to substantially correspond to the center portion in the longitudinal direction of each of the second partition walls 432. However, the arrangement position of the third partition portion 433 is not limited thereto, and may be disposed similarly to the structure shown in FIGS. 4 and 5.

Referring back to FIG. 6, the height H of the portion 497 where the third partition portions and the first partition portions intersect is lower than that of other portions of the partition wall. In the discharge cells 470 arranged in the row direction (first direction), since relatively large gaps are formed between the front panel 450 and the crossing portion 497, gas communication is caused in the gaps. It becomes possible. Therefore, the gaps have an advantage of smooth exhaust.

The structures and functions of the address electrodes 422 disposed on the back substrate 421 and the back dielectric layer 425 covering the address electrodes 422 are similar to those of the address electrodes 122 and the back dielectric layer 1 of the first embodiment. 125, so it is omitted here.

The red, green, and blue discharge cells 470R, 470G, and 470B have red light emitting phosphor layers 426R, green light emitting phosphor layers 426G, and blue light emitting phosphor layers 426B, respectively.

In general, among the red light emitting phosphor layers 426R, the green light emitting phosphor layers 426G, and the blue light emitting phosphor layers 426B, the blue light emitting phosphor layers 426B have the lowest luminous efficiency. Therefore, the luminance of the blue discharge cells 470B is lower than the luminance of the red discharge cells 470R and the green discharge cells 470G. Therefore, assuming a plasma display panel having a predetermined area and a predetermined number of discharge cells, it is preferable to increase the size of the blue discharge cell 470B in order to improve the color temperature of the plasma display panel 400. In the present embodiment, since the width W _B of the blue discharge cells is larger than the width W _R of the red discharge cells and the width W _G of the green discharge cells, the size of the blue discharge cells 470B is increased. It is larger than the size of the red and green discharge cells 470R and 470G.

The blue light emitting phosphor layers 426B preferably include BAM-based phosphors such as BAM: Eu.

In addition, the green light emitting phosphor layers 426G include Y-based or Zn-based phosphors. The Y-based phosphor has YBO ₃ : Tb, and the Zn-based phosphor has Zn ₂ SiO ₄ : Mn.

The red light emitting phosphor layers 426R may preferably include a V series or B series phosphor. The V-based phosphor has Y (PV) O ₄ : Eu, and the B-series phosphor has (Y, Gd) BO ₃ : Eu.

The discharge cells 470 are filled with a discharge gas in which neon (Ne), xenon (Xe), and the like are mixed, and in the state where the discharge gas is filled as described above, the edges of the front and rear substrates 411 and 421 are filled. The front substrate and the rear substrates 411 and 421 are sealed to each other and bonded to each other by a sealing member such as frit glass formed therein.

Since the operation of the plasma display panel 400 is similar to that of the first embodiment, it is omitted here.

In the plasma display panel according to the present invention, since the optical characteristics are improved, the quality of the plasma display panel is improved. In addition, the exhaust capacity for exhausting the impurity gas remaining in the discharge cells is improved.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (19)

Front substrate; A rear substrate disposed to face the front substrate and defining red, green, and blue discharge cells disposed in a row direction and a column direction between the front substrate; A partition including first partitions formed between discharge cells arranged in a row direction, second partitions connecting the first partitions, and third partitions disposed between rows of the discharge cells. ; And red, green, and blue light emitting phosphor layers disposed in the red, green, and blue discharge cells, respectively. And the largest discharge cell having the highest luminance among the red, green, and blue discharge cells. The method of claim 1, The discharge cells have a substantially rectangular cross section, The discharge cells are substantially the same length, And the width of the discharge cells having the highest luminance is greater than the width of other discharge cells. The method of claim 1, And the green discharge cells are formed larger than the red and blue discharge cells. The method of claim 3, wherein The green light emitting phosphor layers include Y-type or Zn-type phosphors. The method of claim 3, wherein The blue light emitting phosphor layers include a BAM series phosphor, The red light emitting phosphor layers include Y-based phosphors. Front substrate; A rear substrate disposed to face the front substrate and defining red, green, and blue discharge cells disposed in a row direction and a column direction between the front substrate; A partition including first partitions formed between discharge cells arranged in a row direction, second partitions connecting the first partitions, and third partitions disposed between rows of the discharge cells. ; And red, green, and blue light emitting phosphor layers disposed in the red, green, and blue discharge cells, respectively. And the largest discharge cell having the lowest luminance among the red, green, and blue discharge cells. The method of claim 6, The discharge cells have a substantially rectangular cross section, The discharge cells are substantially the same length, And the width of the discharge cells having the lowest luminance is greater than the width of other discharge cells. The method of claim 6, And the blue discharge cells are formed larger than the red and green discharge cells. The method of claim 8, The blue light emitting phosphor layers include a phosphor of BAM series. The method of claim 8, The green light emitting phosphor layers include Y-based or Zn-based phosphors, The red light emitting phosphor layers may include a V series or B series phosphor. The method according to claim 1 or 6, And a height of a portion where the second partitions and the first partitions intersect is lower than a height of another portion of the partition. The method according to claim 1 or 6, And the third partitions are disposed to substantially correspond to a central portion of the second partitions in the longitudinal direction of the second partitions. The method according to claim 1 or 6, And the third partition walls are disposed to substantially correspond to the first partition walls. The method according to claim 1 or 6, And the third partition walls are disposed to substantially correspond to a middle portion of the second partition walls in the longitudinal direction and the first partition walls. The method according to claim 1 or 6, And a discharge electrode extending along the discharge cells arranged in the row direction. The method of claim 15, And at least one portion of each of the discharge electrodes is disposed to correspond to an area between the rows of the discharge cells. The method of claim 16, Each of the discharge electrodes in common with discharge cells in adjacent rows. The method of claim 16, Each of the discharge electrodes may include a bus electrode disposed to correspond to an area between the rows of the discharge cells, and a transparent electrode electrically connected to the bus electrodes and extending in the direction of the discharge cells of adjacent rows. panel. The method of claim 16, Address electrodes extending to intersect the discharge electrodes; A front dielectric layer and a back dielectric layer covering the discharge electrodes and the address electrodes, respectively; And And a discharge gas disposed in the discharge cells.

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