KR100515333B1 - Plasma display panel - Google Patents

Abstract

The present invention relates to a plasma display panel that can improve the discharge efficiency by using a discharge gas having a high Xe content without increasing the discharge start voltage.

Address electrodes formed on the first substrate; A partition wall disposed in a space between the first substrate and the second substrate to partition the discharge cells and the non-discharge region; Red, green, and blue fluorescent layers formed in each discharge cell; A discharge sustaining electrode formed on the second substrate, wherein the non-discharge area is disposed in an area surrounded by a horizontal axis and a vertical axis passing through the center of each discharge cell, the discharge sustaining electrode comprising a bus electrode corresponding to each pair of discharge cells; A protruding electrode which extends from the bus electrode toward the inside of each discharge cell and is disposed so as to face each other and forms a concave portion at the center of the opposing surface where the pair face each other, wherein the inside of the discharge cell contains 10% or more of Xe; Filled with discharge gas.

Description

Plasma Display Panel {PLASMA DISPLAY PANEL}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel, and more particularly, to a plasma display panel in which shapes of members constituting a discharge cell are improved, and Xe content of a discharge gas is increased to improve discharge efficiency.

In general, a plasma display panel (PDP) is a display device for realizing an image by exciting phosphors by vacuum ultraviolet rays caused by gas discharge occurring in a discharge cell. It is attracting attention as the next generation thin display device. 6 is a partially exploded perspective view of a PDP according to the prior art, showing an AC PDP having a three-electrode surface discharge structure.

Referring to the drawings, the address electrodes 3 are formed in a stripe pattern on the back substrate 1 of the PDP, and the lower dielectric layer 5 is formed on the entire inner surface of the back substrate 1 while covering the address electrodes 3. . Above the lower dielectric layer 5, the partitions 7 are arranged in an arbitrary pattern, for example a stripe pattern, to form a discharge space, and red, green, and blue colors are formed on the side of the partition 7 and the upper surface of the lower dielectric layer 5. The fluorescent layer 9 is located.

On one surface of the front substrate 11 that faces the rear substrate 1, a discharge holding electrode 17 formed of the scan electrode 13 and the display electrode 15 is formed along a direction perpendicular to the address electrode 3. The upper dielectric layer 19 and the MgO passivation layer 21 are disposed on the entire inner surface of the front substrate 11 while covering the discharge sustain electrodes 17. By the combination of the rear substrate 1 and the front substrate 11, the discharge region where the address electrode 3 and the discharge sustain electrode 17 cross each other functions as one discharge cell, and the discharge cell (Ne−) is formed inside the discharge cell. Xe mixed gas).

With the above-described configuration, when the address voltage Va is applied between the address electrode 3 and the scan electrode 13, an address discharge occurs in the discharge cell, and as a result of the address discharge, the lower dielectric layer on the address electrode 3 ( 5) and a wall charge is generated on the scan electrode 13 and the upper dielectric layer 19 on the display electrode 15 to select a discharge cell in which light emission will occur.

Subsequently, when the sustain voltage Vs is applied between the scan electrode 13 and the display electrode 15 of the selected discharge cell, the ions accumulated on the scan electrode 13 and the electrons accumulated on the display electrode 15 collide with each other. Thereby causing plasma discharge, and vacuum ultraviolet rays are emitted from excitation atoms of Xe produced during plasma discharge. The vacuum ultraviolet rays excite the fluorescent layer 9 of the discharge cell and convert it into visible light, thereby enabling color display.

In the PDP operating as described above, the plasma discharge starts from the space between the scan electrode 13 and the display electrode 15 in the sustain period in which the actual light emission occurs, diffuses toward the outer portion of the discharge cell, and then disappears. Therefore, the shape characteristics of the members constituting the discharge cell have a great influence on the sustain discharge. In particular, the shape of the partition wall 7 which determines the shape of the discharge cell and the discharge sustain electrode 17 which causes the sustain discharge are large for the sustain discharge. Affect.

Considering the shape of the conventional partition wall 7 in consideration of this, the partition wall 7 is mainly composed of a stripe pattern parallel to the address electrode 3 for the convenience of manufacturing. However, in the structure of the barrier rib 7 of the stripe pattern, since all of the discharge cells positioned along the address electrode 3 direction are connected, there is a possibility that erroneous discharge occurs between the discharge cells due to charge diffusion.

Referring to the shape of the discharge sustaining electrode 17, the conventional scan electrode 13 and the display electrode 15 are formed in a stripe pattern along a direction orthogonal to the address electrode 3 to form a constant discharge gap G (approximately 60). It is arrange | positioned facing through-100 micrometers). In the shape of the discharge sustaining electrode 17, a strong initial discharge is locally generated in the above-described discharge gap G. When the initial discharge is locally generated, the plasma discharge cannot be efficiently diffused in the discharge cell. This has the disadvantage of deteriorating.

Furthermore, since the vacuum ultraviolet rays which can emit the fluorescent layer 9 from the excited atoms of Xe are emitted during the sustain discharge, the content of Xe contained in the discharge gas also has a great influence on the discharge efficiency. Accordingly, as the Xe content of the discharge gas is increased, stronger vacuum ultraviolet rays may be emitted. However, when only the Xe content is increased without improving the discharge cell structure, the discharge start voltage Vf is increased, which makes the PDP drive impossible. .

Therefore, the present invention is to solve the above problems, an object of the present invention is to improve the shape of the members constituting the discharge cell, and to provide an optimum Xe content suitable for the discharge cell structure to increase the discharge start voltage It is an object of the present invention to provide a plasma display panel capable of improving discharge efficiency without the need.

In order to achieve the above object, the present invention,

First and second substrates opposed to each other, address electrodes formed on the first substrate, partition walls disposed in a space between the first and second substrates to partition discharge cells and the non-discharge region, and respective discharges A red, green, and blue fluorescent layer formed in the cell, and discharge holding electrodes formed on the second substrate, wherein the non-discharge area is disposed in an area surrounded by a horizontal axis and a vertical axis passing through the center of each discharge cell, The electrode includes a bus electrode corresponding to each pair of discharge cells, and a protruding electrode extending from the bus electrode toward the inside of each discharge cell and arranged so that the pair faces each other and forming a recess in the center of the opposing surface where the pair face each other. The inside of the discharge cell provides a plasma display panel filled with a discharge gas containing 10% or more of Xe.

The discharge cells are formed narrower as the widths of both ends located along the address electrode direction become farther from the center of the discharge cells. The non-discharge area may be formed such that its center coincides with the center of the area surrounded by the horizontal axis and the vertical axis.

The partition wall includes a first partition wall member in a direction parallel to the address electrode, and a second partition wall member connecting the first partition wall members without being parallel to the address electrode, wherein the second partition wall member is defined by the first partition wall member. It is formed to intersect with an inclination angle.

The protruding electrode is formed to be narrower as the rear ends corresponding to both ends of the discharge cell move away from the center of the discharge cell. Preferably, the protruding electrodes are parallel to the inner wall of the discharge cell on both sides of the rear end corresponding to both ends of the discharge cell. Is formed.

The pair of protruding electrodes are positioned with the first discharge gap interposed therebetween by the concave portion corresponding to the center of each discharge cell, with the second discharge gap smaller than the first discharge gap corresponding to the outer portion of the discharge cell. Located. And it is preferable that the said discharge gas contains 10 to 60% of Xe.

Assuming a value obtained by adding the size of the first discharge gap and the size of the second discharge gap as A, the following condition is satisfied.

167 ≤ F (A + Xe) ≤ 240

Here, F (A + Xe) represents the sum of the constant excluding the micrometer when displaying the A value in micrometers (μm) and the constant excluding the% when displaying the Xe content of the discharge gas in%. .

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

1 is a partially exploded perspective view of a plasma display panel according to an exemplary embodiment of the present invention, and FIGS. 2 and 3 are partial plan views and partial cross-sectional views illustrating an assembled state of FIG. 1, respectively.

Referring to the drawings, in the plasma display panel according to the present embodiment (hereinafter referred to as 'PDP'), the first substrate 2 and the second substrate 4 are disposed to face each other at arbitrary intervals, and between the two substrates. In the space, a non-discharge region 8 is provided along with the discharge cells 6R, 6G, 6B. The discharge cells 6R, 6G, 6B are filled with discharge gas containing 10% or more of Xe.

First, address electrodes 10 are formed on an inner surface of the first substrate 2 along one direction (Y direction in the drawing), and cover the lower dielectric layer on the entire inner surface of the first substrate 2 while covering the address electrodes 10. 12) is formed. For example, the address electrodes 10 are formed in a stripe pattern and are formed to be parallel to each other with a neighboring address electrode 10 at a predetermined interval.

The partition wall 14 is disposed on the lower dielectric layer 12 to partition the discharge cells 6R, 6G, and 6B and the non-discharge region 8. Here, the discharge cells 6R, 6G, 6B are spaces intended to cause gas discharge and light emission therein, and the non-discharge regions 8 mean areas or spaces where gas discharge and light emission are not intended. 1 and 2 illustrate embodiments in which the discharge cells 6R, 6G, and 6B and the non-discharge regions 8 are formed to have independent cell structures, respectively.

More specifically, the partition wall 14 partitions the discharge cells 6R, 6G, and 6B along the direction of the address electrode 10 and the direction orthogonal to the address electrode 10 (the X direction in the drawing), and each discharge The cells 6R, 6G and 6B have an optimized shape in consideration of the diffusion form of the discharge gas. In addition, assuming a virtual horizontal axis H and a vertical axis V passing through the centers of the respective discharge cells 6R, 6G, and 6B, the non-discharge area (in the region surrounded by the horizontal axis H and the vertical axis V) 8) is located.

The optimized structure of the discharge cells 6R, 6G, and 6B is a shape in which each of the discharge cells 6R, 6G, and 6B substantially minimizes a small degree of contribution to sustain discharge and brightness enhancement. It means a shape in which the widths of both ends positioned in the direction of the address electrode 10 in each of the discharge cells 6R, 6G, and 6B become narrower as they move away from the center of the discharge cells 6R, 6G, and 6B.

That is, referring to FIG. 1, the width Wc at the center of the discharge cells 6R, 6G, and 6B is made larger than the width We at the end, and the width We at the end is the discharge cell 6R, 6G, 6B) shows a characteristic that becomes narrower away from the center. As a result, both ends of the discharge cells 6R, 6G, 6B have a trapezoidal shape, and the overall planar shape of each discharge cell 6R, 6G, 6B is octagonal.

As a result, the partition wall 14 may include a first partition wall member 14a in a direction parallel to the address electrode 10, and a second partition wall member connecting the first partition wall members 14a to the first partition wall member 14a without being parallel to the address electrode 10. 14b, in the present embodiment, the second partition member 14b is formed to intersect the first partition member 14a with a predetermined inclination angle. In particular, in the present embodiment, the second partition member 14b has an approximately X-shape between discharge cells neighboring in the direction of the address electrode 10.

Red, green, and blue phosphors are applied to the discharge cells 6R, 6G, and 6B to form the fluorescent layers 16R, 16G, and 16B. Referring to FIG. 3, in this embodiment, the depth measured from the upper end of the partition wall 14 at both ends of the discharge cell 6R positioned in the direction of the address electrode 10 is farther away from the center of the discharge cell 6R. It is formed small. That is, the depth de at the end of the discharge cell 6R is smaller than the depth dc at the center, and the depth de at the end becomes gradually shallower as it moves away from the center of the discharge cell 6R. The depth of this discharge cell is equally applied to the red discharge cell and the blue discharge cell.

In the present embodiment, the discharge cells 6R, 6G and 6B are filled with a discharge gas containing Xe of 10% or more, preferably 10 to 60%, specifically a Ne-Xe mixed gas.

On the other hand, the inner surface of the second substrate 4 facing the first substrate 2 is composed of the scan electrode 18 and the display electrode 20 along the direction orthogonal to the address electrode 10 (X direction in the drawing). Discharge sustaining electrodes 22 are formed. In addition, the upper dielectric layer 24 and the MgO passivation layer 26 are disposed on the entire inner surface of the second substrate 4 while covering the discharge sustain electrodes 22. For reference, in FIG. 1, the upper dielectric layer and the MgO protective layer are omitted for simplicity of the drawings.

In the present embodiment, the discharge sustaining electrodes 22 are formed in a stripe pattern so that the pair of bus electrodes 18a and 20a correspond to each discharge cell and each of the discharge cells 6R, 6G and 6B from the bus electrodes 18a and 20a. It consists of protruding electrodes (18b, 20b) extending toward the inside of each other so as to face each other. As the protruding electrodes 18b and 20b, a transparent electrode such as indium tin oxide (ITO) is preferable, and as the bus electrodes 18a and 20a, a metal electrode having excellent conductivity such as silver (Ag) is preferable.

The protruding electrodes 18b and 20b may be formed to be parallel to the inner walls of the discharge cells 6R, 6G and 6B on both sides of the rear end portions corresponding to both ends of the discharge cells 6R, 6G and 6B. That is, in the present embodiment, the rear ends of the protruding electrodes 18b and 20b have a trapezoidal shape narrowing toward the bus electrodes 18a and 20a so as to match the end shapes of the discharge cells 6R, 6G and 6B.

In addition, in the present embodiment, as shown in Fig. 2, the protruding electrodes 18b and 20b form a concave portion 28 in the center of the opposing surface where the pair face each other. As a result, the pair of protruding electrodes 18b and 20b are positioned with the first discharge gap G1 interposed therebetween to correspond to the center portions of the discharge cells 6R, 6G and 6B, and the outer edges of the discharge cells 6R, 6G and 6B. The second discharge gap G2 smaller than the first discharge gap G1 is disposed to correspond to the negative portion. At this time, it is preferable that both edges of the opposing surfaces of the protruding electrodes 18b and 20b are curved in consideration of discharge stability.

According to the above-described configuration, when the address voltage Va is applied between the address electrode 10 and the scan electrode 18, address discharge occurs in the discharge cell, and as a result of the address discharge, the lower dielectric layer on the address electrode 10 ( 12 and a wall charge is generated on the scan electrode 18 and the upper dielectric layer 24 on the display electrode 20 to select a discharge cell to emit light.

Subsequently, when the sustain voltage Vs is applied between the scan electrode 18 and the display electrode 20 of the selected discharge cell, plasma discharge starts from the discharge gap between the scan electrode 18 and the display electrode 20. The sustain discharge is terminated by dissipation after spreading in an approximately arc shape toward the outer portion of the cell. At this time, vacuum ultraviolet rays are emitted from the excitation atoms of Xe produced during plasma discharge, and the vacuum ultraviolet rays excite the fluorescent layer 16 to convert to visible light, thereby enabling color display.

Here, in the PDP according to the present embodiment, the discharge cells 6R, 6G, and 6B discharge in a rough arc shape from the discharge form of the discharge gas, that is, the discharge gap corresponding to the central portion of the discharge cells 6R, 6G, and 6B. As the structure is optimized according to the shape of diffusion toward the outer portion of the cells 6R, 6G and 6B, efficient sustain discharge occurs in all regions of the discharge cells 6R, 6G and 6B, thereby improving the discharge efficiency.

As described above, the depths of the discharge cells 6R, 6G, and 6B are differently formed at the centers and both ends of the discharge cells 6R, 6G, and 6B, so that the discharge cells 6R, 6G, The gap between the fluorescent layers 16R, 16G, 16B and the discharge holding electrode 22 can be narrowed at both ends of 6B). As a result, the fluorescent layers 16R, 16G, and 16B are arranged at a closer distance from the discharge sustaining electrode 22, so that the efficiency when the vacuum ultraviolet rays generated during the sustain discharge are converted into visible light can be improved.

In particular, in this embodiment, the discharge efficiency has a close relationship with the shape of the above-described protruding electrodes 18b and 20b and the Xe content of the discharge gas. More specifically, as shown in FIG. 4, when the sustain voltage Vs is applied between the scan electrode 18 and the display electrode 20 in the sustain period, the corresponding part of the discharge cell 6R may be formed. Plasma discharge starts first from the second discharge gap G2 and spreads around, and plasma discharge starts from the first discharge gap G1 corresponding to the center portion of the discharge cell 6R and spreads around.

Therefore, in the PDP according to the present embodiment, since the plasma discharge starts at the same time and spreads around at the center and the outer portion of the discharge cells 6R, 6G, and 6B, a strong initial discharge is generated over a wider area as compared with the conventional PDP. Happens. This initial discharge form leads to efficient discharge diffusion in the discharge cells 6R, 6G and 6B, thereby lowering the discharge start voltage Vf and improving the luminance imbalance in the discharge cells 6R, 6G and 6B.

In the present embodiment, the second discharge gap G2 between the scan electrode 18 and the display electrode 20 has a minimum size of approximately 30 μm, and the first discharge gap G1 is smaller than the second discharge gap G2. It is desirable to form a value of approximately 30 to 50 mu m large.

In addition, since the scan electrode 18 and the display electrode 20 are positioned with the first and second discharge gaps G1 and G2 interposed therebetween, the scan electrode 18 and the display electrode 20 have the effect of lowering the discharge start voltage Vf. The Xe content of the discharge gas can be increased without increasing the voltage Vf. Therefore, in this embodiment, the discharge gas contains 10% or more, preferably 10 to 60% of Xe, and has an advantage of increasing the brightness of the screen by emitting stronger vacuum ultraviolet rays during the sustain discharge by the increased Xe content.

On the other hand, the non-discharge region 8 located between the discharge cells 6R, 6G, 6B serves to absorb heat from neighboring discharge cells 6R, 6G, 6B and release it to the outside of the PDP. The PDP according to the example has excellent heat dissipation characteristics due to the non-discharge region.

Hereinafter, the relationship between the Xe content of the discharge gas and the first and second discharge gaps will be described with reference to Tables 1 and 5.

Table 1 below shows the value of A that can be driven at an appropriate discharge start voltage Vf by changing the Xe content of the discharge gas, assuming that A plus the size of the first discharge gap and the size of the second discharge gap is A. Represents the results obtained through the experiment. At this time, proper PDP driving was not possible under the condition that the discharge gas contained 60% or more of Xe.

In the table below, F (A + Xe) represents the sum of the constant excluding the micrometer when the A value is expressed in micrometers (μm) and the constant excluding the% when the Xe content of the discharge gas is expressed in%. . In the table below, the discharge efficiency measured for each Xe content of the discharge gas is assumed as 1 when the Xe content of the discharge gas is 5%.

Xe content of discharge gas (%) Proper A value (㎛) according to Xe content F (A + Xe) Discharge efficiency 5 180-210 185 to 215 One 7 170-210 177-217 1.05 10 165-210 175-220 1.35 15 155-195 170-210 1.45 20 147-190 167-210 1.57 25 143-187 168-213 1.76 30 137-187 167-217 2.0 35 135-185 170-220 2.26 40 133-185 173-225 2.41 50 125-180 175-230 2.89 55 120-177 175-232 3.12 60 110-170 170-240 3.48

As shown in the table, when the Xe content of the discharge gas is increased from 5% to 60%, the drive can be driven at an appropriate discharge start voltage Vf when the size of the first and second discharge gaps is reduced, and the discharge efficiency is increased. You can see the improvement. In particular, it can be seen that the discharge efficiency is greatly improved when the Xe content is 10% or more compared with the case where the Xe content of the discharge gas is 5%. Therefore, the PDP according to the present embodiment includes a discharge gas containing 10% or more and up to 60% of Xe together with the shape of the above-described protruding electrode to improve the discharge efficiency.

5 is a graph showing the discharge start voltage Vf according to the change of F (A + Xe), and the discharge start voltage Vf has a functional relationship according to the change of F (A + Xe).

Referring to the drawings, when the discharge gas contains 10 to 60% of Xe and the F (A + Xe) value satisfies the range of 167 to 240, the proper discharge initiation voltage (Vf) in the conventional PDP field is 180. You can see that it operates in the range of ~ 210V. Therefore, the PDP according to the present embodiment has a discharge sustaining electrode shape having a discharge gas containing 10 to 60% of Xe while satisfying the F (A + Xe) value of 167 to 240 range.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the range of.

As described above, according to the present invention, the discharge cell and the discharge sustaining electrode shape generate a strong initial discharge over a larger area in the discharge cell in the sustaining period, thereby improving the discharge efficiency. The present invention can also use a discharge gas containing 10% or more, preferably 10% to 60%, Xe, without increasing the discharge start voltage by the above-described discharge cell and discharge sustain electrode shapes. Therefore, the present invention has the effect of increasing the screen brightness by emitting a stronger vacuum ultraviolet light during the sustain discharge.

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

FIG. 2 is a partial plan view illustrating the assembled state of FIG. 1. FIG.

3 is a partial cross-sectional view showing the assembled state of FIG.

4 is a partially enlarged view of FIG. 2.

5 is a graph showing the discharge start voltage Vf according to the change of F (A + Xe).

6 is a partially exploded perspective view of a plasma display panel according to the prior art.

Claims (17)

First and second substrates disposed to face each other; Address electrodes formed on the first substrate; A partition wall disposed in a space between the first substrate and the second substrate to partition discharge cells and a non-discharge region; Red, green and blue fluorescent layers formed in the respective discharge cells; And Including discharge sustain electrodes formed on the second substrate, The non-discharge area is disposed in an area surrounded by a horizontal axis and a vertical axis passing through the center of each discharge cell, The discharge sustaining electrode is disposed so as to have a pair of bus electrodes corresponding to each of the discharge cells and a pair extending from the bus electrode to the inside of each of the discharge cells, and to form a recess in the center of the opposing surface where the pair face each other. A protruding electrode, The inside of the discharge cell is filled with a discharge gas containing 10% or more of Xe, The pair of protruding electrodes form a first discharge gap corresponding to the center of the discharge cell and a second discharge gap corresponding to an outer portion of the discharge cell, and determine the size of the first discharge gap and the size of the second discharge gap. Assuming that the added value is A, the plasma display panel satisfies the following conditions. 167 ≤ F (A + Xe) ≤ 240 Here, F (A + Xe) represents the sum of the constant excluding the micrometer when displaying the A value in micrometers (μm) and the constant excluding the% when displaying the Xe content of the discharge gas in%. . The method of claim 1, And wherein the discharge cells are formed narrower as the widths of both ends located in the direction of the address electrodes move away from the center of the discharge cells. The method of claim 2, And both ends of the discharge cells have a trapezoidal shape. The method of claim 1, And the discharge cell is formed to be smaller as the depth measured from an upper end of the barrier rib at both ends positioned along the address electrode direction is farther from the center of the discharge cell. The method of claim 1, And the non-discharge area is formed such that the center thereof coincides with the center of the area surrounded by the horizontal and vertical axes. The method of claim 1, And a first partition member in a direction parallel to the address electrode, and a second partition member connecting the first partition members without being parallel to the address electrode. The method of claim 6, And the second partition member is formed to cross the first partition member at a predetermined inclination angle. The method of claim 1, And the protruding electrode is formed to be narrower as the rear ends corresponding to both ends of the discharge cell move away from the center of the discharge cell. The method according to claim 1 or 2, And the protruding electrode is formed to be parallel to an inner wall of a discharge cell at both sides of a rear end portion corresponding to both ends of the discharge cell. The method of claim 1, The pair of protruding electrodes are positioned with a first discharge gap therebetween corresponding to the center of each discharge cell, and positioned with a second discharge gap smaller than the first discharge gap in correspondence with an outer portion of the discharge cell. Display panel. The method of claim 1, A plasma display panel wherein said discharge gas contains 10 to 60% of Xe. delete First and second substrates disposed to face each other; Address electrodes formed on the first substrate; A partition wall disposed in a space between the first substrate and the second substrate to partition discharge cells and a non-discharge region; Red, green and blue fluorescent layers formed in the respective discharge cells; And Including discharge sustain electrodes formed on the second substrate, The non-discharge area is disposed in an area surrounded by a horizontal axis and a vertical axis passing through the center of each discharge cell, Each of the discharge cells is formed narrower as the widths of both ends located in the direction of the address electrode move away from the center of the discharge cells. The discharge sustaining electrode is disposed so as to have a pair of bus electrodes corresponding to each of the discharge cells and a pair extending from the bus electrode to the inside of each of the discharge cells, and to form a recess in the center of the opposing surface where the pair face each other. Including a protruding electrode, The interior of the discharge cell is filled with a discharge gas containing 10 to 60% Xe, The pair of protruding electrodes form a first discharge gap corresponding to the center of the discharge cell and a second discharge gap corresponding to the outer portion of the discharge cell, and determine the size of the first discharge gap and the size of the second discharge gap. Assuming that the added value is A, the plasma display panel satisfies the following conditions. 167 ≤ F (A + Xe) ≤ 240 Here, F (A + Xe) represents the sum of the constant excluding the micrometer when displaying the A value in micrometers (μm) and the constant excluding the% when displaying the Xe content of the discharge gas in%. . The method of claim 13, And the discharge cell is formed to be smaller as the depth measured from an upper end of the barrier rib at both ends positioned along the address electrode direction is farther from the center of the discharge cell. The method of claim 13, And the protruding electrode is formed to be narrower as the rear ends corresponding to both ends of the discharge cell move away from the center of the discharge cell. The method of claim 13, The pair of protruding electrodes are positioned with a first discharge gap therebetween corresponding to the center of each discharge cell, and positioned with a second discharge gap smaller than the first discharge gap in correspondence with an outer portion of the discharge cell. Display panel. delete