KR100508951B1 - Plasma display panel - Google Patents

Abstract

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 having a partition structure partitioned independently by each discharge cell unit by partition walls formed between both substrates.

A plasma display panel according to the present invention includes: a first substrate and a second substrate disposed to face each other; Address electrodes formed on the second substrate; A partition wall disposed in a space between the first substrate and the second substrate to partition the plurality of discharge cells and the non-discharge region; A phosphor layer formed in each discharge cell; And discharge sustain electrodes formed on the first substrate. In this case, 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 to become narrower as the widths of both ends in the direction of the address electrode move away from the center of the discharge cells.

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 having a partition structure partitioned independently by each discharge cell unit by partition walls formed between both substrates.

In general, a plasma display panel (hereinafter referred to as a 'PDP') is a display device that realizes a predetermined image by exciting phosphors by ultraviolet rays generated by gas discharge. Is in the spotlight.

Referring to FIG. 16, in the conventional general PDP structure, an address electrode 101 is formed along one direction (the x-axis direction of the drawing) on the back substrate 100 and covers the address electrode 101 to cover the back substrate 100. The dielectric layer 103 is formed on the front surface. A stripe pattern partition wall 105 is formed between the address electrodes 101 adjacent to the dielectric layer 103, and red, green, and blue colors are formed between the partition walls 105. The phosphor layer 107 is formed.

In addition, a discharge holding electrode 114 composed of a pair of transparent electrodes 112 and a bus electrode 113 intersects the address electrode 101 on one surface of the front substrate 110 facing the rear substrate 100. The dielectric layer 116 and the MgO protective film 118 are formed on the entire front substrate 110 while being formed along the y-axis direction of the drawing and covering the discharge sustaining electrode 114.

The point where the address electrode 101 on the back substrate 100 and the discharge sustain electrode 114 on the front substrate 110 cross each other constitutes a discharge cell.

An address voltage Va is applied between the address electrode 101 and the discharge sustain electrode 114 to perform address discharge, and a sustain voltage Vs is applied between the pair of discharge sustain electrodes 114 to sustain discharge. The vacuum ultraviolet rays generated at this time excite the phosphor to emit visible light through the transparent front substrate 110 to implement the screen of the PDP.

However, in the PDP structure having the discharge sustaining electrode 114 and the stripe-shaped partition 105 of the type shown in FIG. 16, crosstalk may occur between neighboring discharge cells with the partition 105 therebetween. In addition, since discharge spaces are connected to each other along the direction in which the barrier ribs 105 are formed, there is a possibility that erroneous discharge occurs between neighboring discharge cells. In order to prevent this, the distance between the discharge sustaining electrodes 114 corresponding to adjacent pixels must be secured to a predetermined level or more, which hinders the improvement of efficiency.

 In order to solve this problem, a PDP having an improved electrode and partition structure as shown in FIGS. 17 and 18 has been proposed.

That is, although the PDP structure shown in FIG. 17 has a stripe-shaped partition wall 121 in a similar manner, the bus electrodes (ie, the pair of transparent electrodes 123a constituting the discharge sustaining electrode 123 face each other for each discharge cell). 123b) and a plasma display device disclosed in US Pat. No. 5,661,500.

However, even in the PDP having such a structure, misdischarge in the direction parallel to the partition wall as described above could not be solved. Therefore, the PDP shown in FIG. 18 is composed of a matrix consisting of vertical partitions 125a and horizontal partitions 125b orthogonal to each other. ) Is formed to have a bulkhead structure of (125) type, there is a PDP disclosed in Japanese Patent Laid-Open No. 10-149771 as a related art.

However, in this matrix-type partition wall structure, all parts are designed as discharge areas except the partition wall part, so there is only a region for generating heat and no region for absorbing / dissipating heat. Therefore, the cells which have been discharged for a certain time and the cells which have not been discharged exhibit a temperature difference with each other, and this temperature difference not only affects the discharge characteristics but also causes quality problems such as luminance difference and bright afterimage. Here, the term 'image persistence' refers to the difference in luminance between the area where the local bright pattern is located and the surrounding area when the same pattern is realized after continuing for a predetermined time with a bright pattern locally. Says what happens.

In addition, in the PDP having the matrix partition wall 125, the phosphor layer is not uniformly formed at the corners of the discharge cells that are separately partitioned, or the distance from the formed phosphor layer to the discharge sustaining electrode 127 is far from the visible light conversion efficiency. There was a problem.

The present invention has been made to solve the above problems, the object of which is to optimize the structure of the partition partitioning the electrode and the discharge cell that contributes to the discharge, thereby maximizing the discharge efficiency and visible light of vacuum ultraviolet generated during discharge It is to provide a plasma display panel that can increase the conversion efficiency to ensure the stability of the discharge.

Another object of the present invention is to provide a plasma display panel in which the vacuum partition of the panel can be smoothly formed during the panel manufacturing process by partially forming the partition wall partitioning the discharge cell.

In order to achieve the above object, a plasma display panel according to the present invention comprises: a first substrate and a second substrate disposed to face each other at a predetermined interval; Address electrodes formed on the second substrate; A partition wall disposed in a space between the first substrate and the second substrate to partition the plurality of discharge cells and the non-discharge area; Phosphor layers formed in the respective discharge cells; And discharge sustain electrodes formed on the first substrate. In this case, 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. In other words, the non-discharge area may be disposed on a line passing between the horizontal axis and the vertical axis passing through the center of each discharge cell, and the lines passing between the horizontal axis and the vertical axis passing through the center of each discharge cell cross each other. It is preferred to be disposed in the part.

The non-discharge regions may be formed to have independent cell structures by the partition walls, and the non-discharge regions may be divided into a plurality of cells. The pair of discharge cells adjacent to the discharge sustaining electrode are configured to share at least one partition wall.

In the plasma display panel according to another aspect of the present invention, each of the discharge cells is formed such that the widths of both ends in the direction of the address electrode become narrower from the center of the discharge cells.

Preferably, the depth measured from the upper end of the barrier ribs at both ends positioned in the address electrode direction of each of the discharge cells becomes shallower from the center of the discharge cell.

The shape of both ends of the discharge cell in the direction of the address electrode may have any one of a trapezoidal shape, a wedge shape, or an arc shape. The partition walls shared by a pair of neighboring discharge cells in the discharge sustaining electrode direction are formed in parallel to each other.

In the plasma display panel according to another aspect of the present invention, the non-discharge region is disposed in an area surrounded by a horizontal axis and a vertical axis passing through the center of each discharge cell, and the partition wall forming the discharge cell is parallel to the address electrode. And a first partition member and a second partition member that is not parallel to the address electrode. The second partition member may be formed to cross the address electrode direction.

Since the height of the first partition member and the second partition member is different from each other, the height of the first partition member may be formed higher or lower than the height of the second partition member.

In the plasma display panel according to another aspect of the present invention, 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, respectively, wherein each discharge cell is in accordance with the address electrode direction. The width of both ends becomes narrower as the distance from the center of the discharge cell becomes narrower, and the discharge sustaining electrodes are arranged in pairs to correspond to the respective discharge cells, and the pair of discharge sustaining electrodes It includes a protruding electrode which extends to the inside of the discharge cell to face each other.

The opposing protruding electrodes become narrower as the rear ends corresponding to both ends of the discharge cell move away from the center of the discharge cell, and both sides of the rear ends corresponding to both ends of the discharge cell are formed in the discharge cell. It may be formed parallel to the inner wall.

Each of the protruding electrodes arranged on at least one side of the pair of discharge sustaining electrodes may have a concave portion formed at an opposite end, and the concave portion may be formed at a central portion of the opposite end of the protruding electrode. The convex portions may be further formed on both sides of the concave portion of the protruding electrode, and the concave portion and the convex portion of the protruding electrode may be smoothly curved at an edge thereof.

The protruding electrode may be made of a transparent electrode.

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 showing a plasma display panel according to a first embodiment of the present invention, Figure 2 is a partial plan view showing a plasma display panel according to a first embodiment of the present invention.

Referring to FIG. 1, a plasma display panel (hereinafter referred to as a “PDP”) according to a first exemplary embodiment of the present invention basically faces the first substrate 10 and the second substrate 20 at predetermined intervals. The plurality of discharge cells 27R, 27G, and 27B are partitioned by partition walls in a space between the substrates 10 and 20 so as to cause plasma discharge, and the first substrate 10 and the second substrate ( 20, discharge sustaining electrodes 12, 13 and address electrodes 21 are disposed, respectively.

Specifically, first, a plurality of address electrodes 21 are formed along one direction (x-axis direction in the drawing) on the surface of the second substrate 20 facing the first substrate 10. The address electrodes 21 are formed in a stripe shape and are formed in parallel with neighboring address electrodes 21 while maintaining a predetermined interval. A dielectric layer 23 is also formed on the second substrate 20 on which the address electrode 21 is formed. The dielectric layer 23 is formed on the substrate while covering the address electrode 21, and may be formed on the entire surface of the substrate. In the present embodiment, the stripe address electrode 21 is taken as an example, but the scope of the present invention is not limited thereto, and the shape of the address electrode to be applied may be variously changed.

A partition wall 25 is disposed in the space between the first substrate 10 and the second substrate 20 to partition the plurality of discharge cells 27R, 27G, 27B and the non-discharge region 26. The partition wall 25 is preferably formed on the upper surface of the dielectric 23 formed on the second substrate 20. Here, the discharge cells 27R, 27G, and 27B contain a discharge gas therein, and are spaces that are intended to cause gas discharge therein while an address voltage or a discharge sustain voltage is applied, and the non-discharge area 26 has a separate voltage therein. Is not applied, and is thus an area or space where discharge or light emission is not intended. The non-discharge region 26 is formed to have a region at least larger than the top width of each partition wall 25 forming the discharge cells 27R, 27G, 27B.

The non-discharge area 26 partitioned by the partition wall 25 is disposed in an area surrounded by the imaginary horizontal axis H and the vertical axis V passing through the center of each discharge cell 27R, 27G, 27B. In particular, on the line passing between the horizontal axis (H) and the vertical axis (V) passing through the center of each of the discharge cells (27R, 27G, 27B), respectively, it is preferable to be disposed in the intersection portion. In other words, a common non-discharge region 26 is formed between two pairs of discharge cells horizontally and vertically adjacent to each other. The non-discharge regions 26 are formed to have independent cell structures by the partition walls 25.

On the other hand, the discharge cells 27R, 27G, and 27B are formed so as to share at least one partition wall with each other adjacent to the discharge sustain electrodes 12 and 13, and the address electrode 21 direction (x-axis in the figure). Direction, the width of both ends (discharge sustaining electrode direction, i.e., y-axis direction in the figure) becomes narrower as the distance from the center of each discharge cell 27R, 27G, 27B. That is, referring to FIG. 1, the width Wc at the center of the discharge cells 27R, 27G, 27B is larger than the width We at the ends of the discharge cells 27R, 27G, 27B. The width We at the end portion is gradually narrowed away from the center of the discharge cells 27R, 27G, 27B. In this embodiment, both ends of the discharge cells 27R, 27G, 27B located in the direction of the address electrode 21 have a trapezoidal shape, and thus the overall planar shape of each discharge cell 27R, 27G, 27B is octagonal. Is achieved.

The partition walls 25 partitioning the discharge cells 27R, 27G, and 27B and the non-discharge regions 26 are not parallel to the first partition member 25a and the address electrode 21 that are parallel to the address electrode 21. The second partition member 25b may be divided into two parts. The second partition member 25b is formed to intersect the address electrode 21 in the present embodiment. In particular, the second partition member 25b has an approximately X shape between the discharge cells 27R, 27G, and 27B adjacent to each other in the direction of the address electrode 21.

Phosphors of red (R), green (G), and blue (B) colors are applied to discharge cells 27R, 27G, and 27B, respectively, to form phosphor layers 29R, 29G, and 29B.

3 is a cross-sectional view taken along a line A-A of FIG. 2.

Referring to FIG. 3, in the discharge cell 27R of the PDP according to the present embodiment, a depth measured from an upper end of the partition wall 25 at both ends positioned in the direction of the address electrode 21 is measured in the discharge cell 27R. The further away from the center, the shallower it is formed. That is, the depth de at the end of the discharge cell 27R is shallower than the depth dc at the center, and the farther the depth de at this end is from the center of the discharge cell 27R. It gradually becomes shallow.

The phosphor layer formed in the discharge cell 27R at the end of the discharge cell 27R having a relatively weak intensity of gas discharge by forming the depth of the discharge cell 27R differently at the center and at both ends as described above. The distance between the 29R and the discharge sustaining electrodes 12 and 13 can be narrowed, and consequently the phosphor layer can be disposed at a closer distance from the discharge sustaining electrode to convert the vacuum ultraviolet rays into visible light generated during discharge. The efficiency can be improved. The same applies to the discharge cells 27G and 27B of different colors.

On the other hand, a plurality of discharge sustaining electrodes (a plurality of discharge sustaining electrodes) may be arranged along a direction (y-axis direction in the drawing) crossing the address electrode 21 on the second substrate 20 on the surface of the first substrate 10 facing the second substrate 20. 12, 13) are formed. In addition, a dielectric layer 14 is formed on the front substrate 10 while covering the discharge sustain electrodes 12 and 13, and an MgO protective layer 16 is formed thereon. 1 and 2, the dielectric layer 14 and the MgO protective layer 16 are omitted for simplicity of the drawings.

The discharge sustaining electrode 12 is formed in a stripe shape and corresponds to a pair of bus electrodes 12b and 13b corresponding to each of the discharge cells 27R, 27G and 27B, and the discharge cells 27R from the bus electrodes 12b and 13b. And protruding electrodes 12a and 13a which extend into the interior of the 27G and 27B so as to face each other. The protruding electrodes 12a and 13a are formed such that the rear ends corresponding to both ends of the discharge cells 27R, 27G and 27B become narrower as they move away from each center of the discharge cells 27R, 27G and 27B. do. The protruding electrodes 12a and 13a may be formed so that both sides of the rear end portions corresponding to both end portions of the discharge cells 27R, 27G and 27B are parallel to the inner walls of the discharge cells 27R, 27G and 27B. In particular, in the present exemplary embodiment, the rear end portions of the protruding electrodes 12a and 13a have a trapezoidal shape that narrows gradually to match the end shape of the discharge cells 27R, 27G and 27B.

The protruding electrodes 12a and 13a may be formed of transparent electrodes, and indium tin oxide (ITO) electrodes may be applied. It is preferable to use a metal electrode as the bus electrodes 12b and 13b.

4 is a partial plan view showing a modification of the PDP according to the first embodiment of the present invention.

In the non-discharge area 26 partitioned by the partition wall 25, a partition partition wall 24 that crosses the partition wall 24 may be formed. As shown, the divided partition 24 may be formed by extending the first partition member 25a, and the non-discharge area 26 may be divided into two parts 26a and 26b. Divided. However, the non-discharge area 26 may be divided into two or more parts according to the number or shape of the divided partitions.

Hereinafter, PDPs according to the second to eighth embodiments of the present invention will be described. The PDP according to the second to eighth embodiments of the present invention has the same basic structure as the PDP according to the first embodiment described above, and has a structure of the partition wall formed on the second substrate 20 or the first substrate 10. By varying the shape of the discharge holding electrode to be formed to improve the discharge efficiency. In each embodiment, the same components use the same reference numerals.

5 is a partial plan view showing a PDP according to a second embodiment of the present invention.

As shown, in the PDP according to the present embodiment, the plurality of discharge cells 37R, 37G, 37B and the non-discharge area 36 are partitioned by the partition wall 35, and the non-discharge area 36 is the first embodiment. As in the above, the discharge cells 37R, 37G, and 37B are disposed in an area surrounded by the horizontal axis and the vertical axis passing through the center.

The discharge cells 37R, 37G, and 37B have respective widths of discharge cells (discharge sustaining electrode directions, i.e., y-axis directions in the drawing) at both ends of the address electrode 21 in the direction (x-axis direction in the drawing). As the distance from the center of (37R, 37G, 37B) becomes narrower, it has a wedge shape. Therefore, the overall planar shape of each discharge cell 37R, 37G, 37B forms a hexagon.

On the other hand, the discharge holding electrodes 17 and 18 formed along the direction crossing the address electrode 21 (the y-axis direction in the drawing) are paired bus electrodes corresponding to each of the discharge cells 37R, 37G and 37B. 17b and 18b and protruding electrodes 17a and 18a extending from the bus electrodes 17b and 18b so as to face each other. The protruding electrodes 17a and 18a are formed such that the rear ends corresponding to both ends of the discharge cells 37R, 37G and 37B become narrower as they move away from each center of the discharge cells 37R, 37G and 37B. The wedge shape is made to match the shape of the end portions of the discharge cells 37R, 37G, and 37B.

6 is a partial plan view showing a modification of the PDP according to the second embodiment of the present invention.

In the non-discharge area 36 partitioned by the partition wall 35, a partition partition 34 may be formed to cross the partition wall 34. As shown, the divided partition 34 may be formed by extending the first partition member 35a, and the non-discharge area 36 may be divided into two parts 36a and 36b by the partition partition 34. Divided. However, the non-discharge area 36 may be divided into two or more parts according to the number or shape of the divided partitions.

7 is a partial plan view showing a PDP according to a third embodiment of the present invention.

As shown, in the PDP according to the present embodiment, the plurality of discharge cells 47R, 47G, 47B and the non-discharge area 46 are partitioned by the partition wall 45, and the non-discharge area 46 is the first embodiment. As in the example, the cells are disposed in an area surrounded by the horizontal and vertical axes passing through the centers of the discharge cells 47R, 47G, and 47B.

Each of the discharge cells 47R, 47G, 47B has a width (in the discharge sustaining electrode direction, that is, in the y-axis direction in the drawing) at both ends positioned in the direction of the address electrode 21 (x-axis direction in the drawing). The further away from the center of the cells 47R, 47G, 47B, the narrower the arc shape becomes.

On the other hand, the discharge sustaining electrodes 12, 13 formed along the direction crossing the address electrode 21 have a pair of bus electrodes 12b, 13b corresponding to each of the discharge cells 47R, 47G, and 47B. It includes protruding electrodes 12a and 13a extending from the electrodes 12b and 13b so that the pairs face each other. The protruding electrodes 12a and 13a become narrower as the rear ends corresponding to both ends of the discharge cells 47R, 47G and 47B move away from each center of the discharge cells 47R, 47G and 47B. It is formed, the shape is the same as that of the first embodiment. However, the present invention is not limited thereto and may have an arc shape to match the shape of the end portions of the discharge cells 47R, 47G, and 47B.

8 is a partial plan view showing a modification of the PDP according to the third embodiment of the present invention.

In the non-discharge area 46 partitioned by the partition wall 45, a partition partition 44 that crosses the partition wall 44 may be formed. As shown, the partition partition 44 may be formed by extending the first partition member 45a, and the non-discharge area 46 may be divided into two parts 46a and 46b by the partition partition 44. Divided. However, the non-discharge area 46 may be divided into two or more parts according to the number or shape of the divided partitions.

9 is a partially exploded perspective view showing a PDP according to a fourth embodiment of the present invention, and FIG. 10 is a partial plan view showing a PDP according to a fourth embodiment of the present invention. 11 is a cross-sectional view taken along line B-B of FIG. 10.

As shown, in the PDP according to the present embodiment, the partition wall 55 partitioning the discharge cells 57R, 57G, 57B and the non-discharge area 56 is a first partition member 55a parallel to the address electrode 21. ) And a second partition wall member 55b which are formed not to be parallel to the address electrode 21 but cross each other. Here, the second partition wall member 55b has an approximately X-shape between the discharge cells 57R, 57G, and 57B adjacent to the address electrode 21, and is adjacent to the discharge sustaining electrodes 12 and 13. The non-discharge area 56 having one independent cell structure is formed by the pair of second partition members 55b and the pair of first partition members 55a which are adjacent to and separated from each other in the direction of the address electrode 21. ) Is partitioned.

In addition, since the height of the first partition member 55a and the second partition member 55b constituting the partition wall 55 may be different from each other, in this embodiment, the height h1 of the first partition member 55a ) Is formed higher than the height h2 of the second partition member 55b. By doing so, as shown in FIG. 11, the exhaust space E is formed between the first substrate 10 and the second substrate 20, so that the vacuum exhaust of the panel can be smoothly performed during the panel manufacturing process. Although not illustrated, in another embodiment, the height of the first partition member 55a may be lower than that of the second partition member 55b.

In addition, the shape of each of the discharge cells 57R, 57G, 57B, the shape of the discharge sustaining electrodes 12, 13, and the positional relationship between the discharge cells 57R, 57G, 57B and the non-discharge area 56 may be determined by the first method. Same as in the example.

12 is a partially exploded perspective view illustrating a PDP according to a fifth embodiment of the present invention.

As shown, in the PDP according to the present embodiment, the partition wall 65 partitioning the discharge cells 67R, 67G, 67B and the non-discharge area 66 is a first partition member 65a parallel to the address electrode 21. ) And a second partition wall member 65b which are formed not to be parallel to the address electrode 21 but cross each other. Here, the plurality of first partition members 65a are formed in a stripe shape along the direction of the address electrode 21, and the second partition members 65b are adjacent to the discharge cells 67R in the address electrode 21 direction. 67G and 67B) are formed to have an approximately X-shape. Therefore, each non-discharge area 66 is divided into a pair of non-discharge areas 66a and 66b by a pair of neighboring second partition members 65b and a first partition member 65a crossing therebetween. .

In addition, since the height of the first partition member 65a and the second partition member 65b constituting the partition wall 65 may be different from each other, in this embodiment, the height of the first partition member 65a may be defined as: 2 is formed higher than the height of the partition member (65b). In this way, it is possible to smoothly evacuate the panel during the panel manufacturing process. Although not illustrated, in another embodiment, the height of the first partition member 65a may be lower than the height of the second partition member 65b.

In addition, the shape of each of the discharge cells 67R, 67G, 67B, the shape of the discharge sustain electrodes 12, 13, and the positional relationship between the discharge cells 67R, 67G, 67B and the non-discharge area 66 are described in the above-described first embodiment. Same as in the example.

13 is a partially exploded perspective view illustrating a PDP according to a sixth embodiment of the present invention.

As shown, in the PDP according to the present embodiment, the partition wall 75 partitioning the discharge cells 77R, 77G, 77B and the non-discharge area 76 is a first partition wall member 75a parallel to the address electrode 21. ) And the second partition wall member 75b which are formed not to be parallel to the address electrode 21 but cross each other. Here, a plurality of the first partition wall members 75a are formed in a stripe shape along the direction of the address electrode 21, and the second partition wall members 75b are adjacent to the discharge cells 77R in the direction of the address electrode 21. 77G and 77B) are formed to have an approximately X-shape. Therefore, each non-discharge area 76 is divided into a pair of non-discharge areas 76a and 76b by a pair of neighboring second partition wall members 75b and a first partition wall member 75a crossing therebetween. .

In addition, the height of the first partition wall member 75a and the second partition wall member 75b constituting the partition wall 75 may be different from each other. 2 is formed higher than the height of the partition member (75b). In this way, it is possible to smoothly evacuate the panel during the panel manufacturing process. Although not illustrated, in another embodiment, the height of the first partition member 75a may be lower than that of the second partition member 75b.

In addition, the shape of each of the discharge cells 77R, 77G, 77B, the shape of the discharge sustain electrodes 17, 18, and the positional relationship between the discharge cells 77R, 77G, 77B and the non-discharge area 76 may be determined by the second method. Same as in the example.

14 is a partially exploded perspective view illustrating a PDP according to a seventh embodiment of the present invention.

As shown, in the PDP according to the present embodiment, the partition wall 85 partitioning the discharge cells 87R, 87G, 87B and the non-discharge area 86 is a first partition member 85a parallel to the address electrode 21. ) And a second partition wall member 85b which is formed not to be parallel to and intersect with the address electrode 21. Here, a plurality of the first partition member 85a is formed in a stripe shape along the direction of the address electrode 21, and the second partition member 85b is adjacent to the discharge cells 87R in the address electrode 21 direction. 87G and 87B) are formed to have an approximately X-shape. Therefore, each non-discharge area 86 is divided into a pair of non-discharge areas 86a and 86b by a pair of neighboring second partition members 85b and a first partition member 85a crossing therebetween. .

In addition, since the height of the first partition member 85a and the second partition member 85b constituting the partition wall 85 may be different from each other, in this embodiment, the height of the first partition member 85a may be defined as: 2 is formed higher than the height of the partition member (85b). In this way, it is possible to smoothly evacuate the panel during the panel manufacturing process. Although not shown, in another embodiment, the height of the first partition member 85a may be lower than the height of the second partition member 85b.

In addition, the shape of each of the discharge cells 87R, 87G, 87B, the shape of the discharge sustaining electrodes 12, 13, and the positional relationship between the discharge cells 87R, 87G, 87B and the non-discharge area 86 are described in the above-described third embodiment. Same as in the example.

15 is a partial plan view showing a PDP according to an eighth embodiment of the present invention.

As shown, in the PDP according to the present embodiment, the discharge sustaining electrodes 92 and 93 are formed inside the discharge cells 27R, 27G and 27B from the bus electrodes 92b and 93b that cross the direction of the address electrode 21. And protruding electrodes 92a and 92b extending to the recesses, and the protruding electrodes 92a and 93a have a concave portion formed at the center of the opposite ends, and convex portions are formed at both sides thereof. Thus, by forming the concave portion and the convex portion at the center portions of the end portions of the protruding electrodes 92a and 93a, a gap is formed between the protruding electrodes 92a and 93a facing each other in one discharge cell 27R, 27G, 27B. That is, a long gap is formed at a portion of the concave portion facing each other, and a short gap is formed at a portion of the concave portion opposite to the concave portion, so that the gap is formed at the center of the discharge cells 27R, 27G, and 27B. Plasma discharge that has begun to be spread can be more efficiently diffused, thus increasing the discharge efficiency.

Both ends of the protruding electrodes 92a and 93a may have relatively convex portions by forming only concave portions at the center thereof, and both concave portions and convex portions may be formed around the normal end reference line. In addition, all of the pair of protruding electrodes 92a and 93a corresponding to one discharge cell 27R, 27G, and 27B may have the same shape as above, and only one of them may have the same shape as above. have. In addition, the concave and convex portions of the protruding electrodes 92a and 93a may preferably have their edges smoothly curved.

The shape of each discharge cell 87R, 87G, 87B and the positional relationship between the discharge cells 87R, 87G, 87B and the non-discharge area 86 are the same as in the first embodiment.

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 scope of the invention.

As described above, according to the PDP according to the present invention, the discharge efficiency can be improved by forming a non-discharge region between the discharge cells and optimizing the shape of the discharge cell in consideration of the discharge gas diffusion form, and the phosphor layer is discharge sustaining electrode. It can be arranged at a closer distance to the improved efficiency of the change of the vacuum ultraviolet light generated during the discharge into visible light.

In addition, by dividing each discharge cell into an independent space, crosstalk between adjacent discharge cells can be prevented. In addition, among the partition walls constituting the discharge cells, the partition walls that intersect the partition walls parallel to the address electrodes are divided to increase the height. By forming differently, it is possible to facilitate the vacuum exhaust of the panel during the panel manufacturing process.

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

2 is a partial plan view showing a plasma display panel according to a first embodiment of the present invention.

3 is a cross-sectional view taken along line A-A of FIG. 2.

4 is a partial plan view showing a modification of the plasma display panel according to the first embodiment of the present invention.

5 is a partial plan view of a plasma display panel according to a second embodiment of the present invention.

6 is a partial plan view showing a modification of the plasma display panel according to the second embodiment of the present invention.

7 is a partial plan view of a plasma display panel according to a third embodiment of the present invention.

8 is a partial plan view showing a modification of the plasma display panel according to the third embodiment of the present invention.

9 is a partially exploded perspective view illustrating a plasma display panel according to a fourth embodiment of the present invention.

10 is a partial plan view of a plasma display panel according to a fourth embodiment of the present invention.

FIG. 11 is a cross-sectional view taken along line B-B of FIG. 10.

12 is a partially exploded perspective view illustrating a plasma display panel according to a fifth embodiment of the present invention.

13 is a partially exploded perspective view illustrating a plasma display panel according to a sixth embodiment of the present invention.

14 is a partially exploded perspective view illustrating a plasma display panel according to a seventh embodiment of the present invention.

15 is a partial plan view showing a plasma display panel according to an eighth embodiment of the present invention.

16 is a partially cutaway perspective view of a conventional plasma display panel.

17 is a partial plan view showing a plasma display panel having a conventional stripe-type partition wall structure.

18 is a partial plan view showing a plasma display panel having a conventional matrix partition structure.

Claims (25)

A first substrate and a second substrate disposed to face each other; Address electrodes formed on the second substrate; A partition wall disposed in a space between the first substrate and the second substrate to partition a plurality of discharge cells and a non-discharge area; Phosphor layers formed in the respective discharge cells; And Discharge sustaining electrodes formed on the first substrate; Including, The non-discharge area is, Each of the partitions is formed in an independent cell structure, And a plasma display panel disposed in an area surrounded by a horizontal axis and a vertical axis passing through the centers of the discharge cells. The plasma display panel of claim 1, wherein the non-discharge area is disposed on a line passing between a horizontal axis and a vertical axis passing through the center of each discharge cell. The plasma display panel of claim 2, wherein the non-discharge region is disposed at a portion where lines passing between the horizontal and vertical axes passing through the centers of the discharge cells intersect. delete The plasma display panel of claim 1, wherein each non-discharge area having the cell structure is divided into a plurality of cells. The plasma display panel of claim 1, wherein the pair of discharge cells adjacent in the discharge sustaining electrode direction share at least one partition wall. A first substrate and a second substrate disposed to face each other; An address electrode formed on the second substrate; A partition wall disposed in a space between the first substrate and the second substrate to partition a plurality of discharge cells and a non-discharge area; Phosphor layers formed in the respective discharge cells; And A discharge sustaining electrode formed on the first substrate Including, The non-discharge area is, Each of the partitions is formed in an independent cell structure, Disposed in an area surrounded by a horizontal axis and a vertical axis passing through the centers of the respective discharge cells, Each discharge cell, And the widths of both end portions positioned in the address electrode direction become narrower as the distance from the center of the discharge cell becomes smaller. 8. The plasma display panel of claim 7, wherein a depth measured from an upper end of the barrier ribs at both ends positioned in the address electrode direction of each of the discharge cells becomes shallower from a center of the discharge cells. 8. The plasma display panel of claim 7, wherein both ends of the discharge cells in the direction of the address electrodes have a trapezoidal shape. 8. The plasma display panel of claim 7, wherein both end portions of the discharge cells in the direction of the address electrodes have a wedge shape. 8. The plasma display panel of claim 7, wherein both end portions of the discharge cells located in the address electrode direction have an arc shape. 8. The plasma display panel of claim 7, wherein barrier ribs shared by a pair of neighboring discharge cells in the discharge sustaining electrode direction are formed in parallel with each other. A first substrate and a second substrate disposed to face each other; An address electrode formed on the second substrate; A partition wall disposed in a space between the first substrate and the second substrate to partition a plurality of discharge cells and a non-discharge area; Phosphor layers formed in the respective discharge cells; And A discharge sustaining electrode formed on the first substrate Including, The non-discharge area is, Each of the partitions is formed in an independent cell structure, Disposed in an area surrounded by a horizontal axis and a vertical axis passing through the centers of the respective discharge cells, The partition wall forming the discharge cell, And a second partition member parallel to the address electrode, and a second partition member on which one side crosses the address electrode. The plasma display panel of claim 13, wherein the second partition member is formed such that one side thereof crosses the address electrode direction at right angles and the other side thereof obliquely crosses. The plasma display panel of claim 13, wherein the first barrier member and the second barrier member have different heights. The plasma display panel of claim 15, wherein a height of the first barrier member is higher than a height of the second barrier member. The plasma display panel of claim 15, wherein a height of the first barrier member is lower than a height of the second barrier member. A first substrate and a second substrate disposed to face each other; An address electrode formed on the second substrate; A partition wall disposed in a space between the first substrate and the second substrate to partition a plurality of discharge cells and a non-discharge area; Phosphor layers formed in the respective discharge cells; And A discharge sustaining electrode formed on the first substrate Including, The non-discharge area is, Each of the partitions is formed in an independent cell structure, Disposed in an area surrounded by a horizontal axis and a vertical axis passing through the centers of the respective discharge cells, Each discharge cell, Widths of both end portions positioned in the address electrode direction become narrower as the distance from the center of the discharge cell is increased. The discharge holding electrodes are arranged to correspond to each pair of discharge cells in pairs, And the pair of discharge sustaining electrodes include protruding electrodes formed to extend and face each inside the discharge cells. 19. The plasma display panel of claim 18, wherein the opposing protruding electrodes become narrower as the rear ends corresponding to both ends of the discharge cells move away from the center of the discharge cells. 20. The plasma display panel of claim 19, wherein the opposing protruding electrodes are formed so that both sides of the rear end portions corresponding to both end portions of the discharge cells are parallel with the inner wall of the discharge cells. 19. The plasma display panel of claim 18, wherein each of the protruding electrodes arranged on at least one side of the pair of discharge sustaining electrodes has a recess formed at an opposite end thereof. 22. The plasma display panel of claim 21, wherein the concave portion is formed at a central portion of an opposite end of the protruding electrode. 22. The plasma display panel of claim 21, wherein convex portions are formed at both sides of the concave portion of the protruding electrode. The plasma display panel of claim 22, wherein the concave portion and the convex portion of the protruding electrode are smoothly curved at their edges. 19. The plasma display panel of claim 18, wherein the protruding electrode comprises a transparent electrode.