JP2002008547A - Plasma display panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve cross talk between adjacent discharge cells, and to improve exhaust efficiency by securing a flowing path for exhaust and discharge gas sealing. SOLUTION: By a spacer 21, arranged in the direction perpendicular to line electrodes 12, 13 on a front side substrate 10, an influence between discharge cells, adjacent with each other in the extending direction of line electrodes 12, 13, is restrained, and by a barrier rib 32 on a back side substrate 11, the influence between discharge cells adjacent with each other in the extending direction of a data electrode 15, is restrained, consequently, cross talk is improved. As the flowing path for exhaust and discharge gas sealing is secured by the combination of the spacer and the barrier rib, exhaust efficiency is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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 related to a partition structure for securing a flow path of a sealed gas.

[0002]

2. Description of the Related Art FIG. 16 shows a conventional AC having a strip-shaped partition.
It is a partially broken perspective view of an (AC) surface discharge type color PDP (plasma display panel). This AC surface discharge type color PDP is provided between a front substrate 10 and a rear substrate 11.
A large number of discharge cells defined by the strip-shaped partition walls 31 are formed. On the front substrate 10, a surface discharge electrode group in which a plurality of pairs of scan electrodes 12 and a common electrode 13 are formed in a row direction (first direction), and a transparent dielectric layer (insulating layer) covering the surface discharge electrode group 16a). The rear substrate 11 has data electrodes 1 formed in a column direction (second direction) orthogonal to the scan electrodes 12 and the common electrodes 13.
5 groups and a dielectric layer (insulating layer 1) covering data electrode 15
6b). Further, between the insulating layer 16a and the insulating layer 16b, a strip-shaped partition wall 31 formed in parallel with the data electrode 15 is provided in order to form a discharge space. Then, the scan electrode 12 and the common electrode 1
3 and the data electrode 15 cross each other in a facing state, pixels for displaying by discharge are formed, and R (red) and G (R) are formed on the surface of the insulating layer 16 b and the side surface of the strip-shaped partition wall 31. Green (green) and B (blue) phosphors 17 are applied. Further, He (helium), N
A mixed gas of e (neon) and Xe (xenon) is sealed as a discharge gas.

In this type of color PDP, a plurality of discharge cells are continuously arranged in the direction of the strip-shaped partition wall 31 (second direction), and there is no clear boundary between the discharge cells. Therefore, the discharge light emission generated in one cell affects the discharge cells adjacent in the column direction (second direction), and the electric charge moves along the data electrode 15 to cause a false light. Had become.

Therefore, a partition structure for suppressing interference between adjacent cells has been proposed. FIG. 17 is a partially cutaway perspective view of an AC surface discharge type color PDP provided with a conventional grid-like partition. In Japanese Unexamined Patent Application Publication No. 11-21896, Japanese Unexamined Patent Application Publication No. 10-149771, and the 24th Plasma Display Technical Discussion Meeting (February 2000), pp. 5-6, the grid-like partition 32 is formed on the rear substrate 11 and the discharge is performed. A technique has been disclosed in which cells are completely partitioned in units of one pixel to prevent interference between discharge cells. Further, by forming grid-like partition walls 32 on the rear substrate 11, the data electrodes 1 are formed.
Since the movement of charges between the discharge cells adjacent to each other in the extension direction of No. 5 can be prevented, the cell interval can be narrowed. At the same time, the area of the phosphor applied per cell also increases. As a result, effects such as higher definition, higher aperture ratio, higher resolution, higher luminance, and higher luminous efficiency can be obtained.

[0005] Japanese Unexamined Patent Publication No. 10-223148, Japanese Unexamined Patent Publication No. 11-271727, Japanese Patent Publication No. 6-1671, and Japanese Patent Publication No. 6-105593 disclose technologies related to the present invention. There is a gazette.

[0006]

In the structure in which the grid-like partition is formed on the rear substrate as described above, the gas flow between the discharge cells is poor, and the distribution of the gas between all the discharge cells is low. Is non-uniform, and there is a problem that the display quality is deteriorated such as a partial decrease in luminance and discoloration.

In Japanese Patent Application Laid-Open Nos. Hei 11-213896 and Hei 10-149771, the barrier ribs in the direction crossing the data electrode are entirely or completely separated from the barrier ribs in the direction along the data electrodes. A technique has been disclosed in which an opening is formed by partially reducing the structure to secure a flow path for exhaust and discharge gas sealing. Japanese Patent Application Laid-Open No. 11-21896 discloses a technique in which a flow path hole is formed in a part of a side wall of a partition wall in a direction crossing a data electrode. Further, JP-A-11-260
Japanese Patent No. 264 discloses a technique in which a partition wall in a direction crossing a data electrode is made independent of a partition wall in a direction along a data electrode, and openings are formed at both ends or one end to secure a flow path.

[0008] However, when a structure is used in which an opening is formed in a partition wall in a direction transverse to the data electrode as shown in each of the above publications, the flow path for exhaust and discharge gas filling is limited to the extending direction of the data electrode. Is done. Therefore, there is a limit in improving the exhaust efficiency. Furthermore, the manufacturing method is complicated because the height of the lattice partition is partially reduced or holes are formed in the side wall surface.

An object of the present invention is to improve crosstalk in adjacent discharge cell spaces in view of the above-mentioned conventional problems.
It is another object of the present invention to secure a flow path for exhaust and discharge gas filling, improve exhaust efficiency, and easily realize display quality and reliability.

[0010]

A PDP according to the present invention has a front substrate provided with a plurality of row electrodes and a rear substrate provided with a plurality of column electrodes orthogonal to the row electrodes, and is arranged on the front substrate side. The second partition and the first partition disposed on the rear substrate side form a discharge space and secure a flow path for exhaust and discharge gas filling. The first partition and the second partition have different shapes or different arrangements. For example, when the first partition has a different shape such as a lattice-shaped partition and the second partition has a different shape such as a strip-shaped partition, the first partition and the second partition are both strip-shaped partitions having the same shape so that they are orthogonal to each other. In some cases, the arrangement of the first partition and the arrangement of the second partition are different. Hereinafter, in order to distinguish the first partition from the second partition, the first partition is referred to as a partition, and the second partition is referred to as a spacer. The material and manufacturing method of the first partition and the second partition may be the same or different.

According to the present invention, the cross talk can be improved by suppressing the influence between the adjacent discharge cells by the spacer arranged on the front substrate side and the partition arranged on the rear substrate side. Further, by the combination of the spacer and the partition, a flow path for exhaust and discharge gas filling can be secured, and the exhaust efficiency can be improved. As a result, the distribution of the sealed gas between the discharge cells in the panel is made uniform, and the display quality and reliability can be improved.

[0012]

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

(First Embodiment) FIG. 1 is a partially cutaway perspective view of an AC surface discharge type color PDP showing a first embodiment of the present invention. The front substrate 10 and the rear substrate 11 are arranged to face each other at a minute interval. A plurality of strip-shaped scan electrodes 12 and common electrodes 13 made of a transparent conductive film (hereinafter, referred to as a transparent electrode) are formed on the front substrate 11 in pairs in the row direction (first direction). The scan electrode 12 and the common electrode 13 are formed parallel to each other at a required interval, and are configured as a surface discharge electrode group. Each of the scan electrode 12 and the common electrode 13 includes a transparent electrode and trace electrodes 14a and 14b made of a metal film (hereinafter, referred to as a metal electrode) such as Ag (silver) for reducing the resistance thereof. Further, the scan electrode 12 and the common electrode 1
Reference numeral 3 is covered with a transparent dielectric layer (insulating layer 16a) formed by a thick film forming process or the like. On the other hand, on the rear substrate 11, a plurality of groups of data electrodes 15 composed of metal electrodes orthogonal to the scan electrodes 12 and the common electrodes 13 are provided.
They are formed in parallel in the row direction (second direction) at required intervals. The data electrode 15 is covered with a dielectric layer (insulating layer 16b) mixed with a white inorganic pigment formed by a thick film forming process or the like.

In order to form a discharge space between the insulating layer 16a on the front substrate 10 and the insulating layer 16b on the rear substrate 11, a band-shaped spacer 21 made of lead glass or the like having a low melting point is formed on the front substrate 10. At an intermediate position of the electrode 15 group,
It is formed along a column direction (second direction) orthogonal to the scan electrodes 12 and the common electrodes 13. The rear substrate 11 has a grid-like partition 3 so as to be partitioned in units of one pixel.
2 are formed. As a result, a space defined by the strip spacers 21 and the grid-like partition walls 32 is formed as a discharge cell space as a pixel. Further, a gap is formed between the front substrate 10 and the lattice-shaped partition wall 32 by the band-shaped spacer 21, and a flow path for exhaust and discharge gas sealing is secured. The periphery of the front substrate 10 and the rear substrate 11 is hermetically sealed by a peripheral wall (not shown). Then, the surface of the insulating layer 16b and the grid-like partition 32
R, G, and B phosphors 17 are applied to the side surfaces of.
Further, a mixed gas of He, Ne, Xe or the like is sealed in the discharge space as a discharge gas.

In the AC surface discharge type color PDP shown in the first embodiment, the scan electrodes 12 and the common electrodes 13 are formed by the band-shaped spacers 21 formed in the direction orthogonal to the scan electrodes 12 and the common electrodes 13 on the front substrate 10.
To prevent the movement of charges along the horizontal direction, and suppress the influence between the discharge cells adjacent in the row direction (first direction). Further, the grid-like barrier ribs 32 formed on the rear substrate 11 so as to be partitioned in units of one pixel prevent the movement of charges along the data electrodes 15 and allow the discharge cells adjacent in the column direction (second direction) to move between the discharge cells. To reduce crosstalk and improve crosstalk. In addition, by combining the strip spacers 21 and the grid-like partition walls 32, it is possible to secure a flow path for exhaust and discharge gas filling in the column direction. Therefore, it is possible to improve the exhaust efficiency while maintaining the effect provided by the grid-like partition 32 on the rear substrate 11. as a result,
The distribution of the filling gas between the discharge cells in the panel is made uniform, and the display quality and reliability of the PDP are improved.

As described above, the opening serving as the flow path for exhaust and discharge gas filling is formed by the band-like spacer 21 and the grid-like partition 3.
It is formed by a combination of two. The dimensions of the opening are determined by the height and the interval of the band-shaped spacer 21, and are arbitrarily designed within a range that does not hinder the flow of the sealing gas and does not deteriorate the discharge characteristics. The larger the area of the opening, the better the exhaust efficiency. FIG. 2 is a sectional view showing a part of the first embodiment. FIG. 3 shows the ultimate vacuum degree at the center of the panel in the PDP according to the first embodiment of the present invention when the air is evacuated, and the height H2 of the strip spacer 21 with respect to the height H1 of the grid-like partition 32. It is represented by the ratio of The horizontal axis indicates the evacuation time, and the vertical axis indicates the ultimate vacuum. As described above, the exhaust efficiency is greatly improved when H2 / H1 ≧ 0.2, and the exhaust is performed without any problem.
Further, when H2 / H1 ≧ 0.4, an exhaust efficiency close to that of a conventional structure having only strip-shaped partition walls can be obtained.

On the other hand, the area of the opening increases, that is, the height of the strip spacer 21 increases, and at the same time, the interference between adjacent discharge cells in the extension direction (second direction) of the data electrode 15 increases. In FIG. 4, the horizontal axis represents the ratio of the height H2 of the strip spacer 21 to the height H1 of the grid-like partition wall 32, and the vertical axis represents the false lamp voltage margin between discharge cells adjacent in the second direction (hereinafter, the vertical false lamp margin). It is expressed.) The vertical erroneous lamp voltage margin indicates a difference between a voltage at which a discharge selected cell completely completes discharge and a voltage at which a non-selected cell in the second direction starts discharging. In addition, the vertical error lamp voltage margin is preferably 7 V or more. Thus, H2 / H1
The vertical error lamp margin decreases as
In the range of 2 / H1 ≦ 0.8, a margin of 7 V or more is obtained, and the influence of crosstalk is suppressed.

Therefore, in consideration of the exhaust efficiency and the interference between the discharge cells, the height H2 of the band-shaped spacer 21 on the front substrate 10 is preferably in the range of 0.2H1 ≦ H2 ≦ 0.8H1, and the height H2 is more preferably 0.2H1 ≦ H2 ≦ 0.8H1. The range of 4H1 ≦ H2 ≦ 0.7H1 is more preferable.

(Embodiment 2) FIG. 5 is a partially cutaway perspective view of an AC surface discharge type color PDP showing a second embodiment of the present invention. Note that the same reference numerals are given to portions having the same configuration as the first embodiment. The front substrate 10 and the rear substrate 11 are arranged to face each other at a minute interval. A plurality of strip-shaped scan electrodes 12 and common electrodes 13 made of transparent electrodes are formed on the front substrate 11 in pairs in the row direction (first direction). The scan electrode 12 and the common electrode 13 are formed parallel to each other at a required interval, and are configured as a surface discharge electrode group. Scan electrode 12
And the common electrode 13 are both trace electrodes 14a, 1 made of a transparent electrode and a metal electrode for reducing the resistance thereof.
4b. The scan electrode 12 and the common electrode 13 are covered with a transparent dielectric layer (insulating layer 16a) formed by a thick film forming process or the like. On the other hand, a scan electrode 12 and a common electrode 1
A plurality of data electrodes 15 composed of metal electrodes orthogonal to 3
The groups are formed in parallel in the row direction (second direction) at required intervals. The data electrode 15 is covered with a dielectric layer (insulating layer 16b) mixed with a white inorganic pigment formed by a thick film forming process or the like. The above configuration is the same as that of the first embodiment.

In order to form a discharge space between the insulating layer 16a on the front substrate 10 and the insulating layer 16b on the rear substrate 11, a dashed spacer 22 made of low melting point lead glass or the like is provided on the front substrate 10. At an intermediate position of the group of data electrodes 15, they are formed along a column direction (second direction) orthogonal to the scan electrodes 12 and the common electrodes 13. The broken spacer 22 has a structure in which the strip spacer has an opening between the pair of row electrodes (between non-discharge gaps). Further, on the rear substrate 11, a grid-like partition wall 32 is formed so as to be partitioned in units of one pixel. As a result, a space defined by the dashed spacers 22 and the grid-like partition walls 32 is formed as a discharge cell space as a pixel.
Further, a gap is formed between the front substrate 10 and the grid-like partition wall 32 by the broken-line spacer 22, and a flow path for exhaust and discharge gas filling is secured. The periphery of the front substrate 10 and the rear substrate 11 is hermetically sealed by a peripheral wall (not shown). Then, the R, G, and B phosphors 17 are applied to the surface of the insulating layer 16b and the side surfaces of the lattice-shaped partition wall 32. Further, He, Ne, X
A mixed gas such as e is sealed as a discharge gas.

In the second embodiment, as in the first embodiment, the grid-like barrier ribs 32 on the rear substrate 11 prevent charges from moving along the data electrodes 15 and move in the column direction (second direction). Direction) between adjacent discharge cells. In addition, since the dashed spacers 22 on the front substrate 10 are arranged so as to cross the scan electrodes 12 and the common electrodes 13, charges along the scan electrodes 12 and the common electrodes 13 can also be prevented from moving. Here, the front substrate 10
Since the broken portion, ie, the opening, of the upper broken line spacer 22 is formed between the non-discharge gaps where the influence of the discharge generated in each discharge cell is small, the row direction (the first direction) is the same as in the first embodiment. Direction) between adjacent discharge cells. Furthermore, the flow path of the sealing gas can be secured not only in the column direction (second direction) but also in the row direction (first direction). Therefore, the improvement of the exhaust efficiency is promoted, and the display quality and reliability are further improved.

The dimension of the opening provided between the non-discharge gaps in the broken-line spacer 22 is arbitrarily designed within a range that does not hinder the flow of the discharge gas and does not deteriorate the discharge characteristics. Obviously, the greater the width of the opening, the higher the exhaust efficiency. However, at the same time, interference between the discharge cells adjacent in the row direction (first direction) increases,
The result is contrary to the object of the invention. FIG. 6 is a plan view showing a part of the second embodiment. FIG. 7 shows the ratio of the width L1 of the broken line spacer to the width L1 of the non-discharge gap on the horizontal axis, and the false lamp voltage margin between adjacent discharge cells in the first direction (hereinafter, the lateral false lamp margin) on the vertical axis. It is expressed.) The erroneous horizontal lamp margin indicates a difference between a voltage at which a discharge selected cell completely completes discharge and a voltage at which a non-selected cell in the first direction starts discharging. In addition, the lateral false lamp voltage margin is preferably 7 V or more. As described above, there is a region in which the lateral erroneous lamp margin sharply decreases as L2 / L1 increases. However, in the range of L2 / L1 ≦ 0.8, a margin of 7 V or more is obtained, and the influence of crosstalk is suppressed. .

Therefore, by setting the spacers formed on the front substrate 10 to be the dashed spacers 22, it is possible to further improve the exhaust efficiency while suppressing interference between adjacent discharge cells. At this time, the opening width L2 of the dashed spacer is preferably in a range of L2 ≦ 0.8L1, and
The range of ≦ 0.7L1 is more preferred.

(Embodiment 3) FIG. 8 is a partially cutaway perspective view of an AC surface discharge type color PDP showing a third embodiment of the present invention. On the rear substrate 11, a grid-like partition 33 (hereinafter, referred to as a ladder-like partition) in which an opening is provided between a pair of row electrodes (between non-discharge gaps) in addition to the grid-like partition shown in the first embodiment. Is formed. The ladder-like partition walls 33 divide the discharge space in units of one pixel, and therefore, similarly to the grid-like partition walls, prevent the movement of charges in the direction along the data electrodes, and discharge cells adjacent in the column direction (second direction). Suppress the effects between
At the same time, the flow path of the discharge gas can be secured also in the row direction (first direction), and the improvement of the exhaust efficiency is promoted.

Further, it is needless to say that the exhaust efficiency can be further improved by combining with the dashed spacer on the front substrate shown in the second embodiment.

The method for manufacturing the spacer and the partition according to the present invention may be, for example, a sand blast method.
For both the front substrate and the rear substrate, a partition material (paste) is applied on one surface of the substrate, a dry film resist (hereinafter, referred to as DFR) is attached, and exposure is performed so as to form a pattern of the spacer and the partition. This is developed, and a partition is formed by sandblasting. In order to secure a flow path for exhaust and discharge gas filling by the combination of the spacer and the partition, each may be formed at the same height over the entire surface.
Therefore, the manufacturing process is the same as that conventionally used, and can be easily realized.

On the other hand, Japanese Unexamined Patent Application Publication No.
In order to realize a structure in which a part of a grid-like partition formed on a rear substrate is lowered as shown in Japanese Patent Application Laid-Open No. H10-260, DFR patterning is repeated a plurality of times to provide an opening, Each time it is necessary to perform patterning in consideration of blast resistance, the manufacturing process becomes complicated and difficult. Further, a structure in which a hole is formed in a part of a partition wall as shown in the publication requires an extremely difficult manufacturing process.

In addition to the sandblasting method, an embedding method of embedding a partition material in a pattern cut DFR, and a cutting method of cutting a partition with a mold can be applied to the manufacturing method of both partition walls.

Here, the spacer on the front substrate according to the present invention is not limited to a band-shaped or broken-line spacer (a spacer having an opening in the band-shaped spacer) formed in the column direction (second direction). Absent. For example, a lattice shape may be used as long as a flow path for exhaust and discharge gas filling can be secured. FIG. 9 is a partial plan view of an AC surface-discharge type color PDP including a grid spacer 23 having an opening and a grid partition 32. In this case, the influence between the discharge cells adjacent in the column direction (second direction) can be more easily suppressed than in the strip-like or broken-line spacer, and the row direction (first direction) can be suppressed.
Can be completely suppressed as in the case of the strip spacer. However, the opening formed in the column direction (second direction) becomes smaller. Further, since the flow path of the sealed gas cannot be secured in the row direction (first direction), it is difficult to improve the exhaust efficiency.

Therefore, a grid-like spacer (ladder-like spacer) having an opening formed between a pair of row electrodes is more effective.
FIG. 10 is a partial plan view of an AC surface discharge type color PDP including the ladder-like spacer 24 and the lattice-like partition 32. FIG. 11 is a partial cross-sectional view of an AC surface discharge type color PDP including a ladder-like spacer and a lattice-like partition. In this case, it is needless to say that the influence between the discharge cells adjacent in the row direction (first direction) and the column direction (second direction) can be easily suppressed by the ladder-like spacers and the lattice-like partition walls. Furthermore, the opening in the row direction (first direction)
By forming the lattice-shaped partition on the rear substrate so as to hang over the discharge cell space defined by the partition, the flow path of the filled gas can be secured in the row direction (first direction) and the column direction (second direction), and the crosstalk is reduced. Improvement and improvement in exhaust efficiency can be effectively realized. When the partition on the rear substrate has a ladder shape, it is needless to say that the same effect can be obtained by forming the spacers on the front substrate in a lattice shape. Further, by combining the ladder-like spacer and the ladder-like partition, the row direction (first
Direction) is increased, and the exhaust efficiency is further improved.

The partition on the rear substrate according to the present invention is not limited to a lattice-like or ladder-like partition. For example, a conventional strip-shaped partition may be used. At this time, it is more effective to combine with the above-described lattice-like or ladder-like spacer than to combine with the band-like or broken-line-like spacer. In this case, since the influence between the discharge cells adjacent in the row direction (first direction) can be suppressed by the grid-like or ladder-like spacers on the front substrate, it is necessary to form a dashed partition having an opening in the strip-shaped partition. It is also possible to improve the exhaust efficiency. However, the influence between the adjacent discharge cells in the extending direction of the data electrode is stronger than that of the grid-like or ladder-like barrier ribs shown in the first to third embodiments of the present invention, and it is difficult to suppress the crosstalk. Further, as disclosed in the related art, various effects such as high luminous efficiency obtained from the lattice-shaped partition cannot be obtained. Therefore, the configuration including the lattice-like or ladder-like partition walls as shown in the first to third embodiments of the present invention has the best balance, and can effectively realize the improvement of the crosstalk and the improvement of the exhaust efficiency. .

Further, the surface discharge electrode according to the present invention is not limited to a strip shape. For example, the shape may be an island shape or a comb shape having high isolation formed for each discharge cell. In this case, since the influence between the discharge cells adjacent in the row direction (first direction) is smaller than that of the band-shaped surface discharge electrode, the opening width of the broken-line spacer shown in the second embodiment may be increased. It is possible. Further, an opening can be formed in the row electrode pair (in the discharge gap). Therefore, the exhaust efficiency is further improved.

The strip-shaped or broken-line spacer formed on the front substrate can be formed in the row direction (first direction). FIG. 12 shows a partial plan view of an AC surface-discharge type color PDP composed of strip spacers in a row direction and girder partition walls. FIG. 13 shows an AC surface-discharge type color PDP composed of dashed spacers in a row direction and grid-like partitions.
FIG. In this case, the area of the opening formed by the strip-shaped or dashed spacers in the row direction (first direction) is the same as that in the column direction (second direction) shown in the first to third embodiments.
Direction) is larger than the area of the opening formed by the band-shaped spacer in the direction (2), so that the exhaust efficiency is easily improved. Further, in the case of the broken-line spacer, since the flow path of the sealed gas is secured also in the column direction (second direction), the exhaust efficiency is further improved.

As described above, if the influence between the discharge cells adjacent in the row direction (first direction) and the column direction (second direction) is suppressed by the surface discharge electrode shape or the like, a point is formed above the partition on the rear substrate. Existing island-shaped spacers can also be formed. For example, island spacers can be formed at the intersections of the grid-like partition walls or between the discharge cells. FIG. 14 and FIG.
FIG. 5 shows a partial plan view of an AC surface discharge type color PDP composed of island-like spacers and lattice-like partition walls. In this case, it is apparent that the opening area secured for the flow path for exhaust and discharge gas filling is increased, and the exhaust efficiency is further improved. In addition, when the island-shaped spacer is formed between the adjacent cells rather than at the intersection of the grid-shaped partition walls, the influence between the discharge cells adjacent in the row direction (first direction) and the column direction (second direction) is easily suppressed. The shape of the island spacer is not particularly limited,
The cross-sectional shape may be any shape such as a square, a rectangle, a polygon, a circle, and a rhombus.

The spacers, partitions, electrode shapes, and the like according to the present invention are not limited to those in the above-described embodiment. Further, the location of the opening is not particularly limited as long as it does not hinder the suppression of crosstalk and the improvement of the exhaust efficiency.

Each of the embodiments described above relates to an AC surface discharge type color PDP in which two row electrodes are paired to form a surface discharge electrode. The present invention can be applied to a PDP or a DC discharge type PDP in which electrodes are exposed in a discharge space.

[0037]

As described above, according to the present invention, the spacers on the front substrate and the partition walls on the rear substrate can suppress the influence between adjacent discharge cells and improve crosstalk. Furthermore, by forming a gap between the front substrate and the partition wall by the spacer, the flow path for exhaust and discharge gas filling is secured while maintaining the effect provided by the grid-like partition wall partitioned into one pixel unit. The exhaust efficiency can be improved. As a result, the distribution of the sealed gas between the discharge cells in the panel can be made uniform. Therefore, effects such as higher definition, higher aperture ratio, higher resolution, higher luminance, and higher luminous efficiency can be obtained, and the display quality and reliability of the PDP can be improved.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of an AC surface discharge type color PDP showing a first embodiment of the present invention.

FIG. 2 is a partial sectional view of an AC surface discharge type color PDP showing a first embodiment of the present invention.

FIG. 3 shows the relationship between the evacuation time and the ultimate vacuum degree in the center of the panel for each ratio of the height of the grid-like partition walls and the height of the strip spacers of the AC surface discharge type color PDP according to the first embodiment of the present invention. FIG.

FIG. 4 is a diagram showing a vertical erroneous lamp voltage margin with respect to a ratio between a grid-like partition wall height and a band-like spacer height of the AC surface discharge type color PDP according to the first embodiment of the present invention.

FIG. 5 is a partially cutaway perspective view of an AC surface discharge type color PDP showing a second embodiment of the present invention.

FIG. 6 is a partial plan view of an AC surface discharge type color PDP showing a second embodiment of the present invention.

FIG. 7 is a diagram illustrating a lateral false lamp voltage margin with respect to a ratio between a non-discharge gap width and an opening width of a dashed spacer in an AC surface discharge type color PDP according to a second embodiment of the present invention. .

FIG. 8 is a partially cutaway perspective view of an AC surface discharge type color PDP showing a third embodiment of the present invention.

FIG. 9 is a partial plan view of an AC surface-discharge type color PDP including a grid-like spacer having an opening and a grid-like partition according to the present invention.

FIG. 10 is a partial plan view of an AC surface discharge type color PDP including a ladder-like spacer and a lattice-like partition according to the present invention.

FIG. 11 is a partial cross-sectional view of an AC surface-discharge type color PDP including a ladder-like spacer and a lattice-like partition according to the present invention.

FIG. 12 is a partial plan view of an AC surface-discharge type color PDP composed of a band-shaped spacer in a row direction and a grid-like partition according to the present invention.

FIG. 13 is a partial plan view of an AC surface-discharge type color PDP including a dashed spacer in a row direction and a grid-like partition according to the present invention.

FIG. 14 is a partial plan view of an AC surface-discharge type color PDP including an island-shaped spacer formed at the intersection of a grid-like partition and a grid-like partition according to the present invention.

FIG. 15 is an AC surface-discharge type color PD according to the present invention comprising an island-like spacer formed between adjacent cells and a grid-like partition;
It is a partial top view of P.

FIG. 16 is a partially cutaway perspective view showing a conventional AC surface discharge type color PDP having a strip-shaped partition wall.

FIG. 17 is a partially cutaway perspective view showing a conventional AC surface-discharge type color PDP having a grid-like partition.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 front substrate 11 rear substrate 12 scan electrode 13 common electrode 14 a, 14 b trace electrode 15 data electrode 16 a, 16 b insulating layer 17 phosphor 21 band spacer 22 dashed spacer 23 lattice spacer 24 ladder spacer 25 island spacer 31 band partition 32 Grid-shaped partition 33 Ladder-shaped partition H1 Grid-shaped partition height H2 Band-shaped spacer height L1 Non-discharge gap width L2 Dashed-line spacer opening width

Claims (15)

[Claims] A first substrate having a plurality of row electrodes, a second substrate having a plurality of column electrodes, a first partition disposed on the first substrate side, A plasma display panel, comprising: a second partition having a shape or arrangement different from that of the first partition, which is disposed between the first partition and the second substrate. 2. The first partition is a partition for forming a discharge space, and the second partition forms a fluid flow path between the first substrate and the second substrate. The plasma display panel according to claim 1, which is a partition wall. 3. The plasma display panel according to claim 1, wherein the first partition is provided in contact with the first substrate, and the second partition is provided in contact with the second substrate. . 4. The plasma display panel according to claim 1, wherein the first partition is a lattice partition or a strip partition. 5. The plasma display panel according to claim 1, wherein the plurality of row electrodes form a pair with two adjacent row electrodes. 6. The plasma display panel according to claim 4, wherein the lattice-shaped partition or the strip-shaped partition of the first partition has an opening. 7. The plurality of row electrodes are paired with two adjacent row electrodes, and an opening of the grid-like partition or the strip-like partition of the first partition is provided between the pair of row electrodes. The plasma display panel according to claim 6, wherein: 8. The method according to claim 1, wherein the plurality of row electrodes form a pair with two adjacent row electrodes, and an opening of the lattice-shaped partition or the strip-shaped partition of the first partition is provided in the row electrode pair. The plasma display panel according to claim 6, characterized in that: 9. The plasma display panel according to claim 2, wherein the second partition is a lattice partition or a strip partition. 10. The plasma display panel according to claim 9, wherein the lattice-shaped partition or the strip-shaped partition of the second partition has an opening. 11. The plurality of row electrodes are paired with two adjacent row electrodes, and an opening of the lattice-shaped partition or the strip-shaped partition of the second partition is provided between the pair of row electrodes. The plasma display panel according to claim 10, wherein: 12. The method according to claim 1, wherein the plurality of row electrodes form a pair with two adjacent row electrodes, and an opening of the lattice-shaped partition or the strip-shaped partition of the second partition is provided in the row electrode pair. The plasma display panel according to claim 10, characterized in that: 13. The ratio of the height H1 of the grid-shaped or strip-shaped partition of the first partition to the height H2 of the grid-shaped or strip-shaped partition of the second partition is 0.2H1 ≦ H2 ≦
The plasma display panel according to any one of claims 2 to 12, wherein the plasma display panel is 0.8H1. 14. The ratio between the row electrode pair width L1 and the opening width L2 of the grid-shaped partition or the strip-shaped partition of the second partition is L2 ≦ 0.8L1. 2
14. The plasma display panel according to any one of items 13 to 13. 15. The method according to claim 2, wherein the second partition is provided above the lattice-shaped partition or the strip-shaped partition of the first partition so as to be scattered in an island shape.
The plasma display panel according to any one of the above items.