JP2003031131A - Plasma display panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plane discharge type alternating current plasma display panel enabled to stabilize address discharging property at every discharging cells, and enabled to improve light emission efficiency. SOLUTION: Transparent electrodes Xa and Ya of a row electrode X and a row electrode Y composing a pair of row electrodes (X, Y) are made to face each other interposing a concave part 11a. Respective discharging cells are divided by partitioning the periphery of the discharging cells by separation walls 15. The discharging cell is divided into a display discharge cell C1, making a maintenance discharge generate between itself and the transparent electrodes Xa, Ya of paired row electrodes X, Y, which are facing the display charging cell, and an address discharge cell C2, facing a bus electrode Yb of a row electrode Y, making an address discharge generate between the bus electrode Yb and a line electrode D, by a second lateral wall 15B. A gap r, making the address discharge cell C2 communicate with the display discharge cell C1, is formed between the display discharge cell C1 and the address discharge cell C2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel structure of a surface discharge type AC type plasma display panel.

[0002]

In recent years, a surface discharge type AC type plasma display panel has been attracting attention as a large and thin color screen display device, and is being spread to homes and the like.

12 to 14 are drawings schematically showing a conventional structure of the surface discharge type AC plasma display panel, and FIG. 12 is a front view of the conventional surface discharge type AC plasma display panel, 13 is a sectional view taken along line VV of FIG. 12, and FIG. 14 is a sectional view taken along line WW of FIG.

12 to 14, a plurality of row electrode pairs (X ', Y') are formed on the back surface of the front glass substrate 1 which is the display surface of a plasma display panel (hereinafter referred to as PDP). A dielectric layer 2 that covers the row electrode pair (X ′, Y ′) and a protective layer 3 made of MgO that covers the back surface of the dielectric layer 2 are sequentially provided.

Each of the row electrodes X'and Y'is a transparent electrode Xa 'or Y made of a transparent conductive film such as wide ITO.
a ', and bus electrodes Xb', Yb 'made of a metal film having a narrow width to supplement its conductivity.

The row electrodes X'and Y'are alternately arranged in the column direction so as to face each other across the discharge gap g ', and each row electrode pair (X', Y ') forms a matrix display. One display line (row) L is configured.

On the other hand, the discharge space S'where the discharge gas is enclosed.
Rear glass substrate 4 facing front glass substrate 1 through
A plurality of column electrodes D'arranged so as to extend in a direction orthogonal to the row electrode pairs X ', Y', and strip-shaped partition walls 5 formed so as to extend in parallel between the column electrodes D '.
And a phosphor layer 6 formed of a red (R), green (G), and blue (B) fluorescent material respectively covering the side surface of the partition wall 5 and the column electrode D ′.

In each display line L, the discharge space S'is divided by the partition wall 5 at each intersection of the column electrode D'and the row electrode pair (X ', Y'), so that the unit light emission is achieved. A discharge cell C'that is a region is formed.

The image formation in the above-mentioned surface discharge type AC PDP is performed as follows.

That is, in the address period after the reset period for performing the reset discharge, one row electrode (row electrode Y ′ in this example) and column of the row electrode pair (X ′, Y ′) in each discharge cell C ′. An address discharge is selectively generated between the electrodes D ′, and the address discharge causes discharge cells (discharge cells in which wall charges are formed in the dielectric layer 2) and non-light-emission cells (walls in the dielectric layer 2). Discharge cells in which no charge is formed) are distributed on the panel surface corresponding to the image to be displayed.

After this address period, the row electrodes X'and Y'of each row electrode pair are simultaneously displayed on all the display lines L.
A sustaining pulse is alternately applied to the sustaining pulse, and each time the sustaining pulse is applied, the sustaining discharge is caused between the row electrodes X ′ and Y ′ by the wall charges formed on the dielectric layer 2 in the light emitting cell. (Sustain discharge) is generated.

As a result, ultraviolet rays are generated from the xenon gas contained in the discharge gas by the sustain discharge in the light emitting cell, and the ultraviolet rays generate red (R), green (G) and blue (B) in each discharge cell C '. A display image is formed by exciting each of the phosphor layers 6 to emit light.

In such a conventional three-electrode surface-discharge type AC PDP, the xenon gas content in the discharge gas filled in the discharge space S'is increased to, for example, 10% or more, so that the PDP emits light. Increasing efficiency is being done.

However, if the content ratio of the xenon gas contained in the discharge gas is increased in this way, the driving voltage for the address discharge and the sustain discharge also rises, and the power consumption of the PDP increases. ing.

The present invention has been made in order to solve the problems in the conventional surface discharge type AC type plasma display panel as described above.

That is, an object of the present invention is to provide a surface discharge type AC type plasma display panel capable of increasing the luminous efficiency and reducing the driving voltage of the address discharge and the sustain discharge. There is.

[0017]

The plasma display panel according to the first aspect of the present invention achieves the above object.
On the back side of the front substrate, a plurality of row electrode pairs that extend in the row direction and are arranged in parallel in the column direction to form display lines, respectively, and a dielectric layer that covers the row electrode pairs are provided. A plasma display panel provided with a plurality of column electrodes extending in a column direction, arranged in parallel in a row direction, and arranged in a row direction so as to intersect with a row electrode pair, and each of which constitutes a unit light emitting region in the discharge space. In, the portions of the row electrodes forming the row electrode pair for discharging are opposed to each other with a space therebetween, and the periphery of each unit light emitting region is partitioned by partition walls, and the unit light emission is performed. A first discharge region in which a region is opposed by a partition wall to portions of the row electrodes forming a row electrode pair that face each other through the space, and discharge is performed through the space between the row electrodes. , A second discharge region in which a discharge is performed between a part of the row electrode and the column electrode so as to face a part of one row electrode that discharges between the column electrode and the second electrode. It is characterized in that a communication portion for communicating the second discharge region with the first discharge region is provided between the first discharge region and the second discharge region.

In the plasma display panel according to the first aspect of the present invention, during image formation, the discharge (address discharge) between the column electrode and one of the row electrodes forming the row electrode pair is within the unit light emitting region. Is generated in the second discharge region (address discharge cell) formed by being partitioned by the partition wall, and the discharge in the second discharge region is provided between the second discharge region and the first discharge region. The first discharge region (light-emitting cell) in which the wall charge is formed and the first discharge region (non-light-emitting cell) in which the wall charge is not formed are spread by being transmitted through the communication portion and spreading in the first discharge region. , Are distributed on the panel surface corresponding to the image to be formed.

Then, after that, in the first discharge region (light emitting cell) where the wall charges are formed, between the portions of the row electrodes forming the row electrode pair facing each other, the space formed between them is formed. A discharge (sustaining discharge) is generated through the sustaining discharge, and the ultraviolet rays generated by this sustaining discharge are color-coded into three primary colors of red (R), green (G), and blue (B) formed in the first discharge region. An image corresponding to a video signal is formed on the panel surface by exciting the phosphor layer to emit light.

According to the first aspect of the invention, the sustain discharge generated between the portions of the row electrodes forming the row electrode pair facing each other is generated in the space formed between the portions of the row electrodes facing each other. Since the distance between the lines of electric force passing through the dielectric layer during the sustain discharge is shortened and the electric field strength thereof is increased as compared with the conventional one, the luminous efficiency of the sustain discharge is improved. Even if the content of the xenon gas in the discharge gas is increased in order to increase it, the sustain discharge can be generated with a low driving voltage.

A row electrode is provided between the column electrode and one row electrode of the row electrode pair for distributing the unit emission area in which the wall charge is formed and the unit emission area in which the wall charge is not formed on the panel surface. The address discharge is performed in the second discharge region formed separately from the first discharge region in which the sustain discharge is generated between the row electrodes forming the row electrode pair for light emission after the discharge. By doing so, even if the discharge space is enlarged to increase the luminous efficiency in the first discharge region and the distance between the row electrode and the column electrode is widened,
It becomes possible to arrange the column electrode in the second discharge region closer to the row electrode than in the first discharge region to reduce the driving voltage for discharge between the column electrode and the row electrode. Therefore, even when the xenon gas content in the discharge gas is increased to improve the luminous efficiency, the driving voltage in the address discharge can be reduced separately from the sustain discharge.

Since the second discharge region for address discharge is formed separately from the first discharge region for sustain discharge, it is not necessary to form a phosphor layer which emits light by discharge in the second discharge region. Therefore, the address discharge
It is not affected by the color of the fluorescent material forming the phosphor layer and the variation in the thickness of the phosphor layer, which makes it possible to stabilize the discharge characteristics between the column electrodes and the row electrodes. become.

In order to achieve the above object, in the plasma display panel according to the second invention, in addition to the structure of the first invention, the space portion discharges between the row electrodes of the dielectric layer. It is characterized in that it is constituted by a concave portion formed in a portion located between the performing portions.

According to the plasma display panel of the second aspect of the present invention, the concave portion is formed in the portion of the dielectric layer located between the portions of the row electrode pair where the row electrode performs the sustain discharge, and the space in the concave portion is formed. The portion is interposed between the portions of the row electrodes that perform the sustain discharge facing each other.

In the plasma display panel according to the third invention, in order to achieve the above object, in addition to the structure of the second invention, the recess is formed in an island shape for each of the first discharge regions. Is characterized by.

According to the plasma display panel of the third aspect of the present invention, the recessed portion interposed between the portions of the row electrodes of the row electrode pair for performing the sustain discharge has a circular or circular shape for each first discharge area. It is formed in the shape of a rectangular island.

In order to achieve the above-mentioned object, in the plasma display panel according to the fourth aspect of the present invention, in addition to the configuration of the second aspect of the present invention, the recesses extend along the row direction and are adjacent to each other in the row direction. It is characterized in that it is formed in a continuous strip shape between the discharge regions.

According to the plasma display panel of the fourth aspect of the present invention, the recessed portion interposed between the portions of the row electrodes of the row electrode pair for performing the sustain discharge has a strip shape extending in the row direction. However, they are formed in a state of being bridged between the first discharge regions adjacent to each other in the row direction.

In order to achieve the above-mentioned object, the plasma display panel according to the fifth aspect of the present invention has, in addition to the configuration of the first aspect of the present invention, a portion that discharges between the row electrodes forming the row electrode pair. It is characterized in that they face each other across the space.

According to the plasma display panel of the fifth aspect of the present invention, the portion of the row electrodes of the row electrode that performs the sustain discharge is parallel to the respective front substrates, and is located on the front substrate side or the back surface side. They are opposed to each other in a face-to-face manner, for example, by a method in which the substrate is bent into a curved shape.

As a result, the discharge distance through which the electric lines of force of the sustain discharge pass is shortened and the electric field thereof is shortened, as compared with the conventional case where the sustain discharge is performed at the portions where the tips of the row electrodes abut each other. Since the strength is increased, even if the content ratio of the xenon gas contained in the discharge gas is increased, the driving voltage required for the sustain discharge can be further suppressed.

In order to achieve the above object, a plasma display panel according to a sixth aspect of the present invention has, in addition to the structure of the first aspect, an electrode body in which the row electrodes forming the row electrode pair extend in the row direction. And a transparent electrode portion facing each other through a discharge gap between the other row electrode protruding in the column direction for each unit light emitting region and forming a pair from the electrode main body portion, At least one of the electrode body portions of the row electrodes is opposed to the second discharge area, and the discharge is performed in the second discharge area between the electrode body portion and the column electrode.

According to the plasma display panel of the sixth aspect of the present invention, the electrode main body portion forming the row electrode extending in the row direction and the transparent electrode portion connected to the electrode main body portion for each unit light emitting region are arranged in columns. The electrode main body of the row electrode that discharges between the electrodes is arranged at a position facing the second discharge area, and the address discharge is performed in the second discharge area between the electrode main body and the column electrode. .

In the plasma display panel according to the seventh invention, in order to achieve the above object, in addition to the configuration of the first invention, the row electrodes forming the row electrode pair each have an electrode body extending in the row direction. And a transparent electrode portion that opposes each other through a discharge gap between the electrode main body portion and the other row electrode that is paired and protrudes in the column direction for each unit light emitting region. The transparent electrode portion has an extension portion extending from the electrode body portion in a direction opposite to the transparent electrode portion side of the other row electrode paired with each other, and the transparent electrode of at least one row electrode is provided in the second discharge region. The extended portions of the portions are opposed to each other, and a discharge is generated in the second discharge region between the extended portion of the transparent electrode portion and the column electrode.

According to the plasma display panel of the seventh aspect of the present invention, the transparent electrode portion, which is connected to the electrode body portion extending in the row direction for each unit light emitting region and constitutes a row electrode together with the electrode body portion, has the electrode body. An extension extending in the direction opposite to the direction of the transparent electrode of the other row electrode paired with is formed in the connection portion with the portion, and the extension of the transparent electrode faces the second discharge region. The address discharge in the second discharge region is performed between the column electrode and the column electrode.

In order to achieve the above-mentioned object, the plasma display panel according to the eighth invention has, in addition to the structure of the first invention, a second discharge region in a portion of the dielectric layer facing the second discharge region. It is characterized in that a raised portion that is formed so as to project inward and abuts on the partition wall that defines the unit light emitting region and that closes between the adjacent unit light emitting region and the second discharge region is formed.

According to the plasma display panel of the eighth aspect of the present invention, the second dielectric layer covering the row electrode pair is provided.
The raised portion formed in the portion facing the discharge region is formed in the unit light emitting region by being in contact with the partition wall that surrounds the unit light emitting region and partitions from another unit light emitting region adjacent to the unit light emitting region. The second discharge region and another adjacent unit light emitting region are shielded from each other, so that the discharge between the column electrode and the row electrode in the second discharge region is connected to the first unit light emitting region in the same unit light emitting region through the communicating portion. It spreads only in one discharge area.

In order to achieve the above-mentioned object, the plasma display panel according to the ninth aspect of the present invention has, in addition to the structure of the first aspect, a black or dark color in a portion facing the second discharge region on the front substrate side. It is characterized in that a light absorption layer is provided.

According to the plasma display panel of the ninth aspect, the front substrate side of the second discharge region, that is, the display side face of the second discharge region is entirely covered with the black or dark light absorbing layer. As a result, due to the light absorption layer, the light emission due to the discharge between the column electrode and the row electrode in the second discharge region leaks to the display surface of the panel and adversely affects the image formed on the display surface of the panel. In addition to being prevented, the reflection of external light incident on the portion of the display surface of the panel facing the second discharge region is prevented, and the contrast of the image is not adversely affected.

In the plasma display panel according to the tenth invention, in order to achieve the above object, in addition to the configuration of the ninth invention, the row electrodes forming the row electrode pairs respectively extend in the row direction. And a transparent electrode portion that opposes each other via a discharge gap between the other row electrode that protrudes in the column direction from each of the electrode main body portions and is paired in the column direction. At least one of the electrode body portions of the row electrodes faces the two discharge regions, and discharge is performed in the second discharge region between the electrode body portions and the column electrodes, and the light absorption layer is the electrode of the row electrode. It is characterized in that it is composed of a black or dark layer of the main body and a black or dark layer formed in a portion facing the second discharge region on the front substrate side.

According to the plasma display panel of the tenth aspect of the present invention, the column of the electrode main body which constitutes the row electrode and extends in the row direction, and the transparent electrode section which is connected to the electrode main body for each unit light emitting region are arranged in columns. The electrode main body of the row electrode that discharges between the electrodes is arranged at a position facing the second discharge region, and the discharge is performed in the second discharge region between the electrode main body and the column electrode.

The electrode body of the row electrode facing the second discharge region is formed of a black or dark layer, or a part of the electrode body is formed of a black or dark layer. The portion of the portion facing the second discharge region other than the portion where the electrode main body portion of the row electrode is disposed is also covered with the black or dark layer, so that the address between the column electrode and the row electrode in the second discharge region is increased. It is prevented that the light emission due to the discharge leaks to the display surface of the panel and adversely affects the image formed on the display surface of the panel, and is further incident on the portion of the display surface of the panel facing the second discharge region. The reflection of external light is prevented, and there is no risk of adversely affecting the contrast of the image.

In order to achieve the above-mentioned object, the plasma display panel according to the eleventh invention has, in addition to the structure of the ninth invention, a second discharge region in a portion of the dielectric layer facing the second discharge region. By contacting the partition wall formed so as to project to the side and partitioning the unit light emitting region, a raised portion that closes between the adjacent unit light emitting region and the second discharge region is formed, and the raised portion has a black or dark color. It is characterized in that the light absorption layer is constituted by being formed of a material.

According to the plasma display panel of the eleventh aspect of the present invention, the raised portion formed in the portion of the dielectric layer covering the row electrode pairs facing the second discharge region surrounds the unit light emitting region. By abutting against the partition wall that separates from another adjacent unit light emitting area, the gap between the second discharge area formed in the unit light emitting area and another adjacent unit light emitting area is shielded. The discharge between the column electrode and the row electrode in the second discharge region spreads only to the first discharge region in the same unit light emitting region through the communicating portion, and the raised portion is formed of a black or dark material. By configuring the light absorption layer, the light emission due to the discharge between the column electrode and the row electrode in the second discharge region leaks to the display surface of the panel and adversely affects the image formed on the display surface of the panel. While being prevented from giving a sound, further, the reflection of external light incident on the portion facing the second discharge region of the display surface of the panel is prevented, a fear is eliminated that adversely affected the contrast of the image.

In order to achieve the above-mentioned object, the plasma display panel according to the twelfth aspect of the invention has, in addition to the structure of the first aspect of the invention, a phosphor layer that emits light by discharge only in the first discharge region. It is characterized by being.

According to the twelfth aspect of the plasma display panel, since the phosphor layer that emits light by discharge is not formed in the second discharge region where the address discharge is performed between the column electrodes and the row electrodes, The address discharge in the second discharge region is not affected by the difference in discharge characteristics due to the fluorescent materials of the three primary colors forming the phosphor layer and the variation in the thickness of the phosphor layer. It is possible to stabilize the discharge characteristics of the address discharge in the second discharge region.

In order to achieve the above-mentioned object, a plasma display panel according to a thirteenth invention has, in addition to the structure of the first invention, a rear substrate and a row in a portion facing the second discharge region on the rear substrate side. A protrusion is formed between the electrode and the second substrate so as to project toward the front substrate in the second discharge region. The protrusion extends a portion of the column electrode facing the second discharge region toward the front substrate. It is characterized by

According to the plasma display panel of the thirteenth invention, the column electrode approaches the row electrode from the rear substrate by the protrusion formed between the rear substrate and the column electrode in the second discharge region. And the discharge distance between the column electrode and the row electrode is smaller than the distance between the column electrode and the row electrode in the first discharge region, so that the discharge space in the first discharge region is reduced. It is possible to shorten the discharge distance between the column electrode and the row electrode in the second discharge region while keeping the value set large, and to reduce the discharge start voltage.

In the plasma display panel according to the fourteenth invention, in order to achieve the above object, in addition to the structure of the first invention, a priming particle generating layer is provided in the second discharge region of the unit light emitting region. It is characterized by

According to the plasma display panel of the fourteenth aspect of the present invention, the wall charges generated in the first discharge area are formed before the address discharge between the column electrode and the row electrode in the second discharge area (or. The ultraviolet light emitted from xenon contained in the discharge gas by the reset discharge excites the priming particle generation layer formed in the second discharge region to emit ultraviolet light, and this ultraviolet light causes the dielectric layer to pass through. Since the priming particles are emitted by exciting the protective layer and the like covering the priming particles, the afterglow characteristic of the priming particle generation layer causes the first discharge necessary for generating the address discharge during the address discharge in the second discharge region. A sufficient amount of priming particles is ensured in the two-discharge region, which allows priming with the passage of time after reset discharge. Generating generation and discharge delay of the erroneous discharge caused by reduction in molecular weight is prevented.

In order to achieve the above-mentioned object, in the plasma display panel according to the fifteenth invention, in addition to the structure of the fourteenth invention, the priming particle forming layer is excited by ultraviolet rays having a predetermined wavelength to emit ultraviolet rays. It is characterized in that it is formed of an ultraviolet light emitting material having an afterglow characteristic which continues to emit.

According to the plasma display panel of the fifteenth invention, the address discharge between the column electrode and the row electrode in the second discharge region is caused by the afterglow characteristic of the ultraviolet light emitting material forming the priming particle forming layer. When this is performed, the decrease in the amount of priming particles due to the passage of time is prevented, and the occurrence of erroneous discharge and the occurrence of discharge delay accompanying the decrease in the amount of priming particles are prevented.

In the plasma display panel according to the sixteenth invention, in order to achieve the above object, in addition to the structure of the fifteenth invention, the ultraviolet light emitting material contains 0.1 msec.
It is characterized by having the above-mentioned afterglow characteristics.

According to the plasma display panel of the sixteenth aspect of the present invention, the address discharge between the column electrodes and the row electrodes in the second discharge region is caused by the afterglow characteristic of the ultraviolet light emitting material forming the priming particle forming layer. When this is performed, the decrease in the amount of priming particles due to the passage of time is prevented, and since the afterglow characteristic continues for 0.1 msec or more, the occurrence of erroneous discharge and the occurrence of discharge delay due to the decrease in the amount of priming particles. Is sufficiently prevented.

In order to achieve the above object, in the plasma display panel according to the 17th invention, in addition to the structure of the 15th invention, the ultraviolet light emitting material has an afterglow characteristic of 1 msec or more. It has a feature.

According to the plasma display panel of the seventeenth aspect of the invention, the address discharge between the column electrodes and the row electrodes in the second discharge region is caused by the afterglow characteristic of the ultraviolet light emitting material forming the priming particle forming layer. When performed, the amount of priming particles is prevented from decreasing with the passage of time, and since the afterglow characteristic continues for 1 msec or more, the necessary amount of priming particles is secured during the period during which the address discharge is performed. The occurrence of erroneous discharge and the occurrence of discharge delay due to the decrease in the amount of priming particles can be more sufficiently prevented.

In the plasma display panel according to the eighteenth invention, in addition to the structure of the fifteenth invention, the priming particle forming layer contains a material having a work function of 4.2 eV or less in order to achieve the above object. It is characterized by

According to the plasma display panel of the eighteenth aspect of the present invention, the work function contained in the priming particle generation layer is 4.2 eV or less due to the afterglow characteristics of the ultraviolet light emitting material forming the priming particle generation layer. Since the material (high γ material) is excited and the emission of priming particles is continued, when the address discharge between the column electrode and the row electrode in the second discharge region is performed, the amount of priming particles can be The decrease is prevented and the amount of priming particles required for the address discharge is secured, and the occurrence of erroneous discharge and the occurrence of discharge delay due to the decrease in the amount of priming particles are prevented.

In order to achieve the above-mentioned object, a plasma display panel according to a nineteenth aspect of the present invention has, in addition to the structure of the first aspect, a rear substrate side portion in the second discharge region,
It is characterized in that a dielectric layer formed of a material having a relative dielectric constant of 50 or more is provided in a state of being interposed between a column electrode and a portion of a row electrode which discharges between the column electrode. There is.

According to the plasma display panel of the nineteenth aspect of the present invention, the second dielectric layer formed in the second discharge region is formed of a material having a relative dielectric constant of 50 or more.
The apparent discharge distance between the column electrode and the row electrode in the discharge region is shortened, which reduces the starting voltage of the address discharge.

In order to achieve the above-mentioned object, the plasma display panel according to the twentieth invention is, in addition to the structure of the first invention, a partition in which the communication section partitions the first discharge area and the second discharge area. It is characterized in that it is constituted by a gap with the front substrate side which is formed by the height of the wall being lower than the height of the partition wall which partitions the periphery of each unit light emitting region.

According to the plasma display panel of the twentieth aspect of the present invention, the partition wall that defines the periphery of the unit light emitting region is brought into contact with a portion such as the dielectric layer on the front substrate side so that the unit light emitting region is adjacent to the unit light emitting region. Even when it is shielded, the communication portion is formed by the gap between the partition wall that divides the first discharge region and the second discharge region, which is lower than the height of the partition wall, and the portion such as the dielectric layer on the front substrate side. Discharges formed in the second discharge region spread into the first discharge region through the communicating portion.

In order to achieve the above object, in the plasma display panel according to the twenty-first invention, in addition to the configuration of the first invention, the communication section divides the first discharge area and the second discharge area from each other. It is characterized in that the groove is formed in the wall and both ends thereof are opened to the first discharge region and the second discharge region.

According to the plasma display panel of the twenty-first aspect of the present invention, the partition wall that surrounds the unit light emitting region is brought into contact with a portion such as the dielectric layer on the front substrate side so that the unit light emitting region is adjacent to the unit light emitting region. Even when it is shielded, the second portion is formed by the communication portion formed by the groove portion formed in the partition wall that partitions the first discharge region and the second discharge region.
The discharge region communicates with the first discharge region, and the discharge in the second discharge region spreads into the first discharge region via this communicating portion.

In order to achieve the above object, the plasma display panel according to the twenty-second aspect of the present invention has, in addition to the structure of the first aspect, a second discharge region in a portion of the dielectric layer facing the second discharge region. A raised portion that is formed so as to project to the side and that abuts the partition wall that defines the unit light emitting region and that closes between the adjacent unit light emitting region and the second discharge region is formed, and the communication portion serves as the raised portion. It is characterized by being formed.

According to the plasma display panel of the twenty-second aspect of the present invention, the raised portion formed on the dielectric layer so as to project toward the rear substrate side has the barrier ribs and the first discharge area which partition the periphery of the unit light emitting area. The second discharge region is communicated with the first discharge region by the communication portion formed in the raised portion when it is in contact with the partition wall that separates from the second discharge region, and the second discharge region is communicated with the first discharge region through the communication portion. The discharge in the second discharge area spreads in the first discharge area.

In order to achieve the above-mentioned object, the plasma display panel according to the twenty-third aspect of the invention is characterized in that, in addition to the constitution of the first aspect of the invention, a discharge gas sealed in the discharge space is
It is characterized by being a mixed rare gas containing 10% or more of xenon gas.

According to the plasma display panel of the twenty-third aspect of the present invention, the mixed rare gas containing 10% or more of xenon gas is filled as a discharge gas in the discharge space between the front substrate and the rear substrate, so that the unit The luminous efficiency of the sustain discharge and the address discharge, which are respectively performed in the first discharge region and the second discharge region of the light emitting region, is improved, and the sustain discharge and the address discharge are separated from each other in the unit light emitting region. Since it is performed in the first discharge region and the second discharge region, the first discharge region and the second discharge region can be provided with individual configurations corresponding to the properties of the sustain discharge and the address discharge, and thus, the sustain discharge can be performed. It is possible to increase the luminous efficiency of the address discharge and decrease the driving voltage of each of them at the same time. To become.

[0069]

BEST MODE FOR CARRYING OUT THE INVENTION The most preferred embodiment of the present invention will be described below in detail with reference to the drawings.

FIGS. 1 to 3 are drawings schematically showing a first example of an embodiment of a plasma display panel (hereinafter referred to as PDP) according to the present invention, and FIG.
2 is a front view showing a part of the cell structure of the PDP in the example of FIG. 2, FIG. 2 is a sectional view taken along line V1-V1 of FIG. 1, and FIG. 3 is a perspective view of the same example.

The PDP shown in FIGS. 1 to 3 has a dielectric layer 11 on the back surface of the front glass substrate 10 which is the display surface.
In this dielectric layer 11, a plurality of row electrode pairs (X, Y) are arranged in parallel so as to extend in the row direction of the front glass substrate 10 (left-right direction in FIG. 1).

This dielectric layer 11 is used for the front glass substrate 10.
And a row electrode pair (X, Y) on the back side of the intermediate layer 11A. The intermediate layer 11A is formed on one side of the intermediate layer 11A and the outer layer 11B of the intermediate layer 11A is formed on the opposite side of the front glass substrate 10. After being formed, by forming the outer layer 11B so as to cover the row electrode pair (X, Y),
Row electrode pairs (X, Y) are arranged in the dielectric layer 11.

The row electrodes X are made of a transparent conductive film such as ITO formed in a T shape by a wide tip portion Xa1 and a narrow base portion Xa2, and extend in the column direction in parallel with the front glass substrate 10. Xa and a black bus electrode Xb made of a metal film extending in the row direction of the front glass substrate 10 and connected to the base end portion of the transparent electrode Xa having a small width.

Similarly, the row electrode Y is formed in a T-shape by a wide tip portion Ya1 and a narrow base portion Ya2.
A transparent electrode Ya made of a transparent conductive film such as TO and extending in the column direction in parallel with the front glass substrate 10, and the front glass substrate 10.
Of the black bus electrode Yb which is formed of a metal film and is connected to the base end portion of the transparent electrode Ya having a small width.

The row electrodes X and Y are used for the front glass substrate 10.
Column direction (vertical direction in FIG. 1 and horizontal direction in FIG. 2)
And the transparent electrodes Xa and Ya arranged in parallel at equal intervals along the bus electrodes Xb and Yb, respectively.
The transparent electrode Xa extends to the row electrode side of the partner to be paired with each other.
The leading end portions Xa1 and Ya1 of the and Ya are opposed to each other via a discharge gap g having a required width.

The tip portions Xa1 and Ya1 of the transparent electrodes Xa and Ya of the row electrodes X and Y are bent toward the front glass substrate 10 side with respect to the base portions Xa2 and Ya2 extending in parallel with the front glass substrate 10. Then, as you can see from Figure 2,
The surfaces of the base end portions Xa2, Ya2 that are continuous with the back surface side face each other at an angle that is substantially parallel.

Then, the transparent electrodes Xa facing each other are provided.
A concave portion 11a is formed in the dielectric layer 11 located between the tip portions Xa1 and Ya1 of the transparent electrodes Xa and Ya.
A space defined by the concave portion 11a is interposed between the tip portions Xa1 and Ya1 of Ya and Ya.

A display line L extending in the row direction is formed for each row electrode pair (X, Y).

On the rear surface side of the dielectric layer 11, the adjacent bus electrodes Xb and Y of the row electrode pair (X, Y) adjacent to each other are provided.
The raised dielectric layer 12 protruding from the dielectric layer 11 toward the back surface side (downward in FIG. 2) is located at a position facing a predetermined range of region including b, which will be described later.
It is formed so as to extend in a direction parallel to b and Yb.

The raised dielectric layer 12 is a light absorption layer containing a black or dark pigment.

The back surfaces of the dielectric layer 11 and the raised dielectric layer 11A are covered with a protective layer (not shown) made of MgO.

On the display side surface of the rear glass substrate 13 arranged in parallel with the front glass substrate 10 via the discharge space, a plurality of column electrodes D are arranged in pairs of each row electrode (X, Y). Are arranged in parallel at predetermined intervals so as to extend in a direction (column direction) orthogonal to the bus electrodes Xb and Yb at positions respectively facing the transparent electrodes Xa and Ya.

A white column electrode protective layer (dielectric layer) 14 for covering the column electrodes D is further formed on the display side surface of the rear glass substrate 13, and on the column electrode protective layer 14, A partition wall 15 having a shape as described in detail below is formed.

That is, when viewed from the front glass substrate 10 side, the partition walls 15 extend in the row direction along the side portions of the row electrodes Y forming the pair of bus electrodes Xb of the row electrodes X on the bus electrode Yb side. A first horizontal wall 15A extending in parallel with the first horizontal wall 15A along a side portion of the row electrode X forming a pair of the bus electrode Yb of each row electrode Y on the bus electrode Xb side. Two horizontal walls 15B and vertical walls 15C extending in the column direction at positions between the transparent electrodes Xa and Ya arranged at equal intervals along the bus electrodes Xb and Yb of the row electrodes X and Y, respectively. .

The first horizontal wall 15A and the vertical wall 15C
Is set to be equal to the distance between the protective layer that covers the back surface side of the raised dielectric layer 12 and the column electrode protective layer 14 that covers the column electrode D, and the second horizontal wall 15B
Is set so that the height thereof is slightly smaller than the height of the first horizontal wall 15A and the vertical wall 15C, and the front side surface (upper surface in FIG. 1) of the first horizontal wall 15A,
The surface of the vertical wall 15C in the portion between the first horizontal wall 15A and the second horizontal wall 15B is in contact with the back surface side of the protective layer covering the raised dielectric layer 12, but the second horizontal wall 15B
Is not in contact with the back surface side of the protective layer covering the raised dielectric layer 12, and the front surface and the raised dielectric layer 12 are not in contact with each other.
A gap r is formed between each of them and the protective layer that covers them.

By the first horizontal wall 15A, the second horizontal wall 15B, and the vertical wall 15C of the partition wall 15, the discharge spaces between the front glass substrate 10 and the rear glass substrate 13 are opposed to each other and form a pair of transparent electrodes. The display discharge cells C1 are formed by being divided into regions facing Xa and Ya, and are located back to back between adjacent row electrode pairs (X, Y) sandwiched by the first horizontal wall 15A and the second horizontal wall 15B. A space of a portion facing the bus electrodes Xb and Yb is partitioned by the vertical wall 15C, so that the display discharge cell C is formed.
1 and the address discharge cells C2 that are alternately arranged in the column direction are formed.

The display discharge cells C1 and the address discharge cells C2, which are adjacent to each other with the second lateral wall 15B interposed therebetween in the column direction, are protective layers that cover the front surface of the second lateral wall 15B and the raised dielectric layer 12. And are communicated with each other through a gap r formed between them.

The first horizontal wall 15A and the second horizontal wall 15B of the partition wall 15 facing the discharge space of each display discharge cell C1, the vertical wall 1
A phosphor layer 16 is formed on each side surface of 5C and on the surface of the column electrode protection layer 14 so as to cover all of these five surfaces. The color of the phosphor layer 16 is different for each display discharge cell C1. The red (R), green (G), and blue (B) colors are arranged in order in the row direction.

On the surface of the rear glass substrate 13 facing each address discharge cell C2, a projection which is lower than the second lateral wall 15B and protrudes from the display side surface of the rear glass substrate 13 into the address discharge cell C2. The rib 17 is formed to extend in a strip shape along the row direction.

As a result, the column electrode D in the portion facing each address discharge cell C2 and the column electrode protective layer 14 covering this column electrode D are lifted from the rear glass substrate 13 by the protruding ribs 17 to cause the address. The bus electrode Xb facing the address discharge cell C2 is larger than the interval s1 between the column electrodes D and the transparent electrodes Xa, Ya which are projected in the discharge cell C2 and face the display discharge cell C1. The distance s2 from Yb is smaller.

The protruding ribs 17 may be formed of the same dielectric material as the column electrode protective layer 14, or the projections and depressions may be formed on the rear glass substrate 13 by a method such as sandblasting or wet etching. You may comprise by.

Each display discharge cell C1 and address discharge cell C2 is filled with a discharge gas of a mixed rare gas containing 10% or more of xenon gas.

The image formation on this PDP is performed as follows. That is, first, in all the display discharge cells C1, wall charges are formed on the surface of the dielectric layer 11 by the reset discharge in the reset period.

In the address period subsequent to the reset period, the operation pulse is applied to the row electrode Y and the data pulse is applied to the column electrode D.

At this time, an address discharge is generated between the row electrode Y to which the operation pulse is applied and the column electrode D to which the data pulse is applied, at the intersection thereof. At this time, the address discharge is made to occur via the address discharge cell C2. Since the distance s2 between the bus electrode Yb of the row electrode Y and the column electrode D is smaller than the distance s1 between the transparent electrode Ya of the row electrode Y and the column electrode D facing each other through the display discharge cell C1, this address The discharge is generated by the protrusion rib 17 for the address discharge cell C2.
It mainly occurs between the column electrode D and the bus electrode Yb of the row electrode Y of the portion protruding inward.

Then, the charged particles generated by the address discharge in the address discharge cell C2 pass through the gap r between the second horizontal wall 15B and the raised dielectric layer 12 and are adjacent to each other with the second horizontal wall 15B interposed therebetween. The wall charges formed on the dielectric layer 11 in the portion facing the display discharge cell C1 are erased by being introduced into the display discharge cell C1 in which the light emitting cell is emitted. (Display discharge cell C in which wall charges are formed in the dielectric layer 11
1) and non-light emitting cells (display discharge cells C1 in which wall charges are not formed in the dielectric layer 11) are distributed on the panel surface corresponding to the image to be displayed.

After the address period, in the sustain emission period, the row electrode pairs (X,
Y) is alternately applied with a sustaining pulse, and each time the sustaining pulse is applied, a sustaining discharge is generated between the transparent electrodes Xa and Ya facing each other in each light emitting cell. The red (R), green (G), and blue (B) phosphor layers 16 facing the display discharge cell C1 are excited by the ultraviolet rays generated by the discharge to emit light, thereby forming an image to be displayed. To be done.

This PDP has row electrodes X, for performing sustain discharge,
The transparent electrodes Xa, Ya of Y are not in the state where the tips of the transparent electrodes Xa, Ya are abutted with each other as in the conventional case (see FIG. 13), but the respective tip portions Xa1, Ya1 are bent with respect to the base end portions Xa2, Ya2. , The substantially parallel surfaces are opposed to each other, and further, the recess 11 is formed in the dielectric layer 11 in the portion between the tip portions Xa1 and Ya1 of the transparent electrodes Xa and Ya facing each other.
Since a is formed and the space formed by the recess 11a shortens the distance that the lines of electric force pass through the dielectric layer 11 during the sustain discharge, the electric field strength thereof is the same as the conventional one. Is increased compared to.

As a result, the PDP can generate the sustain discharge at a low driving voltage even when the content rate of the xenon gas in the discharge gas is increased in order to increase the luminous efficiency.

In this PDP, the address discharge is performed in the address discharge cell C2 formed separately from the display discharge cell C1 in which the sustain discharge is performed, and in the address discharge cell C2. , Protruding rib 1
The column electrode D is brought closer to the bus electrode Yb of the row electrode Y by 7 and the distance s2 is set to be smaller than the distance s1 between the transparent electrodes Xa, Ya and the column electrode D in the display discharge cell C1. Further, since the phosphor layer for light emission is not formed in the address discharge cell C2, the driving voltage for the address discharge is reduced even when the content rate of the xenon gas in the discharge gas is high. You can

Further, this PDP is similar to the conventional PDP in which the address discharge is performed in the address discharge cell C2 in which the phosphor layer is not formed, so that the address discharge is performed through the phosphor layer. In addition, since the discharge characteristics of the phosphors for each color forming the phosphor layer and variations in the thickness of the phosphor layer are not affected, stable operation is achieved.

Here, in the address discharge cell C2, the interval s2 between the column electrode D and the bus electrode Yb is the address discharge start voltage of the graph v1 showing the address discharge start voltage in the graph showing the Paschen characteristic shown in FIG. Is low and has a positive characteristic (characteristic that the discharge voltage value increases as the pressure in the discharge space increases), that is, the portion near the bottom of the graph v1 and on the right side thereof (indicated by E in the figure). It is preferable to use the (portion of the area) for setting.

As described above, by setting the interval s2 so that the address discharge start voltage is within the region E of the graph v1, the address discharge start voltage of the PDP can be reduced and at the same time, this region can be reduced. In E, since the change in the discharge voltage due to the pressure is small, the influence on the address discharge voltage due to the variation in the height of the protruding rib 17 (that is, the variation in the interval s2) can be minimized. In this example, the interval s2 is 7
It is set to 0 μm.

In the above PDP, the charged particles generated by the address discharge in the address discharge cell C2 are
The display discharge cell C on the side where the transparent electrode Ya extends from the bus electrode Yb that has undergone the address discharge through the gap r formed between the raised dielectric layer 12 and the second lateral wall 15B.
1, but between the other display discharge cell C1 adjacent to the opposite side and the other address discharge cell C2 adjacent to both sides in the row direction, the raised dielectric layer 12 is formed.
Are abutted against the first horizontal wall 15A and the vertical wall 15C to be shielded, so that charged particles are prevented from flowing into the other adjacent display discharge cells C1 and address discharge cells C2.

Also, the charged particles generated by the sustain discharge in the display discharge cell C1 are restricted from flowing to the adjacent address discharge cell C2 by the raised dielectric layer 12.

Since the raised dielectric layer 12 is a light absorbing layer containing a black or dark pigment, the light emission of the address discharge generated in the address discharge cell C2 is displayed on the front glass substrate 10. The leakage to the surface side is prevented, and the reflection of external light incident on the portion where the address discharge cells C2 are formed from the front glass substrate 10 is prevented, so that the contrast of the display image is improved.

In the above PDP, the concave portion 11a
May be formed independently for each display discharge cell C1, or may be formed in a strip shape extending along the row direction.

Further, the transparent electrodes Xa and Ya of the row electrode pair (X, Y) are face-to-face opposed to each other and the transparent electrode X is also formed.
The recess for interposing a space between a and Ya may be formed directly on the back side of the front glass substrate.

In addition, as a structure in which the display discharge cell C1 and the address discharge cell C2 which are paired with each other are communicated with each other, the height of the second horizontal wall 15B is set to the first horizontal wall 15 as described above.
It is formed so as to be lower than A, and the dielectric layer 12 is raised.
In addition to the structure in which a gap r is formed between the second horizontal wall 15B and the second horizontal wall 15B, a groove for communicating the display discharge cell C1 and the address discharge cell C2 is formed at the top of the second horizontal wall having the same height as the first horizontal wall 15A. Further, the display discharge cell C1 is formed on the raised dielectric layer that is in contact with the second horizontal wall having the same height as the first horizontal wall 15A.
To form a groove for communicating the address discharge cell C2 with each other, or to shift the positions of the second horizontal wall having the same height as the first horizontal wall 15A and the raised dielectric layer so that the display discharge cell C1 and the address discharge cell C2 communicate with each other. It is possible to adopt a configuration such as forming a gap.

FIGS. 5 and 6 are drawings schematically showing a second example of the embodiment of the PDP according to the present invention, and FIG. 5 is a front view showing a part of the cell structure of the PDP in the second example. 6 is a sectional view taken along line V2-V2 in FIG.

The PDP in the second example is the row electrode X.
The first bus electrode X1b is arranged at a position facing the first lateral wall 15A, and the base end portion X1a ′ of the transparent electrode X1a connected to the bus electrode X1b has a column electrode D on the protruding rib 17 via the address discharge cell C2. Has been extended to a position facing.

Similarly, the bus electrode Y1b of the row electrode Y1 is arranged at a position facing the second lateral wall 15B, and the transparent electrode Y1 is formed.
The base end portion Y1a 'connected to the bus electrode Y1b of a is the column electrode D on the protruding rib 17 via the address discharge cell C2.
Has been extended to a position facing.

The structure of the other parts is the same as that of the PDP in the above-mentioned first example, and the same reference numerals are given.

While the PDP of the first example causes the address discharge between the bus electrode Yb and the column electrode D on the protruding rib 17 in the address discharge cell C2, the PDP of the second example does. , The transparent electrode Y protruding from the bus electrode Y1b to a position facing the address discharge cell C2
An address discharge is generated between the base end portion Y1a 'of a and the column electrode D on the protruding rib 17.

Other operational effects are the same as in the case of the first example.

FIG. 7 shows a third embodiment of the present invention.
FIG. 3 is a cross-sectional view of the PDP of the example of FIG.

The PDP according to the third example has the same structure as the PDP according to the first example and has the address discharge cell C2.
The bus electrodes Xb and Yb of the row electrodes X and Y arranged at positions opposite to each other have black conductive layers and are positioned back to back on the adjacent display lines L to face the same address discharge cell C2. The black or dark light absorption layer 20 extending in the row direction between the bus electrodes Xb and Yb that are connected.
And the surface of the address discharge cell C2 facing the front glass substrate 10 is covered with the light absorbing layer 20 and the black or dark conductive layers of the bus electrodes Xb and Yb.

The structure of the other parts is the same as that of the PDP in the above-mentioned first example, and the same reference numerals are given.

According to the PDP of the third example, the light emission in the address discharge cell C2 is blocked by the light absorption layer 20 and the black or dark conductive layers of the bus electrodes Xb and Yb, so that the front glass substrate 10 is covered. Leakage to the display surface side is prevented, and external light incident on the portion where the address discharge cells C2 are formed is prevented from being reflected from the front glass substrate 10 to improve the contrast of the display image.

Other operational effects are the same as in the case of the first example.

FIGS. 8 and 9 are drawings schematically showing a fourth example of the embodiment of the PDP according to the present invention, and FIG. 8 is a sectional view of the PDP in the fourth example at the same position as FIG. FIG. 9 is a perspective view of the same example.

The PDP in the fourth example has the same structure as the PDP in the first example described above, and the column electrode protection layer 14 and the first lateral wall 15 in each address discharge cell C2.
A priming particle generation layer 30 is formed on portions of A, the second horizontal wall 15B, and the vertical wall 15C that do not face the column electrodes D.

The priming particle generation layer 30 is excited by, for example, ultraviolet rays having a predetermined wavelength or longer to 0,1.
It is formed of an ultraviolet light emitting material having an afterglow characteristic of continuously emitting ultraviolet rays for at least msec, preferably at least the address period length (for example, 1.0 msec or more).

The priming particle generation layer 30 formed of this ultraviolet light emitting material contains a material having a low work function (for example, 4.2 V or less), that is, a material having a high secondary electron emission coefficient (high γ material). It may be allowed to.

Materials having a low work function and an insulating property include alkali metal oxides (eg Cs ₂ O: work function 2.3 eV) and alkaline earth metal oxides (eg CaO, SrO, BaO). ), Fluorides (eg Ca
F ₂ , MgF ₂ ), a material having a secondary electron emission coefficient increased by introducing impurity levels into the crystal due to crystal defects and impurities (eg, Mg: O having a composition ratio of 1: 2 such as MgOx).
1 that has crystal defects introduced instead of 1), TiO _2, Y
₂ O _{3 and the} like.

Further, by being excited by vacuum ultraviolet rays having a wavelength of 147 nm emitted from xenon contained in the discharge gas by the discharge, 0.1 msec or more, preferably 1.0 msec or more (more than the time length of the address period).
Examples of the ultraviolet light emitting material having afterglow characteristics such as continuously emitting ultraviolet rays include BaSi ₂ O ₅ : Pb ²⁺ (emission wavelength: 350 nm), SrB ₄ O ₇ F: Eu ²⁺ (emission wavelength: 360 nm), ( Ba, Mg, Zn) ₃ Si
₂ O ₇ : Pb ²⁺ (emission wavelength: 295 nm), YF ₃ :
Examples thereof include Gd and Pr.

The structure of the other parts is the same as that of the PDP of the first example, and the same reference numerals are given.

The PDP of the fourth example has a wavelength of 147 nm emitted from xenon contained in the discharge gas by the reset discharge in the simultaneous reset period in which the wall charges are formed (or erased) in all the display discharge cells C1. The vacuum ultraviolet rays excite the priming particle generation layer 30 formed in the address discharge cell C2 to emit ultraviolet light, and further,
When this ultraviolet light contains a high γ material in the protective layer (MgO layer) covering the raised dielectric layer 12 or the priming particle generation layer 30, this high γ material is excited to
Release priming particles.

Then, this priming particle generation layer 30
However, due to the afterglow characteristics of the ultraviolet light-emitting material that is the forming material, by continuously emitting ultraviolet light for at least 0.1 msec or more, the address necessary for generating the address discharge is generated during the address period next to the simultaneous reset period. A sufficient amount of priming particles is ensured in the discharge cell C2,
This prevents the occurrence of erroneous discharge and the occurrence of discharge delay due to the decrease in the amount of priming particles due to the passage of time after reset discharge.

Other operational effects are the same as in the case of the first example.

10 and 11 show a PD according to the present invention.
It is drawing which represents typically the 5th example of embodiment of P, FIG. 10 is sectional drawing in the same position as FIG. 2 of PDP in this 5th example, and FIG. 11 is a perspective view of the same example. is there.

Unlike the first to fourth PDPs described above, the PDP of the fifth example has no protruding rib for forming the column electrode close to the bus electrode in the address discharge cell. D1 is also formed on a straight line in a portion facing the address discharge cell C2 ′.

Then, in the address discharge cell C2 ',
The dielectric layer 40 made of a high ε material having a relative permittivity ε of 50 or more (50 to 250) is formed, and the discharge space of the address discharge cell C2 ′ (the bus electrode Yb and the dielectric layer 40 is formed.
The space between and) is narrowed.

The high ε material forming the dielectric layer 40 is, for example, SrTiO ₃ . The configuration of the other parts is similar to that of the PDP of the first example, and the same reference numerals are given.

In the PDP of the fifth example, the address discharge is performed through the high ε material forming the dielectric layer 40 in the address discharge cell C2 ′, and the high ε material has a relative dielectric constant ε of 50 or more. Since the apparent discharge distance between the column electrode D1 for performing the address discharge and the bus electrode Yb is shortened by having the above, the starting voltage of the address discharge becomes smaller.

Other operational effects are the same as in the case of the first example.

[Brief description of drawings]

FIG. 1 is a front view schematically showing a first example of the present invention.

FIG. 2 is a sectional view taken along line V1-V1 of FIG.

FIG. 3 is a perspective view of the same example.

FIG. 4 is a graph showing Paschen characteristics for setting an address discharge distance in the same example.

FIG. 5 is a front view schematically showing a second example of the present invention.

6 is a cross-sectional view taken along line V2-V2 of FIG.

FIG. 7 is a sectional view schematically showing a third example of the present invention.

FIG. 8 is a front view schematically showing a fourth example of the present invention.

FIG. 9 is a perspective view of the same example.

FIG. 10 is a sectional view showing a fifth example of the present invention.

FIG. 11 is a perspective view of the same example.

FIG. 12 is a front view schematically showing the configuration of a conventional PDP.

13 is a cross-sectional view taken along the line VV of FIG.

14 is a cross-sectional view taken along the line WW of FIG.

[Explanation of symbols]

10 ... Front glass substrate (front substrate) 11 ... Dielectric layer 11A ... Intermediate layer (dielectric layer) 11B ... Outer layer (dielectric layer) 11a ... Recessed portion (space portion) 12 ... Raised dielectric layer (raised portion) 13 ... Rear glass substrate (rear substrate) 14, 14 '... Column electrode protective layer 15 ... Partition wall 15A ... First horizontal wall (partition wall) 15B ... Second horizontal wall (partition wall) 15C ... Vertical wall (partition wall) 16 ... Phosphor layer 17 ... Projection ribs (projections) 20 ... Light absorption layer 30 ... Priming particle generation layer 40 ... Dielectric layers X, X1 ... Row electrodes Xa, X1a ... Transparent electrodes Xb, X1b ... Bus electrodes X1a ′ ... Base end portions Y, Y1 ... Rows Electrodes Ya, Y1a ... Transparent electrodes Yb, Y1b ... Bus electrode Y1a '... Proximal end portion (extension part) D, D1 ... Column electrode C1 ... Display discharge cell (first discharge region) C2, C2' ... Address discharge cell (first 2 discharge areas) L ... Display line r ... Gap (communication part) s1 ... Interval s2 ... Interval

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hitoshi Taniguchi             Yamanashi Prefecture Nakatoma-gun Tatomi Town Nishi Hanawa 2680 Shizu Shizu             Oka Pioneer Corporation Kofu Office (72) Inventor Chiharu Oshio             Yamanashi Prefecture Nakatoma-gun Tatomi Town Nishi Hanawa 2680 Shizu Shizu             Oka Pioneer Corporation Kofu Office F-term (reference) 5C040 FA01 FA04 GA01 GB03 GB12                       GB16 GF03 GF14 GH06 LA09                       MA03 MA17

Claims (23)

[Claims] 1. A plurality of row electrode pairs extending in the row direction and juxtaposed in the column direction to form display lines, respectively, and a dielectric layer covering the row electrode pairs are provided on the back side of the front substrate.
On the side of the rear substrate facing the front substrate through the discharge space,
In a plasma display panel provided with a plurality of column electrodes each of which constitutes a unit light emitting region in a discharge space at positions that extend in the column direction and are arranged in parallel in the row direction and intersect with the row electrode pairs, the rows forming the row electrode pairs. The portions of the electrodes that discharge each other face each other across a space, and the periphery of each of the unit light emitting regions is partitioned by partition walls, and the unit light emitting regions are partitioned by a partition wall. Discharge between the column electrode and a first discharge region that faces the portions of the row electrodes that constitute the row electrodes and that face each other through the space and discharge is performed through the space between the row electrodes. It is divided into a second discharge region facing a part of one row electrode and discharging between a part of the row electrode and the column electrode. The second discharge area between A plasma display panel, characterized in that a communication portion is provided to communicate with one discharge region. 2. The plasma display panel according to claim 1, wherein the space is constituted by a recess formed in a portion located between portions of the row electrodes of the dielectric layer where discharge occurs between the row electrodes. . 3. The plasma display panel according to claim 2, wherein the recess is formed in an island shape in each of the first discharge regions. 4. The plasma display panel according to claim 2, wherein the concave portion is formed in a strip shape extending along the row direction and continuing between the first discharge regions adjacent to each other in the row direction. 5. The plasma display panel according to claim 1, wherein the portions of the row electrodes forming the row electrode pair, which discharge each other, face each other across the space. 6. The row electrodes forming the row electrode pair are paired with an electrode body portion extending in the row direction and a pair of electrode body portions protruding from the electrode body portion in the column direction for each unit light emitting region. A transparent electrode portion that faces the row electrode via a discharge gap, and the electrode body portion of at least one row electrode faces the second discharge region, and the electrode body portion and the column electrode Second between
The plasma display panel according to claim 1, wherein the discharge is performed in the discharge region. 7. The row electrodes forming the row electrode pair are respectively paired with an electrode main body extending in the row direction and a pair protruding from the electrode main body in the column direction for each unit light emitting region. A row electrode and a transparent electrode portion facing each other through a discharge gap, and the transparent electrode portion is opposite to the transparent electrode portion side of the other row electrode paired with each other from the electrode body portion. The extension part of the transparent electrode part of at least one row electrode is opposed to the second discharge region, and the extension part of the transparent electrode part and the second part are provided between the extension part of the transparent electrode part and the column electrode. The plasma display panel according to claim 1, wherein the discharge is performed in the discharge region. 8. A unit light emitting region adjacent to a barrier rib formed in the portion of the dielectric layer facing the second discharge region so as to project into the second discharge region and partition the unit light emitting region. The plasma display panel according to claim 1, wherein a raised portion that closes between the first discharge region and the second discharge region is formed. 9. The plasma display panel according to claim 1, wherein a black or dark color light absorption layer is provided in a portion of the front substrate facing the second discharge region. 10. The row electrodes forming the row electrode pair are respectively paired with an electrode main body extending in the row direction and a pair protruding from the electrode main body in the column direction for each unit light emitting region. A row electrode and a transparent electrode portion facing each other through a discharge gap, and at least one of the row electrode electrode body portions faces the second discharge region. Discharge is generated in the second discharge region between the light absorption layers, and the light absorption layer is formed on a portion of the electrode main body of the row electrode facing the black or dark layer and the second discharge region on the front substrate side. The plasma display panel according to claim 9, comprising a black or dark layer. 11. A unit light emitting region adjacent to a partition wall formed to project toward the second discharge region and partitioning the unit light emitting region at a portion of the dielectric layer facing the second discharge region. The plasma display panel according to claim 9, wherein a raised portion that closes between the first discharge region and the second discharge region is formed, and the light absorbing layer is configured by forming the raised portion with a black or dark material. . 12. The plasma display panel according to claim 1, wherein a phosphor layer that emits light by discharge is formed only in the first discharge region. 13. A protrusion, which protrudes into the second discharge region toward the front substrate, is formed between the rear substrate and the column electrode at a portion of the rear substrate facing the second discharge region. The plasma display panel according to claim 1, wherein a portion of the column electrode facing the second discharge region is projected toward the front substrate side by the protrusion. 14. A priming particle generation layer is provided in the second discharge region of the unit light emitting region.
Plasma display panel according to. 15. The plasma display panel according to claim 14, wherein the priming particle generation layer is formed of an ultraviolet light emitting material having an afterglow characteristic which is excited by ultraviolet rays having a predetermined wavelength and continues to emit the ultraviolet rays. . 16. The ultraviolet light emitting material is 0.1 mse.
The plasma display panel according to claim 15, having an afterglow characteristic of c or more. 17. The plasma display panel according to claim 15, wherein the ultraviolet light emitting material has an afterglow characteristic of 1 msec or more. 18. The material having a work function of 4.2 eV or less is contained in the priming particle generation layer.
Plasma display panel according to. 19. A dielectric layer formed of a material having a relative permittivity of 50 or more is formed on a portion of the second discharge region on the rear substrate side, and a dielectric layer of a row electrode that discharges between the column electrodes. The device is provided so as to be interposed between the part and the part.
Plasma display panel according to. 20. The communication portion is formed by the height of a partition wall that partitions the first discharge region and the second discharge region being lower than the height of a partition wall that partitions each unit light emitting region. The plasma display panel according to claim 1, wherein the plasma display panel is formed by a gap with the front substrate side. 21. The communication part is formed by a groove part which is formed in a partition wall which partitions the first discharge region and the second discharge region, and whose both ends are opened to the first discharge region and the second discharge region. Item 2. A plasma display panel according to item 1. 22. A unit light emitting region adjacent to a partition wall formed to project toward the second discharge region and partitioning the unit light emitting region at a portion of the dielectric layer facing the second discharge region, the unit light emitting region adjacent to the unit light emitting region. The plasma display panel according to claim 1, wherein a raised portion that closes between the first discharge region and the second discharge region is formed, and the communication portion is formed in the raised portion. 23. The plasma display panel according to claim 1, wherein the discharge gas sealed in the discharge space is a mixed rare gas containing 10% or more of xenon gas.