JP2001135240A - Plasma display panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an AC-type plasma display panel(PDP) that can give sufficient emission efficiency. SOLUTION: In the PDP in which a plurality of row electrode pairs (X, Y), that extends in the row direction and is arranged in parallel with the column direction to form respective display lines at the back side of the front glass substrate 10, a plurality of column electrodes D extending to the column direction and arranged, in parallel with the row direction to compose discharge cells C in respective discharge spaces at positions crossing with the row electrode pairs (X, Y) at the side facing the front glass substrate 10 of the back side glass substrate 13 through the discharge space, and a fluorescent layer 16 has been formed in each discharge cell C, this has been equipped with partitions 15 disposed between the front glass substrate 10 and rear glass substrate 13 and divide the discharge space by each discharge cell C, and this partitions 15 have been formed with a raw material with transparency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface discharge type AC type plasma display panel, and more particularly, to a structure of a partition for dividing discharge cells of the plasma display panel.

[0002]

In recent years, a surface discharge AC plasma display panel (hereinafter, referred to as a PDP) has attracted attention as a large and thin color screen display device, and its spread has been attempted. I have.

FIG. 12 shows a horizontal structure of a conventional AC PDP.
FIG. 2 is a perspective view showing a state where a front glass substrate 1 side and a rear glass substrate 4 side are separated.

In FIG. 12, a plurality of pairs of row electrodes (X ′, Y ′) are arranged on the back side of a front glass substrate 1 and covered with a transparent dielectric layer 2. On the back surface of the body layer 2, a transparent protective layer 3 made of MgO is formed.

Each of the row electrodes X 'and Y' is a transparent electrode Xa ', Y made of a transparent conductive film such as a wide ITO.
a 'and bus electrodes Xb' and Yb 'made of a metal film having a small width to compensate for the conductivity. The bus electrodes X' and Yb 'are formed at equal intervals in opposing portions of the row electrodes X' and Y '. The projections Xa ″ and Ya ″ are alternately arranged in the column direction so as to face each other across the discharge gap g ′.

[0006] By each row electrode pair (X ', Y'),
One display line (row) L of the matrix display is configured.

A plurality of column electrodes D 'are arranged on the display surface side of the rear glass substrate 4 so as to extend in a direction orthogonal to the row electrode pairs (X', Y '), and between the column electrodes D'. A strip-shaped partition wall 5 is formed so as to extend in parallel, and the three primary colors of red (R), green (G), and blue (B) are respectively provided so as to cover the side surface of the partition wall 5 and the column electrode D ′. The color-coded phosphor layers 6R, 6G, and 6B are sequentially formed in the column direction.

The front glass substrate 1 and the rear glass substrate 4 configured as described above are opposed to each other in parallel via a discharge space, and a neon light is interposed between the front glass substrate 1 and the rear glass substrate 4. And a discharge gas in which xenon and the like are mixed.

In this manner, in each display line L, the discharge space where the column electrode D 'intersects the row electrode pair (X', Y ') is defined by the partition walls 5,
Discharge cells serving as unit light emitting regions as described below are formed.

[0010] The image formation in the AC type PDP is performed as follows.

That is, first, in each discharge cell in which the phosphor layers 6R, 6G, 6B are formed by an address operation, a selective connection is made between the row electrode pair (X ', Y') and the column electrode D '. In this case, the lit cells (discharge cells having wall charges formed on the dielectric layer 2) and the unlit cells (discharge cells having no wall charges formed on the dielectric layer 2) correspond to the image to be displayed. And distributed on the panel.

After the address operation, a sustaining pulse is alternately applied to the row electrode pairs (X ', Y') simultaneously in all the display lines L. Each time the sustaining pulse is applied, Surface discharge is generated in the lighting cell.

In this manner, ultraviolet rays are generated by the surface discharge in each lighting cell, and the phosphor layers 6R or 6G, 6B formed in each lighting cell are excited to emit light, thereby displaying an image. An image is formed.

The AC type PDP as described above has excellent characteristics that the display can be made very thin and a high-quality color screen can be displayed.

Here, in the AC type PDP as described above, all of the light emitted from the phosphor layers 6R, 6G and 6B when the surface discharge is performed reaches the display surface side of the front glass substrate 1 and the image is displayed. Does not contribute to the formation of the image, but is absorbed by the partition walls 5 or leaks to the rear glass substrate 4 side, so that the brightness of the image formed on the display surface of the front glass substrate 1 is reduced accordingly. Have a problem.

Therefore, it is desired to improve the luminous efficiency of the AC type PDP.
In order to reduce the loss of light emission due to the absorption of light by the partition walls and the leakage from the rear glass substrate, the partition walls are formed of a white material, or a white layer is provided on the rear glass substrate so that the partition walls and the rear glass substrate can be used to reduce the front surface A PDP having a structure such as reflecting light on the glass substrate side has been proposed.

However, even by adopting the above-described structure, the luminous efficiency has not been sufficiently improved.

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

That is, an object of the present invention is to provide an AC type plasma display panel capable of obtaining sufficient luminous efficiency.

[0020]

According to a first aspect of the present invention, there is provided a plasma display panel for achieving the above object.
On the back side of the front substrate, a plurality of row electrode pairs extending in the row direction and arranged in the column direction to form display lines are provided, and on the side of the rear substrate facing the front substrate via the discharge space, A plasma display in which a plurality of column electrodes constituting a discharge cell are provided in a discharge space at positions intersecting with a row electrode pair and extending in a column direction and intersecting with a row electrode pair, and a phosphor layer is formed in the discharge cell. In the panel, a partition is provided between the front substrate and the rear substrate to partition the discharge space for each discharge cell, and the partition is formed of a translucent material. .

In the plasma display panel according to the first invention, the discharge space between the front substrate and the rear substrate is
Partitioning is performed for each discharge cell.

The partition is made of a light-transmitting material, so that light emitted from the phosphor layer by the discharge and traveling toward the partition passes through the partition.

Therefore, according to the first aspect, of the light emitted in the discharge cell, the light directed toward the partition wall spreads inside the partition wall, and then spreads from the partition wall to the display surface side of the front substrate. By doing so, the apparent aperture ratio increases, and thereby the brightness of the formed image increases, and sufficient luminous efficiency can be obtained.

Further, since the light emitted between adjacent discharge cells is mixed in the partition, the presence of the partition becomes less noticeable, thereby improving the quality of the displayed image.

According to a second aspect of the present invention, in order to achieve the above object, in addition to the configuration of the first aspect, the partition wall has a vertical wall portion extending in a column direction and a horizontal wall portion extending in a row direction. It is characterized in that the discharge space is divided into a row direction and a column direction for each discharge cell.

In the plasma display panel according to the second invention, the discharge space between the front substrate and the back substrate is
Partitions formed by vertical wall portions extending in the column direction and horizontal wall portions extending in the row direction are divided for each discharge cell in the row direction and the column direction, and the grid-shaped partition walls are formed of a material having a light-transmitting property. The light emitted from the phosphor layer by the discharge and traveling toward the partition wall passes through the partition wall.

Therefore, according to the second aspect of the invention, of the light emitted in the discharge cell, the light traveling toward the partition wall spreads inside the partition wall, and then spreads from the partition wall to the display surface side of the front substrate. By doing so, the apparent aperture ratio increases, and thereby the brightness of the formed image increases, and sufficient luminous efficiency can be obtained.

Further, since the light emitted between the adjacent discharge cells is mixed in the partition, the presence of the partition becomes less noticeable, thereby improving the quality of the displayed image.

A plasma display panel according to a third aspect of the present invention is characterized in that, in order to achieve the above object, in addition to the configuration of the first aspect, the transparent material is a glass material.

According to the plasma display panel of the third aspect of the present invention, the partition for partitioning the discharge cells is formed of a translucent glass material.
Light emitted from the phosphor layer by the discharge and traveling toward the partition wall side passes through the partition wall, whereby the luminance of an image formed on the display surface is increased and sufficient luminous efficiency can be obtained. become able to do.

According to a fourth aspect of the present invention, in order to achieve the above object, in addition to the configuration of the first aspect, the partition wall is formed of a light transmitting layer formed of the light transmitting material. A light absorbing layer that absorbs light is provided on the side facing the front substrate.

According to the plasma display panel of the fourth aspect of the present invention, light such as black or dark brown is absorbed on the side of the light-transmitting layer formed of the light-transmitting material of the partition wall facing the front substrate. By forming the light-absorbing layer colored in dark color, external light entering through the front substrate is absorbed by the light-absorbing layer formed on the partition and reflection is prevented, so that the contrast of the display screen is improved. Can be improved.

In a plasma display panel according to a fifth aspect of the present invention, a dielectric layer formed on the back side of the front substrate so as to cover the row electrode pairs is provided on a portion facing the horizontal wall portion and on a side of the horizontal wall portion. A raised portion that protrudes and closes between the horizontal wall portion is formed, and a gap is formed between the raised portion and the vertical wall portion of the partition wall.

According to the fifth aspect, it is possible to prevent occurrence of erroneous discharge due to interference of discharge between adjacent discharge cells in the column direction, thereby achieving high definition of a screen. It becomes possible.

A plasma display panel according to a sixth aspect of the present invention is characterized in that a phosphor layer is formed on the side surfaces of the vertical wall and the horizontal wall of the partition and on the inner surface of the substrate on the back side provided with the column electrodes. I have.

According to the sixth aspect, since the phosphor layer is formed on the five faces facing the discharge cells, the surface area of the phosphor layer, that is, the light emitting area is smaller than that of the conventional plasma display panel. As a result, the brightness of each discharge cell is increased, and the brightness of the display screen can be improved as compared with the conventional one. Even if the size is reduced, the brightness of the display screen does not decrease as compared with the conventional one.

A plasma display panel according to a seventh aspect of the present invention is characterized in that a light absorbing layer is formed at a portion between two adjacent bus electrodes of the row electrodes in two display lines.

According to the seventh aspect, external light incident through the front substrate is absorbed by the light absorbing layer formed between the bus electrodes of the row electrodes, thereby preventing reflection. Therefore, the contrast of the display screen can be improved.

According to an eighth aspect of the present invention, in the plasma display panel, each of the row electrodes constituting the row electrode pair includes a transparent electrode opposed to each discharge cell via a discharge gap, and an edge opposite to the discharge gap. And a transparent electrode and a bus electrode connected to the discharge electrode, wherein the transparent electrode is formed in an independent island shape for each discharge cell.

According to the eighth aspect, since the transparent electrodes constituting the row electrode pairs are configured so as to be independent in the form of islands for each discharge cell, each of the transparent electrodes is formed in order to increase the definition of the screen. Even if the size of the discharge cells is reduced, there is no possibility that discharge interference will occur in adjacent discharge cells in the row direction.

[0041]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described below in detail with reference to the drawings.

FIGS. 1 to 5 show a first embodiment of a plasma display panel (hereinafter referred to as PDP) according to the present invention. FIG. 1 schematically shows a PDP in the first embodiment. FIG. 2 is a plan view of FIG.
3 is a sectional view taken along line V1-V1, and FIG.
2 is a sectional view taken along line W1-W1 in FIG. 1, and FIG. 5 is a sectional view taken along line W2-W2 in FIG.

In the PDP shown in FIGS. 1 to 5, a plurality of pairs of row electrodes (X, Y) are arranged on the back surface of a front glass substrate 10 as a display surface in the row direction of the front glass substrate 10 (left and right in FIG. 1). Direction).

The row electrode X is formed of a T-shaped ITO
And the like, and a bus electrode Xb made of a metal film extending in the row direction of the front glass substrate 10 and connected to the narrow base end of the transparent electrode Xa.

Similarly, a row electrode Y is formed at the narrow base end of the transparent electrode Ya extending in the row direction of the front glass substrate 10 with a transparent electrode Ya formed of a transparent conductive film such as ITO formed in a T shape. It is constituted by a bus electrode Yb made of a connected metal film.

The row electrodes X and Y are connected to the front glass substrate 10
Are arranged alternately in the column direction (vertical direction in FIG. 1).
The transparent electrodes Xa and Ya arranged in parallel along the bus electrodes Xb and Yb extend to the row electrode side of the mating partner, and the top sides of the wide portions of the transparent electrodes Xa and Ya have the required widths, respectively. Are opposed to each other via a discharge gap g.

The bus electrodes Xb and Yb are respectively formed of the black conductive layers Xb ′ and Yb ′ on the display surface side and the main conductive layer Xb on the back side.
It is formed in a two-layer structure of b ″ and Yb ″.

On the rear surface of the front glass substrate 10, between the bus electrodes Xb and Yb of the row electrode pairs (X, Y) adjacent to each other in the column direction, and along the bus electrodes Xb and Yb. A light-absorbing layer (light-shielding layer) 30 extending in the row direction is formed, and a light-absorbing layer (light-shielding layer) 31 is formed on a portion of the partition 15 facing the vertical wall 15a, which will be described later. .

On the back surface of the front glass substrate 10,
A dielectric layer 11 is formed so as to cover the row electrode pair (X, Y), and on the back surface of the dielectric layer 11, an adjacent bus electrode Xb of the adjacent row electrode pair (X, Y) is formed. The raised dielectric layer 11A protruding to the rear side of the dielectric layer 11 is provided at a position facing the bus electrode Xb at a position facing the bus electrode Xb and at a position facing the bus electrode Xb.
It is formed so as to extend in parallel with b and Yb.

On the back side of the dielectric layer 11 and the raised dielectric layer 11A, a protective layer 12 made of MgO is formed.

On the other hand, the column electrodes D are provided on the display side surface of the rear glass substrate 13 arranged in parallel with the front glass substrate 10.
Are located at positions opposed to the paired transparent electrodes Xa and Ya of each row electrode pair (X, Y).
They are arranged in parallel at a predetermined interval from each other so as to extend in a direction (column direction) orthogonal to Y).

On the surface of the rear glass substrate 13 on the display side,
Further, a white dielectric layer 14 covering the column electrode D is formed, and a partition 15 is formed on the dielectric layer 14.

The partition 15 has a vertical wall 15a extending in the column direction at a position between the column electrodes D arranged in parallel with each other.
And a lateral wall 15b extending in the row direction at a position facing the raised dielectric layer 11A, and is formed in a ladder shape.

The space between the front glass substrate 10 and the back glass substrate 13 is formed by the ladder-shaped partition walls 15 so that the transparent electrodes Xa and Ya paired in each row electrode pair (X, Y).
, And a rectangular discharge cell C is formed.

The display side surface of the vertical wall 15a of the partition wall 15 is not in contact with the protective layer 12 (see FIG. 4), and a gap r is formed therebetween. The protective layer 12 is in contact with the portion of the protective layer 12 which covers the raised dielectric layer 11A (see FIGS. 2 and 5), and the space between the adjacent discharge cells C in the column direction is shielded.

The vertical wall 1 of the partition wall 15 facing the discharge cell C
5a and the side surfaces of the lateral wall 15b and the surface of the dielectric layer 14 are covered with the phosphor layer 16 so as to cover all five surfaces.
Are formed in order.

The color of the phosphor layer 16 is set such that red, green and blue colors are arranged in the row direction for each discharge cell C (see FIG. 4).

Each discharge cell C is filled with a rare gas.

The horizontal walls 15b of the partition walls 15 that partition the discharge cells C are separated in the column direction by gaps SL provided at positions overlapping the light absorbing layers 30 between the display lines.

That is, the partition 15 is provided with a display line (row).
They are formed in a ladder shape along the L direction, and are arranged so as to be parallel to each other via a gap SL extending along the display line L in the column direction.

A gap SL provided between the display lines L
The width of the gap SL is set so that the width of each portion 15b 'of the horizontal wall 15b divided by the above is substantially the same as the width of the vertical wall 15a.

FIG. 6 shows an example of the shape and arrangement of the partitions 15.

In FIG. 6, the partition walls 15 are
By the vertical wall 15a and the horizontal wall 15b formed in a ladder shape,
The discharge space is partitioned so that the discharge cells C are arranged in a line.

The partitions 15 are arranged in the column direction so as to extend in parallel with each other along the display line L, and so that the horizontal walls 15b of the partitions 15 adjacent to each other face each other with the gap SL interposed therebetween.

The discharge cells C 'located at the right end and the left end of the partition wall 15 are dummy cells, respectively, and the outer corners of the partition wall 15 defining the dummy cell C' are chamfered 15c. ing.

The chamfer 15c is provided to prevent the corners of the partition wall 15 from rising, and may be straight or curved as shown in FIG.

That is, if a bulge occurs at the corner of the partition wall 15, when the front substrate and the back substrate are overlapped, the front substrate comes into contact only with the bulge (that is, the periphery of the substrate) and the other parts (the center). Portion) is in a floating state, so that the substrate is vibrated when the plasma display panel is driven, and a vibration noise is generated. However, the raised portion is prevented by the chamfer 15c provided at the corners of the partition wall 15, so that the substrate is prevented from rising. And the partition wall 15 come into contact uniformly,
The occurrence of such vibrations is prevented.

The partition 15 has a one-layer structure of a transparent light-transmitting layer formed of a light-transmitting glass material into which a pigment or the like is not mixed.

In the above-mentioned PDP, the row electrode pairs (X, Y) each constitute one display line (row) L of the matrix display screen, and the discharge spaces S defined by the ladder-like partition walls 15 are respectively formed. One discharge cell C is defined.

In the image display in this PDP, first, discharge is selectively performed between a row electrode pair (X, Y) and a column electrode D in each discharge cell C by an address operation.
The lit cells (discharge cells C with wall charges formed on the dielectric layer 11) and the unlit cells (discharge cells C with no wall charges formed on the dielectric layer 11) in all the display lines L correspond to the image to be displayed. Correspondingly distributed on the panel.

After this address operation, a discharge sustaining pulse is alternately applied to all the display electrode lines L to the row electrode pairs (X, Y) at the same time. Surface discharge occurs in the cell.

As described above, ultraviolet rays are generated by the surface discharge in the lighting cells, and the phosphor layers 16 of each color of red, green and blue in each discharge cell C are excited and emit light, thereby forming a display screen. You.

In the PDP, the horizontal wall 15b of the partition wall 15 for partitioning the discharge cell C is formed by a gap S provided between the display lines L.
L in the column direction, and each of the separated portions 15
By setting the width of b ′ so as to be substantially the same as the width of the vertical wall 15a, the shrinkage of the partition wall 15 during firing is reduced, thereby reducing the front glass substrate 10 and the rear glass substrate 13. There is no risk of deformation of the discharge cell shape due to warpage, breakage of the partition wall 15, and the like.

Further, the PDP is provided with a front glass substrate 1
0, the portion other than the portion facing the discharge cell C is covered by the light absorbing layers 30, 31 and the black conductive layers Xb ', Yb' of the bus electrodes Xb, Yb formed in a two-layer structure. Accordingly, it is possible to prevent external light incident through the front glass substrate 10 from being reflected, thereby improving the contrast of the display screen.

The PDP has a single-layer structure of a transparent light-transmitting layer formed of a light-transmitting glass material into which a pigment or the like is not mixed. Of the emitted light, light traveling toward the partition 15 spreads inside the partition 15,
By spreading from the partition wall 15 to the display surface side of the front glass substrate 10, the apparent aperture ratio increases, thereby increasing the brightness of the formed image.

Further, since the light emitted between the adjacent discharge cells C is mixed in the barrier ribs 15, the presence of the barrier ribs becomes less noticeable, thereby improving the quality of the displayed image.

Next, a second example of the embodiment of the present invention will be described with reference to FIGS.

FIG. 7 is a plan view schematically showing the PDP of the second example, FIG. 8 is a sectional view taken along line V3-V3 in FIG. 7, and FIG. 9 is a sectional view taken along line V4-V4 in FIG. , FIG.
0 is a sectional view taken along line W3-W3 in FIG. 7, and FIG.
3 is a sectional view taken along line W4-W4 of FIG.

This PDP is shown in FIGS.
A plurality of row electrode pairs (X, Y) are arranged on the back surface of the front glass substrate 10 as a display surface in the row direction of the front glass substrate 10 (FIG. 7).
Are arranged in parallel so as to extend in the left-right direction.

The row electrode X is formed of a T-shaped ITO
And the like, and a bus electrode Xb made of a metal film extending in the row direction of the front glass substrate 10 and connected to the narrow base end of the transparent electrode Xa.

Similarly, the row electrode Y is formed at the narrow base end of the transparent electrode Ya extending in the row direction of the front glass substrate 10 and in the row direction of the front glass substrate 10. It is constituted by a bus electrode Yb made of a connected metal film.

The row electrodes X and Y are connected to the front glass substrate 10
Are alternately arranged in the column direction (vertical direction in FIG. 7).
The transparent electrodes Xa and Ya arranged in parallel along the bus electrodes Xb and Yb extend to the row electrode side of the mating partner, and the top sides of the wide portions of the transparent electrodes Xa and Ya have the required widths, respectively. Are opposed to each other via a discharge gap g.

The bus electrodes Xb and Yb are respectively composed of the black conductive layers Xb ′ and Yb ′ on the display surface side and the main conductive layer Xb on the back side.
It is formed in a two-layer structure of b ″ and Yb ″.

On the back surface of the front glass substrate 10,
A dielectric layer 11 is formed so as to cover the row electrode pair (X, Y), and on the back surface of the dielectric layer 11, an adjacent bus electrode Xb of the adjacent row electrode pair (X, Y) is formed. The raised dielectric layer 11A protruding to the rear side of the dielectric layer 11 is provided at a position facing the bus electrode Xb at a position facing the bus electrode Xb and at a position facing the bus electrode Xb.
It is formed so as to extend in parallel with b and Yb.

On the back side of the dielectric layer 11 and the raised dielectric layer 11A, a protective layer 12 made of MgO is formed.

On the other hand, on the display side surface of the rear glass substrate 13 arranged in parallel with the front glass substrate 10, column electrodes D are provided.
Are located at positions opposed to the paired transparent electrodes Xa and Ya of each row electrode pair (X, Y).
They are arranged in parallel at a predetermined interval from each other so as to extend in a direction (column direction) orthogonal to Y).

On the surface of the rear glass substrate 13 on the display side,
Further, a white dielectric layer 14 covering the column electrode D is formed.

The above configuration is the same as that of the PDP of the first example described above, and the same reference numerals are given. A partition 25 is formed on the dielectric layer 14.

The partition walls 25 are formed by vertical walls 25 extending in the column direction at positions between the column electrodes D arranged in parallel with each other.
and a horizontal wall 15b extending in the row direction at a position facing the raised dielectric layer 11A.

Then, with this cross-shaped partition wall 25,
The space between the front glass substrate 10 and the rear glass substrate 13 is divided into portions facing the paired transparent electrodes Xa and Ya in each row electrode pair (X, Y). Is formed.

The partition wall 25 is formed on the display surface side, and has a black layer (light absorbing layer) 25 ′ and a transparent light transmitting layer 25 ″ formed on the back side of a transparent glass material.
Are formed so as to form a two-layer structure.

The display side surface of the vertical wall 25a of the partition wall 25 is not in contact with the protective layer 12 (see FIG. 10), and a gap r is formed therebetween. ,
The protective layer 12 is in contact with the portion of the protective layer 12 that covers the raised dielectric layer 11A (see FIGS. 8 and 9), and shields the space between the adjacent discharge cells C in the column direction.

Vertical wall 25a of partition wall 25 facing discharge cell C
On the side surfaces of the horizontal wall 25b and on the surface of the dielectric layer 14, phosphor layers 16 are sequentially formed so as to cover all five surfaces.

The color of the phosphor layer 16 is set so that the red, green and blue colors are sequentially arranged in the row direction for each discharge cell C. The discharge cell C is filled with a rare gas.

In this PDP, each of the row electrode pairs (X, Y) forms one display line (row) L of the matrix display screen.
The space between 0 and the back glass substrate 13 is partitioned, and each discharge cell C is formed.

As in the PDP of the first example, the image display in this PDP is performed by first selectively discharging between the row electrode pair (X, Y) and the column electrode D by the address operation.
Illuminated cells and unlit cells are distributed on the panel corresponding to the image to be displayed on all display lines L. Thereafter, all the display lines L are alternately arranged on the row electrode pairs (X, Y) simultaneously. A sustaining pulse is applied to generate a surface discharge in each lighting cell.

Ultraviolet rays are generated by the surface discharge in the lighting cells, and the red, green, and blue phosphor layers 16 in the discharge cells C are excited to emit light, respectively.
A display screen is formed.

In the PDP, black conductive layers Xb 'and Yb' are provided on the display surface side of the bus electrodes Xb and Yb, respectively, and a black layer 25 'is formed on the display side surface of the partition wall 25. Accordingly, it is possible to prevent the external light incident through the front glass substrate 10 from being reflected, thereby improving the contrast of the display screen.

Further, the PDP is provided with a partition wall 25.
Has a single-layer structure of a transparent light-transmitting layer formed of a light-transmitting glass material into which a pigment or the like is not mixed, so that light emitted in the discharge cell C goes toward the partition wall 25. After the light spreads inside the partition 25, the light spreads from the partition 25 to the display surface side of the front glass substrate 10, thereby increasing the apparent aperture ratio, thereby reducing the brightness of the formed image. To rise.

Further, since the light emitted between the adjacent discharge cells C is mixed in the barrier ribs 25, the presence of the barrier ribs becomes less noticeable, thereby improving the quality of the displayed image.

In each of the above examples, the row electrode pairs (X, Y) are arranged independently for each display line. However, the arrangement of the row electrodes X and Y is changed for each display line. The bus electrodes of one row electrode may be shared between adjacent display lines, or the bus electrodes of both row electrodes may be shared.

[Brief description of the drawings]

FIG. 1 is a plan 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 sectional view taken along line V2-V2 in FIG.

FIG. 4 is a sectional view taken along line W1-W1 of FIG.

FIG. 5 is a sectional view taken along line W2-W2 in FIG.

FIG. 6 is a plan view showing an example of the shape and arrangement of the partition walls in the same example.

FIG. 7 is a plan view schematically showing a second example of the present invention.

8 is a sectional view taken along line V3-V3 in FIG.

FIG. 9 is a sectional view taken along line V4-V4 of FIG. 7;

FIG. 10 is a sectional view taken along line W3-W3 of FIG. 7;

FIG. 11 is a sectional view taken along line W4-W4 of FIG. 7;

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Front glass substrate (front substrate) 11 ... Dielectric layer 11A ... Raised dielectric layer (raised part) 12 ... Protective layer 13 ... Back glass substrate (rear substrate) 14 ... Dielectric layer 15, 25 ... Partition wall 15a, 25a ... vertical wall (vertical wall) 15b, 25b ... horizontal wall (horizontal wall) 15b '... divided part 15c ... chamfer 16 ... phosphor layer 25' ... black layer (light absorbing layer) 25 "... light transmitting layer 30 ... light absorbing Layer 31 ... Light absorbing layer X ... Row electrode Y ... Row electrode Xa ... Transparent electrode Ya ... Transparent electrode Xb ... Bus electrode Yb ... Bus electrode Xb ', Yb' ... Black layer (light absorbing layer) Xb ", Yb" ... White Layer (light reflecting layer) D: column electrode SL: gap C: discharge cell C ': dummy cell L: display line g: gap r: gap

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5C040 FA01 FA04 GB02 GB14 GC05 GC06 GD01 GF03 GF12 GF14 GF18 GG03 GH06 KA07 KB13 MA03 5C094 AA10 AA53 BA31 CA19 DA13 EA03 EA07 ED12 ED20 FA02 FA04 FB02 FB20

Claims (8)

[Claims] 1. A plurality of row electrode pairs extending in a row direction and arranged in a column direction to form display lines, respectively, are provided on a back side of a front substrate, and are provided through a front substrate and a discharge space of the rear substrate. On the opposing side, a plurality of column electrodes extending in the column direction and juxtaposed in the row direction and intersecting with the row electrode pair are provided in the discharge space, each constituting a discharge cell, and a phosphor layer is formed in the discharge cell. A plasma display panel having a partition disposed between the front substrate and the rear substrate to partition the discharge space for each discharge cell, wherein the partition is formed of a light-transmitting material. A plasma display panel, characterized in that: 2. The plasma display panel according to claim 1, wherein the partition partitions the discharge space in a row direction and a column direction for each discharge cell by a vertical wall portion extending in a column direction and a horizontal wall portion extending in a row direction. 3. The plasma display panel according to claim 1, wherein the translucent material is a glass material. 4. The plasma according to claim 1, wherein the partition has a light absorbing layer for absorbing light on a side of the light transmitting layer formed of the light transmitting material opposite to the front substrate. Display panel. 5. A portion of the dielectric layer formed on the back side of the front substrate so as to cover the row electrode pairs, the portion protruding toward the side wall and extending between the side wall and the portion facing the side wall. The plasma display panel according to claim 2, wherein a raised portion to be closed is formed, and a gap is formed between the raised portion and a vertical wall portion of the partition. 6. The plasma display panel according to claim 2, wherein the phosphor layer is formed on the side surfaces of the vertical wall and the horizontal wall of the partition and on the inner surface of the substrate on the back side provided with the column electrodes. 7. The plasma display panel according to claim 1, wherein a light absorbing layer is formed in a portion between the bus electrodes of the adjacent row electrodes in two display lines. 8. Each of the row electrodes forming the row electrode pair is connected to a transparent electrode facing each other via a discharge gap for each discharge cell, and to the transparent electrode at an edge opposite to the discharge gap. 2. The plasma display panel according to claim 1, comprising a bus electrode, and the transparent electrode is formed in an island shape independent for each discharge cell.