JP3120748B2 - Color plasma display panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color plasma display panel used for an information display terminal, a flat panel television, and the like, and particularly to a panel structure having high contrast and excellent color reproducibility.

[0002]

2. Description of the Related Art A color plasma display panel is
This is a display that performs a display operation by exciting and emitting a phosphor by ultraviolet light generated by gas discharge. The discharge type can be classified into an AC type and a DC type. Among them, the AC type is superior to the DC type in terms of luminance, luminous efficiency, and life, and among the AC types, the reflective AC surface discharge type has the luminance,
It is excellent in terms of luminous efficiency.

FIG. 6 is a perspective view of an example of a conventional reflective AC surface discharge color plasma display panel, and FIG.
FIG. 7A is a cross-sectional view, and FIG. 7B is a view when viewed from the display surface side. A plurality of stripe-shaped transparent electrodes 2 are formed on a transparent glass plate. In FIG. 7A, a plurality of the transparent electrodes 2 are formed in a direction parallel to the paper surface. A pulsed AC voltage of several tens of kHz to several hundreds of kHz is applied between the adjacent transparent electrodes 2 to generate a discharge and perform a display operation.

In a reflection type AC surface discharge color plasma display, a transparent conductive film such as tin oxide (SnO ₂ ) or indium tin oxide (ITO) is usually used for the transparent electrode 2 so that light emission from a phosphor is not interrupted. used. However, the sheet resistance of these transparent conductive films is high, and the electrode resistance of a large panel or a high-definition panel becomes several tens of kΩ or more, and an applied voltage pulse does not sufficiently rise or a voltage drop occurs to make driving difficult. . Therefore, a bus electrode 3 made of a metal thin film such as a multilayer thin film of chromium / copper / chrome or an aluminum thin film or a metal thick film such as silver is formed on the transparent electrode 2 so that the transparent electrode 2 and the bus electrode having a reduced resistance value. 3 are employed.

On the surface discharge electrode 23, color filter layers 6R, 6G and 6B each composed of a striped pigment fine powder layer are formed so as to be orthogonal to the surface discharge electrode 23. In general, for the color filter layers 6, a material having an optical property of transmitting only the emission color of the opposing phosphor layer 9 is selected. The color filter layers 6R, 6R
When forming the color filters G, 6B, the color filter layers 6R, 6G,
6B must be formed so that there is no gap between them. This is because if a gap is formed between the color filter layers 6R, 6G, and 6B, the reflection of external light at that portion increases, causing a decrease in bright place contrast. Further, the color filter layer 6 is covered with a transparent dielectric layer 4. The transparent dielectric layer 4 has a current limiting function peculiar to the AC plasma display. The transparent dielectric layer 4 is usually formed by applying a paste mainly composed of low melting point glass using a thick film printing method and firing at a high temperature equal to or higher than the softening point temperature from the viewpoint of securing dielectric strength and easiness of manufacturing. It is reflowed and formed to have a smooth thickness of about 20 μm to 40 μm which does not contain bubbles or the like inside.

Next, the protective layer 7 formed so as to cover the whole of the transparent dielectric layer 4 is a thin film of MgO formed by vapor deposition or sputtering or a thick film of MgO formed by printing or spraying. It is. The film thickness is about 0.5 to 1 micron. The role of the protective layer 7 is to reduce discharge voltage and prevent surface spatter.

On the other hand, a stripe-shaped data electrode 10 for writing display data is formed on the rear substrate 11. In FIG. 7A, the data electrode 10 extends in a direction perpendicular to the plane of the drawing. Is formed. That is, the data electrode 10 is orthogonal to the surface discharge electrode 23 formed on the front substrate 1. The partition 8 is formed by a normal thick film printing method so as not to overlap with the data electrode 10. The partition walls 8 have an effect of preventing erroneous discharge and optical crosstalk between the adjacent discharge cells 12. In FIG. 7A, a plurality of the partition walls are formed perpendicular to the paper surface.

Further, the partition 8, the front substrate 1, and the rear substrate 1
The phosphors 9R, 9G, and 9B corresponding to the red, green, and blue emission colors are applied to the discharge cells 12 formed of 1 in three times for each color. Each phosphor is also formed on the side surface of the partition wall 8 in order to increase the phosphor application area and obtain high luminance. Normally, screen printing is used for forming each phosphor.

Thereafter, the surface discharge electrode 2 of the front substrate 1 is formed.
3 and the data electrode 10 of the rear substrate 11 are opposed to each other via a partition wall so as to be orthogonal to each other, and the periphery thereof is hermetically sealed.
A dischargeable gas, for example, a mixed gas of He, Ne, and Xe is sealed at a pressure of about 500 torr in the inside of the chamber 2.

In FIG. 7A, each discharge cell 12 has a surface discharge electrode 23 composed of a transparent electrode 2 and a bus electrode 3.
Are arranged two by two, and a surface discharge occurs in a gap portion of the surface discharge electrode 23, and plasma is generated in each discharge cell. The phosphors 9R, 9G, and 9B are excited by the ultraviolet light generated at this time to generate red, green, and blue visible light, and display light emission is obtained through the color filter layer 6 of the front substrate 1.

Adjacent surface discharge electrodes 2 for generating surface discharge
One set of three is responsible for the scan electrode and the sustain electrode, respectively. In actual panel driving, a sustain pulse is applied between the scan electrode and the sustain electrode. To generate a write discharge, scan electrodes and data electrodes 1 are used.
A voltage is applied between the surface discharge electrodes to generate a counter discharge by applying a voltage between the surface discharge electrodes.

The body color of a phosphor used in a color plasma display panel is usually a white powder having a very high reflectance. In the case of a color plasma display panel, when indoor or outdoor light (external light) is incident on the panel, a part of the external light is absorbed by the bus electrode 3 part, but it is 30%.
About 50% is reflected, and the contrast is significantly impaired. In order to prevent the reflection of external light and obtain a display with good contrast, an ND having a transmittance of about 40 to 80% is provided on the panel surface.
Although there is a method of disposing a filter, there is a disadvantage that the panel luminance is reduced because visible light from the phosphor is partially blocked.

As a method for suppressing the reflection of external light without reducing the panel luminance as much as possible, a method using a color filter layer 6 has been conventionally proposed. This is red, green,
The front substrate 1 corresponds to the emission color of each blue discharge cell.
Color filter layer 6 that transmits red, green and blue light
Is formed. Thereby, high color reproducibility can be obtained simultaneously with high contrast.

However, the color filter layer 6 is generally composed of fine pigment particles without glass frit. For example, the following materials are considered as pigments that can transmit only red, green, and blue light.

[0015] Red: Fe ₂ 0 ₃ based _{Green: CoO-Al 2 0 3 -Cr} 2 0 3 based blue: CoO-Al ₂ 0 ₃ system The transparent dielectric layer 4 to be laminated on the color filter layer 6 As described above, the paste is generally formed by applying a paste mainly composed of a low-melting glass using a thick-film printing method, and baking the paste at a high temperature equal to or higher than the softening point. When the firing temperature of the transparent dielectric layer 4 is relatively close to the softening point of the glass component used for the transparent dielectric layer 4, the color filter layer 6 is a layer composed of pigment fine particles. The color filter layer 6 cannot be adhered, and peeling of the color filter layer 6 occurs. Further, as the firing temperature of the transparent dielectric layer 4 becomes higher than the softening point, the color filter layer 6 does not peel off, but discoloration of the color filter layer 6 and diffusion of the color filter layer 6 into the dielectric layer 4 occur. However, there is a disadvantage that the filter characteristics are deteriorated.

As described above, when a transparent dielectric layer is formed on a color filter layer, the firing temperature of the transparent dielectric layer is compared with the softening point of the glass used for the transparent dielectric layer. When the color filter layer is close to the target, since the color filter layer is a layer composed of pigment fine particles, the color filter layer cannot adhere to the transparent dielectric layer, and the color filter layer peels off. Also,
As the firing temperature of the transparent dielectric layer becomes higher than the softening point, the color filter layer does not peel off, but discoloration of the color filter layer and diffusion of the color filter layer into the dielectric layer occur.
Poor filter characteristics.

To solve the problems described above SUMMARY OF THE INVENTION The color filter layer provided on the inner side of the front substrate, the black mask as the light shielding layer so as to be positioned between the adjacent color filter layer is disposed With a transparent dielectric layer together with a transparent electrode. When the black mask is arranged on the same plane as the color filter layer, the adhesion can be increased by including the glass frit in the black mask. When the color filter layer is formed on the rear substrate side of the black mask, the color filter layers are arranged so as to be located between the black masks when viewed from the display surface side, and the widths of the color filter layers 6 are adjacent to each other. Black
The width of the mask mask is substantially the same .

According to a more specific AC color plasma display panel of the present invention, the structure of the front substrate is formed from the glass plate side to the surface discharge electrodes, the first transparent dielectric layer, the black mask, and the black mask gap. The color filter layer, the second transparent dielectric layer, and the protective layer are formed in this order. In particular, the black mask includes a glass frit.

Further, a black mask and a color filter layer are formed on the front substrate, and the color filter layer is formed on the rear substrate side of the black mask, and the color filter layer is located between the black mask when viewed from the display surface side. Formed,
The width of the color filter layer is almost the same as the width of the black mask gap.
Also characterized in that it is an.

According to the present invention, the structure of the front substrate is a surface discharge electrode, a first transparent dielectric layer, a black mask, a color filter layer formed in a gap between the black masks, and a second transparent dielectric from the glass plate side. When a black mask contains glass frit, it becomes an adhesive layer between the first transparent dielectric layer and the second transparent dielectric layer, and the color filter layer is a layer composed of pigment fine particles. Even if there is, the peeling of the color filter layer does not occur.
If this black mask does not include glass frit at all, the layer formed by the black mask and the color filter has no glass frit at all,
In this case, separation occurs in the color filter layer and the black mask. In addition, since the color filter layer does not peel off, the firing temperature of the second transparent dielectric layer can be set near the softening point of the second transparent dielectric layer. No diffusion of the layer into the first or second transparent dielectric layer takes place.

Further, a black mask and a color filter layer are formed on the front substrate, and the color filter layer is formed on the rear substrate side of the black mask, and the color filter layer is located between the black mask when viewed from the display surface side. Formed,
In the case of the present invention in which the width of the color filter layer is substantially the same as the width of the gap between the black masks, a gap of at most the width of the black mask can be formed between adjacent color filter layers. The transparent dielectric layered on the color filter layer flows into the gap between the adjacent color filter layers, and this portion becomes an adhesive portion with the transparent dielectric layer formed below the color filter layer, and the color filter layer also becomes a pigment. Even if the layer is made of fine particles, the color filter layer does not peel off and can be baked near the softening point of the transparent dielectric layer, so that the color filter layer discolors and the color filter layer diffuses into the transparent dielectric layer. Does not wake up. Further, by providing the black mask, it is possible to prevent a decrease in light place contrast even if a gap is formed between adjacent color filter layers.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a color plasma display panel according to the present invention will be described below with reference to the drawings. <Embodiment 1> In this first embodiment, the structure of the front substrate is changed from a glass plate side to a transparent electrode, a bus electrode, a first transparent dielectric layer, a black mask, and a color filter formed in a gap between the black masks. The method for forming the front substrate when the layer, the second transparent dielectric layer, the protective layer, and the black mask includes glass frit will be described.
However, in this example, the black mask had a stripe pattern perpendicular to the transparent electrode or the bus electrode and parallel to the color filter layer. FIG. 1A shows a cross-sectional structure of the panel at this time, and FIG.
(B). 1A, a data electrode 10, a partition 8 and phosphors 9R, 9G, 9B are sequentially formed on a glass plate in the same manner as in the conventional example. The discharge cells 12 for obtaining each luminescent color were constituted by the data electrodes 10 and the surface discharge electrodes 23 of the front substrate 1 facing each other via the partition walls 8.

On the other hand, the front substrate 1 comprises a transparent electrode 2, a bus electrode 3, a first transparent dielectric layer 41, a black mask 5, color filter layers 6R, 6G, 6B, and a second transparent dielectric layer 4.
2 and a protective layer 7 are formed. At this time, the color filter layer 6
R, 6G, and 6B are formed at black mask intervals (gap) 51.

First, a solid transparent conductive film is formed on the front substrate 1. As this transparent conductive film, tin oxide (SnO ₂ ), indium tin oxide (ITO), or the like can be considered. In this example, ITO was used. Also, as a film forming method,
A sputtering method, a CVD method, or a printing method using a pasted material can be considered, but in this example, the film was formed by the sputtering method. The film thickness is 100 to 200 nm
It was about the thickness. After a transparent conductive film is solidly formed, a resist is applied, dried, exposed and developed, and then etched to form a shape as an electrode. Thereby, the transparent electrode 2 is formed. Next, as described in the conventional example, since the resistance value of the transparent electrode 2 is as high as several tens kΩ or more, the bus electrode 3 having a low resistance value is formed. As a material of the bus electrode 3, chromium / copper / chromium, aluminum, silver or the like can be considered. In this example, silver was used. Also, as a forming method, a thin film by a sputtering method and a thick film by a printing method can be considered. In this example, since silver was used, the film was formed by a printing method which is a thick film technique. At this time, since a paste obtained by mixing an organic solvent and a resin with a mixture of silver powder and glass powder was used, a pattern was formed by a printing method, and then 500 to 600 ° C.
The organic solvent and resin in the paste were burned by baking so as not to remain in the pattern, and the glass in the paste was softened once by the same baking, whereby the adhesion of the bus electrode 3 could be obtained. The thickness of the bus electrode 3 after firing was about 6 microns.

After forming the bus electrode 3, a first transparent dielectric layer 41 is formed. The first transparent dielectric layer 41 is formed by printing a paste of low melting point glass by a screen printing method, and
It was formed by firing at 〜600 ° C. At this time, the film thickness after firing needs to be high enough to cover the entire bus electrode 3, and in this example, it was about 10 microns.

Next, a black mask 5 is formed thereon. The black mask 5 was formed by printing a paste obtained by adding a black pigment to low-melting glass by a screen printing method. Further, the black mask 5 was made to be orthogonal to the transparent electrode 2 or the bus electrode 3.

After printing and drying the black mask 5, a color filter layer 6 is formed in the black mask gap 51. The formation was performed by a screen printing method.

First, a paste in which a binder and a solvent are mixed with a red fine particle pigment mainly composed of iron oxide is printed in a stripe shape. The pattern plate opening width of the screen plate used for printing was narrower than the width actually formed. In this example, the formation width of the color filter layer 6R is about 250
The pattern width of the actual screen plate was about 100 microns with respect to microns, and a paste having a low viscosity was used in which the binder and the solvent of the color filter paste were increased. Thereby, the pattern width of the screen plate is 1
The paste flowing out from 00 micron spreads in the black mask gap 51 and forms a width of about 250 micron.
However, at this time, since the black mask 5 is present, the paste for the color filter does not spread further.
After printing the paste, the solvent was evaporated at about 150 ° C. and dried.

Next, a paste prepared by blending a binder and a solvent with a green fine particle pigment mainly containing oxides of cobalt, chromium and aluminum is used, and a paste next to the red pigment pattern already printed in the black mask gap 51 is used. Printing is performed in the black mask gap 51. At this time, as in the case of the red pigment, printing was performed using a paste having reduced viscosity by blending a screen plate having a pattern width smaller than the pattern width actually formed, a bander and a solvent in a large amount. After printing the green pigment, the solvent was evaporated at about 150 ° C. and dried.

Finally, a paste prepared by mixing a binder and a solvent with a blue pigment mainly containing an oxide of cobalt and aluminum is used, and the paste between the green pigment pattern and the red pigment pattern already printed in the black mask gap 51 is used. Printing is performed in the black mask gap 51. Also at this time, like the red pigment and the green pigment, a screen plate having a pattern width smaller than the actually formed pattern width, a bander and a solvent were mixed in a large amount, and printing was performed using a paste having a reduced viscosity. After printing the green pigment, the solvent was evaporated at about 150 ° C. and dried.

After printing the red, green and blue pigments,
The firing was performed at a temperature of 600 ° C.

Next, a second transparent dielectric layer 42 is formed thereon. Similarly to the first transparent dielectric layer 41, the second transparent dielectric layer 42 was formed by printing a paste of low-melting glass by a screen printing method and baking the paste at 500 to 600 ° C. The film thickness after firing was about 20 microns. After the formation of the second transparent dielectric layer 42, the protective layer 7 made of MgO is formed so as to cover the entire second transparent dielectric layer 42.
To form MgO is formed by a vapor deposition method, and the film thickness is set to 0.1.
5 to 1 micron.

Thus, the front substrate 1 is formed, and a panel is formed by combining the front substrate 1 with the rear substrate 11. However, it goes without saying that the colors of the color filter layers 6R, 6G, 6B formed on the front substrate 1 and the emission colors of the phosphors 9R, 9G, 9B formed on the rear substrate 11 match.

As a result, no peeling or discoloration occurred in the color filter layer 6. Further, when this panel was operated, no color mixing between the color filters occurred, so that the color purity did not decrease and good contrast could be obtained in a bright place.

In this embodiment, the black mask 5 is formed in a stripe pattern perpendicular to the transparent electrode 2 or the bus electrode 3 and parallel to the color filter layer 6. However, the same effect can be obtained with a pattern shape other than the stripe pattern. Needless to say, this is obtained. <Second Embodiment> In the second embodiment, a structure and a forming method when a color filter layer formed on a front substrate is formed on a rear substrate side with respect to a black mask will be described. Specifically, the structure of the front substrate is changed from the glass plate side to a transparent electrode, a bus electrode, a black mask, a first transparent dielectric layer,
The color filter layer, the second transparent dielectric layer and the protective layer were used. However, also in this example, the black mask had a stripe pattern perpendicular to the transparent electrode or the bus electrode and parallel to the color filter layer. FIG. 2 shows a sectional structure of the panel at this time. On the rear substrate of FIG. 2, data electrodes 10, partition walls 8, and phosphors 9R, 9G, and 9B are sequentially formed on a glass plate as in the conventional example. The discharge cells 12 for obtaining each luminescent color were constituted by the data electrodes 10 and the surface discharge electrodes 23 of the front substrate 1 facing each other via the partition walls 8.

On the other hand, the front substrate 1 comprises a transparent electrode 2, a bus electrode 3, a black mask 5, a first transparent dielectric layer 41, color filter layers 6R, 6G, 6B, and a second transparent dielectric layer 4.
2 and a protective layer 7 are formed. At this time, the color filter layer 6
R, 6G and 6B are formed in the black mask gap 51.

First, a transparent electrode 2 and a bus electrode 3 are formed on a front substrate 1. The forming method is the same as in the first embodiment, and a description thereof will be omitted.

After forming the bus electrode 3, a black mask 5 is formed. The black mask 5 was formed by printing a paste obtained by adding a black pigment to low-melting glass by a screen printing method. Black mask 5
Is perpendicular to the surface discharge electrode 23 composed of the transparent electrode 2 and the bus electrode 3. After printing the black mask, it was dried and baked at 500 to 600 ° C. The film thickness after firing is about 5
Microns.

Next, a first transparent dielectric layer 41 is formed thereon. The first transparent dielectric layer 41 is formed by printing a paste of low-melting glass by a screen printing method,
Formed by firing. At this time, the film thickness after firing needs to be high enough to cover all of the bus electrodes 3 and the black mask 5. In this example, it was about 10 microns.

After forming the first transparent dielectric layer 41, the color filter layer 6 is formed. The formation was performed by a screen printing method, and printing was performed so as to be orthogonal to the surface discharge electrode 23 including the transparent electrode 2 and the bus electrode 3 and to be parallel to the black mask 5.

First, a paste in which a binder and a solvent are mixed with a red fine particle pigment mainly composed of iron oxide is printed in a stripe shape. The pattern width after printing was set to be 0 to 30 μm wider than the width of the black mask gap 51.
After printing, the solvent was evaporated at about 150 ° C. and dried.

Next, using a paste in which a binder and a solvent are mixed with a green fine particle pigment mainly containing oxides of cobalt, chromium, and aluminum, printing is performed in parallel with the already printed red pigment pattern, dry. At this time, similarly to the printing of the red pigment, the pattern width after printing was set to be 0 to 30 μm wider than the width of the black mask gap 51.

Finally, using a paste prepared by mixing a binder and a solvent with a blue pigment mainly containing oxides of cobalt and aluminum, printing is performed in parallel between the already printed red pigment pattern and green pigment pattern, followed by drying. I do. At this time, similarly to the printing of the red pigment and the green pigment, the pattern width after printing was set to 0 to 30 μm wider than the width of the black mask gap 51.

The portion corresponding to the display portion was entirely covered with pigments of each color by the three times of pigment printing, and then baked. The thickness of the color filter layer after firing was about 2 microns for all three colors. The particle size of the used inorganic pigment particles is 0.01 to 0.1.
It is a very fine and dense layer of about 05 microns.

Next, a second transparent dielectric layer 42 is formed thereon. Similarly to the first transparent dielectric layer 41, the second transparent dielectric layer 42 was formed by printing a paste of low-melting glass by a screen printing method and baking the paste at 500 to 600 ° C. The film thickness after firing was about 20 microns. After the formation of the second transparent dielectric layer 42, the protective layer 7 made of MgO is formed so as to cover the entire second transparent dielectric layer 42. MgO was formed by a vapor deposition method, and the film thickness was 0.5 to 1 μm.

Thus, the front substrate 1 is formed, and a panel is formed by combining the front substrate 1 with the rear substrate 11. However, it goes without saying that the colors of the color filter layers 6R, 6G, 6B formed on the front substrate 1 and the emission colors of the phosphors 9R, 9G, 9B formed on the rear substrate 11 match.

As a result, color mixing of the color filter layers 6 can be avoided, and the second transparent dielectric layer 42 formed between the color filter layers 6 and the first transparent dielectric layer formed below the color filter layers 6 can be formed. Because the dielectric layer 41 adhered,
Since the color filter layer 6 did not peel off and the firing temperature of the second transparent dielectric layer 42 was near the softening point, the color filter layer 6 did not undergo discoloration, and the color purity was good and the light was good. A color plasma display panel capable of realizing a good contrast was obtained.

In this embodiment, the black mask 5 is formed on the transparent electrode 2 and the bus electrode 3, and the color filter layer 6 is formed between the first transparent dielectric layer 41 and the second transparent dielectric layer 42. However, the following can be considered as a structure of the front substrate that can obtain the same effect. First, from the glass plate side, the transparent electrode 2, bus electrode 3, first transparent dielectric layer 41, black mask 5, second transparent dielectric layer 42, color filter layer 6, third transparent dielectric layer 43, and protection A method of laminating with the layer 7 (FIG. 3). Further, a method of laminating the black mask 5, the first transparent dielectric layer 41, the transparent electrode 2, the bus electrode 3, the color filter layer 6, the second transparent dielectric layer 42, and the protective layer 7 from the glass plate side ( (Fig. 4). Further, from the glass plate side, the black mask 5, the first transparent dielectric layer 41, the transparent electrode 2, the bus electrode 3, the second transparent dielectric layer 42, the color filter layer 6, the third transparent dielectric layer 43, And protective layer 7
(FIG. 5). In each case, it goes without saying that the same effect as in the present embodiment can be obtained.

Further, in this embodiment, the black mask 5
Was performed with a stripe pattern perpendicular to the transparent electrode 2 or the bus electrode 3 and parallel to the color filter layer 6, but it goes without saying that a similar effect can be obtained with a pattern shape other than the stripe pattern.

As described above, according to the present invention, the structure of the front substrate is changed from the glass plate side to the surface discharge electrode, the first transparent dielectric layer, the black mask and the color filter layer formed in the gap between the black masks. In the case of using the transparent dielectric layer and the protective layer of No. 2, the glass mask is contained in the black mask, so that this becomes an adhesive layer between the first transparent dielectric layer and the second transparent dielectric layer, and the color filter layer Does not occur in the color filter layer even if is a layer composed of pigment fine particles. In addition, since the color filter layer does not peel off, the firing temperature of the second transparent dielectric layer can be set near the softening point of the second transparent dielectric layer. No diffusion of the layer into the first or second transparent dielectric layer takes place.

Further, a black mask and a color filter layer are formed on the front substrate, and the color filter layer is formed on the rear substrate side of the black mask, and the color filter layer is located between the black mask when viewed from the display surface side. Formed,
When the width of the color filter layer is substantially the same as the width of the black mask gap, a gap of at most the width of the black mask can be opened between adjacent color filter layers. The transparent dielectric layered on the color filter layer flows into the gap between the adjacent color filter layers, and this portion becomes an adhesive portion with the transparent dielectric layer formed below the color filter layer, and the color filter layer also becomes a pigment. Even if the layer is made of fine particles, the color filter layer does not peel off and can be baked near the softening point of the transparent dielectric layer, so that the color filter layer discolors and the color filter layer diffuses into the transparent dielectric layer. Does not wake up. Further, by providing the black mask, it is possible to prevent a decrease in light place contrast even if a gap is formed between adjacent color filter layers.

[Brief description of the drawings]

FIG. 1A is a cross-sectional view of a color plasma display panel according to a first embodiment of the present invention. FIG. 2B is a diagram viewed from the display surface side of the color plasma display panel according to the first embodiment of the present invention.

FIG. 2 is a sectional view of a color plasma display panel according to a second embodiment of the present invention.

FIG. 3 is a sectional view of a color plasma display panel according to a second embodiment of the present invention.

FIG. 4 is a sectional view of a color plasma display panel according to a second embodiment of the present invention.

FIG. 5 is a sectional view of a color plasma display panel according to a second embodiment of the present invention.

FIG. 6 is a perspective view of a conventional color plasma display panel.

FIG. 7A is a cross-sectional view of a conventional color plasma display panel. (B) It is the figure seen from the display surface side of the conventional color plasma display panel.

[Explanation of symbols]

 Reference Signs List 1 front substrate 2 transparent electrode 3 bus electrode 23 surface discharge electrode 4 transparent dielectric layer 41 first transparent dielectric layer 42 second transparent dielectric layer 43 third transparent dielectric layer 5 black mask 51 black mask interval ( (Gap) 6 Color filter layer 6R Red color filter layer 6G Green color filter layer 6B Blue color filter layer 7 Protective layer 8 Partition wall 9 Phosphor layer 9R Red phosphor layer 9G Green phosphor layer 9B Blue phosphor layer 10 Data electrode 11 Rear surface Substrate 12 Discharge cell

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-6-267431 (JP, A) JP-A-8-220341 (JP, A) JP-A-62-154435 (JP, A) JP-A-7- 21924 (JP, A) JP-A-6-5204 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01J 11/00-11/02 G02B 5/20 101

Claims (9)

(57) [Claims] A counter electrode plate for forming a discharge cell;
In a color plasma display panel in which a transparent electrode and a color filter layer covered with a dielectric are arranged on one discharge cell side of the counter electrode plate, the same color filter layer is arranged so that a light-shielding layer is located in a gap between adjacent color filter layers. The color filter layer and the light shielding layer are formed in a plane, and are sandwiched between a first dielectric covering the transparent electrode and a second dielectric layer directly covering the color filter layer and the light shielding layer. A color plasma display panel. 2. The color plasma display panel according to claim 1, wherein the light-shielding layer contains a material having high adhesion to a first dielectric that directly covers the transparent electrode. 3. It has a counter electrode plate forming a discharge cell,
In a color plasma display panel in which a transparent electrode and a color filter layer covered with a dielectric material are arranged on the discharge cell side of one of the counter electrode plates, the light-shielding layer is closer to the transparent electrode than the surface on which the color filter layer is formed. The color filter layer is formed and disposed at a position facing the gap between the adjacent color filter layers, and is covered with a first dielectric layer covering the transparent electrode, and the color filter layer is further provided with the first dielectric layer. A color plasma display panel formed thereon and covered with a second dielectric layer. 4. The color plasma according to claim 3, wherein a width of the color filter layer is substantially the same as a width of an interval between the light shielding layers adjacent to each other across a position facing the color filter layer. Display panel. 5. An electrode substrate on a side on which the color filter layer is disposed, wherein the light-shielding layer is formed on the substrate and is covered with a first dielectric layer, and a transparent electrode is formed on the first dielectric layer. The color according to claim 1, wherein the color filter layer is formed on the transparent electrode, and the color filter layer is covered with a second dielectric layer. Plasma display panel. 6. A common third dielectric layer is disposed between the transparent electrode and the color filter layer and between the transparent electrode and the second dielectric layer. The color plasma display panel according to claim 5. 7. A pair of at least one surface discharge electrode group including a transparent electrode and a bus electrode formed so as to be in contact with at least a part thereof, and a transparent dielectric layer formed on the surface discharge electrode group. An AC surface discharge type color plasma display panel comprising: a first substrate having: a first electrode; a second substrate having a data electrode, a partition for obtaining a discharge space, and a phosphor that emits visible light of a plurality of colors. From the substrate side, the surface discharge electrode group, the first transparent dielectric layer,
A color plasma display panel comprising: a black mask, a color filter layer formed between the black masks, and a second transparent dielectric layer, wherein the black mask includes a glass frit. 8. A pair of at least one surface discharge electrode group including a transparent electrode and a bus electrode formed so as to be at least partially in contact with the transparent electrode, and a transparent dielectric layer formed on the surface discharge electrode group. And a second substrate having a data electrode, a partition for obtaining a discharge space and a phosphor, and a second substrate having a phosphor, wherein the first substrate has a black mask and a color. Forming a color filter layer on the second substrate side with respect to the black mask, wherein the color filter layer is formed between the black masks when viewed from a display surface side; width of the filter layer is the Bed
A color plasma display panel having a width substantially equal to a width between rack masks . 9. It has a counter electrode plate forming a discharge cell,
In a color plasma display panel in which a transparent electrode and a color filter layer covered with a dielectric are arranged on the discharge cell side of one of the counter electrode plates, a first covering the transparent electrode
A light-shielding layer is formed so as to be located in a gap between the adjacent color filter layers, and a second dielectric layer that directly covers the color filter layer and the light-shielding layer is formed on the dielectric layer. A color plasma display panel.