JP2000164138A - Member for plasma display panel, and plasma display panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a member for plasma display panel required for improving luminance of a plasma display panel. SOLUTION: This member for plasma display panel is a substrate for color display plasma display obtained by forming barrier ribs for separating an address electrode and a discharge space into stripe on a substrate, and forming phosphor layers for emitting the red, green and blue light in grooves between adjacent barrier ribs into stripe. In this substrate for color display plasma display, the phosphor layers for emitting the same color light are formed in adjacent two or more grooves.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel used for a large-sized television or computer monitor, and a back panel for the plasma display panel constituting the plasma display panel.

[0002]

2. Description of the Related Art In recent years, plasma displays have attracted attention as large displays. In a display involving plasma discharge such as a plasma display, a partition is formed as a partition of each pixel in order to suppress color crosstalk and the like.

FIG. 3 shows an example of the structure of a plasma display panel. The plasma display panel has a front plate and a back plate bonded together. The front plate has a discharge electrode 3 'made of ITO or tin oxide on the back surface of a front glass substrate 1'. Usually, a metal bus electrode is formed on the discharge electrode 3 'to reduce the resistance value. These electrodes are covered with a transparent dielectric 2 ', which is made of lead glass or low-melting glass containing bismuth. Further thereon, an MgO layer is formed as a protective film 4 'by an electron beam evaporation method.

On the other hand, as shown in FIG. 2, an address electrode 7 'for writing display data is formed on a back glass substrate 6', and the back electrode is covered with a dielectric layer. Forming a white or black partition wall 5 ', red, green,
After applying phosphors emitting blue light, the phosphors are dried and fired to perform red phosphor layer 8 ', green phosphor layer 9', and blue phosphor layer 10 '.
Is formed.

The above-mentioned front plate and back plate are aligned so as to enable matrix driving, sealed, and then evacuated.
A mixed gas of e, Ne, and Xe is sealed, and a drive circuit is mounted to manufacture a plasma display panel. When a pulsed AC voltage is applied between the adjacent discharge electrodes 3 ', gas discharge occurs and plasma is formed. The ultraviolet light generated here excites the phosphor to emit visible light and obtain display light emission through the front plate. The discharge electrode 3 'is composed of a scan electrode and a sustain electrode. In actual driving of the panel, a sustain discharge pulse is applied to the discharge electrode 3 ′, and when a discharge is to be generated, a voltage is applied between the discharge electrode 3 ′ and the address electrode 7 ′ on the back plate to generate a counter discharge. This discharge is maintained between the discharge electrodes by the sustain pulse.

Conventionally, a phosphor layer formed on a back plate is
Red, green, and blue are repeatedly formed, and color display is made possible by controlling the light emission of each of these colors. However, heretofore, there has been a problem that sufficient luminance cannot be obtained due to low luminous efficiency.

On the other hand, for example, Japanese Patent Application Laid-Open No. 6-243789 discloses a plasma display panel of a type in which a phosphor layer is formed on the side surface of a partition, but this also does not lead to a drastic improvement in luminous efficiency. Did not.

[0008]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a plasma display panel having high luminous efficiency and high luminance, and a member thereof.

[0009]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a stripe-shaped partition for partitioning an address electrode and a discharge space on a substrate.
In a plasma display substrate having a phosphor layer emitting blue light in a stripe shape, a phosphor layer emitting light of the same color is formed in two or more adjacent grooves and a member for a plasma display panel. This is achieved by the plasma display panel used.

In a conventional structure in which red, green, and blue phosphor layers are sequentially arranged one by one between partition walls, it is difficult to increase the formation area of the phosphor layer per unit area of the substrate. . In order to solve this problem, the present inventors have found that the phosphor layer is formed not only on the bottom surface of the groove between the partition walls but also on the side surface of the partition wall, so that the surface area becomes large, and the substrate becomes smaller than when the partition wall is small. We focused on improving the efficiency of light emission per unit area. Then, between the partition walls forming the red, green, and blue phosphor layers, by further adding partition walls, that is, by forming a phosphor layer that emits the same color between adjacent partition walls, a unit of the substrate is formed. It has been found that the formation area of the phosphor layer per area is enlarged to improve the luminance.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a plasma display panel according to the present invention will be described in detail.

As shown in FIG. 1, the back plate of the plasma display panel of the present invention includes a back plate substrate 6 and
It comprises an address electrode 7, a partition 5, a red phosphor 8, a green phosphor 9 and a blue phosphor 10. The partition 5 is formed on a dielectric layer formed on the address electrode 7.

The substrate used for the back plate of the present invention is preferably a glass substrate, particularly soda lime glass or a heat-resistant glass developed for a plasma display panel (PD200 manufactured by Asahi Glass, PP8 manufactured by Nippon Electric Glass, Saint-Gobain). And the like can be preferably used. Further, an electrode is formed of a metal or the like on the substrate, and other wirings or the like may be formed.

The address electrode is an electrode formed to determine a position for discharge display.
A conductor containing at least one metal of silver, copper, chromium, aluminum, nickel and palladium is desirable. The address electrode of the present invention may have a structure in which two or more adjacent address electrodes are connected to each other when the phosphor layers formed on these address electrodes emit light of the same color. . As a method of forming the address electrode layer, a paste composed of a metal powder such as silver and a binder such as ethyl cellulose is printed on a substrate using a screen printing plate, or a method of printing a paste composed of a metal powder and a photosensitive organic component. There is a method of forming an electrode pattern through the exposure and development steps after the application of the conductive silver paste, and the address electrode can be formed by firing the electrode pattern at 500 to 600 ° C.

The dielectric layer is formed for the purpose of protecting the address electrode, improving the adhesion between the partition and the substrate, improving the reflectance of the phosphor layer, and the like. As the dielectric material, a heat softening temperature of 40
It is preferable to use an insulating material mainly containing a glass material at 0 to 550 ° C., and titanium oxide, zirconium oxide,
By adding 5 to 50% by weight of a component such as aluminum oxide, the reflectance can be improved. As a method of forming the dielectric layer, a glass paste composed of a glass powder and a binder such as ethyl cellulose is applied by screen printing, a roll coater, a die coater, or the like, and then, is applied.
It can be formed by firing at 0 to 600 ° C.

The partition walls are formed to maintain a constant distance between the front plate and the back plate and to secure a discharge space. Further, the conventional partition walls are formed to partition the phosphor layers that emit red, green, and blue light. However, the partition walls according to the present invention not only partition the phosphor layers that emit light of each color, but also apply a phosphor. It is formed in order to improve the area and to effectively utilize the ultraviolet rays generated by the discharge.

As a material for the partition wall, a heat softening temperature of 400 to 5
It is preferable to use an insulating material mainly composed of a glass material at 50 ° C., and add a high melting point glass material having a thermal softening temperature of 600 to 800 ° C., and a ceramic material such as titanium oxide, zirconium oxide, and aluminum oxide in an amount of 5 to 50% by weight. By doing so, it is possible to improve the reflectance and the light shielding property.

In the present invention, the shape of the partition wall is 50 to
A stripe shape having a line width of 200 μm and a line width of 15 to 120 μm is preferable. By setting the height to 50 μm or more, a sufficient discharge space can be secured. Further, when the thickness is 200 μm or less, the ultraviolet light generated by the discharge reaches the phosphor, and the luminance can be maintained. When the line width is 15 μm or more, discharge or light does not leak to an adjacent cell, and display quality can be maintained. When the line width is 120 μm or less, a discharge space can be secured. In addition, the height of the partition wall is the following between the partition height a between the cells on which the phosphor layers emitting the different colors are formed and the partition height b between the cells on which the phosphor layers emitting the same color are formed. It is good to satisfy the relationship.

-5 .mu.m.ltoreq.ab.ltoreq.40 .mu.m By setting ab to -5 .mu.m or more, it is possible to prevent the emission color of the phosphor from leaking to cells emitting different colors. Further, when the thickness is 40 μm or less, it is possible to obtain an effect of improving luminance by enlarging the area of the phosphor layer.

Further, the distance (pitch) between the partition walls when forming the stripe-shaped partition walls is preferably 50 to 300 μm. When the thickness is 50 μm or more, a discharge space can be secured, and when the thickness is 300 μm or less, a pixel can be made fine and a dense display can be formed. In this case, the pitch between the adjacent partition walls may be changed according to the color forming the red, green, and blue phosphor layers.

As a method of forming the partition, there are a multilayer screen printing method, a sand blast method, a lift-off method, a mold transfer method, and a photosensitive paste method. In order to form a partition having a high definition and a high aspect ratio, a photosensitive material is used. The paste method is preferred. Hereinafter, each method will be described with examples.

In the multilayer screen printing method, a paste containing glass powder is fired after multilayer printing on a substrate by a multilayer screen printing method using a screen plate.

In the sand blast method, after the paste is applied on the substrate so as to have a thickness of 30 to 170 μm after firing,
Laminate the dry film resist on the paste,
After pattern exposure and development using a photomask, unnecessary portions of the paste are removed by sandblasting. Next, the dry film resist remaining on the paste is removed, and baking is performed to form a partition. A heating step for the purpose of drying, curing, debinding, and firing may be added during the step.

In the lift-off method, after laminating a film resist on a substrate, performing pattern exposure and development, embedding a paste containing glass powder in a portion where the resist has been removed, removing unnecessary resist portions, and baking. This is a method of forming a partition pattern.

In the mold transfer method, a paste containing glass powder is applied onto a substrate, and then a mold or a silicone mold having a groove corresponding to the partition pattern is pressed onto the paste, and the paste is pressed. To form
Thereafter, baking can be performed to form partition walls. A heating step for the purpose of drying, baking, and removing the binder may be added during the step.

Next, the most preferable photosensitive paste method is described as a method of forming the partition in the present invention. In the photosensitive paste method, after a photosensitive glass paste containing a photosensitive organic component and glass powder as main components is applied on a substrate, pattern exposure is performed through a photomask, unnecessary portions are removed by development, and firing is performed. This is a method of forming a partition wall. This method has simple steps and can realize highly accurate pattern processing.

The photosensitive paste is usually prepared by mixing glass fine particles and organic components (various components such as an ultraviolet absorber, a photosensitive polymer, a photosensitive monomer, a photopolymerization initiator, and a solvent) so as to have a predetermined composition. 3. Mix and disperse uniformly with three rollers or a kneader to produce.

When the photosensitive paste method is used, if the average refractive index of the organic component in the paste is significantly different from the average refractive index of the glass particles, light scattering occurs inside the paste, so that high-precision pattern processing is performed. Tends to be difficult. Therefore, it is preferable to control the refractive index of the glass fine particles and the organic component in that light scattering can be suppressed. Specifically, by setting the difference between the average refractive index of the glass microparticles and the average refractive index of the organic component to 0.1 or less, pattern processing with a high aspect ratio and high accuracy can be performed. As a method for matching the refractive index of the organic component with the glass powder, it is preferable to use a glass powder having a refractive index of 1.5 to 1.7 in that the range of selection of the organic component is widened.

On the other hand, when forming the partition walls, it is preferable that the thermal softening temperature of the glass component is 350 to 600 ° C. in order to perform firing on a glass substrate for debinding and sintering. By setting the thermal softening temperature to 350 ° C. or higher, the partition walls are not softened and deformed in the sealing step of the plasma display panel. By setting the temperature to 600 ° C. or less,
The dimensional accuracy can be maintained without deformation of the glass substrate.

The above-mentioned glass having a refractive index of 1.5 to 1.7 and a thermal softening temperature of 600 ° C. or less contains, for example, 2 to 20% by weight of an alkali metal or an oxide of an alkali metal. can get. Further, by containing an alkali metal or an oxide of an alkali metal in an amount of 3 to 20% by weight, it becomes easy to control the thermal expansion coefficient, the temperature characteristics, and the refractive index. In consideration of practical use as a display panel, the content of an alkali metal or an oxide of an alkali metal is preferably set to 20% by weight or less in order to suppress water absorption.

By using bismuth oxide or lead oxide in the glass component in an amount of 30% by weight or less, more preferably 20% by weight or less, various properties can be controlled by adding a small amount of alkali metal oxide. It becomes easier to do.

As the oxide of the alkali metal, at least one selected from potassium oxide, sodium oxide and lithium oxide can be used. In particular, from the viewpoint of the pot life of the paste, it is preferable to use lithium oxide.

Further, in the glass component, silicon oxide is 3 to
It is preferred to be blended in the range of 60% by weight, more preferably 20 to 60% by weight. By setting the content to 3% by weight or more, the denseness, strength and stability of the glass layer are improved, and the coefficient of thermal expansion can be set within a desired range, so that mismatch with the glass substrate hardly occurs. Further, by setting the content to 60% by weight or less, it is possible to suppress an increase in the thermal softening point and facilitate baking on a glass substrate.

As the glass component used in the photosensitive paste, 50% by weight particle diameter is 1 to 7 μm, 10% by weight particle diameter is 0.4 to 2 μm, 90% by weight particle diameter is 4 to 10 μm,
Glass fine particles having a specific surface area of 0.2 to ³ m ² / g are suitable.

Further, by adding glass particles or ceramic particles having a heat softening temperature of 600 ° C. or more to the photosensitive paste in a range of 40% by weight or less, the shrinkage during firing can be suppressed. However, in this case, the difference between the average refractive index of glass particles or ceramic particles having a thermal softening temperature of 600 ° C. or higher and the average refractive index of glass used as the main component is 0.1 or less, and further 0.05 or less. This is important for accurate pattern formation.

Further, by containing a black inorganic pigment in the paste, a black partition wall can be formed. Ru, Mn, Ni,
Those containing a metal of Cr, Fe, Co, Cu or an oxide thereof in a total amount of 1 to 15% by weight, preferably 2 to 10% by weight can be preferably used. Separately, a black inorganic pigment may be added to the paste. The black inorganic pigment to be added preferably has a particle size of 0.1 to 5 μm, and Ru, M
By including at least 20% by weight of at least one metal selected from n, Ni, Cr, Fe, Co, and Cu, sufficient blackness can be obtained and the OD value can be increased.

On the other hand, the paste contains, as an organic component, a photosensitive component selected from at least one of a photosensitive monomer, a photosensitive oligomer, and a photosensitive polymer.
Further, if necessary, a binder, a photopolymerization initiator, an ultraviolet light absorber, a sensitizer, a sensitization aid, a polymerization inhibitor, a plasticizer, a thickener, an organic solvent, an antioxidant, a dispersant, an organic or inorganic An additive component such as a precipitation inhibitor or a leveling agent may be added.

Next, the pattern processing method of the partition wall of the plasma display in the photosensitive paste method will be described in more detail with reference to an example. However, the present invention is not limited to this.

On a glass substrate or a polymer film, a photosensitive paste is applied entirely or partially.
As a coating method, a general method such as screen printing, a bar coater, and a roll coater can be used. The coating thickness can be adjusted by selecting the number of coatings, the mesh of the screen, and the viscosity of the paste. However, in consideration of shrinkage due to drying and baking, it is preferable to apply the coating with a thickness of about 60 to 300 μm after drying. Further, when applied on a polymer film, the film can be easily applied on the glass substrate by attaching a film-shaped photosensitive paste sheet (photosensitive green sheet) on the glass substrate.

After application, exposure is performed using an exposure device. As the exposure, a method of performing a mask exposure using a photomask and a method of performing direct drawing exposure with a laser beam or the like can be used. However, the exposure using the photomask can shorten the exposure time. As an exposure apparatus in this case, a stepper exposure machine, a proximity exposure machine, or the like can be used. The mask used depends on the type of photosensitive organic component.
Select either negative or positive type.

The active light source used at this time is, for example,
Visible light, near-ultraviolet light, ultraviolet light, electron beam, X-ray, laser light, etc. are preferable, and among them, ultraviolet light is preferable. Etc. can be used. Among these, an ultra-high pressure mercury lamp is preferred.
Exposure conditions vary depending on the coating thickness, but 0.5 to 100
0.5 to 3 using an ultra-high pressure mercury lamp having an output of mW / cm ^2.
Exposure is performed for 0 minutes. Particularly, when the exposure amount is 0.05 to 0.5 J
/ Cm ² is preferably performed.

Thereafter, development is performed using a developing solution.
In this case, an immersion method, a spray method, or a brush method is used. As the developer, an organic solvent in which the organic components in the paste can be dissolved can be used. Water may be added to the organic solvent as long as the solvent does not lose its solubility. When a compound having an acidic group such as a carboxyl group is present in the paste, development can be performed with an aqueous alkali solution. As the alkaline aqueous solution, a metallic alkaline aqueous solution such as sodium hydroxide, calcium hydroxide, or sodium carbonate aqueous solution can be used. However, it is preferable to use an organic alkaline aqueous solution because the alkaline component can be easily removed during firing. As the organic alkali, a general amine compound can be used. Specific examples include tetramethylammonium hydroxide, trimethylbenzylammonium hydroxide, monoethanolamine, diethanolamine and the like. The concentration of the alkaline aqueous solution is preferably 0.01 to 10% by weight, more preferably 0.1 to 5% by weight. If the alkali concentration is too low, unexposed portions are not removed, and if the alkali concentration is too high, the pattern portions tend to peel off and corrode the exposed portions. The temperature of the developing solution is preferably 20 to 50 ° C. in terms of process control.

Next, firing is performed in a firing furnace. The firing atmosphere and temperature vary depending on the type of the paste and the substrate, but firing is performed in an atmosphere of air, nitrogen, hydrogen, or the like. The firing temperature is 400 to 610 ° C. As the firing furnace, a batch-type firing furnace or a belt-type continuous firing furnace can be used.

In each of the above steps, a heating step at 50 to 300 ° C. may be introduced for the purpose of drying and preliminary reaction.

A phosphor layer is formed on the side surfaces of the formed partition walls and between the partition walls. Normally three times the required number of pixels (RGB
The number of partition walls close to the number of (for three colors) is formed.

The emission luminance of the phosphor increases as the area of the phosphor layer formed increases. In the present invention, a technique for enlarging the phosphor formation area by increasing the area of the side surface of the partition wall has been found. In order to increase the area of the partition side,
Four to twelve times as many partitions as necessary pixels are formed, and phosphor layers are formed on the side surfaces of the partitions. In other words, a structure in which phosphor layers emitting light of the same color are formed in adjacent cells. Thereby, the formation area of the phosphor layer can be increased.

For example, a blue phosphor layer is formed on adjacent partitions between stripe-shaped partitions, that is, RGBBRGB.
By forming the phosphor layers in the order of BRGBBRGB,..., The emission luminance of blue light can be improved. In addition, two of each color, that is, RRGGBBRRGGB
By forming them in the order of BRRGGBB..., The emission luminance of each color can be improved. In this case, by connecting an address electrode for addressing the adjacent portion where the phosphor layer emitting light of the same color is formed and controlling the same by the same drive circuit, the number of drive ICs can be reduced and the cost can be reduced. It is.

As a method for forming the phosphor layer, a screen printing method, a photosensitive paste method, and a dispenser method can be used. The screen printing method is a method of applying a paste containing a phosphor powder that emits light of each color of red, green, and blue to a required portion using a screen printing plate, and then firing the paste. The photosensitive paste method is to apply a phosphor powder containing each phosphor powder and a photosensitive organic component that emits light of each color, and apply the entire surface of the photosensitive phosphor paste to the partition wall forming substrate, and then bake after repeating pattern exposure and development for each color. Can be formed. The dispenser method is
This is a method in which a phosphor paste of each color is ejected from a nozzle having a hole at the tip, and the phosphor paste is applied and then fired.

By forming an address electrode, a dielectric, a partition, and a phosphor by the above method, a member of the plasma display panel, that is, a front plate or a back plate is obtained.

The above-mentioned member is used as, for example, a back plate, and after sealing with a separately prepared front plate, a discharge gas is sealed and wiring is mounted to obtain a high-intensity plasma display panel. it can.

Example 1 Hereinafter, the present invention will be described specifically with reference to examples.
However, the present invention is not limited to this.

Using a photosensitive silver paste, 1600 address electrodes were formed on a 450 mm × 350 mm glass substrate (2.8 mm thick, PD200 manufactured by Asahi Glass Co., Ltd.). The electrodes have a pitch of 220, 240, 260, 31
A stripe electrode having a line width of 60 μm was formed in such a manner that intervals of 0 and 290 μm were repeated.

Next, 50% by weight of glass powder, 15% of titanium oxide, 20% of ethyl cellulose, 15% of solvent
After applying a glass paste made of, a firing process was performed at 570 ° C. to form a dielectric layer. Black partition walls were formed on the substrate by a photosensitive paste method. Pitch 220, 22
Stripe barrier ribs having a line width of 30 μm were formed by repeating intervals of 0, 260, 260, and 360 μm. Positioning is performed so that the electrode is arranged at the center between the partition walls, and 1
601 partition walls were formed. 220 μm, 240 μm
Regarding the address electrodes formed between the partition walls formed at intervals of μm, the electrodes were formed in such a manner that the electrodes were connected at the lead portions. Next, a phosphor paste was applied between the partition walls by a dispenser method and dried to form a phosphor layer. A green phosphor layer is formed between partition walls formed at adjacent intervals of 220 μm, and an adjacent interval of 260 μm
A blue phosphor layer is formed between the partition walls formed in
A red phosphor layer was formed between the partitions formed at intervals. After that, a phosphor layer is formed on the substrate on which the electrodes, dielectrics, and partition walls are formed, and after being combined with the front plate, sealing and gas sealing are produced. When the plasma display panel was manufactured, the luminous efficiency was 1.
A plasma display panel with 1 lm / W, white peak luminance of 400 cd / m2, and contrast of 200: 1 was obtained.

Example 2 A 450 mm × 350 mm glass substrate (2.8 m thick)
m, PD200 manufactured by Asahi Glass Co., Ltd.), 1600 address electrodes were formed using a photosensitive silver paste.

The electrodes have pitches 190, 190, 29
0, 375, 275 μm intervals, line width 6
A 0 μm stripe electrode was formed.

Then, 50% by weight of glass powder, 15% of titanium oxide, 20% of ethyl cellulose, 15% of solvent
After applying a glass paste made of, a firing process was performed at 570 ° C. to form a dielectric layer. Black partition walls were formed on the substrate by a photosensitive paste method. Pitch 190, 19
1601 stripe barrier ribs having a line width of 30 μm were formed in such a manner that intervals of 0, 190, 390 and 360 μm were repeated. Positioning was performed so that an electrode was formed at the center between the partition walls to form a partition wall. Further, as for the address electrodes formed between the partition walls formed at intervals of 190 μm, the electrodes were formed in such a manner that the electrodes were connected at the lead portions. Next, a phosphor paste was applied between the partition walls by a dispenser method and dried to form a phosphor layer.
A blue phosphor layer is formed between adjacent partition walls formed at 190 μm intervals, a green phosphor layer is formed between adjacent partition walls formed at 390 μm intervals, and a red phosphor layer is formed between partition walls formed at 360 μm intervals. did. After that, a phosphor layer is formed on the substrate on which the electrodes, dielectrics, and partition walls are formed, and after being combined with the front plate, sealing and gas sealing are produced. When a plasma display panel was manufactured, the luminous efficiency was 1.2 lm / W, the white peak luminance was 420 cd / m2, and the contrast was 200:
Thus, one plasma display panel was obtained.

Comparative Example 450 mm × 350 mm glass substrate (2.8 m thick)
m, 960 address electrodes were formed using a photosensitive silver paste on PD200 manufactured by Asahi Glass Co., Ltd.

The electrodes have a pitch of 440 μm and a line width of 60 μm.
m stripe electrodes were formed.

Next, 50% by weight of glass powder, 15% of titanium oxide, 20% of ethyl cellulose, 15% of solvent
After applying a glass paste made of, a firing process was performed at 570 ° C. to form a dielectric layer. Black partition walls were formed on the substrate by a photosensitive paste method. At a pitch of 440 μm,
A stripe partition having a line width of 30 μm was formed. Next, using a dispenser, a paste containing a phosphor powder that emits red, blue, and green light was applied between the partition walls, and dried to form a phosphor layer.

A phosphor layer emitting light of RGB was formed between the formed partition walls. After that, a phosphor layer is formed on the substrate on which the electrodes, dielectrics, and partition walls are formed, and after being combined with the front plate, sealed and gas-filled, the drive circuit is connected, and 320 × 240 pixels are connected. A plasma display panel was manufactured. The display characteristics include a light emission efficiency of 0.8 lm / W, a white peak luminance of 280 cd / m2, and a contrast of 120: 1.
And did not extend to the examples of the present invention.

[0061]

The plasma display of the present invention has a stripe-shaped partition for partitioning an address electrode and a discharge space on a substrate, and a phosphor layer which emits red, green and blue light in a groove between adjacent partitions. For a color display plasma display member having stripes in which two or more adjacent grooves have phosphor layers that emit light of the same color, thereby providing a plasma display with a large phosphor application area and high luminance. it can.

[Brief description of the drawings]

FIG. 1 is a diagram showing a structural example of a back plate in a plasma display panel of the present invention.

FIG. 2 is a diagram showing a structural example of a back plate in a conventional plasma display panel.

FIG. 3 is a diagram showing a structural example of a conventional plasma display panel.

[Explanation of symbols]

 Reference Signs List 1, 1 'surface glass substrate 2, 2' dielectric layer 3, 3 'discharge electrode 4, 4' protective film 5, 5 'partition 6, 6' glass substrate 7, 7 'address electrode 8 red phosphor 9 green fluorescent Body 10 Blue phosphor

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5C040 FA01 FA04 GA03 GB03 GB14 GC01 GF16 GG03 GG05 LA02 LA05 LA12 LA13 LA14 MA03 MA14 5C094 AA08 AA10 BA31 BA32 CA19 CA20 CA24 EC04 FA01 JA07

Claims (6)

[Claims] 1. A color display having a stripe-shaped partition for partitioning an address electrode and a discharge space on a substrate, and a phosphor layer emitting red, green, and blue light in stripes in a groove between adjacent partitions. A member for a plasma display panel, comprising a phosphor layer that emits light of the same color in two or more adjacent grooves. 2. The member for a plasma display panel according to claim 1, wherein a phosphor layer that emits blue light is provided in two or more adjacent grooves. 3. The member for a plasma display panel according to claim 1, wherein two or more adjacent grooves having a phosphor layer that emits light of the same color are two or three. 4. A stripe-shaped partition for partitioning an address electrode and a discharge space on a substrate, and a phosphor layer which emits red, green, and blue light is provided in a groove between adjacent partitions in parallel with the address electrode. In a member for a color display plasma display panel, two or more adjacent address electrodes are connected on a substrate, and a phosphor layer that emits light of the same color is formed on the connected address electrodes. For plasma display panel. 5. A back substrate having stripe-shaped partitions for partitioning an address electrode and a discharge space, and having a phosphor layer emitting red, green, and blue light in stripes in grooves between adjacent partitions, and In a plasma display panel formed by sealing a scan electrode and a front substrate having a dielectric layer formed on the scan electrode, two or more adjacent phosphor layers formed on the rear substrate emit light of the same color. A plasma display panel. 6. A phosphor layer having at least blue color is 2
6. The plasma display panel according to claim 5, wherein the plurality of light emitting devices are formed adjacent to each other and emit light of the same color.