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Dielectric material for plasma display plate

A dielectric material and plasma technology, applied in the direction of dielectric/insulating layer, gas discharge electrode, gas discharge tube/container, etc., can solve the problems of becoming less dense, dielectric layer erosion, prone to yellowing, etc., and achieve material cost The effect of lowering, high withstand voltage, and excellent chemical durability

Inactive Publication Date: 2005-02-02
NIPPON ELECTRIC GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the dielectric layer is made of glass with weak chemical durability, there will be a problem that the dielectric layer will be corroded by alkaline solution and become less dense.
[0008] In addition, the above-mentioned materials have no problems in the case of thin-film electrodes, but when using silver electrodes, there is a problem that yellowing tends to occur

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] Hereinafter, the present invention will be described based on examples.

[0061] Table 1 shows examples (sample Nos. 1 to 15) and comparative examples (sample Nos. 16 and 17) of the present invention.

[0062] Example

comparative example

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Glass composition (mass%)

PbO

B 2 o 3

SiO 2

ZnO

BaO

CaO

MgO

SrO

Bi 2 o 3

Al 2 o 3

TiO 2

ZrO 2

27

20

6

23

18

2.5

3.5

29

20.5

6.5

22.5

17.5

2.5

1.5

30.5

19.5

5.5

19.5

17.5

4.5

3

35

20

8

25

10

...

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PUM

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Abstract

PURPOSE: A dielectric material used for a plasma display panel is provided to easily remove bubbles from a dielectric layer during a burning process, obtain excellent chemical resistance of the dielectric layer and prevent a silver electrode from being browned. CONSTITUTION: A dielectric material used for a plasma display panel has glass powder that contains PbO of 25 to 55%, B2O3 of 10 to 40%, SiO2 of 1 to 15%, ZnO of 3 to 35%, BaO+CaO+MgO+SrO+Bi2O3 of 2 to 30%, Al2O3 of 0 to 10%, and TiO2+ZrO2 of 0.01 to 10%. The content of TiO2 is 0.01 to 10%. The content of BaO is 1 to 30%. The dielectric material further contains ceramic powder. In this case, the content of the glass powder is 90 to 100weight% and the content of the ceramic powder is 0 to 10weight%.

Description

technical field [0001] The present invention relates to dielectric materials for plasma display panels. In particular, it relates to dielectric materials that can be used in both the front dielectric and the address electrode protection dielectric. Background technique [0002] Electrodes for plasma discharge are formed on the front glass plate of the plasma display panel, and a transparent front dielectric layer for sustain discharge is formed thereon. Furthermore, in order to protect the address electrodes, a dielectric layer for protecting address electrodes with withstanding voltage is formed on the rear glass plate, and barrier walls (partition walls) are formed thereon. [0003] The dielectric layer is formed on the front glass plate or the back glass plate at a temperature of 550 to 600°C. Therefore, for the dielectric material, high-lead glass powder suitable for the thermal expansion coefficient of the glass plate and capable of being fired at 550 to 600° C. is us...

Claims

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Application Information

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IPC IPC(8): C04B35/00C03C3/074C03C8/12C03C8/14C03C8/20C03C12/00C03C14/00C03C17/00C04B35/495H01B3/02H01B3/08H01J11/22H01J11/34H01J11/38
CPCC03C8/14C03C2217/40C03C8/12C03C17/007C03C8/20C04B35/495H01B3/02H01J11/38
Inventor 波多野和夫结城健柴田昭治
Owner NIPPON ELECTRIC GLASS CO LTD
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