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Electrode paste for plasma display panels, preparation method thereof and electrodes prepared from paste

A technology of electrode paste and conductive metal, which is applied in the field of electrodes, can solve the problem of high cost of conductive silver paste, and achieve good printing characteristics, conductivity, and high resolution.

Inactive Publication Date: 2013-10-09
SICHUAN COC DISPLAY DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims to provide an electrode paste for a plasma display screen, a preparation method and an electrode prepared therefrom, so as to solve the technical problem of high cost of conductive silver paste in the prior art

Method used

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  • Electrode paste for plasma display panels, preparation method thereof and electrodes prepared from paste

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preparation example Construction

[0025] According to another aspect of the present invention, a kind of preparation method of electrode slurry is provided, comprising the following steps: 1) dissolving alkali-soluble resin in a solvent, stirring evenly to obtain solution A; adding photoinitiator and Photocrosslinking agent to obtain solution B; 2) adding aluminum powder or a mixture of aluminum powder and metal oxide powder, and glass powder to solution B while stirring, and fully mixing to obtain mixture C; 3) mixing mixture C After three-axis rolling and filtering, the electrode slurry is obtained. The preparation process is simple and can be produced on a large scale, and the addition of the metal oxide can promote the formation of a solid solution of the aluminum powder in the sintering process, which is beneficial to the sintering process.

[0026] According to still another aspect of the present invention, an electrode is provided, and the electrode is prepared from any one of the above-mentioned electr...

Embodiment 1

[0029] 1) Dissolve 2wt% methyl methacrylate and methacrylic acid copolymer in 10wt% Texanol (2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, Eastman Produced by the company) in the solvent, stir evenly, then add 10wt% styrene and 2wt% benzophenone as photoinitiator to obtain solution B;

[0030] 2) Add 60wt% aluminum powder, 13wt% glass powder, and 3wt% zinc oxide to solution B while stirring, wherein the main component of bismuth glass powder is 68wt% Bi 2 o3 , 7wt%B 2 o 3 , 14.5wt% SiO 2 , 6wt% Al 2 o 3 , 4wt% ZnO, 0.5wt% Na 2 O, fully mixed to obtain mixture C;

[0031] 3) The mixture C is subjected to three-axis rolling and then filtered to obtain an electrode slurry.

Embodiment 2

[0033] 1) Dissolve 8wt% methyl methacrylate and methacrylic acid copolymer in 30wt% butyl carbitol, stir evenly, then add 14wt% vinyl acetate as photocrosslinking agent and 10wt% 2-hydroxy- 2-methyl-1-phenylacetone is used as photoinitiator to obtain solution B;

[0034] 2) Add 28wt% aluminum powder, 4wt% glass powder, and 6wt% indium oxide powder to solution B while stirring, wherein the main component of bismuth glass powder is 60wt% Bi 2 o 3 , 8wt%B 2 o 3 , 18.5wt% SiO 2 , 6wt% PbO, 7wt% ZnO, 0.5wt% Na 2 O, fully mixed to obtain mixture C;

[0035] 3) The mixture C is subjected to three-axis rolling and then filtered to obtain an electrode slurry.

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Abstract

The invention discloses electrode paste for plasma display panels, a preparation method thereof and electrodes prepared from the paste. The electrode paste comprises conductive metal powder, glass powder, an alkali soluble resin, photoinitiators, photocrosslinking agents and a solvent, wherein the conductive metal powder is aluminium powder or a mixture of the aluminium powder and metal oxide powder. The electrode paste for the plasma display panels, provided by the invention, has the following beneficial effects: relatively cheap aluminium is used as a conductor to replace the expensive metallic silver in the paste and the obtained paste has good printing characteristic and conductivity and can form high resolution patterns.

Description

technical field [0001] The invention belongs to the field of electronic slurry, and in particular relates to an electrode slurry for a plasma display screen, a preparation method and an electrode prepared therefrom. Background technique [0002] Plasma flat panel displays are gradually becoming the direction of large-size flat panel displays because of their high brightness, high contrast ratio, low cost, and easy large-scale features. Phosphor powder is filled in the display unit of the plasma display, ITO electrodes for discharge are arranged on the front substrate, and silver bus electrodes are arranged on the ITO electrodes to increase the conductivity. When the display is working, the addressing electrodes on the rear substrate determine the light-emitting unit, and the ITO electrodes discharge the ionized gas, thereby exciting the phosphors in the barriers to emit light. [0003] The internal structure of the plasma display device is made of electronic paste. Electro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/16H01B13/00H01J17/04
Inventor 王伟
Owner SICHUAN COC DISPLAY DEVICES
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