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Rear-medium glass powder for plasma display screen

A plasma display and glass powder technology, which is applied in the field of post-dielectric glass powder for ion display, can solve the problems of poor barrier material matching, poor electrode compatibility, and low breakdown voltage, and achieve good reflectivity performance, Good matching, good matching effect

Inactive Publication Date: 2012-10-10
王卫霞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing post-dielectric glass powder has disadvantages such as relatively low breakdown voltage, poor compatibility with electrodes, poor compatibility with barrier materials, and low reflectivity after sintering. Therefore, the existing post-dielectric glass powder for plasma displays needs to be for further improvement

Method used

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  • Rear-medium glass powder for plasma display screen
  • Rear-medium glass powder for plasma display screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Prepare 100kg of plasma display screen with rear dielectric glass powder, including the following components by weight:

[0023] Bi 2 o 3 68kg B 2 o 3 9.5kg

[0024] al 2 o 3 10kg SiO2 2 9.5kg

[0025] BaO 3kg TiO 2 10kg.

[0026] The above raw materials Bi 2 o 3 , B 2 o 3 、Al 2 o 3 , SiO 2 , BaO and fully mixed evenly to obtain a mixture; put the mixture into a platinum crucible or a melting furnace, then put the crucible into a high-temperature resistance furnace, and melt it into a uniform glass liquid at 1200-1300°C; use heat-resistant The stainless steel water-cooled continuous rolling mill rolls the molten glass into 0.5mm thick crushed glass flakes; then puts the above-mentioned crushed thin glass flakes into a corundum tank ball mill for ball milling to obtain a coarsely crushed powder, and then the coarse powder Add it into the jet mill for fine grinding to obtain glass powder with a particle size below 10 μm, and then mix t...

Embodiment 2

[0028] Prepare 100kg of plasma display screen with rear dielectric glass powder, including the following components by weight:

[0029] Bi 2 o 3 60kg B 2 o 3 9kg

[0030] al 2 o 3 2kg SiO2 2 10kg

[0031] BaO 12kg ZnO 4kg

[0032] TiO 2 3kg.

[0033] The above raw materials Bi 2 o 3 , B 2 o 3 、Al 2 o 3 , SiO 2 , BaO and fully mixed evenly to obtain a mixture; put the mixture into a platinum crucible or a melting furnace, then put the crucible into a high-temperature resistance furnace, and melt it into a uniform glass liquid at 1200-1300°C; use heat-resistant The stainless steel water-cooled continuous rolling mill rolls the molten glass into 0.5mm thick crushed glass flakes; then puts the above-mentioned crushed thin glass flakes into a corundum tank ball mill for ball milling to obtain a coarsely crushed powder, and then the coarse powder Add it into the jet mill for fine grinding to obtain glass powder with a particle size below 10 μm,...

Embodiment 3

[0035] Prepare 100kg of plasma display screen with rear dielectric glass powder, including the following components by weight:

[0036] Bi 2 o 3 70kg B 2 o 3 9.5kg

[0037] al 2 o 3 7kg SiO 2 8kg

[0038] BaO 2.5kg TiO 2 3kg.

[0039] The above raw materials Bi 2 o 3 , B 2 o 3 、Al 2 o 3 , SiO 2 , BaO and fully mixed evenly to obtain a mixture; put the mixture into a platinum crucible or a melting furnace, then put the crucible into a high-temperature resistance furnace, and melt it into a uniform glass liquid at 1200-1300°C; use heat-resistant The stainless steel water-cooled continuous rolling mill rolls the molten glass into 0.5mm thick crushed glass flakes; then puts the above-mentioned crushed thin glass flakes into a corundum tank ball mill for ball milling to obtain a coarsely crushed powder, and then the coarse powder Add it into the jet mill for fine grinding to obtain glass powder with a particle size below 10 μm, and then mix the ...

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Abstract

The invention discloses rear-medium glass powder for a plasma display screen, which comprises the following components in percentage by weight: 55 to 70 percent of Bi2O3, 8.5 to 10 percent of B2O3, 2.5 to 6.5 percent of Al2O3, 8 to 10 percent of SiO2, 2 to 15 percent of BaO, and 3 to 10 percent of TiO2. The invention aims to overcome the defects in the prior art and provides the rear-medium glass powder for the plasma display screen, wherein the rear-medium glass powder has high breakdown resistant voltage, suitable thermal expansion coefficients, good compatibility with an electrode, good matching with a barrier material, and high reflectivity after sintering. The other aim of the invention is to provide a method for preparing the rear-medium glass powder.

Description

technical field [0001] The invention relates to a rear dielectric glass powder for a plasma display screen. Background technique [0002] In recent years, with the continuous improvement of consumers' functional requirements for display devices and the advancement of science, new flat panel display devices such as PDP and LCD have emerged. They are characterized by high definition, light weight, low power consumption, no radiation, and environmental protection performance. Advantages such as good, more and more enter the field of people's social life, especially in the flat panel display device of super large screen, PDP technology has its absolute advantage. [0003] The plasma display screen uses the principle of gas discharge, and consists of a small insulating discharge room composed of barriers and front and rear dielectrics. It emits light by exciting the phosphor powder coated on the discharge room, and the barriers and front and rear media used in the discharge room ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C12/00
Inventor 齐卫民蒋翰仲孟蕾
Owner 王卫霞