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Dielectric material of plasma display screen,manufacturing method of lower base plate of plasma display screen and plasma display screen

A technology of plasma display screen and dielectric material, applied in the field of dielectric materials, can solve the problem of low luminous efficiency of plasma display screen, and achieve the effects of increasing effective luminous area, increasing luminous area and high luminous efficiency

Inactive Publication Date: 2011-08-31
SICHUAN COC DISPLAY DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a dielectric material for a plasma display, a method for manufacturing a lower substrate of a plasma display containing the dielectric material, and a plasma display including the lower substrate, so as to improve the low luminous efficiency of the plasma display

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Fabricate the lower substrate in the following manner: use printing, drying, exposure, development and sintering to complete the fabrication of the addressing electrodes on the display glass substrate, so that the width of the addressing electrodes is appropriately increased below the corresponding Y electrodes; above the addressing electrodes Make dielectric layers of different thicknesses; use printing or coating methods to prepare barrier layers, and use DFR filming, exposure, development, sandblasting, film stripping and sintering steps to make barriers; the glass substrates that have completed barrier ribs are made at 550°C-600°C Sintering at high temperature; use printing or spraying process to make phosphor coating.

[0037] Wherein, on the substrate on which the address electrodes have been completed, a dielectric layer with a thickness of about 30 microns is produced on the address electrodes by using a NEWLONG printing machine.

[0038] The above dielectric la...

Embodiment 2

[0042] The same procedure as in Example 1 was used to manufacture the plasma display panel lower substrate. Just, among them, used low melting point PbO-B in the dielectric layer of this embodiment 2 o 3 -SiO 2 - Glass powder of RO-based glass, wherein R is an alkali metal, and alumina as an inorganic filler powder. Wherein, based on the total weight of the low melting point glass powder and the inorganic filler, the content of PbO is about 30% by weight, B 2 o 3 The content is about 15% by weight, SiO 2 The content is about 25% by weight, Li 2 O+Na 2 O+K 2 The content of O was about 10% by weight, and the content of the inorganic filler powder was about 20% by weight.

[0043] The particle size distribution of the above-mentioned glass powder is: the 50% average particle size (D50) is 0.3-5 μm, and the maximum particle size (Dmax) is about 20 μm. The particle size distribution of the inorganic filler powder alumina is: the 50% average particle size (D50) is 10-20 μm,...

Embodiment 3

[0046] The same procedure as in Example 1 was used to manufacture the plasma display panel lower substrate. However, among them, PbO-B is used in the dielectric layer of this embodiment 2 o 3 -SiO 2 - Low-melting-point glass powder of RO-based glass, R is an alkali metal, and alumina as an inorganic filler powder. Wherein, based on the total weight of the low melting point glass powder and the inorganic filler powder, the content of PbO is about 35% by weight, B 2 o 3 The content is about 10% by weight, SiO 2 The content is about 26% by weight, Li 2 O+Na 2 O+K 2 The content of O was about 14% by weight, and the content of the inorganic filler powder was about 15% by weight.

[0047] The particle size distribution of the above-mentioned glass powder is: the 50% average particle size (D50) is 0.3-5 μm, and the maximum particle size (Dmax) is about 20 μm. The particle size distribution of the inorganic filler powder alumina is: the 50% average particle size (D50) is 10-2...

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Abstract

The invention discloses a dielectric material of a plasma display screen. The dielectric material includes a low-melting glass powder of PbO-B2O3-SiO2-RO glass series, wherein R represents the alkali metal. The dielectric material also includes an inorganic filling powder which is one or more selected from a group consisting of zirconia, yttrium oxide, and alumina. Based on the total weight of the low-melting glass powder and the inorganic filling powder, the dielectric material comprises, by weight, 20-40% of PbO, 10-20% of B2O3, 15-30% of SiO2, 10-20% of RO, and 5-30% of the inorganic filling powder. The invention also discloses a manufacturing method of a lower base plate of the plasma display screen, and the dielectric material is used in the manufacturing method. The invention also discloses the plasma display screen including the lower base plate of the plasma display screen. The plasma display screen manufactured from the dielectric material of the invention can obtain good screen characteristics.

Description

technical field [0001] The invention relates to a dielectric material of a plasma display screen, a method for manufacturing a plasma display lower substrate comprising the dielectric material, and a plasma display comprising the lower substrate. Background technique [0002] PDP display screen (plasma display screen) is composed of functional substances or devices such as front and rear substrates, electrodes made on the substrates, transparent dielectric layer, dielectric layer, phosphor powder, etc. With the improvement of resolution and the continuous shrinking of display units, increasing the discharge gap to improve the luminous brightness is the main research direction in the future, but the result of the increase of the discharge gap results in a significant increase in the ignition voltage of the display device. The traditional production method of PDP is mainly that each display unit is composed of transparent electrodes, display electrodes, addressing electrodes a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C12/00
Inventor 宋利建吕旭东
Owner SICHUAN COC DISPLAY DEVICES
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