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Method used for improving stability of doped MgO dielectric protective layer and plasma display screen

A technology for plasma display and media protection, which is used in alternating current plasma display panels, ion implantation plating, coating, etc. Effect

Inactive Publication Date: 2014-07-23
SICHUAN COC DISPLAY DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to provide a method for improving the stability of the doped MgO dielectric protective layer and a plasma display screen, so as to solve the performance deterioration and product failure caused by the exposure of the MgO dielectric protective layer to the air due to doping in the prior art. Unstable technical issues

Method used

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  • Method used for improving stability of doped MgO dielectric protective layer and plasma display screen
  • Method used for improving stability of doped MgO dielectric protective layer and plasma display screen
  • Method used for improving stability of doped MgO dielectric protective layer and plasma display screen

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Embodiment 1

[0029] 1) A CaO-doped MgO target is used as an evaporation source, and a doped MgO dielectric protective layer is evaporated on the front substrate on which electrodes and dielectric layers have been fabricated, with a thickness of 700 nm.

[0030] 2) Put the vapor-deposited front substrate into a sintering furnace for heat treatment, the sintering atmosphere is air, the heating source is infrared heating, the heating temperature is 300° C., and the heating time is 10 minutes.

[0031] 3) After the heat treatment, align the front substrate and the rear substrate.

[0032] Analyze below in conjunction with the sample of embodiment 1: figure 1 Shown are the Fourier transform infrared spectrograms of the heat-treated sample and the non-heat-treated sample in air; figure 2 Shown is the comparison chart of the carbonate absorption peak area of ​​the sample after heat treatment in air and the sample without heat treatment after exposure in air for different time. Comparing the two,...

Embodiment 2

[0034] 1) The MgO target doped with SrO is used as the evaporation source, and the dielectric protection is evaporated on the front substrate on which the electrode and the dielectric layer have been fabricated, with a thickness of 900nm.

[0035] 2) After evaporation, put the front substrate into a sintering furnace for heat treatment, the sintering atmosphere is nitrogen, the heating source is infrared heating, the heating temperature is 600°C, and the heating time is 60 minutes.

[0036] 3) After the heat treatment, align the front substrate and the rear substrate.

[0037] Analyze below in conjunction with the sample of embodiment 2: image 3 Shown are the Fourier transform infrared spectra of the sample after heat treatment in nitrogen and the sample without heat treatment; Figure 4 Shown is a comparison chart of the carbonate absorption peak area of ​​the sample after heat treatment in nitrogen and the sample without heat treatment exposed in air for different times. ...

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Abstract

The invention discloses a method used for improving the stability of a doped MgO dielectric protective layer and a plasma display screen. The method comprises the step that heat treatment is carried out on the doped MgO dielectric protective layer formed by evaporation. According to the invention, heat treatment is carried out on the evaporated protective layer, which solves the problem that the doped MgO dielectric protective layer is exposed in air and is easily polluted, and improves the stability of the dielectric protective layer. The method and the plasma display screen, which are provided by the technical scheme, have the advantages of diversified realization manners, simple realization and low cost.

Description

technical field [0001] The invention belongs to the field of film processing, and in particular relates to a method for improving the stability of a doped MgO dielectric protective layer and a plasma display screen. Background technique [0002] In recent years, plasma display technology has become increasingly mature. Plasma Display Panel (PDP) occupies an important position in the field of large-size displays because of its high brightness, high contrast ratio, low cost and easy large-scale features. A PDP is a display device that uses plasma generated during gas discharge to excite phosphors to display characters and graphics. The plasma display includes a front panel and a rear panel, which are arranged to face each other. The front panel includes a front panel substrate on which striped electrodes are formed, a dielectric layer is formed on the striped electrodes, and a dielectric protection layer is further formed on the dielectric layer. [0003] At present, the di...

Claims

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Application Information

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IPC IPC(8): H01J9/00H01J11/10C23C14/58
Inventor 薛道齐孙猛
Owner SICHUAN COC DISPLAY DEVICES
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