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Coating method of liquid crystal panel

A liquid crystal panel and coating technology, which is applied in the direction of sputtering coating, vacuum evaporation coating, ion implantation coating, etc., and can solve the problems that liquid crystal panels are prone to bubbles and other problems

Active Publication Date: 2019-02-01
WGTECH JIANGXI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a coating method that solves the problem of easy generation of air bubbles in liquid crystal panels.

Method used

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  • Coating method of liquid crystal panel
  • Coating method of liquid crystal panel
  • Coating method of liquid crystal panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] After washing the liquid crystal panel with pure water, put the liquid crystal panel into the plasma cleaning chamber 21, and use the atmospheric pressure Glow (glow) type plasma technology to perform plasma cleaning on the liquid crystal panel, specifically, use RF radio frequency as the excitation energy , the working frequency of the RF radio frequency is 13.56MHZ, using argon as the reaction gas, the flow rate is 10SCCM, and bombarding the liquid crystal panel for 30 seconds, the thickness of the liquid crystal panel can be reduced by 5nm-10nm. The pressure of the plasma cleaning chamber 20 is 10Pa to 50Pa, and the temperature of the plasma cleaning chamber is 80±5°C.

[0036] The washed liquid crystal panel is placed in the film feeding chamber 22 for 20 seconds, the vacuum pressure of the film feeding chamber 22 is 1Pa to 10Pa, and the temperature is 150±5°C. Then place the liquid crystal panel in the buffer chamber 23 for 20 seconds, the vacuum pressure of the bu...

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Abstract

The invention provides a film-coating method of a liquid crystal panel. The film-coating method of the liquid crystal panel comprises the steps that a second vacuum environment and a fourth vacuum environment are provided, the temperature of the second vacuum environment is 120 DEG C-160 DEG C, the temperature of the forth vacuum environment is 60 DEG C-90 DEG C, and the second vacuum environmentcan communicate with the fourth vacuum environment; and after the liquid crystal panel is placed in the second vacuum environment for a period of time, the liquid crystal panel is placed in the fourthvacuum environment for film coating. According to the film-coating method of the liquid crystal panel, by placing the liquid crystal panel in the second vacuum environment firstly and then placing the liquid crystal panel in the fourth vacuum environment for vacuum film coating, undesirable phenomena caused by producing of bubbles in a liquid crystal can be eliminated, and the yield of film coating is greatly improved.

Description

technical field [0001] The invention relates to the field of displays, in particular to a method for coating a liquid crystal panel. Background technique [0002] A liquid crystal panel generally consists of two glass substrates and a liquid crystal layer arranged in the two glass substrates. cavity. [0003] When laminating the liquid crystal panel with the frame glue, there may be problems such as loose frame glue or poor compactness of the frame glue. Subsequent vacuum coating on the LCD panel will expand the holes of the loose and poorly dense frame glue in a vacuum state. After the coating is completed, when the LCD panel enters the atmospheric state, due to the external pressure of the LCD panel If the pressure is greater than the internal pressure, moisture, air, etc. will enter the LCD panel through the enlarged holes to form air bubbles, resulting in defective LCD panels. Contents of the invention [0004] Based on this, it is necessary to provide a film coatin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/22C23C14/02
CPCC23C14/02C23C14/22
Inventor 周慧蓉况俊文余蓉杜烨易伟华
Owner WGTECH JIANGXI
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