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Cleaning method for liquid crystal substrate glass surface black spot stains

A technology for liquid crystal substrates and glass surfaces, which is applied in the field of cleaning black spot stains on the glass surface of liquid crystal substrates, can solve the problem of inability to remove black spot stains on glass, and achieves the effect of improving display quality

Inactive Publication Date: 2019-01-25
ZHENGZHOU XUFEI OPTOELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing cleaning process can only clean some dirt particles adhered to the glass in the cold state, but cannot remove the black spots and stains generated in the hot state of the glass. Therefore, a new cleaning process is required to improve the cleaning ability of the cleaning process and eliminate the substrate The purpose of black spot stains on the glass surface

Method used

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  • Cleaning method for liquid crystal substrate glass surface black spot stains
  • Cleaning method for liquid crystal substrate glass surface black spot stains

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1,000 finished liquid crystal glass substrates produced in a certain factory are first cleaned in the cleaning solution under the action of the bristles of the disc brush. The cleaning conditions are: the cleaning agent is KOH, the concentration is 4% by weight, the temperature of the cleaning solution is 50°C, and the rotation speed of the disc brush is 50°C. 400 rpm, the length of the disk brush bristles is 10mm, the diameter of the disk brush bristles is 0.2mm, the position of the bottom of the disk brush is lower than the position of the upper surface of the glass of the liquid crystal substrate, and the position of the bottom of the disk brush is the same as the position of the upper surface of the glass of the liquid crystal substrate The height difference is 0.5 mm, the distance between the transmission wheels is 80 mm, and the cleaning speed is 5 m / min. See Table 1 for the specific test conditions and the passing rate of the particle inspection machine after coat...

Embodiment 2

[0035] 1,000 finished liquid crystal glass substrates produced in a certain factory are first cleaned in the cleaning solution under the action of the bristles of the disk brush. The cleaning conditions are: the cleaning agent is KOH, the concentration is 1% by weight, the temperature of the cleaning solution is 40°C, and the rotation speed of the disk brush is 200 rpm, the length of the disk brush bristles is 20mm, the diameter of the disk brush bristles is 0.1mm, the position of the bottom of the disk brush is lower than the position of the upper surface of the glass of the liquid crystal substrate, and the position of the bottom of the disk brush is the same as the position of the upper surface of the glass of the liquid crystal substrate The height difference is 0.2 mm, the distance between the transmission wheels is 150 mm, and the cleaning speed is 8 m / min. See Table 1 for the specific test conditions and the passing rate of the particle inspection machine after coating t...

Embodiment 3

[0037] It is basically the same as in Example 1, except that the strong base used is NaOH, and other conditions are the same as in Example 1. The specific test conditions and the qualified rate of using a particle inspection machine to detect after coating the cleaned glass are shown in Table 1.

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Abstract

The invention relates to a cleaning method for liquid crystal substrate glass surface black spot stains. The method includes the steps: immersing liquid crystal substrate glass with the surface with black spot stains in cleaning liquid; cleaning the black spot stains adhered on the liquid crystal substrate glass surface by bristles connected at the bottom of a disc brush under conveying of a conveying wheel. A cleaning agent is strong alkaline and dissolved in the cleaning liquid. According to the method, the strong alkaline serves as the cleaning agent, the disc brush serves as a cleaning tool, the black spot stains adhered on the glass surface can be effectively removed, and the display quality of a liquid crystal display screen is improved.

Description

technical field [0001] The present disclosure relates to the technical field of glass substrate production, in particular to a method for cleaning black spot stains on the glass surface of a liquid crystal substrate. Background technique [0002] In the production process of liquid crystal glass, the substrate glass goes through a series of processes such as dissolution molding and cutting processing, especially when the substrate glass is in a high temperature state, the equipment on the production site, product packaging materials and oily particles in the production environment adhere to the substrate On the glass surface, it is difficult to clean, forming black spots and stains, which will seriously affect the display quality of the liquid crystal display. Therefore, the black spots and stains on the surface of the glass substrate must be cleaned before the product is sent to the user. The existing cleaning process can only clean some dirt particles adhered to the glass ...

Claims

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Application Information

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IPC IPC(8): B08B3/08B08B1/02B08B11/04
CPCB08B3/08B08B11/04B08B1/20
Inventor 张建军李青穆美强苏记华王波魏军立王志周李兆廷
Owner ZHENGZHOU XUFEI OPTOELECTRONICS TECH