Liquid crystal screen cleaning method

A liquid crystal screen and cleaning agent technology, applied in the direction of liquid cleaning methods, cleaning methods and utensils, chemical instruments and methods, etc., can solve the problems of large investment in cleaning equipment, increasing sewage treatment facilities, and non-recyclable cleaning liquid. Achieve the effect of eliminating hidden dangers of environmental protection, good cleaning effect and convenient operation

Inactive Publication Date: 2010-11-10
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its disadvantage is that it is difficult to clean blind holes, the cleaning liquid cannot be recycled, and the investment in cleaning equipment is relatively large.
What's more serious is that a large amount of waste water containing chemical active agents and dirt is discharged directly without treatment, seriously polluting the environment, and sewage treatment facilities must be increased

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Put the cleaning agent in the first tank, heat it to 50-60°C, soak the flower basket with the LCD screen in the first tank, and clean it with ultrasonic wave for 3-5 minutes. The cleaning agent consists of 5% hydroxyethylethylenediamine, 0.5% JFC, 0.1% FA / O type II surfactant, 1% FA / O chelating agent, and deionized water in the balance.

[0025] (2) Put electrochemical oxidizing solution in the second tank, electrochemical oxidizing solution is to utilize diamond film anode to electrolyze water, the strong oxidation anode cell electrolyte that electrochemical oxidation generates, and oxidation component is saturated hydrogen peroxide, dissolved ozone; Heating When the temperature reaches 50-60°C, take out the flower basket with the LCD screen from the first tank, put it into the second tank, and clean it for 3-5 minutes with the action of ultrasonic waves.

[0026] (3) Put deionized water in the third tank, heat to 50-60°C, take out the flower basket with the LCD sc...

Embodiment 2

[0033] (1) Put the cleaning agent in the first tank, heat it to 50-60°C, soak the flower basket with the LCD screen in the first tank, and clean it with ultrasonic wave for 3-5 minutes. The composition of the cleaning agent in terms of mass percentage is: 12% of triethanolamine, 10% of JFC, 0.1% of FA / O type I surfactant, 5% of FA / O chelating agent, and the balance of deionized water.

[0034] (2) Put the electrochemical oxidation solution in the second tank. The electrochemical oxidation solution is a strong oxidation anode cell electrolyte generated by electrolysis of water by diamond film anode and electrochemical oxidation. The oxidation components are saturated hydrogen peroxide and dissolved ozone, and heated When the temperature reaches 50-60°C, take out the flower basket with the LCD screen from the first tank, put it into the second tank, and clean it for 3-5 minutes with the action of ultrasonic waves.

[0035] (3) Put deionized water in the third tank, heat to 50-60...

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PUM

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Abstract

The invention discloses a liquid crystal screen cleaning method, which aims at providing a cleaning method capable of eliminating organic matters and cleaning agent residual, eliminating environment protection hidden trouble of water base cleaning, and meeting the environment protection requirement. The method comprises the following steps: placing crystal liquid screen cleaning agents in a first tank; heating the cleaning agents to 50 to 60 DEG C; soaking a basket containing a liquid crystal screen into the first tank to be matched with the ultrasonic wave or trillion sound effect for being cleaned for 3 to 5 minutes; placing electrochemical oxidation liquid in a second tank to be heated to 50 to 60 DEG C; taking out the basket containing the liquid crystal screen to be placed into the second tank to be matched with the ultrasonic wave or trillion sound effect for being cleaned; then, carrying out de-ionized water matched ultrasonic wave cleaning for three times; and next, carrying out spraying and baking. Because the electrochemical oxidation liquid is adopted to be matched with ultrasonic waves for cleaning after the cleaning by the cleaning agents, the generation of a large amount of waste water containing the cleaning agents can be avoided, the environment protection hidden trouble of the water base cleaning can be eliminated, and the environment protection requirement can be met.

Description

technical field [0001] The invention relates to a cleaning method of a liquid crystal screen. Background technique [0002] Liquid crystal is a kind of substance with special properties. It maintains the unique characteristics of crystals that can be arranged in three-dimensional space within a certain range in a liquid state. The liquid crystal material used on the liquid crystal screen is an organic compound with structures such as cholesteryl ester, cyanobiphenyl, and phenylcyclohexane. After the liquid crystal material is encapsulated between two pieces of conductive glass, there will always be excess liquid crystal material remaining around it. If it is not cleaned, it will affect the performance of the liquid crystal screen. In severe cases, the electrode leads will even be corroded, causing the whole machine to be scrapped. Therefore, in the production process of LCD screens, the cleaning effect directly affects the reliability and yield of LCD screens. [0003] At ...

Claims

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Application Information

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IPC IPC(8): B08B3/08B08B3/12
Inventor 刘玉岭高宝红檀柏梅黄妍妍
Owner HEBEI UNIV OF TECH
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