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High-efficiency cleaning method of TFT-LCD screen

A liquid crystal screen, high-efficiency technology, applied in the direction of using liquid cleaning methods, cleaning methods and utensils, chemical instruments and methods, etc., can solve problems such as polluting the environment, difficult cleaning of blind holes, and large investment in cleaning equipment at one time to meet environmental protection requirements Requirements, enhance the removal effect, and eliminate the effect of environmental protection hazards

Inactive Publication Date: 2017-09-22
HEFEI HUIKE PRECISION DIE CO LTD
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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

[0016] Embodiment An efficient cleaning method of TFT-LCD liquid crystal screen includes the following steps:

[0017] (1) Put the LCD screen cleaning solution in the first tank, heat it to 50-60℃, soak the LCD screen in the first tank, and clean it with ultrasonic or megasound for 3-5 minutes; put it in the second tank The electrochemical oxidizing solution is heated to 50-60°C, and the LCD screen is taken out of the first tank and placed in the second tank, with ultrasonic cleaning for 3-5 minutes;

[0018] (2) Put deionized water in the third tank, heat it to 50-60℃, take out the LCD screen from the second tank and put it in the third tank, and clean it with ultrasonic for 3-5min;

[0019] (3) Spray the cleaned LCD screen with deionized water at a temperature of 50-60℃ for 2-4min; dry the sprayed LCD screen.

[0020] In the step (1), the cleaning solution is formed by mixing an anionic surfactant, an organic base and water, and its weight ratio is: 2-5 parts of anionic surfactant, ...

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PUM

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Abstract

The invention discloses a high-efficiency cleaning method of a TFT-LCD screen. The high-efficiency cleaning method comprises the steps: (1) pouring a LCD screen cleaning solution into a first groove, heating the cleaning solution to 50-60 DEG C, immersing the LCD screen into the first groove, and cleaning the LCD screen for 3-5 min by matching ultrasonic wave or mega-sonic effect; pouring an electrochemical oxidation solution into a second groove, heating the electrochemical oxidation solution to 50-60 DEG C, taking out the LCD screen from the first groove, putting the LCD screen into the second groove, and cleaning the LCD screen for 3-5 min by matching the ultrasonic wave; (2) pouring deionized water into a third groove, heating the deionized water to 50-60 DEG C, taking out the LCD screen from the second groove, putting the LCD screen into the third groove, and cleaning the LCD screen for 3-5 min by matching the ultrasonic wave; (3) spraying the cleaned LCD screen with the deionized water with the temperature of 50-60 DEG C for 2-4 min; and drying the LCD screen after spraying.

Description

Technical field [0001] The invention relates to the technical field of liquid crystal display screens, in particular to an efficient cleaning method for TFT-LCD liquid crystal screens. Background technique [0002] Liquid crystal is a kind of material with special properties. It maintains the unique characteristics of crystals that can be arranged in a three-dimensional space within a certain range in a liquid state. The liquid crystal materials used on the liquid crystal screen are organic compounds with cholesteryl ester, cyanobiphenyl, phenylcyclohexane and other structures. After the liquid crystal material is encapsulated in the middle of the 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 LCD screen, and even corrode the electrode leads in severe cases, causing the whole machine to be scrapped. Therefore, in the production process of the LCD screen, the clea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B3/12B08B3/08B08B3/02B08B11/04
CPCB08B3/12B08B3/02B08B3/08B08B11/04
Inventor 白航空
Owner HEFEI HUIKE PRECISION DIE CO LTD
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