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Preparation method of LCD (Liquid Crystal Display)

A glass and air knife technology, applied in nonlinear optics, instruments, optics, etc., can solve the problems of low product yield and incomplete preparation process.

Pending Publication Date: 2022-03-25
ANHUI GOLDEN VISION OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a preparation method of LCD, which effectively solves the problem of low product yield due to the imperfect preparation process of the existing LCD during the preparation process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] Embodiment, a kind of preparation method of LCD, comprises the following steps:

[0041] Step (1) glass input: select the ITO glass that meets the specifications and models of the product to be prepared;

[0042] Step (2) First cleaning: Clean the ITO glass with glass cleaning solution to remove impurities and oil stains on the surface of the ITO glass, then use an air knife to remove the water on the ITO surface and dry it;

[0043] The glass cleaning solution is prepared by adding sodium hydroxide with a concentration of 5%-7% into deionized water, and its alkali concentration is 0.85-1.0mol / L;

[0044]Step (3) Coating: Evenly coat a layer of photoresist on the conductive layer of the ITO glass after the first cleaning in step (2), then bake the ITO glass coated with photoresist, and bake Temperature 110℃, baking time 60s;

[0045] Step (4) exposure: cover the photolithography mask on the ITO glass coated with glue in step (3), and then place it under an ultraviolet...

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Abstract

The invention relates to a preparation method of an LCD (Liquid Crystal Display). The preparation method comprises the steps of glass input, first-time cleaning, gluing, exposure, developing, etching, demolding, pattern detection and repair, TIP (Transfer In Placement) working procedure, PI working procedure, orientation, screen printing, spraying, combination, hot pressing, cutting, liquid filling, sealing, last-time cleaning, electric visual inspection, surface mounting and packaging. The method can effectively solve the problem that the product yield is not high easily due to the fact that the preparation technology is not perfect enough in the preparation process of an existing LCD.

Description

technical field [0001] The invention relates to a method for preparing an LCD. Background technique [0002] LCD (abbreviation for Liquid Crystal Display) liquid crystal display. The structure of the LCD is to place a liquid crystal cell between two parallel glass substrates, set a TFT (thin film transistor) on the lower substrate glass, and set a color filter on the upper substrate glass, and control the liquid crystal molecules by changing the signal and voltage on the TFT. Rotate the direction, so as to achieve the purpose of controlling whether the polarized light of each pixel is emitted or not to achieve the display purpose. LCD has replaced CRT to become the mainstream, and the price has dropped a lot, and it has been fully popularized. [0003] In the manufacturing process of the existing LCD, because the manufacturing process is not perfect, the yield rate of the product is not high, and black and white spots and short circuit problems are prone to occur. For exa...

Claims

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Application Information

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IPC IPC(8): G02F1/13
CPCG02F1/1303
Inventor 吴建明何捷时巧玲
Owner ANHUI GOLDEN VISION OPTOELECTRONICS TECH
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