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Method for thinning liquid crystal display panel with thickness less than 200 micrometers

A liquid crystal display panel and thinning technology, which is applied in the field of etching and thinning of ultra-thin liquid crystal display panel glass, can solve the problems of high breakage rate and inability to mass-produce, and achieve the effects of fast separation speed and reduction of breakage rate

Inactive Publication Date: 2016-09-28
惠晶显示科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ultra-thin products have the problem that the crack rate is too high during the chemical thinning process and cannot be mass-produced.

Method used

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  • Method for thinning liquid crystal display panel with thickness less than 200 micrometers

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The implementation of this case is used to illustrate that the thinning method of the present invention thins the white glass whose raw material is Asahi Glass AN100 single layer 0.7mm to 0.15mm.

[0023] Specific steps:

[0024] Take 2 pieces of Asahi Glass AN100 single-layer 0.7mm white glass with a size of 370×470mm, and then prepare a 0.7mm carrier glass with the same size as the glass to be thinned; use double-sided tape to neatly align and fit the carrier and the thinner glass that needs to be thinned. Chemicalized glass, carrier glass as interlayer; such as figure 1 As shown, use UV glue to seal the edges of the laminated three-layer glass; wash the glass surface with a cleaning solvent and use mixed acid to acid-thin it to 0.15mm in the top spray equipment; thin the glass surface to the target thickness. Cleaning; the thinned glass is subjected to strong UV curing again and then soaked in a strong alkaline solvent for 25 minutes, and the temperature of the alka...

Embodiment 2

[0026] The implementation of this case is used to illustrate that the thinning method of the present invention thins the white glass whose raw material is Asahi Glass AN100 single layer 0.7mm to 0.10mm.

[0027] Specific steps:

[0028] Take 2 pieces of Asahi Glass AN100 single-layer 0.7mm white glass with a size of 370×470mm, and then prepare a 1mm carrier glass with the same size as the glass that needs to be thinned; use double-sided adhesive to neatly align and fit the carrier and need to be thinned glass, carrier glass as interlayer; such as figure 1 As shown, use UV glue to seal the edges of the laminated three-layer glass; wash the glass surface with a cleaning solvent and use mixed acid to acid-thin it to 0.10mm in the top spray equipment; thin the glass surface to the target thickness. Cleaning; the thinned glass is subjected to strong UV curing again and then soaked in a strong alkaline solvent for 15 minutes, and the temperature of the alkaline solvent is kept at 7...

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Abstract

The invention discloses a method for thinning a liquid crystal display panel with thickness less than 200 micrometers. The method comprises the following steps: a. a piece of substrate glass is prepared; b. the substrate glass is used as an interlayer, two pieces of liquid crystal display panels to be processed and the substrate glass are aligned, UV glue is used for sealing edges of the liquid crystal display panels to be processed and the substrate glass for hermetical fixing; c. the fixed liquid crystal display panel glass and the substrate glass are cleaned; d. a mixed acid etching solution is used for spray, and the liquid crystal display panel glass is thinned to the required thickness; e. the thinned liquid crystal display panel glass and the substrate glass are cleaned; f. periphery of the cleaned liquid crystal display panel glass and the substrate glass is solidified by the UV glue again; g. the liquid crystal display panel glass and the substrate glass are immersed together in alkali liquor at 50-80 DEG C for 5-30 minutes in order to carry out separation; h. the thinned liquid crystal display panel glass is cleaned. The liquid crystal display panel processed by the method has high yield, and the finished product has stable properties.

Description

technical field [0001] The invention relates to an etching and thinning method for single glass in the liquid crystal display industry, in particular to an etching and thinning method for ultra-thin liquid crystal display panel glass with a thickness less than 200 microns. Background technique [0002] The thinning methods of ultra-thin liquid crystal display panel glass mainly include physical thinning and chemical etching thinning. Among them, the flatness of physical thinning is difficult to meet the requirements. Chemical thinning has the characteristics of high efficiency, simple formula, large output, and good uniformity. With the development of the display industry, the cover and touch glass markets are gradually moving towards ultra-thin. However, the ultra-thin products have the problem that the rupture rate is too high during the chemical thinning process, which makes mass production impossible. Contents of the invention [0003] The technical problem to be so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C15/00
CPCC03C15/00
Inventor 李高贵阮军刘坤
Owner 惠晶显示科技(苏州)有限公司
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