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Flexible OLEM and AMOLEM ultrathin glass cover plate thinning process

A technology of ultra-thin glass and glass plate, which can be used in glass manufacturing equipment, glass cutting devices, manufacturing tools, etc., and can solve problems such as low yield

Inactive Publication Date: 2019-10-08
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

[0002] Existing liquid crystal glass covers for mobile phones and tablet computers generally need to be thinned to 250 μm, while new folding screen mobile phones need to thin the liquid crystal glass to 50 μm ultra-thin liquid crystal glass. When the existing process is processed, the yield rate is very high. Low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1, a flexible OLEM, AMOLEM ultra-thin glass cover thinning process, including the following steps:

[0031] 1. Pre-cleaning: soak the product in a 10% potassium hydroxide solution at 45±5°C for 300s, soak twice, and the soaking interval is greater than 60s;

[0032] The product soaked in lye is soaked in deionized water at room temperature to remove the lye residue on the surface, soaking time: 450s, soaking twice, and the soaking interval is greater than 60s;

[0033] 2. One-time etching: chemically etch each glass plate for overall strengthening, and chemically strengthen the product thickness to 200±10μm; the content of HF in the etching solution is: 6%, the content of Hcl is: 5%, and the rest is deionized water ; The temperature of the etching solution is 30°C; the thickness of the material is measured before being put into the etching solution for the first round, a certain working time is given, the thickness is measured after etching, the thinning amou...

Embodiment 2

[0043] Embodiment 2, a flexible OLEM, AMOLEM ultra-thin glass cover thinning process, including the following steps:

[0044] 1. Pre-cleaning: soak the product in a 10% potassium hydroxide solution at 45±5°C for 350s, soak twice, and the soaking interval is greater than 60s;

[0045] The product soaked in lye is soaked in deionized water at room temperature to remove the lye residue on the surface, soaking time: 450s, soaking twice, and the soaking interval is greater than 60s;

[0046] 2. One-time etching: chemically etch each glass plate for overall strengthening, and chemically strengthen the product thickness to 200±10μm; the content of HF in the etching solution is: 10%, the content of Hcl is: 8%, and the rest is deionized water ; The temperature of the etching solution is 40°C; the thickness of the material is measured before being put into the etching solution for the first round, a certain working time is given, the thickness is measured after etching, the thinning amo...

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PUM

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Abstract

The invention discloses a flexible OLEM and AMOLEM ultrathin glass cover plate thinning process which is high in rate of finished products and stable in quality. The process includes steps: step one,pre-cleaning; step two, primary etching, to be specific, chemically etching each glass plate to realize once integral strengthening, and making the product thickness in a range of 200+ / -10micron through chemical strengthening etching; after etching is finished, subjecting products to thickness section classification, and classifying at section intervals of 5micron to facilitate subsequent secondary etching operation; step three, glass plate deep thinning pretreatment, to be specific, attaching two to-be-etched products in a same section to upper and lower surfaces of a supporting plate; sealing two short sides and long sides with half sides of acid-proof tapes until three layers of plate materials of fitting sides are completely protected by the tapes; step four, secondary etching, to be specific, performing thickness measurement at a fixing position of three layers of laminated plates until target thickness is achieved, wherein the target thickness is equal to a value obtained by subtracting thinning thickness from the sum of the thickness of the two to-be-etched glass plates and thickness of the supporting plate; step five, product separation; step six, wiping; step seven, finalinspection of appearance.

Description

technical field [0001] The invention relates to a liquid crystal glass thinning process, in particular to a flexible OLEM, AMOLEM ultra-thin glass cover thinning process. Background technique [0002] Existing liquid crystal glass covers for mobile phones and tablet computers generally need to be thinned to 250 μm, while new folding screen mobile phones need to thin the liquid crystal glass to 50 μm ultra-thin liquid crystal glass. When the existing process is processed, the yield rate is very high. Low. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a flexible OLEM and AMOLEM ultra-thin glass cover thinning process with high yield and stable quality. [0004] In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a thinning process of flexible OLEM and AMOLEM ultra-thin glass cover plate, comprising the following steps: [0005] 1. Pre-cleaning: s...

Claims

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Application Information

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IPC IPC(8): C03C15/00C03B33/02
CPCC03B33/02C03C15/00
Inventor 陈晨刘坤刘亮
Owner 惠晶显示科技(苏州)有限公司
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