Glass panel thinning method, thinned glass panel and display device

A glass panel and thin glass technology, which is applied to identification devices, optics, instruments, etc., can solve the problems of low apparent yield rate, high concave defect rate and scratch defect rate, and surface bump defect rate of glass panels.

Inactive Publication Date: 2018-05-15
WGTECH JIANGXI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface defect rate of bumps, pits and scratches of the glass panel obtained by the existing chemical thinning method is high, and the overall apparent yield of the glass panel is low, which requires surface polishing to achieve actual needs

Method used

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  • Glass panel thinning method, thinned glass panel and display device
  • Glass panel thinning method, thinned glass panel and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] (1) Take 20 display panels whose raw material is Corning glass, the thickness of the display panel is 1.0 mm, and the number of small particles in a single sheet is 50, and the surroundings of the display panel are cured and sealed with UV glue.

[0082](2) Put the display panel into a cleaning composition at 45°C for 30 minutes, and pass through compressed air for bubbling, and then put it into pure water at 25°C for cleaning for 3 minutes, wherein the cleaning composition includes hydrogen Sodium Oxide, Disodium EDTA, Sodium Bisulfite, Sodium Lauryl Sulfate and Isopropanol, and Sodium Hydroxide, Disodium EDTA, Sodium Bisulfite, Lauryl The mass ratio of sodium sulfonate and isopropanol is 10:0.15:0.1:0.2:0.4, and the flow rate of compressed air per liter of cleaning agent is 4.8 liters / minute.

[0083] (3) Put the display panel obtained in step (2) into a microetching solution at 35°C for microetching for 30 minutes, and pass through compressed air for bubbling, and th...

Embodiment 2

[0087] (1) Take 20 display panels whose raw material is Corning glass, the thickness of the display panel is 1.0 mm, and the number of small particles in a single sheet is 50, and the surroundings of the display panel are cured and sealed with UV glue.

[0088] (2) Put the display panel into a cleaning composition at 55°C for 10 minutes, and pass through compressed air for bubbling, and then put it into pure water at 25°C for cleaning for 3 minutes, wherein the cleaning composition includes hydrogen Potassium oxide, sodium citrate, isothiazolinone, sodium fatty alcohol ether sulfate and propylene glycol, and the mass ratio of potassium hydroxide, sodium citrate, isothiazolone, sodium fatty alcohol ether sulfate and propylene glycol is 20:0.2:0.15 : 0.3: 0.5, the flow rate of compressed air per liter of cleaning agent is 1.2 liters per minute.

[0089] (3) Put the display panel obtained in step (2) into a micro-etching solution at 25°C for micro-etching for 60 minutes, and pass...

Embodiment 3

[0093] (1) Take 20 display panels whose raw material is Corning glass, the thickness of the display panel is 1.0 mm, and the number of small particles in a single sheet is 50, and the surroundings of the display panel are cured and sealed with UV glue.

[0094] (2) Put the display panel into a cleaning composition at 45°C for 30 minutes, and pass through compressed air for bubbling, and then put it into pure water at 25°C for 3 minutes, wherein sodium hydroxide, ethyl Disodium diamine tetraacetate, sodium citrate, sodium gluconate, sodium bisulfite, sodium lauryl sulfonate and isopropanol, and sodium hydroxide, disodium edetate, sodium citrate, glucose The mass ratio of sodium bisulfite, sodium dodecylsulfate, and isopropanol is 10:0.1:0.05:0.1:0.2:0.4:0.3, and the flow rate of compressed air per liter of cleaning agent is 3.0 L / min.

[0095] (3) Put the display panel obtained in step (2) into a micro-etching solution at 25°C for micro-etching for 60 minutes, and pass through...

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Abstract

The invention relates to a glass panel thinning method, a thinned glass panel and a display device. The glass panel thinning method comprises the following steps of: cleaning the glass panel; microetching the cleaned glass panel cleaned by a microetching liquid; and etching the microetched glass panel with an etching solution to obtain the thinned glass panel. The thinned glass panel obtained by the thinning method has a lower surface salient point defect rate, a lower concave spot defect rate, and a lower scratch defect rate, and overall apparent yield rate is higher, and no polishing treatment is required.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for thinning a glass panel, a thinned glass panel and a display device. Background technique [0002] With the continuous development of the display field, glass panels are gradually developing in the direction of ultra-thin. At present, glass panels are mainly thinned by physical thinning methods or chemical thinning methods. Among them, chemical thinning has the characteristics of high efficiency, large output and good uniformity, and is widely used in the thinning treatment of glass panels. The surface defect rate of bumps, pits and scratches of the glass panel obtained by the existing chemical thinning method is high, and the overall apparent yield of the glass panel is low, which requires surface polishing to achieve actual needs. Contents of the invention [0003] Based on this, it is necessary to provide a method for thinning the glass panel. The thinned gla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C15/00G02F1/13G09F9/00
CPCC03C15/00G02F1/1303G09F9/00
Inventor 易伟华孙骏超吴兴泽
Owner WGTECH JIANGXI
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