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Ultra-thin glass strengthening method, ultra-thin glass, display screen and touch display device

A technology of ultra-thin glass and display screen, applied in the direction of glass cutting device, glass manufacturing equipment, data processing input/output process, etc., can solve the problem of display devices that are prone to scratches, difficult to apply electronic products, and have low surface hardness and other problems, to achieve the effect of convenient operation, improving strength and overcoming destructive effects

Pending Publication Date: 2022-02-08
赛德半导体有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these materials still have low surface hardness and are prone to scratches, so it is difficult to apply them to display devices of electronic products

Method used

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  • Ultra-thin glass strengthening method, ultra-thin glass, display screen and touch display device
  • Ultra-thin glass strengthening method, ultra-thin glass, display screen and touch display device
  • Ultra-thin glass strengthening method, ultra-thin glass, display screen and touch display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] S1. Use sodium hydroxide liquid medicine and clear water to remove the dirt on the glass surface by using ultra-thin glass with a thickness of 70 μm;

[0092] S2. Determine the target cutting area of ​​the glass, and protect the area on the glass except the target cutting area with a PVC film;

[0093] S3. Cutting the target cutting area by laser, and polishing the cut surface;

[0094] S4, the cut glass is repaired with a repair solution consisting of 9% by weight of hydrofluoric acid, 1.2% by weight of ammonium fluoride, 12% by weight of inorganic acid and the rest of water, so that the cut surface is passivated department;

[0095] S5, the PVC film artificial glass on the repaired glass surface is removed, then use pure water to clean the glass surface;

[0096] S6. After the surface-treated glass is preheated, it is immersed in molten potassium nitrate for strengthening treatment, and the temperature and strengthening time of the molten potassium nitrate are contr...

Embodiment 2

[0099] The difference between this embodiment and Embodiment 1 is that the thickness of the ultra-thin glass is 50 μm.

Embodiment 3

[0101] The difference between this embodiment and Embodiment 1 is that the thickness of the ultra-thin glass is 30 μm.

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Abstract

The invention discloses an ultra-thin glass strengthening method, ultra-thin glass, a display screen and a touch display device. The method comprises the following steps: pretreating glass, and removing dirt on the surface of the glass; determining a target cutting area of the glass, and protecting areas except the target cutting area on the glass by using a protective layer; cutting the target cutting area in a physical cutting mode; performing repair treatment on the cut glass by using a first repair liquid to form a passivation part on the tangent plane of the glass; carrying out surface treatment on the repaired glass; immersing the glass subjected to surface treatment into a strengthening liquid for strengthening treatment; and carrying out secondary surface treatment on the strengthened glass by using a second repairing liquid. The method is simple in process and convenient to operate, batch processing can be achieved, the strength of the ultra-thin glass is effectively improved through the method, the damage effect of stress concentration on the surface of the glass can be overcome, and the strengthened glass has good bending or folding and other flexible properties.

Description

Technical field [0001] The present invention generally relates to the technical field of touch display screens, and specifically relates to a method for strengthening ultra-thin glass, ultra-thin glass, a display screen and a touch display device. Background technique [0002] Glass has unique advantages such as good transparency, high mechanical strength, uniform texture, and smooth surface. It is widely used in display devices of smart terminals such as mobile phones, digital cameras, and computers. Although glass has high theoretical strength, based on the needs of display devices of existing electronic products, glass needs to be lightweight (thin) and have good flexibility properties such as bending or folding, and it needs to meet the requirements of long-term use. Because users accidentally scratch the surface of the display screen, the glass is prone to stress concentration and damage at the scratched surface. [0003] Related technologies are committed to developin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C15/00C03C21/00C03C23/00G06F3/041C03B33/08B28D1/02B24B27/06
CPCC03C15/00C03C21/002C03C23/0075G06F3/0412B28D1/02B24B27/06C03B33/082
Inventor 金俊昊李汉培欧阳春炜尹爀俊
Owner 赛德半导体有限公司