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Glass cover plate for touch screens and preparation method thereof

A technology of glass cover plate and touch screen, applied in the field of glass cover plate for touch screen and its preparation, can solve problems such as reduction of mechanical strength, and achieve the effects of preventing surface micro-cracks, high strength and high chemical stability

Active Publication Date: 2015-06-03
CHINA BUILDING MATERIALS ACAD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ultra-thin is a double-edged sword. While enjoying the benefits of ultra-thin, people also suffer from the disadvantages of ultra-thin glass, that is, the reduction of mechanical strength caused by ultra-thin

Method used

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  • Glass cover plate for touch screens and preparation method thereof
  • Glass cover plate for touch screens and preparation method thereof
  • Glass cover plate for touch screens and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A glass cover for a 3.5-inch touch screen is prepared.

[0053] The first step: glass cold processing

[0054] Use an automatic glass cutting machine to cut 0.7mm thick soda-lime glass into 77.5mm long and 43.6mm wide glass pieces (note: 3.5-inch 16:9 screen), use an automatic edging machine for edging, make grooves, and then use IPA The solution and deionized water were ultrasonically cleaned for 5 minutes each.

[0055] Step Two: Chemical Tempering

[0056] Put the cleaned glass piece into the chemical toughening solution pool, the solution formula is industrial pure KNO 3 +0.5wt.% Analytical pure Al 2 o 3 , The tempering process is 420 ° C for 0.5 hours.

[0057] The third step: post-tempering treatment

[0058] Cool the tempered glass sheet to room temperature, soak it in deionized water for 12 hours, put it into IPA solution for ultrasonic cleaning for 5 minutes after soaking, and then put it into deionized water for ultrasonic cleaning for 5 minutes.

[005...

Embodiment 2

[0069] A coated glass cover plate for a 9.7-inch touch screen was prepared.

[0070] The first step: glass cold processing

[0071] Cut 0.7mm soda-lime glass into 197.104mm long and 147.828mm wide glass pieces (Note: 9.7-inch 4:3 screen) with an automatic glass cutting machine, use an automatic edger for edge grinding, make grooves, and then use IPA solution Ultrasonic cleaning with deionized water for 8 minutes each.

[0072] Step Two: Chemical Tempering

[0073] Put the cleaned glass piece into the chemical toughening solution pool, the solution formula is industrial pure KNO 3 +0.5wt.% Analytical pure Al 2 o 3 , the tempering process is 450 ℃ for 5 hours.

[0074] The third step: post-tempering treatment

[0075] Cool the tempered glass sheet to room temperature, soak it in deionized water for 15 hours, put it into IPA solution for ultrasonic cleaning for 10 minutes after soaking, and then put it into deionized water for ultrasonic cleaning for 10 minutes.

[0076] T...

Embodiment 3

[0082] Prepare a coated glass cover plate for a 32-inch touch screen.

[0083] The first step: glass cold processing

[0084] Cut 0.7mm soda-lime glass into 708.406mm long and 398.526mm wide glass pieces (Note: 32-inch 16:9 screen) with an automatic glass cutting machine, use an automatic edger for edge grinding, and then use IPA solution and deionized water Ultrasonic cleaning was performed for 10 minutes each.

[0085] Step Two: Chemical Tempering

[0086] Put the cleaned glass piece into the chemical toughening solution pool, the solution formula is industrial pure KNO 3 +0.5wt.% Analytical pure Al 2 o 3 , The tempering process is 470 ° C for 12 hours.

[0087] The third step: post-tempering treatment

[0088] Cool the tempered glass sheet to room temperature, soak it in deionized water for 20 hours, put it into IPA solution for ultrasonic cleaning for 10 minutes after soaking, and then put it into deionized water for ultrasonic cleaning for 10 minutes.

[0089] The ...

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Abstract

The invention discloses a glass cover plate for touch screens and a preparation method thereof. The glass cover plate for touch screens adopts ultra-thin glass, which first undergoes chemical tempering and is then plated with a layer of diamond-like carbon film. While guaranteeing high visuality, the glass cover plate for touch screens has improved strength and scratch resistance, so that consumers have no need for follow-up film pasting treatment.

Description

technical field [0001] The invention relates to a glass cover plate and a preparation method thereof, in particular to a glass cover plate for a touch screen and a preparation method thereof. Background technique [0002] With the rapid development of information technology and flat-panel display technology, touch screens have become a symbol of the progress of the times and have continuously entered all walks of life and thousands of households, such as business inquiry machines in telecommunications bureaus, tax bureaus, banks, electric power and other departments, industrial Control, military command, electronic games, ordering dishes and songs, multimedia teaching and other touch screen display interfaces, and electronic products such as smart phones and tablet computers that can be seen everywhere in the streets and alleys occupy most of the market share of touch screens. Consumers have a large number of touch screen products. Demand and technological progress in the in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/22
Inventor 孙瑶黄星烨张保军汪洪
Owner CHINA BUILDING MATERIALS ACAD