Preparation method of alkali aluminosilicate glass used for protective cover plates for display parts

Abstract

The invention discloses chemical toughened glass used for protective cover plates for display parts. The glass belongs to an alkali-aluminum-silicon system and comprises, by weight, 54 to 65% of SiO2, 10 to 17% of Al2O3, 8 to 16% of Na2O, 0 to 0.5% of Li2O, 0 to 6% of K2O, 0.01 to 3% of B2O3, 0.1 to 5% of MgO, 0.1 to 5% of CaO, 0.01 to 2% of SrO, 0.01 to 1% of ZrO2 and 0.01 to 1% of SnO2. The alkali aluminosilicate glass provided in the invention does not contain arsenic and antimony which pose pollution to environment; difficulty of manufacturing the glass is reduced through reasonable design of components. After specific chemical toughening treatment is carried out on the glass, surface hardness, scratch resistance and wear resistance of the glass are greatly improved, and the glass is a glass material applicable to a variety of protective cover plates for display parts.

Description

technical field [0001] The invention belongs to the field of glass, and relates to an alkali-aluminosilicate glass, in particular to a method for preparing an alkali-aluminosilicate glass suitable for chemical toughening and used for a protective cover plate of a display device. technical background [0002] With the development of display technology, there are more and more handwriting input and touch-sensing devices, whether in public places or as individuals or at home, which puts forward new requirements for the adaptability of the use environment. Touch-screen electronic products (mobile phones) , Pocket PCs, various terminal displays and public information query equipment, etc.) have achieved unprecedented development. During the movement or use of portable electronic devices, it is inevitable to have contact and friction with other items: keys, lighters, coins, various magnetic cards, etc. More harsh situations also occur from time to time, due to frequent touches dur...

AI Technical Summary

Problems solved by technology

During the movement or use of portable electronic devices, it is inevitable to have contact and friction with other items: keys, lighters, coins, various magnetic cards, etc. More harsh situations also occur from time to time, due to frequent touches during use, plus Inadvertent scratches and touches, the resulting accumulation of scratches will directly cause the surface of the display to be rough, the smoothness will be reduced, the scattered (reflected) light will be increased, and the transmittance, brightness (chromaticity) uniformity and Resolution, and the impact on the screen is uneven and random, which requires the surface of this type of product to have high strength and anti-scratch performance

[0003] Organic materials have been used as the protective cover for the above-mentioned display devices, but due to the defects of the material itself (easy to age, poor transmittance), and the use of additional cover solutions will bring additional adverse effects on the display, and not widely used

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