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High-strength glass for display device and preparation method of glass

A display device and high-strength technology, applied in the field of glass manufacturing, can solve problems such as the gap between expectations, and achieve the effects of improving strength, improving thermal stability, and excellent Vickers hardness

Active Publication Date: 2018-04-20
CAIHONG GRP SHAOYANG SPECIAL GLASS CO LTD
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Problems solved by technology

[0007] However, although the above-mentioned methods of the prior art have improved the strength of the glass to a certain extent, there is still a certain gap compared to the expectations of the industry for high-strength, high-wear-resistant glass for display devices, so the research has a higher strength. The preparation method of glass is still an important research direction in the field of glass manufacturing

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0034] A kind of preparation method of the high-strength glass that is used for display device of the present invention, comprises the following steps:

[0035] 1) Accurately weigh the following raw materials according to mass percentage:

[0036] 54-65% SiO 2 , 10-17% Al 2 o 3 , 0-0.7% Li 2 O, 12-16% Na2 O, 0.2-6% K 2 O, 0.01-3% of B 2 o 3 , 0.1-5% MgO, 0.1-5% CaO, 0.01-3% SrO, 0.01-1.2% ZrO 2 , 0.01-1% CeO 2 , 0.01-1% SnO 2 , and 0.01-0.8% TiO 2 ;

[0037] Moreover, the relationship between the components also satisfies:

[0038] (Na 2 O+K 2 O) / Al 2 o 3 It is 1.1-1.4; the preferred selection ranges are 1.1-1.3 and 1.2-1.3;

[0039] K 2 O / (Na 2 O+Li 2 O) is 0.01-0.5; Can preferably select range 0.01-0.2 and 0.02-0.1;

[0040] ZrO 2 / CeO 2 Be 0.5-2; Can preferably selec...

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Abstract

The invention discloses a high-strength glass for a display device and a preparation method of the glass. The strength of the glass can be improved from two aspects of component design and strengthening method, wherein the components exert a significant synergistic effect; through the introduction of new components CeO2 and TiO2, and the content relationships among various components are defined,in particular (Na2O+K2O) / Al2O3 and K2O / (Na2O+Li2O) are maintained in a certain range, the amount of ion exchange and the depth of the ion exchange are improved, and through the definition of the synergistic effect among the TiO2, ZrO2 and the CeO2, the thermal stability and the performance of ion exchange of the glass are improved. Finally, through the adoption of twice ion exchange, the mechanical property of the glass is greatly improved, so that the glass provided by the invention has relatively high surface compressive stress, Vickers hardness and excellent strain point and thermal stability, has the properties of compression resistance, scrape resistance and scratch resistance, and can be widely applied to a protective cover plate of the display device.

Description

technical field [0001] The invention relates to the technical field of glass manufacturing, in particular to a high-strength glass used for display devices and a preparation method thereof. Background technique [0002] In recent years, touch-screen electronic products such as smartphones, tablet computers, and electronic reading devices have developed rapidly. Due to the unavoidable touch, friction, and even scratches during use, the resulting accumulation of scratches causes the surface of the display to be rough. , the smoothness is reduced, the light scattering is increased, the transmittance is reduced, and the brightness, chromaticity, uniformity and resolution of touch screen electronic products are all reduced. Therefore, the strength and wear resistance of the screen cover plate are proposed. higher requirement. [0003] In the history of cover plate development, organic materials have been used as protective cover plates for display devices, but organic materials ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/095C03C21/00
CPCC03C3/095C03C21/002
Inventor 刘仲军彭引平杨国洪
Owner CAIHONG GRP SHAOYANG SPECIAL GLASS CO LTD
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