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Anti-blue-light cover plate glass as well as preparation method and application thereof

A cover glass and anti-blue light technology, which is applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve the problems of complex process and high cost, achieve broad application prospects, improve strength, high strength and hardness

Pending Publication Date: 2022-05-31
河北视窗玻璃有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method used is complex and costly

Method used

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  • Anti-blue-light cover plate glass as well as preparation method and application thereof
  • Anti-blue-light cover plate glass as well as preparation method and application thereof
  • Anti-blue-light cover plate glass as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] In this embodiment, the anti-blue light cover glass contains 70% SiO based on the molar percentage of oxide 2 , 2.7%Al 2 O 3 , 14.8%Na 2 O, 5.5% MgO, 1% K 2 O, 6%CaO;

[0040] The anti-blue light cover glass also contains Pr 3+ , based on the total molar percentage of oxides as described above as 100%, the Pr 3+ The molar percentage of 0.18%.

[0041] The preparation method is as follows: according to the glass components in terms of the molar percentage of oxides in the anti-blue light cover glass, each component is weighed, the glass raw materials are mixed, the temperature is kept at 1560 DEG C for 8 hours to melt, and the molten glass is poured into the glass. Put it into cold water at 20°C, then melt it at 1560°C for 8 hours, cast it on a copper plate, and anneal it at 580°C to obtain a 0.7mm-thick anti-blue light cover glass.

Embodiment 2-8

[0043] The difference between Examples 2-8 and Example 1 is that the anti-blue light cover glass is measured in mole percent of oxide, and its composition ratio is shown in Table 1. Other than that, the preparation method of the anti-blue light cover glass is the same as that in Example 1.

[0044] The anti-blue light cover glass of Examples 1-8 was chemically strengthened, the chemical strengthening temperature was 420°C, and the strengthening time was 4h. The obtained strengthening depth and compressive stress value are shown in Table 1.

[0045] Table 1

[0046]

[0047]

[0048] As can be seen from Table 1, the anti-blue light cover glass of the present invention has sufficient stress layer depth and high surface compressive stress after chemical strengthening.

[0049] Fluorescence spectrum test (fluorescence spectrophotometer, model F-4600, Hitachi, Japan) was performed on the anti-blue light cover glass of the embodiment, figure 1 The fluorescence spectra of Exa...

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Abstract

The invention provides anti-blue-light cover plate glass as well as a preparation method and application thereof. The anti-blue-light cover plate glass is prepared from the following oxides in percentage by mole: 50 to 75 percent of SiO2, 2 to 15 percent of Al2O3, 10 to 20 percent of Na2O, 5 to 15 percent of MgO, 0 to 5 percent of K2O, 0 to 6 percent of CaO and 0.01 to 1 percent of Pr < 3 + >. The anti-blue-light cover plate glass can effectively absorb blue light which is harmful to human eyes and has the wave band of 430-480 nm, has an anti-blue-light effect, can ensure that the glass has relatively high strength and hardness, and has a relatively deep surface stress layer and surface compressive stress after being chemically strengthened, so that the strength is improved, and the anti-blue-light cover plate glass has excellent mechanical properties. The preparation method is simple, does not need laminating or film coating, does not need secondary processing, is low in cost, is suitable for being used in the field of displays, and has a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of glass production, and relates to a flat glass material, in particular to a blue light-proof cover glass and a preparation method and application thereof. Background technique [0002] Blue light is an important part of visible light. Blue light has a short wavelength and high energy, which can directly penetrate the lens of the eye and cause macular degeneration. Blue light is one of the factors that cause eye fatigue. [0003] As living standards improve, smartphones, tablet computers, and LED display TVs are becoming more popular, and these display devices emit a lot of blue light. OLED (Organic Light-Emitting Diode), the full name of "Organic Light Emitting Diode", is a display screen technology. Each pixel of the screen panel of an OLED organic TV can emit light independently without a backlight. The OLED organic light-emitting body has 33.17 million solid particles, which can emit light automatical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/095G09F9/30C03B19/02C03C21/00
CPCC03C3/095G09F9/30C03B19/02C03C21/002
Inventor 何智钢韩正伟巩瑞龙孙雪峰李聚锋
Owner 河北视窗玻璃有限公司
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