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Glass composition, high-transmittance glass, preparation method of high-transmittance glass, and application of glass composition and high-transmittance glass

A technology with high transmittance and composition, which is applied in the field of glass manufacturing, can solve the problems of low glass transition temperature, high thermal expansion coefficient, and difficulty in ultra-thinning, and achieve low thermal expansion coefficient, good heat resistance, and increased strain point. Effect

Active Publication Date: 2016-07-06
DONGXU OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its purpose is to solve the problems of poor heat resistance, low glass transition temperature, high thermal expansion coefficient, high water absorption, high cost, difficult to enlarge, and difficult to ultra-thin in the existing light guide plate, so as to prevent the light guide plate from being damaged due to dimensional deformation. Problems that affect the uniformity of light output from the backlight module, and then can achieve high-performance backlight effects at low cost, and realize low-cost, large-size, and ultra-thin backlight modules

Method used

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  • Glass composition, high-transmittance glass, preparation method of high-transmittance glass, and application of glass composition and high-transmittance glass
  • Glass composition, high-transmittance glass, preparation method of high-transmittance glass, and application of glass composition and high-transmittance glass
  • Glass composition, high-transmittance glass, preparation method of high-transmittance glass, and application of glass composition and high-transmittance glass

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Embodiment 1-18 and comparative example 1-4

[0059] Weigh the raw materials of each glass composition according to the ratio shown in Table 1-3, mix them uniformly, pour them into a platinum crucible, melt them in a silicon-molybdenum rod high-temperature melting furnace, keep them warm at 1400°C for 10h, and use a platinum rod Stir to remove air bubbles and homogenize the molten glass, then cool the melted glass to the temperature range required for molding, and after annealing, make a glass substrate with the thickness required for the light guide plate, and then simply process the formed glass substrate Finally, the physical properties of the glass substrate are tested, and the test results are shown in Table 1-3 below.

[0060] Table 1

[0061]

[0062]

[0063] Table 2

[0064]

[0065] table 3

[0066]

[0067] As can be seen from the data in Table 1-3, the density of the high transmittance glass prepared by the present invention is less than 2.55g / cm 3 , The coefficient of thermal expansion at 50-35...

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Abstract

The invention relates to the field of glassmaking, in particular to a glass composition, high-transmittance glass, a preparation method of the high-transmittance glass, and application of the glass composition and the high-transmittance glass. The glass composition comprises SiO2, Al2O3, Na2O, MgO, CaO, SrO, ZnO, La2O3 and Y2O3. Taking the total weight of the glass composition as the benchmark, the content of SiO2 is 65.5-81%, the content of Al2O3 is 0.5-12%, the content of Na2O is 4-13%, the content of MgO is 0.05-6%, the content of CaO is 4-13%, the content of SrO is 0.5-10%, the content of ZnO is 0.01-4%, the content of La2O3 is 0.01-2%, and the content of Y2O3 is 0.01-2%. The high-transmittance glass, the preparation method of the high-transmittance glass, and the application of the high-transmittance glass are further disclosed. Through the optimization of composition of the glass, a light guide plate is relatively high in heat stability, strain point, light transmissivity and elasticity modulus and relatively low in thermal expansion coefficient, density, melting temperature and liquidus temperature.

Description

technical field [0001] The invention relates to the field of glass manufacturing, in particular to a composition for glass, high transmittance glass and a preparation method and application thereof. Background technique [0002] In recent years, liquid crystal display technology (Liquid Crystal Display, LCD) has become a mainstream technology in the flat panel display industry. The components of LCD are mainly liquid crystal panel (LiquidCrystalPanel) and backlight module (BacklightUnit, BLU). The liquid crystal itself does not emit light, and the backlight module needs to provide enough uniform light source to the liquid crystal panel so that the liquid crystal display can display normally. The light source of the liquid crystal display is generally placed on the back of the display panel. Backlight modules are divided into two types: edge-lit backlight modules and direct-lit backlight modules according to the position of the light source. Edge-lit backlight modules have b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/095
CPCC03C3/095
Inventor 韩文梅张广涛李俊锋闫冬成王丽红胡恒广
Owner DONGXU OPTOELECTRONICS TECH CO LTD
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