A kind of composition for glass and high transmittance glass and its preparation method and application

Abstract

The invention relates to the field of glass manufacturing, in particular to a composition for glass, high transmittance glass and its preparation method and application. The composition for glass contains SiO 2 、Al 2 o 3 、Na 2 O, MgO, CaO, SrO, ZnO, La 2 o 3 and Y 2 o 3 , based on the total weight of the glass composition, SiO 2 The content is 65.5‑81% by weight, Al 2 o 3 The content is 0.5‑12% by weight, Na 2 The content of O is 4-13% by weight, the content of MgO is 0.05-6% by weight, the content of CaO is 4-13% by weight, the content of SrO is 0.5-10% by weight, and the content of ZnO is 0.01-4% by weight, La 2 o 3 The content is 0.01‑2% by weight, Y 2 o 3 The content is 0.01‑2% by weight. The high transmittance glass and its preparation method and application are also disclosed. By optimizing the composition of the glass, the invention enables the light guide plate to have higher thermal stability, strain point, light transmittance, elastic modulus, and lower 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 the LCD are mainly a liquid crystal panel (Liquid Crystal Panel) and a backlight module (Backlight Unit, 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 mod...

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

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