Glass, light guide plate, backlight unit, liquid crystal panel, liquid crystal display terminal and preparation method of glass

Abstract

The invention discloses glass, a light guide plate, a backlight unit, a liquid crystal panel, a liquid crystal display terminal and a preparation method of the glass. The glass is prepared from, by mass, 66%-80% of SiO2, 0.1%-15% of Al2O3, 5%-20% of Na2O, 0-5% of K2O, 0-8% of MgO, 4%-15% of CaO, 0-10% of SrO, 0.5%-10% of BaO, 0.05%-8% of TiO2, 0-8% of ZrO2 and 0.01%-2% of clarifying agent. The glass can serve as the light guide plate.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a glass, a light guide plate, a backlight module, a liquid crystal panel, a liquid crystal display terminal and a method for preparing the glass. 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 posi...

AI Technical Summary

Problems solved by technology

In recent years, with the enlargement of the size of the liquid crystal panel, the correction method is difficult to achieve an effective effect; (2) the water absorption rate of PMMA is as high as 0.3%, and its shape and size will be deformed by the change of the environmental humidity, which is different from the display The size matching degree of the panel decreases, which affects the image quality; (3) poor heat resistance, the glass transition temperature (glass transition temperature, Tg) is around 95°C, and it is easy to deform and become soft when heated. Fixing the light guide plate to the backplane requires a variety of accessories to support it, which increases the thickness of the back module and increases the cost, and is inconsistent with the current development trend of large-scale and thin-profile display industry; (4) Rigidity Poor, when the area is large, it is easy to deform and cause unevenness of light emission; (5) When there is static electricity, it is easy to absorb dust, which affects the light uniformity of the backlight module

[0004] Aiming at the above-mentioned problems existing in the existing light guide plate, someone proposed to use ultra-clear glass as the light guide plate. The visible light transmittance of general ultra-clear glass is about 1-2% lower than that of PMMA, and there is also a low strain point. , The problem of large thermal expansion coefficient

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