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A formula of environment-friendly tft-lcd substrate glass

An environmentally friendly, substrate technology, applied in the field of alkaline earth boron aluminum glass component design, can solve the problems of low effectiveness, toxicity, low temperature of clarified gas, etc.

Active Publication Date: 2015-12-16
SHIJIAZHUANG XUXIN OPTOELECTRONIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, antimony itself poses environmental and health concerns
Although Sb 2 o 3 is not as toxic as As 2 o 3 that high, but Sb 2 o 3 still toxic
Moreover, compared with arsenic, the temperature of antimony to produce clear gas is lower, and the effectiveness of removing the bubbles of this alkali-free glass is lower.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] A formula for environment-friendly TFT-LCD substrate glass, the key is: the composition of each component in the glass substrate includes: 55-63% SiO 2 , 7~13% B 2 o 3 , 12-21% Al 2 o 3 , 3-8% CaO, 0-8% SrO, 0-10% BaO, 0.7-4.0% ZnO, 0.1-1.0% SnO.

[0021] Among the above components, SiO 2 with B 2 o 3 The mass and accounted for 62 to 76% of the total mass.

[0022] Among the above components, B 2 o 3 with A1 2 o 3 The mass and accounted for 19 to 34% of the total mass.

[0023] Among the above components, the mass sum of RO and ZnO accounts for 3.7-30% of the total mass, and the above RO represents any one of Ca, Sr, Ba, or any two or more oxides. mix.

[0024] The SiO 2 Preferably 57-61%.

[0025] The ZnO is preferably 0.8-3%.

[0026] Described BaO is preferably 2-6%.

[0027] When the present invention is implemented, the raw materials including the corresponding oxide mass percentage components of the above-mentioned glass substrates are uniformly s...

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PUM

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Abstract

Provided is a formula of environment-friendly thin film transistor liquid-crystal display (TFT-LCD) substrate glass. The formula is designed to be environment-friendly and more perfect in performance, an object glass substrate with no surface defects including bulbs is formed even if no As2O3 or Sb2O3 serving as clarifying agents is used, and the object glass substrate contains no As2O3 or Sb2O3 and their compounds. Components in raw materials of the glass substrate include by weight percentage: 56-64% of SiO2, 7-11% of B2O3, 14-18% of Al2O3, 3-8% of CaO, 0.5-8% of SrO, 0.1-10% of BaO, 0-2.0% of ZnO and 0.1-1.0% of SnO.

Description

technical field [0001] The invention relates to a component design of alkaline earth boron-aluminum glass, which can be widely used in the production of glass substrates for liquid crystal displays, especially an environmentally friendly TFT-LCD glass substrate, which is suitable for overflow, melting or down-drawing processes. Glass preparation. Background technique [0002] TFT liquid crystal display mode has a pixel response speed 600 times faster than the old LCD screen. The addition of advanced silicon electrodes greatly speeds up the pixel response speed of the LCD screen and reduces the delay of the screen. Higher technical requirements are put forward for the glass substrate. The geometric dimensions of the processed substrate must not be affected by thermal conditions, that is, the thermal expansion coefficient of this type of glass substrate should be small. According to the comprehensive consideration of the production stress in the production of the glass substr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/093
Inventor 张广涛李俊锋阎冬成刘文泰李兆廷
Owner SHIJIAZHUANG XUXIN OPTOELECTRONIC TECH CO LTD
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