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Production method of liquid crystal glass substrate

A technology for liquid crystal glass substrates and production methods, applied in glass furnace equipment, glass manufacturing equipment, glass cutting devices, etc., can solve the problems of low production efficiency, high defective rate, poor quality of glass substrates, etc., and achieve high production efficiency , high yield, high quality effect

Active Publication Date: 2016-09-21
ZHENGZHOU XUFEI OPTOELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the current production of liquid crystal glass substrates, there are still defects such as high defective rate, poor quality of glass substrates and low production efficiency.

Method used

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  • Production method of liquid crystal glass substrate
  • Production method of liquid crystal glass substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1), prepare the glass substrate raw material according to the following weight percentage: 56% by weight of SiO 2 , 7% by weight of B 2 o 3 , 14 wt% Al 2 o 3 , 0.01% by weight of BaO, 3% by weight of CaO, 0.5% by weight of SrO and 0.1% by weight of clarifier SnO 2 ;

[0043] (2), set pressure sensors independently in the pool furnace area (1), platinum area (2), forming area (3), hot cutting area (4), hot cutting peripheral area (5) and half-wrapped area (6) , static pressure box, exhaust fan or adjustable air valve, detect the pressure through the pressure sensor and control the static pressure box, exhaust fan or adjustable air valve through the controller, or adjust the total air supply volume and total exhaust air volume of each area (1) operating environment pressure higher than atmospheric pressure 4Pa, platinum area (2) operating environment pressure higher than atmospheric pressure 14Pa, molding area (3) operating environment pressure higher than atmospher...

Embodiment 2

[0046] (1), prepare the glass substrate raw material according to the following weight percentage: SiO of 64% by weight 2 , 11% by weight of B 2 o 3 , 18 wt% Al 2 o 3 , 10% by weight of BaO, 8% by weight of CaO, 8% by weight of SrO, 0.5% by weight of ZnO, 4% by weight of MgO, 0.5% by weight of ZrO 2 and 1% by weight of clarifier SnO 2 ;

[0047] (2), set pressure sensors independently in the pool furnace area (1), platinum area (2), forming area (3), hot cutting area (4), hot cutting peripheral area (5) and half-wrapped area (6) , static pressure box, exhaust fan or adjustable air valve, the pressure is detected by the pressure sensor and the static pressure box, exhaust fan or adjustable air valve is controlled by the controller, and at the same time combined with the total air supply and exhaust air volume control of the adjustment area The pool furnace area (1) operating environment pressure is 6Pa higher than atmospheric pressure, platinum area (2) operating environm...

Embodiment 3

[0050] (1), prepare the glass substrate raw material according to the following weight percentage: 60% by weight of SiO 2 , 9% by weight of B 2 o 3 , 16 wt% Al 2 o 3 , 5% by weight of BaO, 5% by weight of CaO, 4% by weight of SrO, 0.25% by weight of ZnO, 2% by weight of MgO, 0.25% by weight of ZrO 2 and 0.5 wt% clarifier SnO 2 ;

[0051] (2), set pressure sensors independently in the pool furnace area (1), platinum area (2), forming area (3), hot cutting area (4), hot cutting peripheral area (5) and half-wrapped area (6) , static pressure box, exhaust fan or adjustable air valve, detect the pressure through the pressure sensor and control the static pressure box, exhaust fan or adjustable air valve through the controller, or control the total air supply volume and the total exhaust air volume Control the operating environment pressure of the pool furnace area (1) to be 5Pa higher than atmospheric pressure, the operating environment pressure of platinum area (2) to be 15P...

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Abstract

The invention discloses a production method of a liquid crystal glass substrate. The method includes the steps that 1, raw materials are sent to a pool furnace area for melting; 2, molten glass liquid is sent to a platinum area for purification; 3, the purified glass liquid is sent to a forming area for curing; 4, a glass plate is sent to a hot-cutting area for cutting and then transported by a hot-cutting peripheral area into a half-packaging area, packaging of the liquid crystal glass substrate is completed after check is conducted, and a semi-finished product of the liquid crystal glass substrate is obtained; the environmental pressure of the pool furnace area is controlled to be 4-6 Pa higher than the atmospheric pressure, the environmental pressure of the platinum area is controlled to be14-16 Pa higher than the atmospheric pressure, the environmental pressure of the forming area is controlled to be 10.5-12.5 Pa higher than the atmospheric pressure, the environmental pressure of the hot-cutting area is controlled to be 14-16 Pa higher than the atmospheric pressure, the environmental pressure of the hot-cutting peripheral area is controlled to be 11-13 Pa higher than the atmospheric pressure, and the environmental pressure of the half-packaging area is controlled to be 6-8 Pa higher than the atmospheric pressure. By means of the production method of the liquid crystal glass substrate, quality of the liquid crystal glass substrate can be remarkably improved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal glass production, in particular to a production method of a liquid crystal glass substrate. Background technique [0002] The liquid crystal glass substrate is an important component of the liquid crystal glass. Currently, the glass substrates used commercially have a main thickness of 0.7mm and 0.5mm, and will soon develop into a thinner thickness (such as 0.4mm). Basically, a TFT-LCD panel needs two glass substrates, which are respectively used as the bottom glass substrate and the bottom plate of the color filter. The glass substrates used in LCD can be roughly divided into two categories: alkali glass and non-alkali glass; alkali glass includes two types of sodium glass and neutral borosilicate glass, which are mostly used in TN and STN LCDs. The main manufacturers are Nippon Glass (NHT) , Asahi and Central Glass, etc., are mainly produced by the floating process; the alkali-free glass...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B5/16C03B33/02C03C3/091C03C3/093
CPCC03B5/16C03B33/02C03C3/091C03C3/093
Inventor 李青王光祥穆美强何永青杨勇姚利文王周周爱峰吴贤坤贾礼礼
Owner ZHENGZHOU XUFEI OPTOELECTRONICS TECH
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