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Glass polishing process for liquid crystal display production

A liquid crystal glass and liquid crystal screen technology, applied in grinding/polishing equipment, machine tools suitable for grinding workpiece planes, manufacturing tools, etc., can solve the problem of low profit and income of manufacturers, low precision of liquid crystal glass, and large gap in roughness, etc. problem, to achieve the effect of short production time, small gap and high precision

Inactive Publication Date: 2020-01-07
CHANGCHUN FANGGUAN ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, after the existing glass used for LCD screen production is polished, the roughness of the glass after polishing varies greatly, resulting in low precision of liquid crystal glass, and it takes a long time to refurbish the glass with low precision in the later stage, resulting in low profit and income for the manufacturer. Therefore, a glass polishing process for liquid crystal screen production is proposed

Method used

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  • Glass polishing process for liquid crystal display production

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Effect test

Embodiment 1

[0033] See figure 1 , The present invention provides a technical solution: a glass polishing process for LCD screen production, including the following steps:

[0034] S1. Clean the impurities on the liquid crystal glass: evenly cover the surface and corners of the liquid crystal glass with the pickling agent, and let it stand for 100 minutes. The coverage standard of the pickling agent is 800ml / m 2 , After the pickling time, use 60℃ hot water to rinse, the rinse time is 90s;

[0035] S2. Rough polishing: Place the liquid crystal glass in the grinding disc, introduce the small particle size polishing powder into the polishing machine, use a fine grinding polishing pad to cyclically polish the liquid crystal glass, the polishing time is 3min / m, and the pressure is 2Mpa;

[0036] S3. Fine polishing: place the liquid crystal glass in an environment of 150℃, pass CO 2 The laser light source is polished, and the laser scanning speed is 15mm / s. After scanning for 20 cycles, stop scanning; ...

Embodiment 2

[0061] See figure 1 The present invention also provides a technical solution: a glass polishing process for the production of liquid crystal screens, which is different from the first embodiment and includes the following steps:

[0062] S1. Clean the impurities on the liquid crystal glass: evenly cover the surface and corners of the liquid crystal glass with the pickling agent, and let it stand for 110 minutes. The coverage standard of the pickling agent is 8250ml / m 2 , After the pickling time, use 65℃ hot water to rinse, the rinse time is 75s;

[0063] S2. Rough polishing: Place the liquid crystal glass in the grinding disc, introduce the small particle size polishing powder into the polishing machine, use a fine grinding polishing pad to cyclically polish the liquid crystal glass, the polishing time is 4min / m, and the pressure is 3Mpa;

[0064] S3. Fine polishing: place the liquid crystal glass in an environment of 200 ℃, pass the CO 2 The laser light source is polished, and the l...

Embodiment 3

[0072] See figure 1 The present invention also provides a technical solution: a glass polishing process for the production of liquid crystal screens, which is different from the first embodiment and includes the following steps:

[0073] S1. Clean the impurities on the liquid crystal glass: evenly cover the surface and corners of the liquid crystal glass with the pickling agent, and let it stand for 120 minutes. The coverage standard of the pickling agent is 800ml / m 2 , After the pickling time, use 70℃ hot water to rinse, the rinse time is 60s;

[0074] S2. Rough polishing: Place the liquid crystal glass in the grinding disc, introduce the small particle size polishing powder into the polishing machine, use a fine grinding polishing pad to circulate the liquid crystal glass, the grinding time is 5min / m, and the pressure is 2Mpa;

[0075] S3. Fine polishing: Place the liquid crystal glass in an environment of 250°C and pass the CO 2 The laser light source is polished, and the laser sc...

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Abstract

The invention relates to a glass polishing process for liquid crystal display production. The glass polishing process for liquid crystal display production comprises the following steps of S1, cleaning impurities on liquid crystal glass: uniformly covering a pickling agent to the surface and corners of the liquid crystal glass, and standing for 100 to 120min, wherein the pickling agent covering standard is 800 to 850ml / m<2>; after the acid picking time, flushing with hot water at 60 to 70 DEG C, wherein the flushing time is 60 to 90s; and S2, roughly polishing: placing the liquid crystal glassin a grinding plate, guiding small-particle-size polishing powder into a polishing machine, and using a fine-grinding polishing pad for cyclically polishing the liquid crystal glass, wherein the polishing time is 3 to 5min / m, and the pressure is 2 to 4Mpa. Firstly, the impurities on the liquid crystal glass are cleaned, then the liquid crystal glass is placed in the grinding plate, the small-particle-size polishing powder is guided into the polishing machine, the fine-grinding polishing pad is used for cyclically polishing the liquid crystal glass, then polishing is carried out through a CO2laser light source, and finally, the surface roughness of the liquid crystal glass is detected; and by adopting a polishing head for polishing at a fixed point so as to polish specifically, the produced liquid crystal glass is low in roughness, small in gap, high in accuracy and short in production time.

Description

Technical field [0001] The invention relates to the technical field of glass polishing treatment, in particular to a glass polishing process for liquid crystal screen production. Background technique [0002] The LCD screen is based on the liquid crystal material as the basic component. The liquid crystal material is filled between two parallel plates, and the arrangement of the molecules inside the liquid crystal material is changed by voltage to achieve the purpose of shading and transmitting light to display different shades, scattered There is a consistent image, and as long as a ternary color filter layer is added between the two plates, a color image can be displayed. LCD screens have very low power consumption, so they are favored by engineers and are suitable for electronic devices that use batteries. [0003] In the production process of LCD screens, the LCD glass needs to be polished. Polishing refers to a processing method that uses mechanical, chemical or electrochemic...

Claims

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Application Information

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IPC IPC(8): B24B7/24B24B37/04B24B49/12B24B51/00B08B3/08B08B3/10B08B11/04
CPCB08B3/08B08B3/10B08B11/04B24B7/242B24B37/042B24B49/12B24B51/00
Inventor 毛林才申明哲梁佳林
Owner CHANGCHUN FANGGUAN ELECTRONICS TECH CO LTD
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