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A kind of grinding treatment method after thinning liquid crystal glass substrate

A technology for liquid crystal glass substrates and processing methods, which is applied to chemical instruments and methods, grinding machine tools, grinding devices, etc., and can solve problems affecting production efficiency, untreated bumps and convex points of incoming materials, and the yield rate of liquid crystal substrates cannot meet customer needs, etc. , to achieve the effects of improving production efficiency, shortening polishing time, and reducing the throwback rate after grinding

Active Publication Date: 2019-01-04
赣州帝晶光电科技有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of technology, the thinning of ultra-large and ultra-thin LCD panels has become the mainstream in the industry. The grinding fluid is the main material for grinding and polishing of the liquid crystal glass substrate thinning process, and the grinding fluid has become a difficult point for the surface yield of the liquid crystal substrate after grinding. The traditional grinding liquid is made of tap water and grinding powder with a particle size of 1.7 μm. The filter setting is generally filtered by anti-static gloves or stockings. After grinding, the surface of the liquid crystal substrate will mostly have mechanical scratches and incoming bumps that have not been cleaned. The yield rate of liquid crystal substrates cannot meet customer needs and high throwback affects production efficiency

Method used

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  • A kind of grinding treatment method after thinning liquid crystal glass substrate

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Embodiment 1

[0027] A method for grinding a liquid crystal glass substrate after thinning, comprising the following steps:

[0028] (1) Preparation of grinding liquid: grinding liquid is formed by mixing ultrapure water and cerium oxide polishing powder;

[0029] Connect the ultrapure water pipeline from the power department to the grinding machine;

[0030] Clean the grinding barrel first to ensure that there is no foreign matter or lumpy polishing powder on the inner wall; then add 2 / 3 bucket of ultra-pure water, start the circulation of the grinding liquid, wash away the remaining grinding liquid in the pipeline, and then wash the remaining grinding liquid in the grinding barrel Pour out the pure water. If there are foreign objects in the grinding barrel, continue to wash until it is clean;

[0031] Add ultrapure water to about 5cm above the grinding bucket, start stirring, and add 2000mL particle size of 1.0 μm cerium oxide polishing powder; the model of cerium oxide polishing powder ...

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Abstract

The invention belongs to the technical field of grinding for the thinning process of liquid crystal glass substrates, and discloses a grinding treatment method for a thinned liquid crystal glass substrate. By the adoption of the grinding treatment method for the thinned liquid crystal glass substrate, the defects of existing grinding techniques for thinning are overcome. The grinding treatment method for the thinned liquid crystal glass substrate comprises the following steps of preparation of grinding fluid, cleaning of a grinding machine, and grinding through the grinding machine. The grinding treatment method for the thinned liquid crystal glass substrate has the beneficial effects that mechanical scratches on the surface of the liquid crystal glass substrate can be obviously reduced effectively and conveniently, the surface grain yield of the ground liquid crystal glass substrate is increased, the probability of regrinding after grinding is lowered, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal glass substrate thinning process grinding, and in particular relates to a method for grinding a liquid crystal glass substrate after thinning. Background technique [0002] Flat panel displays include liquid crystal displays (LCDs), touch panels (TPs), plasma displays (PDPs), and organic electroluminescent devices (OLEDs). Liquid crystal display devices are attracting the most attention among flat panel display devices because they provide clear images with excellent resolution, consume less power, and can make display screens thinner. Liquid crystal display devices are used in mobile devices including mobile phones, notebook PCs, and televisions. [0003] At present, the thinning of liquid crystal glass substrates mainly adopts chemical thinning technology, and the process includes: sealing glue curing, chemical thinning, cleaning after thinning, grinding, manual cleaning after grinding, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B57/02B24B37/04B24B37/10B24B53/017C09K3/14
CPCB24B37/044B24B37/10B24B53/017B24B57/02C09K3/1463
Inventor 高华曾雁滨
Owner 赣州帝晶光电科技有限公司
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