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A glass thinning method and thinning device

A glass thinning and glass technology, which is applied in the field of flat panel display glass substrate thinning, to achieve the effect of ensuring uniformity, reducing sags, and smoothing the glass surface

Active Publication Date: 2019-02-22
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is how to reduce the defects generated on the glass surface during the glass thinning process.

Method used

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  • A glass thinning method and thinning device
  • A glass thinning method and thinning device
  • A glass thinning method and thinning device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, a glass thinning method provided by an embodiment of the present invention includes the following steps:

[0034] S1, providing a glass to be thinned; specifically, in this embodiment, before corroding the glass, the glass is cleaned with deionized water, and cleaning the glass in the early stage can remove impurities on the glass surface. Then attach the acid-resistant film on the side opposite to the side of the glass to be thinned, to protect the side opposite to the side to be thinned, and avoid corrosion to the pattern on the glass surface.

[0035] S2, using an acidic etching solution to corrode the surface of the glass to be thinned, and at the same time of corroding the glass, use a friction mechanism that moves relative to the glass to scrape the surface of the glass to be thinned. Preferably, the glass in this embodiment is fixed by vacuum adsorption or double-sided adhesive on the side opposite to the glass surface to be thinned, s...

Embodiment 2

[0039] Such as figure 2 As shown, the embodiment of the present invention also provides a glass thinning device for the above glass thinning method, including a platform 1 for fixing the glass 3, a friction mechanism 4 arranged above the platform 1, and a corrosion solution supply mechanism, In this embodiment, the corrosion solution supply mechanism is the corrosion tank 2, and the platform 1 is arranged in the corrosion tank 2. In the present embodiment, the friction mechanism 4 is a brush or a scraper, and the brush is preferably polyester fiber, vinyl ester resin, unsaturated One or more of polyester resin, engineering plastic or rubber. The glass thinning device of this embodiment further includes a power mechanism for driving the friction mechanism 4 and / or the platform 1 to move in a plane parallel to the working surface of the platform 1 . When in use, the glass 3 is fixed on the platform 1, the corrosive liquid in the corrosion tank 2 is not over the upper surface o...

Embodiment 3

[0046] The same technical content of the third embodiment and the second embodiment will not be described repeatedly. The content disclosed in the second embodiment also belongs to the content disclosed in the third embodiment. The third embodiment is a further optimization of the mechanism for providing specific characteristic corrosive liquid: image 3 As shown, the corrosive liquid supply mechanism is a spray device 6 arranged above the platform 1 , and the spray device 6 is used to spray the corrosive liquid to the working surface of the platform 1 . When in use, the glass 3 is fixed on the platform 1, and the spray device sprays the corrosive liquid onto the upper surface of the glass 3, so that the friction mechanism 4 is in contact with the upper surface of the glass 3. When the friction mechanism 4 and the platform 1 move relatively, The friction mechanism 4 can realize the scraping of the thinned surface of the glass 3 . In the glass thinning device provided in this e...

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Abstract

The invention relates to the technical field of flat panel display glass substrate thinning, in particular to a glass thinning method and device. The glass thinning method comprises the following steps that S1, a piece of glass to be thinned is provided; S2, acidic corrosive liquid is adopted for corroding the to-be-thinned surface of the glass, and a rubbing mechanism moving relative to the glass is used for scraping the to-be-thinned surface of the glass to be smooth while the glass is corroded. By means of the glass thinning method, impurities and stains on the surface of the glass can be removed, pits in the surface of the glass are reduced, thinning uniformity of the glass is guaranteed, and the surface of the glass is smooth.

Description

technical field [0001] The invention relates to the technical field of flat panel display glass substrate thinning, in particular to a glass thinning method and a thinning device. Background technique [0002] During the glass production process, a thinning process is required. At present, the most commonly used method is the slot-type acid etching thinning treatment process. During the entire acid etching process, the glass must fully react with the chemical solution in the chemical storage tank. When producing ultra-thin glass (less than 0.3mm), due to long soaking time, the original scratches on the glass will be enlarged to form pits, and the existence of these pits will affect the display effect. In addition, due to the long soaking time, the glass is prone to chipping in the thinning solution, and the thickness accuracy is difficult to control, and it is easy to cause cracks or deviation during tape-out. Contents of the invention [0003] (1) Technical problems to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C15/00
CPCC03C15/00
Inventor 李艺
Owner BOE TECH GRP CO LTD
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