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Preparation method of ultra-thin glass, ultra-thin glass and application thereof

A technology of ultra-thin glass and glass frit, which is applied in glass manufacturing equipment, glass forming, glass tempering, etc. It can solve problems such as bending and deformation, achieve high compressive strength, improve yield rate, and improve thinning efficiency.

Pending Publication Date: 2021-11-12
河北光兴半导体技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem existing in the prior art that the glass with a thickness of 0.3 mm or less is prone to bending deformation when chemically thinning, and to provide a preparation method of ultra-thin glass and the application of ultra-thin glass

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  • Preparation method of ultra-thin glass, ultra-thin glass and application thereof

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preparation example Construction

[0021] The first aspect of the present invention provides a method for preparing ultra-thin glass, the method comprising:

[0022] (1) Thinning the glass frit twice to obtain an ultra-thin glass frit;

[0023] (2) In the presence of a binder, paste the ultra-thin glass frit on one or both sides of the support to obtain the first composite glass sample;

[0024] (3) chemically thinning the first composite glass sample to obtain a second composite glass sample;

[0025] (4) removing the support member and the cured binder in the second composite glass sample, and then performing finishing to obtain the ultra-thin glass initial product;

[0026] (5) Tempering the ultra-thin glass primary product to obtain ultra-thin glass.

[0027] In the present invention, the inventors use a specific support with excellent acid corrosion resistance to bond the ultra-thin glass frit obtained after secondary thinning, and carry out the single-layer or double-layer ultra-thin glass frit with the...

Embodiment 1

[0054] (1) Perform secondary thinning of ordinary glass to obtain ultra-thin glass frit with a thickness of 0.3mm, and conduct quality inspection on ultra-thin glass frit to screen out products with defects such as uneven thickness, dirt, and nodules, Clean the qualified products after screening;

[0055] (2) Teflon sheets with a thickness of 0.5 mm are used as support members, and rosin resin is used as a binder. Cut the length and width of the PTFE sheet to be consistent with the length and width of the above-mentioned ultra-thin frit. Use the manipulator to place the trimmed PTFE sheet on the operating frame, use the glue applicator to evenly coat the rosin resin on one side of the PTFE sheet (the coating thickness is 20 μm), and use the manipulator to coat a piece of ultra-thin glass The material is bonded to this surface, and then the whole is turned over, and the other side of the polytetrafluoroethylene sheet is also uniformly coated with rosin resin (the coating thick...

Embodiment 2

[0060] (1) Perform secondary thinning of ordinary glass to obtain ultra-thin glass frit with a thickness of 0.1mm, and conduct quality inspection on ultra-thin glass frit to screen out products with defects such as uneven thickness, dirt, and nodules, Clean the qualified products after screening;

[0061] (2) The supporting member is a polyvinyl chloride sheet with a thickness of 0.3mm, and methyl silicone oil is used as a binder. The length and width of the polyvinyl chloride sheet were cut to be consistent with the length and width of the above-mentioned ultra-thin frit. Use the manipulator to place the cut polyvinyl chloride sheet on the operating frame, use a glue applicator to evenly coat one side of the polyvinyl chloride sheet with methyl silicone oil (the coating thickness is 5 μm), and use the manipulator to spread a piece of ultra-thin glass frit Laminate with this surface, then turn the whole over, evenly coat the other side of the polyvinyl chloride sheet with met...

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Abstract

The invention relates to the technical field of glass production, and discloses a preparation method of ultra-thin glass, the ultra-thin glass and an application of the ultra-thin glass. The method comprises the following steps: (1) carrying out secondary thinning on a glass material to obtain an ultrathin glass material; (2) in the presence of a binder, pasting the ultrathin glass material on one side or two sides of a support member to obtain a first composite glass sample; (3) carrying out chemical thinning on the first composite glass sample to obtain a second composite glass sample; (4) removing the supporting piece and the cured binder in the second composite glass sample, and then carrying out finish machining to obtain an ultra-thin glass initial product; and (5) carrying out toughening treatment on the ultra-thin glass initial product to obtain the ultra-thin glass. According to the method provided by the invention, the problem that the glass with the thickness of 0.3 mm or below is easy to bend and deform when being subjected to chemical thinning can be solved, and the prepared ultrathin glass has the advantages of low roughness, high transmittance and high coaxial double-ring compressive strength.

Description

technical field [0001] The invention relates to the technical field of glass production, in particular to a preparation method of ultra-thin glass, ultra-thin glass and its application. Background technique [0002] With the upgrading of electronic display technology, display products are developing in the direction of thinner and higher performance. Among them, the thinning of display glass is the core issue that needs to be tackled for thinner and lighter display products. [0003] The preparation methods of ultra-thin glass mainly include primary method and secondary method. One-step method includes overflow down-draw method and float method. This method is technically difficult and has strict requirements on process and equipment. The secondary method includes physical thinning method, chemical thinning method and secondary thinning method. Among them, the physical thinning method is to grind and polish the glass by rotating the polishing disc and adding a polishing age...

Claims

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Application Information

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IPC IPC(8): C03C15/00C03B23/037C03B27/03G09F9/30
CPCC03C15/00C03B23/037C03B27/03G09F9/30
Inventor 李瑞佼胡恒广王丽红周波王世岚王肖义
Owner 河北光兴半导体技术有限公司
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