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Method for improving reliability and yield of glue lamination of display substrate group

A substrate assembly and reliability technology, applied in bonding methods, adhesives, nonlinear optics, etc., can solve problems such as substrate warpage, achieve elimination of substrate warpage, improve yield and reliability, and improve hidden dangers and overflow The effect of controlling the risk of glue and glue shortage

Inactive Publication Date: 2020-09-11
NO 55 INST CHINA ELECTRONIC SCI & TECHNOLOGYGROUP CO LTD
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  • Abstract
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Problems solved by technology

[0016] The purpose of the present invention is to provide a method to improve the reliability and yield rate of the display substrate group water glue bonding, which is a new optical The water glue bonding method uses the leveling function of water glue coating on uneven substrates to eliminate hidden dangers of bonding bubbles that may be caused by factors such as warpage and unevenness in the original substrate, and improves the yield and reliability of bonded products. sex

Method used

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  • Method for improving reliability and yield of glue lamination of display substrate group
  • Method for improving reliability and yield of glue lamination of display substrate group
  • Method for improving reliability and yield of glue lamination of display substrate group

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0040] control figure 1 , including a first substrate 1 , an adhesive layer 2 and a second substrate 3 .

[0041] control figure 2 , The uneven first substrate 1 is directly bonded to the flat bonding layer 2 of the second substrate 3 , which may generate air gaps.

[0042] control image 3 , the first substrate 1 is concave on the bonding surface (such as image 3 a) Convex (eg image 3 b) Unevenness, the effect after being leveled by the water glue bonding layer 2.

[0043] control Figure 4 , concave (as Figure 4 a) Convex (eg Figure 4 b) The bonding effect of the first substrate 1 after the bonding surface is flattened, and the flat bonding surface of the second substrate.

[0044] control Figure 5 , the first substrate is coated with a flat glue layer 21 by water glue, and the second substrate is coated with water glue layer 22 .

[0...

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Abstract

The invention discloses a method for improving the reliability and yield of glue lamination of a display substrate group. The method comprises the steps of glue leveling treatment of a first substrate, glue leveling treatment of a second substrate, alignment laminating of the first substrate and the second substrate and substrate group solidification. The substrate group comprises a first substrate and a second substrate below the first substrate. The glue leveling treatment of the first substrate and the second substrate comprises the following steps: firstly, positioning the bonding surfaceof the first substrate or the second substrate on a bonding base station after laterally limiting the bonding surface of the first substrate or the second substrate upwards; then, adjusting the gluingfitting surface of the first substrate or the second substrate to be in a horizontal state; secondly, coating the surface of the first substrate or the surface of the second substrate with glue tillthe glue surface is flat; and finally, pre-curing the adhesive layer. According to the invention, the hidden danger of bonding bubbles caused by unevenness of the substrate is eliminated, the controlrisk of bonding glue overflow and glue shortage is reduced, the yield and reliability of bonded products are improved, and the production cost is saved.

Description

technical field [0001] The present invention relates to a display technology, in particular to a reinforced display technology, in particular to a method for improving the reliability and yield rate of water-glue lamination of display substrate groups. Background technique [0002] It is an effective technical measure to improve the environmental adaptability of the display to bond the display screen of the display with the multifunctional window glass panel, touch screen, etc. by using water glue technology. [0003] Optical lamination includes: dry film lamination represented by optical transparent pressure-sensitive adhesive film, etc.; water glue lamination represented by glue coating methods such as graphic dispensing, screen printing, and slit-coating. Due to the unevenness of the substrate and other factors, the water glue bonding method is better than the dry film bonding method in avoiding bubble defects. [0004] like figure 1 , usually the water-glue bonding of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13B05D1/26B05D1/00B05D3/02B05D3/06C09J5/00
CPCG02F1/1303B05D1/26B05D1/00B05D3/0254B05D3/067C09J5/00
Inventor 刘忠安
Owner NO 55 INST CHINA ELECTRONIC SCI & TECHNOLOGYGROUP CO LTD
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