Hard-to-hard LCD screen binding method

Abstract

The invention discloses a hard-to-hard liquid crystal screen binding method. The method comprises the steps that 1, function glass is coated with glue; 2, the glue with which the functional glass is coated is procured; 3, a glue layer is built; 4, alignment binding is carried out on the functional glass with the glue layer and a liquid crystal screen. By combining the LOCA and OCA technological characteristics, the hard-to-hard liquid crystal screen binding method has the advantages of being free of glue overflowing, high in binding force, high in reliability, free of back bubble phenomenon, suitable for binding of various sizes, uniform in stress distribution and the like; no obvious technological defect exists, the binding efficiency and yield are greatly improved, product performance is greatly improved, the cost is reduced, and retained profits are improved.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal display, in particular, the invention relates to a hard-to-hard liquid crystal screen binding method. Background technique [0002] With the continuous development of science and technology, display technology has also made significant progress, and LCD products tend to be diversified, and liquid crystal displays with different functions have come out one after another. For example, the essence of the touch display screen currently used on mobile phones or tablet computers is to bind a piece of flat glass with touch positioning function on the surface of the original LCD screen; To the LCD screen can effectively improve the contrast of the LCD display. The binding of these glass with touch positioning function and anti-reflection glass to the LCD screen is hard-to-hard binding. At present, LOCA (liquid optical adhesive) or OCA (solid optical adhesive) is generally used for hard-to-hard bin...

AI Technical Summary

Problems solved by technology

[0003] However, when using LOCA or OCA to hard-to-hard bind the LCD screen, there are different defects in both the process and the result.

Although the LOCA hard-to-hard bonding method has the advantages of strong adhesion, high reliability, small size restrictions, and uniform stress distribution, the biggest defect of LOCA is the phenomenon of glue overflow, which will make the bonding process abnormal. Problems such as cumbersome and low yield rate

Although the OCA hard-to-hard bonding method does not have the advantages of glue overflow and high production efficiency, it also has disadvantages such as weak adhesion, risk of anti-bubble, suitable for small-size bonding, and uneven stress distribution, etc.

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