Integrated fully-sealed liquid crystal screen and manufacturing process for same

Abstract

The invention discloses manufacturing process for an integrated fully-sealed liquid crystal screen. Components which are sequentially arranged are laminated into a whole through a solid ultraviolet flexible adhesive, wherein the components comprise screen protecting glass, a liquid crystal screen set, a support frame and a rear glass cover plate, wherein edge lighting type backlight module is nested in the support frame. The integrated fully-sealed touch and display screen manufactured by the process is waterproof, damp-proof and ultrathin, all gaps of the screen protecting glass or the touch screen set, a liquid crystal display screen set and the side lighting type backlight module are eliminated, image definition is improved, and brightness can be reduced to achieve a remarkable energy-saving effect.

Description

technical field [0001] The invention relates to the technical field of touch screens, in particular to a fully sealed and anti-interference touch liquid crystal integrated screen and a manufacturing process thereof. Background technique [0002] Usually, the lamination of large-size transparent glass is to apply liquid UV ultraviolet photoresist on one glass surface, so that the photoresist flows and distributes evenly on the glass surface, and then another piece of uncoated transparent glass is glued from the head of the glued glass. Close to, use a roller on the surface of the uncoated glass to squeeze the gas and air bubbles in the liquid glue out of the bonded body, and finally use a high-power UV ultraviolet lamp on the top of the transparent bonded body to cure and bond. The whole set of gluing equipment is expensive, and liquid UV glue is used, because it is one-way extrusion flow, it is easy to produce thickness difference during the defoaming process, often there wi...

AI Technical Summary

Problems solved by technology

The process is complicated, and pressurized centrifugal rotation defoaming is used in the defoaming process, which is easy to produce thickness differences. The display screen with a larger area may be subjected to more pressure and temperature than a small-sized display screen during the lamination process. For example, the screen of a mobile phone) is more different, especially prone to moiré, and the larger the size, the longer the throwing distance, the harder it is to remove the bubbles, so it is difficult to use a giant rotary degassing machine to degas a large-size touch screen

[0004] Another example is the Chinese patent application number 201310379842.8, which discloses a method of using solid OCA glue to attach small-sized mobile phone touch screens and upper polarizers. Optical film-type polarizers can be used because they are soft. Solid OCA glue is used as the bonding medium to bond the soft polarizer and the hard touch screen. However, solid OCA glue is used to bond the hard touch screen and the hard LCD screen group. Roll to remove air bubbles, the OCA glue will be shaped as soon as it is pasted, and there is no fluidity, so it is easy to produce thickness differences when using an autoclave to pressurize and heat, resulting in dull and defective products. The larger the area, the more dull and the lower the yield.

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