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Fully-sealed touch control integrated liquid crystal screen and manufacturing process thereof

A fully sealed, liquid crystal screen technology, applied in optics, instruments, electrical and digital data processing, etc., can solve the problems of moiré, low yield, and poor thickness due to differences in display screens, achieve good solid-state fluidity, and save production. The effect of low cost and low cost

Inactive Publication Date: 2015-04-08
OPTON (SHUNCHANG) OPTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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. Such as mobile phone screens) are more different, especially prone to moiré, and it is difficult to use a giant rotary degassing machine to degas a large-sized 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, but it is necessary to use solid OCA glue to bond the hard touch screen and the hard LCD screen, which is easy to use after autoclaving. When the kettle is pressurized and heated, there will be a thickness difference, resulting in dull defective products, the larger the area, the more dull, and the lower the yield

Method used

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  • Fully-sealed touch control integrated liquid crystal screen and manufacturing process thereof
  • Fully-sealed touch control integrated liquid crystal screen and manufacturing process thereof
  • Fully-sealed touch control integrated liquid crystal screen and manufacturing process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] A manufacturing process for a fully sealed touch-screen liquid crystal integrated screen, which uses solid ultraviolet flexible glue to bond sequentially arranged components to each other to form a whole. The components include a touch screen group, a liquid crystal screen group, a plexiglass frame and a glass cover. A backlight module is embedded between the liquid crystal screen group, the plexiglass frame and the glass cover; the process includes:

[0027] 1) Attach a piece of solid ultraviolet flexible glue with a thickness of 50-100 μm between any two adjacent components, and the backlight module is directly embedded between the LCD screen group, the plexiglass frame and the glass cover;

[0028] 2) Degassing: Put the components attached with solid ultraviolet flexible glue into the autoclave for 10-50 minutes for degassing, control the pressure in the autoclave to 0.5kg-3kg, and the temperature to 30-40℃;

[0029] 3) Curing: Use a high-power UV lamp to irradiate t...

Embodiment 2-3

[0035] Table 1

[0036]

[0037] In the embodiment, if the thickness of the solid ultraviolet flexible adhesive is less than 50 μm, the fluidity is not enough, and thickness difference is likely to occur. If the thickness is higher than 300 μm, the fluidity is too full and overflowing glue is likely to occur. If the temperature and pressure are lower than the limit value, the solid ultraviolet flexible adhesive will not be easily bonded to each component; during the defoaming process, the temperature is 30-65°C, the pressure is 0.5-10kg, and the defoaming time is 10-250 minutes. If the value is higher than the limit value, the The resin is easy to soften and cause glue overflow, and it will also produce thickness differences and dullness. In the actual production process, appropriate parameters can be selected within the above numerical range according to the different screen sizes for production.

[0038] The pre-lamination in the technological process of the present inve...

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Abstract

The invention discloses a manufacturing process of a fully-sealed touch control integrated liquid crystal screen. According to the manufacturing process, components which are arranged in sequence are glued to each other to form the fully-sealed touch control integrated liquid crystal screen through solid ultraviolet flexible glue; the components include a touch screen set, a liquid crystal screen set, an organic glass frame and a glass cover plate, wherein a backlight module is embedded among the liquid crystal screen set, the organic glass frame and the glass cover plate. According to transparent gluing bodies produced through the novel technology, bubbles cannot be easily generated, and the novel glued touch control display backlight integrated screen with features that the distances between every two adjacent gluing bodies are equal, the thickness difference and the unevenness difference do not exist, no stiffness phenomenon exists, and glue overflowing cannot easily happen can be manufactured.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G02F1/1333
CPCG06F3/041G02F1/1333G06F2203/04103
Inventor 卢璋
Owner OPTON (SHUNCHANG) OPTICS CO LTD
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