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A scraper type jelly glue full lamination method

A full-fit, jelly-adhesive technology, applied in chemical instruments and methods, lamination devices, optics, etc., can solve the problems of gas can not be completely eliminated, fit bubbles, etc., to ensure uniformity and avoid glue overflow.

Inactive Publication Date: 2017-09-26
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, when liquid optical glue is used for full lamination among liquid crystal screens, glass, and films, a dispensing needle is used to draw graphics on one of the laminating surfaces. Three aspects to control glue overflow, glue shortage, and bad air bubbles. Due to uneven glue application or spreading, flatness of the bonding surface and equipment accuracy, such undesirable phenomena as glue overflow, glue shortage, and air bubbles cannot be avoided.
In order to control problems such as glue overflow, follow-up equipment manufacturers pre-applied a circle of dam-building glue around the bonding surface while controlling the amount of glue to ensure no glue overflow. However, because the dam-building glue is pre-cured in advance and has a certain height, During the subsequent bonding process, the gas in the bonding gap cannot be completely removed, resulting in bonding air bubbles

Method used

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  • A scraper type jelly glue full lamination method
  • A scraper type jelly glue full lamination method
  • A scraper type jelly glue full lamination method

Examples

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Embodiment Construction

[0031] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0032] Such as Figure 1-6 As shown, the full lamination method of the scraper type jelly glue of the present embodiment comprises the following steps:

[0033] S1. If figure 1 As shown, the mold 2 is combined with the bonding surface 1, the bonding surface 1 is a four-corner black matrix in the display area of ​​the LCD screen of the module, the mold 2 is a "mouth" shaped plate, and the mold 2 is provided with a hollow area, and the hollow area is Rectangular, the hollowed out area of ​​the mold 2 is opposite to the coating range of the liquid optical glue on the bonding surface 1, and the shape and size of the hollowed out area are equal to the coating range of the liquid optical glue on the b...

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PUM

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Abstract

Embodiments of the present invention provides a fully attaching method, comprising: attaching a mold to a attaching surface, the mold is provided with a hollow region corresponding to a coating region of liquid optical adhesive on the attaching surface and having a shape and a size both identical with that of the coating region of liquid optical adhesive on the attaching surface; distributing the liquid optical adhesive throughout the entire hollow region of the mold; pre-curing the liquid optical adhesive to convert the liquid optical adhesive into jelly adhesive; removing excessive adhesive on a surface of the mold; removing the mold; and fully attaching the attaching surface with another attaching surface and then curing the adhesive. The method effectively avoid defects such as overflow of adhesive, short molding and air bubbles that may be generated during a fully attaching process.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a scraper type jelly glue full lamination method when liquid optical glue is used for full lamination among liquid crystal screens, glass and films. Background technique [0002] In the prior art, when liquid optical glue is used for full lamination among liquid crystal screens, glass, and films, a dispensing needle is used to draw graphics on one of the laminating surfaces. Three aspects are used to control glue overflow, glue shortage, and bubble defects. Due to uneven glue application or spreading, flatness of the bonding surface, and equipment precision, such undesirable phenomena as glue overflow, glue shortage, and bubbles cannot be avoided. In order to control problems such as glue overflow, follow-up equipment manufacturers pre-applied a circle of dam-building glue around the bonding surface while controlling the amount of glue to ensure no glue overflow. H...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13G02F1/1333
CPCG02F1/133351G02F1/133325B32B37/1284B32B2037/1253B32B2307/412B32B2315/08B32B2457/202
Inventor 孙伟
Owner BOE TECH GRP CO LTD