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Method for eliminating unevenness of LED friction grooves

A uniform and grooved technology, applied in the LCD field, can solve the problems of uneven friction grooves, unguaranteed yield rate, low production efficiency, etc., to ensure product yield and quality, improve production efficiency, and be easy to achieve.

Inactive Publication Date: 2015-12-02
CONHUI HUIZHOU SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This processing method is extremely unstable, and uneven friction grooves are still common. The production efficiency is low, the yield rate cannot be guaranteed, the waste is large, and it is very easy to miss inspection. It is a bottleneck process of friction production in the LCD industry.

Method used

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  • Method for eliminating unevenness of LED friction grooves
  • Method for eliminating unevenness of LED friction grooves

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0022] Such as figure 1 As shown, it is a scheme diagram of a method for eliminating uneven friction grooves of an LCD according to an embodiment of the present invention.

[0023] A method for eliminating the unevenness of LCD friction grooves. The ITO glass substrate 200 coated with a PI layer is rubbed and oriented by a friction roller 100. The ITO glass substrate 200 has a PIN pin (stitch) area 210, an electrode pattern area 220 and a side 230, including the steps of:

[0024] Step S10, attaching the friction roller 100 to the surface of the ITO glass substrate 200, the axis of the friction roller 100 is parallel to the side 230;

[0025] Step S20, rotating the friction roller 100 along the surface of the ITO glass substrate 200, so that the axis of the friction ro...

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Abstract

The invention discloses a method for eliminating unevenness of LED friction grooves. Friction orientation is conducted on an ITO glass substrate coated with a PI layer through a friction roller, and the ITO glass substrate is provided with PIN regions, electrode patter regions and a side edge. The method comprises that step S10, the friction roller is tightly attached to the surface of the ITO glass substrate, wherein the axis of the friction roller is parallel to the side edge; step S20, the friction roller rotates along the surface of the ITO glass substrate so as to enable the axis of the friction roller and the side edge of the ITO glass substrate to form an included angle; step S30, the friction roller is turned, and meanwhile the ITO glass substrate is linearly moved, wherein the linear moving direction of the ITO glass substrate is perpendicular to the axis direction of the friction roller. The scheme is simple and easy to achieve and does not need additional auxiliary equipment, the unevenness phenomenon of the LED friction grooves can be eliminated only by changing the angle of the friction roller and an operating angle of a product to be subjected to friction, a temporary glass storage process before friction can be omitted, production efficiency can be improved, friction cloth consumption can be reduced, and the yield and quality of the product can be ensured.

Description

technical field [0001] The invention relates to the technical field of LCDs, in particular to a method for eliminating uneven friction grooves of LCDs. Background technique [0002] In the manufacturing process of LCD screens, one of the process steps is rubbing alignment, whose main function is to make the PI alignment layer distribute dense and uniform grooves, so as to have the ability to align liquid crystal molecules. [0003] The rubbing process is to make the roller with flannelette rotate at high speed, and the roller runs at high speed to drive the fluff to rub against the glass coated with PI layer, leaving dense and small grooves on the PI layer. Due to the influence of the electrode layout and the shape of the ITO pattern, the depth of the friction groove will be uneven. The difference in the uniformity of the grooves may easily cause the difference in the pretilt angle of the PI, which affects the anchoring ability of the liquid crystal molecules, and eventuall...

Claims

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Application Information

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IPC IPC(8): G02F1/1337G02F1/1343
CPCG02F1/133784G02F1/1343
Inventor 王海曾新勇江龙廖文卓
Owner CONHUI HUIZHOU SEMICON
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