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Rubbing method and method of fabricating liquid crystal display device using the same

A grinding method and grinding roller technology, which are applied in grinding devices, grinding machine tools, manufacturing tools, etc., can solve the problems of reducing the aperture ratio and brightness, and the pattern cannot perform the grinding process normally, and achieve the effect of improving the aperture ratio.

Inactive Publication Date: 2012-05-16
LG DISPLAY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, since the abrasive cloth 35 is inclined to one side according to the shape of the pattern, the abrasive process may not be normally performed at the end of the pattern.
This may be affected by the shape of the pattern or the orientation of the abrasive cloth 35
[0019] In addition, in order to prevent light leakage due to high-step patterns, the size of the black matrix is ​​limited to be larger than a predetermined value
This may reduce aperture ratio and brightness

Method used

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  • Rubbing method and method of fabricating liquid crystal display device using the same
  • Rubbing method and method of fabricating liquid crystal display device using the same
  • Rubbing method and method of fabricating liquid crystal display device using the same

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Embodiment Construction

[0043] Embodiments will now be described in detail with reference to the drawings. For the sake of brevity in description with reference to the drawings, the same or equivalent elements are given the same reference numerals, and descriptions of these elements will not be repeated.

[0044] Hereinafter, the grinding method of the present invention and the method of manufacturing a liquid crystal display (LCD) using the same are explained in detail with reference to the accompanying drawings.

[0045] image 3 It is a perspective view schematically illustrating the polishing process of the present invention.

[0046]As shown in the figure, the grinding device of the present invention includes: a first grinding roll 130a and a second grinding roll 130b, and the first grinding roll 130a and the second grinding roll 130b rotate in different directions to perform two-way grinding; a workbench 120 , the workbench 120 is arranged below the first grinding roller 130a and the second g...

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Abstract

A rubbing method and a method of fabricating a liquid crystal display (LCD) device using the same are discussed. The rubbing method is capable of decreasing disclination and rubbing tails resulting from a pattern of a high stair-step such as a column spacer. The rubbing method includes loading a substrate having an alignment layer formed thereon on a stage; performing a primary rubbing process on the alignment layer, by rotating a first rubbing roll on which a first rubbing cloth is rolled, in an opposite direction to a forming direction of a desired pretilt angle; and performing a secondary rubbing process on the primarily-rubbed alignment layer, by rotating a second rubbing roll on which a second rubbing cloth is rolled, in the forming direction of the desired pretilt angle.

Description

technical field [0001] The invention relates to a grinding method and a method for manufacturing a liquid crystal display (LCD) using the method, in particular to a bidirectional grinding method and a method for manufacturing an LCD using the method. Background technique [0002] With increasing interest in information display and increasing demand for portable information media, research and commercialization of flat panel displays (FPDs) to replace conventional display devices, namely cathode ray tubes (CRTs), are actively underway. A liquid crystal display (LCD), one of these flat panel displays, displays images using optical anisotropy of liquid crystals (LC). Due to their excellent resolution, color reproduction characteristics, and picture quality, liquid crystal displays are being actively used in notebooks, desktop monitors, and the like. [0003] In general, a liquid crystal display refers to a display capable of separately providing data signals to LC cells based ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B37/00
CPCG02F1/133784
Inventor 朴承烈卢韶颖金圣基金镇必孙庚模李宰源
Owner LG DISPLAY CO LTD
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