Color filter substrate for a liquid crystal display and a method

Details Color filter substrate for a liquid crystal display and a method Color filter substrate for a liquid crystal display and a method

1995-11-06

1998-12-15

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349106, G02F 11335

Patent

active

058502718

ABSTRACT:
A color filter substrate for a liquid crystal display device is obtained by patterning color filters on a transparent substrate, selective-coating an overcoat layer on the substrate, and forming a common electrode and a black matrix to be connected each other, without any further step. This color filter substrate compensates a high sheet resistance of the common electrode and reduces a crosstalk and a surface reflection rate of the panel. In addition, the black matrix is formed on the color filters, and thus the reduction of the resistance of the common electrode is available. A process for forming the ITO layer on the black matrix is only required as an additional process, so that the step coverage is improved and thus no polyimide-off phenomenon is resulted during the rubbing process, while improving poor quality pixels which may be produced by the light leak and the polyimide-off.

REFERENCES:
patent: 4687298 (1987-08-01), Aoki et al.
patent: 4853296 (1989-08-01), Fukuyoshi
patent: 5045418 (1991-09-01), Fukuyoshi
patent: 5365357 (1994-11-01), Ohgawara et al.
patent: 5400157 (1995-03-01), Won
patent: 5666177 (1997-09-01), Hsieh et al.

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