Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1995-10-12
1998-08-04
Gross, Anita Pellman
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349110, G02F 11335, G02F 11333
Patent
active
057902194
ABSTRACT:
A color liquid-crystal display panel comprising switching elements, pixel electrodes, and feed wirings made of plural thinfilm layers deposited on the internal surface of one of the substrates, a color filter having an unevenness of more than 0.3 .mu.m, a black mask, and a liquid-crystal layer disposed between said two substrates, wherein the length of overlap of the black-mask over the color filter for every pixel is slightly different at least in a direction within a plane parallel to said substrate in order to prevent the generation of inverse tilt domain in the rub-down area caused by an application of rubbing, attaining a high image quality without light leakage.
REFERENCES:
patent: 4948231 (1990-08-01), Aoki et al.
patent: 5162901 (1992-11-01), Shimada et al.
SID International Symposium Digest of Papers, Boston, May 17-22, 1992, vol. 23, 17 May 1992 Society for Information Display, pp. 789-792, XP 000479120, Yamanaka H. et al. 'Integrated Black Matrix on TFT Arrays'.
Patent Abstracts of Japan, vol. 14, No. 25 (Jan. 1990), Abstract of JP 1-266512, Oct. 1989.
Yamagishi Nobuyasu
Yamamoto Yoshitaka
Gross Anita Pellman
Matsushita Electric - Industrial Co., Ltd.
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