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US 5,398,126 AGranted
Ferroelectric color liquid crystal device lacking alignment defects
AssigneeCanon Kabushiki Kaisha
InventorsHideaki Takao, Tatsuo Murata, Junichiro Kanbe, Miki Tamura, Masaru Kamio, Nobuyuki Sekimura, Yoshiki Kikuchi
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Abstract
Surface Stability Ferroelectric Liquid Crystal Device having color filters assembled therein avoids, generation of alignment defect ocurring in the initial alignment control step by providing space of 0-5 microns between adjacent color filters.
Claims9
A liquid crystal device comprising:
- (a) a pair of transparent electrodes having a plurality of confronting portions formed therebetween;
- (b) a pair of substrates supporting each of said pair of transparent electrodes;
- (c) a color filter layer comprising a plurality of color filters arranged on the inner side of at least one of the above pair of substrates and arranged at positions corresponding to each of said plurality of confronting portions, provided that a gap of at most 5 .mu.m is located between adjacent color filters without overlapping,
- wherein (i) a light-intercepting film is arranged at the gap between said adjacent color filters, (ii) said color filter layer has a thickness in the range of from 0.5 .mu.m to 5 .mu.m and (iii) said plurality of color filters provide a stepped difference of 1000 .ANG. or less;
- (d) a coated protective film provided between said color filter layer and said at least one of the above pair of electrodes;
- and
- (e) a ferroelectric liquid crystal arranged between said pair of substrates, wherein said color filter layer causes no alignment defect of said ferroelectric liquid crystal.
4 more elements
Dependencies are inferred from the claim text.