Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1998-08-10
2000-07-04
Kelly, C. H.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
25229961, 25229901, 2522996, 349123, 349184, G02F 11335, G02F 11337, C09K 1902, C09K 1952, C09K 1934
Patent
active
060846496
ABSTRACT:
A tristable liquid crystal display device comprises (a) first and second opposed substrates, at least one bearing an alignment coating and each bearing at least one electrode so as to define one or a plurality of pixels; (b) a tilted smectic or induced tilted smectic liquid crystal composition disposed between the substrates; and (c) a pair of orthogonally disposed polarizers, each having a polarization axis, one polarization axis being aligned with the zero field optical axis of a tilted smectic or induced tilted smectic mesophase of the liquid crystal composition; wherein the substrates are disposed so as to provide an alignment of the liquid crystal composition, which comprises (i) at least one chiral liquid crystal compound; and (ii) at least one achiral liquid crystal compound that can be represented by the following formula:
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Amano Takashi
Keyes Michael P.
Martin Steven J.
Radcliffe Marc D.
Savu Patricia M.
3M Innovative Properties Company
Kelly C. H.
Kokko Kent S.
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