Liquid crystal cells – elements and systems – Cell containing liquid crystal of specific composition – In smectic phase
Patent
1995-06-07
1997-08-12
Kelly, Cynthia Harris
Liquid crystal cells, elements and systems
Cell containing liquid crystal of specific composition
In smectic phase
25229901, 349123, G02F 113, C09K 1952
Patent
active
056571410
ABSTRACT:
A liquid crystal device is constituted by disposing a chiral smectic liquid crystal between a pair of substrates each provided with an electrode and a uniaxial alignment film. The chiral smectic liquid crystal is placed in such a quasi-smectic A alignment state that the liquid crystal molecules will have a single average molecular axis under no electric field application on a lower temperature side within chiral smectic C phase range, wherein the single average molecular axis can be confirmed as a position providing the darkest state when observed through cross nicol polarizers. Such a quasi-smectic A alignment state is effective in providing a liquid crystal device (or display apparatus) having an improved shock resistance and a good low-temperature storage properties.
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Mizuno Hiroshi
Terada Masahiro
Yamada Syuji
Canon Kabushiki Kaisha
Harris Kelly Cynthia
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