Liquid crystal devices

Details Liquid crystal devices Liquid crystal devices

1994-09-08

1996-03-12

Wu, Shean

Compositions

Liquid crystal compositions

25229901, 359103, C09K 1920, G02F 113

Patent

active

054983681

ABSTRACT:
A liquid crystal device wherein the liquid crystal material is a siloxane-containing compound characterised by the the general formula ##STR1## wherein R is a C.sub.1-10 alkyl or ##STR2## each R' is a C.sub.1-4 alkyl, T is ##STR3## X is an alkyl or halogen-substituted alkyl group having at least one chiral center, Y is F, m is 0, 1 or 2 and n is 10, 11 or 12. Also claimed is a device wherein the liquid crystal material is disposed between a pair of substrates.

REFERENCES:
patent: 4358391 (1982-11-01), Finkelmann
patent: 4981607 (1991-01-01), Okawa
patent: 5106530 (1992-04-01), Haas et al.
patent: 5138010 (1992-08-01), Keller et al.
patent: 5259987 (1993-11-01), McArdle et al.
patent: 5316693 (1994-05-01), Yuasa et al.
Coles, H. et al; Liquid Crystals, vol. 15, No. 5, Nov., 1993 "New Low Molar Mass Organosiloxanes with Unusual Ferroelectric Properties", pp. 739-744.
"Ferroelectric and electrochiric characterization of a new organic siloxane bimesogen", Redmond et al. Ferroelectrics, vol. 148(1-4), 332-36, 1993 (abstract).

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