Liquid crystal compound and liquid crystal display device

Details Liquid crystal compound and liquid crystal display device Liquid crystal compound and liquid crystal display device

1992-01-29

1994-11-15

Wu, Shean

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 560 59, 560 61, 560 62, 560 65, 560 73, 560 76, 560 83, 560102, 568631, 568647, 568661, 359103, C09K 1912, C07C 6976, C07C 4302, G02F 113

Patent

active

053645600

ABSTRACT:
An antiferroelectric liquid crystal compound which is a compound represented by ##STR1## wherein R denotes a linear aliphatic alkyl group having 6 to 14 carbon atoms; A denotes a single bond or an oxygen atom; X and Y independently denote a hydrogen atom or a fluorine atom but they are not hydrogen atoms at the same time; h and i are independently 1 or 2; m is an integer of 3 to 10; Z denotes CH.sub.3, C.sub.2 H.sub.5 or CF.sub.3 ; k is 0 or an integer of 5 to 8; l is 0 or 1; n is an integer of 1 to 6; W denotes CH.sub.3 or CF.sub.3 ; when W is CH.sub.3, p and q are both 0 and r is 8; when W is CF.sub.3, p is 5 to 8, q is 1 and r is 1 to 4; and C* denotes an asymmetric carbon atom,
and a liquid crystal display device using same.

REFERENCES:
patent: 4921632 (1990-01-01), Nakamura
patent: 5167861 (1992-12-01), Suzuki et al.
patent: 5194179 (1993-03-01), Suzuki et al.
patent: 5262086 (1993-11-01), Suzuki et al.
patent: 5264150 (1993-11-01), Yui et al.
Chem. Abstracts, vol. 109, No. 14, 3 Oct. 1988, Columbus, Ohio, US; abstract No. 119862, p. 657; & JP-A-63 027 590 (Dainippon Ink and Chemicals, Inc.).
Chem. Abstracts, vol. 111, No. 4, 24 Jul. 1989, Columbus, Ohio, US; abstract No. 31748, p. 561; & JP-A-63 307 837 (Daicel Chemical Industries, Ltd.).
Database WPIL Sec. Ch, Wk. 8940, Derwent Publications, Ltd., London, GB; Class E, AN 89-289849 & JP-A-1 213 390 (Chisso Corp.) 28 Aug. 1989.

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