Mesomorphic compound, liquid crystal composition containing same

Details Mesomorphic compound, liquid crystal composition containing same Mesomorphic compound, liquid crystal composition containing same

1989-10-16

1992-05-26

Stoll, Robert L.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229966, 25229962, 549 1, 549 29, 549 59, C09K 1934, C09K 1932, C09K 1912, C07D33302

Patent

active

051165309

ABSTRACT:
A mesomorphic compound represented by the following formula (I): ##STR1## wherein R.sub.1 and R.sub.2 respectively denote a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent; X.sub.1 denotes any one of a single bond, --O--, ##STR2## X.sub.2 denotes any one of a single bond, --O--, ##STR3## Z.sub.1 denotes any one of ##STR4## --CH.sub.2 O-- and --CH.dbd.C(CN)--; and A.sub.1 denotes --A.sub.2 -- or --A.sub.2 --A.sub.3 -- wherein A.sub.2 and A.sub.3 respectively denote any one of ##STR5##

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H. Schadt and W. Halfrich, Voltage-Dependent Optical Activity of a Twisted Nematic Liquid Crystal, Applied Physics Letters, vol. 18, No. 4, (Feb. 15, 1971) pp. 127-128.

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