Ferroelectric liquid crystal device containing optically active

Details Ferroelectric liquid crystal device containing optically active Ferroelectric liquid crystal device containing optically active

1989-12-01

1990-12-25

Higel, Flyod D.

Compositions

Radioactive compositions

Nuclear reactor fuel

25229901, 2522991, 25229965, 25229968, 350350S, 534566, 534577, 534649, 534596, 560 35, 560 59, 560 61, 560 72, 560 73, 560102, 560106, 560107, 560108, 560109, C07C28308, C07C24506, G02F 1135, C09K 1924

Patent

active

049798057

ABSTRACT:
A ferroelectric liquid crystal composition containing an optically active mesomorphic compound represented by the following formula (I) or (II): ##STR1## wherein R.sub.1 and R.sub.2 are respectively an alkyl, and C with * represents an asymmetric carbon atom. The mesomorphic compound provides the ferroelectric liquid crystal composition with an extended operational life in a liquid crystal device.

REFERENCES:
patent: 3815972 (1974-06-01), Hsieh
patent: 3816334 (1974-06-01), Yamazaki
patent: 3893994 (1975-07-01), Steinstrader
patent: 4556727 (1985-12-01), Walba
patent: 4576732 (1986-03-01), Isogai et al.
patent: 4681404 (1987-07-01), Okada

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