Liquid crystal device

Details Liquid crystal device Liquid crystal device

1993-07-29

1994-12-20

Wu, Sheam

Compositions

Liquid crystal compositions

25229961, 25229963, 25229964, 25229965, 25229966, 25229967, 359 51, 359 52, 359102, 428 1, C09K 1952, C09K 1906, G02F 113

Patent

active

053743717

ABSTRACT:
A liquid crystal device which comprises a pair of substrates having an electrode layer, at least one of said substrates being transparent, and a light-control layer supported between the substrate is disclosed, wherein said light-control layer comprises a continuous liquid crystal phase composed of a nematic liquid crystal material and a transparent solid substance having the three dimensional network existing in said continuous liquid crystal phase, said nematic liquid crystal material having an optical anisotropy (.DELTA.n) ranging from 0.18 to 0.3 and a dielectric anisotropy (.DELTA..epsilon.) ranging from 15 to 30. The device can be driven at a low voltage to provide a display of sufficient contrast and is applicable to a multiplexing drive system.

REFERENCES:
patent: 3687515 (1972-08-01), Haas et al.
patent: 4285829 (1981-08-01), Eidenschink et al.
patent: 4435047 (1984-03-01), Fergason
patent: 4707080 (1987-11-01), Fergason
patent: 4992201 (1991-02-01), Pearlman

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