Liquid crystalline optical device operable at a low drive voltag

Details Liquid crystalline optical device operable at a low drive voltag Liquid crystalline optical device operable at a low drive voltag

1995-09-12

1997-10-07

Nagumo, Mark

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

With charge transferring layer of specified composition

349 88, 349 89, 349169, 524544, 524548, 524549, 526259, 526266, 526268, 526270, 25229901, 428209, G02F 1137

Patent

active

056745761

ABSTRACT:
In a liquid crystalline optical device, a light modulating layer composed of a liquid crystal and a high polymer resin is sandwiched between two substrates having electrode layers, at least one of the substrates being transparent. The polymer is a compound which is obtained by photopolymerization of a prepolymer containing a (meth)acryloyl compound having a stilbene skeleton, or a (meth)acryloyl compound including dioxane group or dioxolane group. The liquid crystalline optical device can be driven with a lower applied voltage and exhibits a reduced hysteresis.

REFERENCES:
patent: 4435047 (1984-03-01), Fergason
patent: 5384067 (1995-01-01), Doane et al.
patent: 5401437 (1995-03-01), Im
patent: 5437811 (1995-08-01), Doane et al.
M. Pfeiffer et al.; "Design of PSCT Materials for MIM Addressing"; SID 94 Digest, pp. 837-840.

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