Composite material, display device using the same and process of

Details Composite material, display device using the same and process of Composite material, display device using the same and process of

1996-05-01

1998-03-24

Sikes, William L.

Liquid crystal cells, elements and systems

With specified nonchemical characteristic of liquid crystal...

Utilizing change within liquid crystal phase

349 86, 349175, 349176, 349185, 25229901, G02F 1137

Patent

active

057318611

ABSTRACT:
A composite material includes a cholesteric liquid crystal; a polymer which is distributed in phase-separated domains and provides an effective form-retention property for the composite material; and an additional material which is dissolved in the cholesteric liquid crystal and maintains a cholesteric phase of the liquid crystal and bistability of a focal conic state and a planar state of the liquid crystal.

REFERENCES:
patent: 5200845 (1993-04-01), Crooker et al.
patent: 5251048 (1993-10-01), Doane et al.
patent: 5437811 (1995-08-01), Doane et al.
patent: 5493430 (1996-02-01), Lu et al.
patent: 5570216 (1996-10-01), Lu et al.
patent: 5661533 (1997-08-01), Wu et al.
D.K. Yang et al., "Chloesteric Reflective Display: Drive Scheme and Contrast", Appl. Phys. Lett 64(15), Apr. 11, 1994, pp. 1905-1907.

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