Anti-ferroelectric liquid crystal with black display in one fram

Details Anti-ferroelectric liquid crystal with black display in one fram Anti-ferroelectric liquid crystal with black display in one fram

1997-10-14

1998-07-14

Sikes, William L.

Liquid crystal cells, elements and systems

With specified nonchemical characteristic of liquid crystal...

Within smectic phase

349 37, 349 28, G02F 113

Patent

active

057812675

ABSTRACT:
The present invention provides a spatial light modulator comprising a photoconductor having a current rectifying function and a liquid crystal layer having an antiferroelectric phase as a phase of the liquid crystal located between a pair of transparent electrodes, having a wide viewing angle and high-speed response, capable of reproducing a light-input dynamic picture including half-tone display, and being stable and reliable. Moreover, a liquid crystal display device which can be downsized by comprising a spatial light modulator, comprises a photoconductor having current rectifying function and a liquid crystal layer having the antiferroelectric phase as a phase of the liquid crystal located between a pair of transparent electrodes, a display device to input light to the photoconductor and a power source to apply the driving voltage to the spatial light modulator can be provided.

REFERENCES:
patent: 5329390 (1994-07-01), Fujiwara et al.
patent: 5384649 (1995-01-01), Takimoto et al.
patent: 5481320 (1996-01-01), Konuma et al.
T. Masuda, "Linear and Nonlinear Operations of Optically addressed . . . ", Japanese Journal of Applied Physics, vol. 33, No. 4A, Apr. 1994, Tokyo JP, pp. 1523-1525.
T. Oyama, "Tristable Operation of Antiferroelectric Liquid Crystal . . . ", Japanese Journal of Applied Physics, vol. 32, No. 5A, May 1993, Tokyo JP, pp. 1668-1670.

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