Ferroelectric liquid crystal spatial light modulator with two th

Details Ferroelectric liquid crystal spatial light modulator with two th Ferroelectric liquid crystal spatial light modulator with two th

1993-07-16

1997-04-22

Sikes, William L.

Liquid crystal cells, elements and systems

Liquid crystal system

Computational system employing liquid crystal element

359108, 349 27, G02F 1135, G02F 300

Patent

active

056233523

ABSTRACT:
By using a ferroelectric liquid crystal light valve having a hydrogenated amorphous silicon photoconductive layer, a spatial light modulator may be driven by a method comprising the sequential application of successive pulse voltages of selective amplitude, polarity and duration to cause the spatial light modulator to manifest a second threshold level suitable for application of the device in Boolean processing applications and Fourier image processing.

REFERENCES:
patent: 5130830 (1992-07-01), Fukushima et al.
patent: 5132811 (1992-07-01), Iwaki et al.
patent: 5191408 (1993-03-01), Takanashi et al.
patent: 5420709 (1995-05-01), Kato et al.

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