Liquid crystal light valve with grooved microgrid and method of

Details Liquid crystal light valve with grooved microgrid and method of Liquid crystal light valve with grooved microgrid and method of

1988-09-07

1990-04-03

Miller, Stanley D.

Fishing, trapping, and vermin destroying

350347V, 350348, 350338, 437 2, 437225, 437227, 437228, G02F 113

Patent

active

049135317

ABSTRACT:
A liquid crystal light valve is provided with a microgrid of grooves in the photoconductor surface to divide the photoconductor into high resolution pixels. The liquid crystals fill the grooves to seal them and contribute to a potential barrier at the grooves that prevents lateral charge migration between pixels. In a metal oxide semiconductor (MOS) embodiment an oxide layer extends over the pixels and partially overhangs the grooves. A metal matrix mirror is formed over the insulative layer, and extends into a portion of the grooves to shield the underlying silicon from photoactivation while maintaining an electrical isolation between pixels.

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Efron et al., "The Silicon Liquid-Crystal Light Valve", Journal of Applied Physics 57(4), Feb. 15, 1985, pp. 1356-1358.
Grinberg et al., "A New Real-Time Non-Coherent to Coherent Light Image Invertor-The Hybrid Field Effect Liquid Crystal Light Valve", Optical Engineering 14, 217 (1975).

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