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Optical writing type liquid crystal light valve and writing apparatus therefor

  • US 5,231,282 A
  • Filed: 01/17/1992
  • Issued: 07/27/1993
  • Est. Priority Date: 01/22/1991
  • Status: Expired due to Term
First Claim
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1. An optical writing type liquid crystal light valve comprising:

  • a pair of electrodes;

    a photoconductive layer having a conductivity which changes according to light irradiation; and

    a liquid crystal layer having a molecular alignment which changes in accordance with an applied voltage;

    said liquid crystal layer and said photoconductive layer being positioned between said pair of electrodes;

    said photoconductive layer including,an inorganic insulating film, anda laminate of amorphous Si films;

    said inorganic insulating film being formed closest to one of said electrodes;

    said laminate of amorphous Si films being formed closest to said liquid crystal layer.

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