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Liquid crystal color display and method

  • US 4,878,741 A
  • Filed: 12/16/1986
  • Issued: 11/07/1989
  • Est. Priority Date: 09/10/1986
  • Status: Expired due to Fees
First Claim
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1. An optical device, comprising an assemblage of plural groups of volumes of liquid crystal material, a plurality of said volumes comprising discrete capsules formed by containment medium of isolating polymer containing therein said liquid crystal material, the liquid crystal material in at least one of said groups comprising nematic or operationally nematic liquid crystal, the device being formed in such a way to maintain adequate resistivity to obtain a field across the liquid crystal material in response to an applied voltage to cause alignment of said liquid crystal material with respect to such field, said resistivity being obtained by purifying at least part of the containment medium prior to formation of the device.

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