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Liquid crystal device

  • US 4,688,897 A
  • Filed: 06/17/1985
  • Issued: 08/25/1987
  • Est. Priority Date: 06/17/1985
  • Status: Expired due to Term
First Claim
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1. A liquid crystal device for controlling certain characteristics of light from a light source incident thereon comprising:

  • first and second transparent substrates;

    a liquid crystal material sandwiched between the substrates;

    a transparent electrode supported by the first substrate;

    a grid including parallel electrical conductors supported by the second substrate adjacent the liquid crystal material, where the spacing between adjacent conductors in said grid is sufficiently small in relation to the wavelength of the incident light that the grid acts as a polarizer which transmits through it a substantial portion of light polarized along a first plane, and reflects from it a substantial portion of light polarized along a second plane; and

    second light polarizer positioned between the first substrate and the light source.

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