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Chiral smectic liquid crystal device having alignment film over electrodes being different and having different pretilt from alignment film between electrodes

  • US 5,612,802 A
  • Filed: 01/17/1995
  • Issued: 03/18/1997
  • Est. Priority Date: 02/13/1991
  • Status: Expired due to Fees
First Claim
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1. A chiral smectic liquid crystal display device, comprising a first substrate provided with a first plurality of electrodes;

  • a second substrate provided with a second plurality of electrodes facing and intersecting said first plurality of electrodes to define a matrix arrangement of pixels;

    a chiral smectic liquid crystal interposed between said first and second substrates; and

    first and second orientation films formed on at least one of said first and second substrates;

    said first orientation film formed corresponding to and on said plurality of electrodes on said substrate, said second orientation film formed corresponding to and between said electrodes to fill step configuration between said electrodes,wherein said first orientation film provides a pre-tilt angle of said liquid crystal which is different from a pre-tilt angle provided by said second orientation film, and a pre-tilt angle of said liquid crystal disposed at a region where said first electrodes and said second electrodes are opposed to each other is different from a pre-tilt angle of said liquid crystal at a region where said first and second electrodes are not opposed to each other.

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