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Bistable reflective cholesteric liquid crystal displays utilizing super twisted nematic driver chips

  • US 6,278,429 B1
  • Filed: 09/11/1998
  • Issued: 08/21/2001
  • Est. Priority Date: 09/11/1998
  • Status: Expired due to Term
First Claim
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1. A bistable cholesteric liquid crystal display, comprising:

  • a pair of opposed substrates, one said substrate having a first plurality of electrodes, the other said substrate having a second plurality of electrodes oriented in a direction different than said first plurality of electrodes;

    a cholesteric liquid crystal material disposed between said pair of opposed substrates and forming a pixel at each intersection of said first and second plurality of electrodes;

    a first super twisted nematic driver having a plurality of outputs connected to said first plurality of electrodes; and

    a second super twisted nematic driver having a plurality of outputs connected to said second plurality of electrodes, wherein both said drivers receive a plurality of voltage waveforms for selective transmission as respective voltage output waveforms to said first and second plurality of electrodes.

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