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Miniature display device

  • US 4,383,255 A
  • Filed: 03/10/1981
  • Issued: 05/10/1983
  • Est. Priority Date: 03/11/1980
  • Status: Expired due to Term
First Claim
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1. A miniature display device comprising a plurality of shutter members having rest positions in which they obturate one or more cavities in a carrier and each being suspended from the carrier by two resilient attachments at opposite edges respectively of the shutter member, the attachments allowing the shutter member to turn about a torsion axis but acting torsionally to bias the shutter member back to its rest position, and means for subjecting each shutter member to an electric field to cause the member to turn through a substantial angle about its torsion axis, thereby to decrease its obturating action.

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