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Passive display device

  • US 4,519,676 A
  • Filed: 01/24/1983
  • Issued: 05/28/1985
  • Est. Priority Date: 02/01/1982
  • Status: Expired due to Fees
First Claim
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1. A passive display device comprisingfirst and second supporting plates with at least one of said supporting plates being transparent,first and second electrodes on facing surfaces of said first and second supporting plates respectively, at least said first electrodes being transparent,third electrodes movable between said first and second electrodes by electrostatic forces, said third electrodes including apertured display parts secured to one of said first and second supporting plates by a plurality of resilient elements,wherein said resilient elements are located between said display parts of said third electrodes and said second of said supporting plates at a side remote from said first of said supporting plates, andan opaque liquid between said supporting plates, said opaque liquid having a color contrasting with a color of said third electrodes facing said first supporting plate.

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