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Manual information input device

  • US 4,707,570 A
  • Filed: 02/12/1986
  • Issued: 11/17/1987
  • Est. Priority Date: 02/12/1985
  • Status: Expired due to Term
First Claim
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1. A manual information input device comprising:

  • a substrate supporting electrodes on one surface thereof;

    a resilient input panel disposed in facing relation to said substrate and supporting electrodes in confronting relation to said electrodes on the substrate;

    a spacer disposed between said substrate and said flexible input panel and defining a closed space therebetween;

    an electrically insulating, flowable, viscous material sealed in said space;

    said electrodes on said substrate and said input panel jointly constituting a pixel matrix; and

    said electrically insulating material comprising a group of particles and/or a liquid, said liquid filling said space when it is sealed in said space either singly or in combination with said group of particles.

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