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Compliant overlay for use as an optically-based touch-sensitive screen

  • US 4,816,811 A
  • Filed: 03/15/1985
  • Issued: 03/28/1989
  • Est. Priority Date: 03/25/1985
  • Status: Expired due to Term
First Claim
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1. A touch-sensitive overlay adapted to be overlaid on the face of a display screen, comprisinga pouch formed from a pair of transparent sheets,a body of transparent gel sealed in said pouch, andmeans for attaching said pouch to said display screen.

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