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Stress seal for acoustic wave touchscreens

  • US 6,411,287 B1
  • Filed: 09/08/1999
  • Issued: 06/25/2002
  • Est. Priority Date: 09/08/1999
  • Status: Expired due to Fees
First Claim
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1. An acoustic touchscreen system, comprising:

  • an acoustic touchscreen coupled to a display device, said acoustic touchscreen defining a touch-sensitive area on a corresponding touchscreen surface;

    a frame mounted to said acoustic touchscreen, said frame located above said acoustic touchscreen, wherein a central opening in said frame substantially borders said touch-sensitive area;

    a plurality of coupling means, each of said coupling means coupling a corner portion of said frame to said display device; and

    a seal interposed between a lower surface of said frame and said acoustic touchscreen surface, wherein said frame imposes a substantially uniform compressive force on a portion of said seal contacting an approximately spherically curved portion of said acoustic touchscreen surface.

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