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Touch panel for an acoustic touch position sensor

  • US 5,329,070 A
  • Filed: 02/16/1993
  • Issued: 07/12/1994
  • Est. Priority Date: 11/16/1990
  • Status: Expired due to Term
First Claim
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1. A touch panel for use in a touch position sensor having at least one transducer mounted on said touch panel to impart a shear wave of a given wavelength for propagation in said touch panel, comprising:

  • a touch substrate capable of supporting shear waves for propagation therein;

    a back plate; and

    a substantially nonshear wave coupling adhesive disposed between said substrate and said back plate, said adhesive bonding said touch substrate to said back plate and substantially preventing shear waves propagating in said touch substrate from being coupled to said back plate.

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