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Touch sensing display screen apparatus

  • US 5,038,142 A
  • Filed: 03/14/1989
  • Issued: 08/06/1991
  • Est. Priority Date: 03/14/1989
  • Status: Expired due to Term
First Claim
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1. Touch sensing display apparatus, comprising in combination:

  • a display means for visibly manifesting data on a surface thereof; and

    a computer system electrically connected to said display means for controlling the manifesting of data on said display means; and

    a frame means; and

    a plurality of spring elements connected to said frame means and to said display means, said spring elements being the sole support for said display means; and

    a plurality of strain sensor means associated with said spring elements, said sensor means providing electrical output signals in response to strains imposed in said spring elements by relative movement between said display means and said frame means; and

    electrical signal calculating means connected to receive said electrical signals from said plurality of strain sensor means, said calculating means calculating from said signals the locus and magnitude of singular forces imposed on said display means, said calculating means being connected to said computer system for providing results of its calculations thereto.

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