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Bar graph type touch switch and display device

  • US 4,121,204 A
  • Filed: 12/14/1976
  • Issued: 10/17/1978
  • Est. Priority Date: 12/14/1976
  • Status: Expired due to Term
First Claim
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1. A touch switch and display device comprising:

  • a linear array of display segments strung out such that each segment is adjacent to no more than two other segments, said display segments adapted to be progressively energized to form a bar graph type display to represent a numerical quantity;

    a linear array of light transmitting touch sensitive areas superimposed over said linear array of display segments; and

    circuit means responsive to said touch sensitive areas and connected for energizing said display segments such that when any one of said touch sensitive areas is touched, a corresponding display segment and all display segments to one side are energized, and the remaining display segments are de-energized.

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