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Combined touchscreen and membrane switch

  • US 20040085299A1
  • Filed: 10/30/2002
  • Published: 05/06/2004
  • Est. Priority Date: 10/30/2002
  • Status: Abandoned Application
First Claim
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1. A combined touchscreen and membrane switch comprising:

  • a) a front layer formed of a continuous flexible sheet and having;

    i) a transparent portion supporting a transparent conductor on a rear surface; and

    ii) a graphic portion printed with button symbols;

    b) a spacer layer positioned behind the front layer and having openings aligned with the transparent portion and at least one button symbol;

    c) a transparent rear layer positioned behind the spacer layer supporting a transparent conductor on a front surface opposed to the transparent portion of the front layer; and

    d) a membrane switch circuitry positioned behind the graphic portion and aligned with the button symbols to be activated upon pressing of the button symbols;

    wherein a single surface is presented to the user having minimum resistance to touchscreen operation.

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