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Low-cost mass-produced touch sensors

  • US 9,092,096 B2
  • Filed: 07/26/2010
  • Issued: 07/28/2015
  • Est. Priority Date: 07/26/2010
  • Status: Active Grant
First Claim
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1. A touch-operated electronics assembly, comprising:

  • a first plastic film having a front side for exposure to the environment and users and a back side, and comprising clear materials;

    a reverse-image non-conductive ink printing disposed on said back side of the first plastic film;

    a second plastic film having a back side on which a patterned layer of conductive inks is disposed;

    a masking layer on the back side of the first plastic film over and in back of the reverse-image non-conductive ink printing, wherein the masking layer comprises an opaque mask and a mask-free margin on the first plastic film around outside edges of the opaque mask, wherein the opaque mask is smaller than the first plastic film; and

    an adhesive layer that is larger than the opaque mask, wherein the adhesive layer joins the back side of the first plastic film to the second plastic film through the mask-free margin such that perimeter edges of the first plastic film is exposed to adhesive.

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