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Integrated touch screen

  • US 9,608,047 B2
  • Filed: 04/17/2014
  • Issued: 03/28/2017
  • Est. Priority Date: 11/22/2011
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a display stack for a touch-sensitive screen, the display stack comprising a plurality of layers in which a top layer comprises a substantially transparent cover layer, the plurality of layers further comprising a first polarizer that is below the substantially transparent cover layer and a second polarizer that is below the substantially transparent cover layer and a liquid crystal layer, the display stack being configured to display a color image;

    a touch sensor within the display stack, the touch sensor comprising;

    a plurality of first conductive electrodes formed on and contacting a color filter layer of a subset of the plurality of layers, the subset being below the substantially transparent cover layer; and

    a plurality of second conductive electrodes formed on and contacting the color filter layer of the subset of the plurality of layers; and

    wherein the plurality of first conductive electrodes and the plurality of second conductive electrodes are located between the first polarizer and the second polarizer.

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