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Integrated touch screens

  • US 8,743,300 B2
  • Filed: 09/30/2011
  • Issued: 06/03/2014
  • Est. Priority Date: 12/22/2010
  • Status: Active Grant
First Claim
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1. A capacitive touch screen including a plurality of display pixels, the touch screen comprising:

  • a color filter layer;

    a thin film transistor (TFT) layer including a plurality of drive lines, wherein the drive lines are configured to transmit a stimulation signal, the stimulation signal used to stimulate the capacitive touch screen for the purpose of detecting touch input events;

    a liquid crystal layer disposed between the TFT layer and the color filter layer; and

    a plurality of sense lines disposed between liquid crystal layer and the color filter layer, wherein the sense lines are configured to receive signal based on the stimulation signals transmitted by the drive lines and wherein the drive lines and the sense lines form a plurality of capacitive sensing nodes.

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