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DISPLAY DEVICE WITH TOUCH SENSOR, POTENTIAL CONTROL METHOD AND PROGRAM

  • US 20130127752A1
  • Filed: 11/13/2012
  • Published: 05/23/2013
  • Est. Priority Date: 11/22/2011
  • Status: Active Grant
First Claim
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1. A display device with a touch sensor comprising:

  • plural display pixel electrodes;

    a common electrode arranged opposite to the display pixel electrodes;

    a display function layer having an image display function;

    a display control circuit performing image display control so as to fulfill the display function of the display function layer by applying a voltage for display between the display pixel electrodes and the common electrode based on an image signal; and

    a touch detection electrode provided opposite to the common electrode and forming capacitance between the touch detection electrode and the common electrode,wherein a drive voltage for display applied to the common electrode by the display control circuit is used as a drive signal for the touch sensor, anda gate potential of TFT circuits included in the display pixel electrodes is increased during a period when the drive signal for the touch sensor is applied.

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