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Display device with touch sensor, potential control method and program

  • US 9,575,593 B2
  • Filed: 11/03/2015
  • Issued: 02/21/2017
  • Est. Priority Date: 11/22/2011
  • Status: Active Grant
First Claim
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1. A display device with a touch sensor comprising:

  • a plurality of display pixel electrodes;

    a common electrode arranged opposite to the display pixel electrodes;

    a display function layer having an image display function; and

    a 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,wherein a drive voltage for display applied to the common electrode by the control circuit is used as a drive signal for the touch sensor,wherein a signal supplied to gates of TFT circuits included in the display pixel electrodes is one of a pulse wave signal and a signal in which different three potentials are switched at given timings, andthe three potentials includes a first potential during the TFT circuits being off, a second potential for turning on the TFT circuits, and a third potential at the time of supplying the drive signal for the touch sensor.

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