DISPLAY DEVICE WITH TOUCH SENSOR, POTENTIAL CONTROL METHOD, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To improve precision of a touch sensor.

SOLUTION: A display device with a touch sensor includes: a display function layer having a plurality of display pixel electrodes, a common electrode provided opposite to the display pixel electrodes, and an image display function; a display control circuit which performs image display control so as to exhibit the display function of the display function layer by applying a display voltage between the display pixel electrodes and the common electrode on the basis of an image signal; and a touch detection electrode provided opposite to or side by side with the common electrode, and forming capacitance with the common electrode. The device places potentials of gates of TFT circuits constituting the display pixel electrodes in a floating state while a driving signal for touch sensor is applied by using a display driving voltage applied to the common electrode by the display control circuit as the driving signal for touch sensor. The present technique is applicable to a display device with a touch sensor which has the touch sensor and the display device united.

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