Patent ID: 9207481
Filing Date: 2015-12-08
Classification: G02F,G06F,G09G

Abstract:
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, 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, and wherein the three potentials include 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.