Display device and driving method thereof

摘要

Disclosed is a display device. The display device includes a panel, a display driver IC, and a touch IC. The panel includes a plurality of driving electrodes and a plurality of sensing electrodes. The display driver IC outputs a common voltage to the driving electrode and the sensing electrode in a display driving interval, outputs a reference voltage to the driving electrode during a touch non-sensing period in a touch driving interval, and outputs a driving pulse to the driving electrode to receive a sensing signal from the sensing electrode during a touch sensing period in the touch driving interval. The touch IC transfers a control signal and a selection signal for selecting the touch sensing period and the touch non-sensing period to the display driver, and senses whether there is a touch with the sensing signal and the reference voltage.

主权项

1. A display device, comprising:
a panel comprising a plurality of driving electrodes and a plurality of sensing electrodes; a display driver IC outputting a common voltage to the driving electrode and the sensing electrode in a display driving interval, outputting a reference voltage to the driving electrode during a touch non-sensing period in a touch driving interval, and outputting a driving pulse to the driving electrode to receive a sensing signal from the sensing electrode during a touch sensing period in the touch driving interval, the driving pulse swinging with respect to the reference voltage; and a touch IC transferring a control signal and a selection signal for selecting the touch sensing period and the touch non-sensing period to the display driver, and sensing whether there is a touch with the sensing signal and the reference voltage, the control signal allowing the display driver IC to sequentially output the driving pulse to the driving electrodes, wherein a minimum voltage of the driving pulse is the same as the common voltage.