A display device, comprising: a panel comprising a plurality of driving electrodes and a plurality of sensing electrodes; a display driver IC for outputting a common voltage (Vcom) to the driving electrode and the sensing electrode in a display driving interval, outputting a reference voltage (VRX_REF) 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 (VRX_REF); and a touch IC for transferring a control signal and a selection signal (Tx_SEL) 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 (VRX_REF), the control signal allowing the display driver IC to sequentially output the driving pulse to the driving electrodes, characterized in that a minimum voltage (VTX_LOW) of the driving pulse is the same as the common voltage (Vcom), wherein, when the display driving interval is ended and the touch driving interval starts, the display driver IC outputs the reference voltage (VRX_REF) to the driving electrode, in the touch sensing period where the selection signal (Tx_SEL) is received in the touch driving interval, the display driver IC outputs the driving pulse, having a minimum voltage (VTX_LOW) lower than the reference voltage (VRX_REF) and a maximum voltage (VTX_HIGH) higher than the reference voltage (VRX REF), to the driving electrode, and when the touch sensing period is ended in the touch driving interval, the display driver IC outputs the reference voltage (VRX REF), which is equal to a reference voltage (VRX_REF) applied to the sensing electrode, to the driving electrode. a panel comprising a plurality of driving electrodes and a plurality of sensing electrodes; a display driver IC for outputting a common voltage (Vcom) to the driving electrode and the sensing electrode in a display driving interval, outputting a reference voltage (VRX_REF) 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 (VRX_REF); and a touch IC for transferring a control signal and a selection signal (Tx_SEL) 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 (VRX_REF), the control signal allowing the display driver IC to sequentially output the driving pulse to the driving electrodes, characterized in that a minimum voltage (VTX_LOW) of the driving pulse is the same as the common voltage (Vcom), wherein, when the display driving interval is ended and the touch driving interval starts, the display driver IC outputs the reference voltage (VRX_REF) to the driving electrode, in the touch sensing period where the selection signal (Tx_SEL) is received in the touch driving interval, the display driver IC outputs the driving pulse, having a minimum voltage (VTX_LOW) lower than the reference voltage (VRX_REF) and a maximum voltage (VTX_HIGH) higher than the reference voltage (VRX REF), to the driving electrode, and when the touch sensing period is ended in the touch driving interval, the display driver IC outputs the reference voltage (VRX REF), which is equal to a reference voltage (VRX_REF) applied to the sensing electrode, to the driving electrode.