A display device includes a display panel, a touch panel control unit, a plurality of scanning electrodes formed on the display panel, a plurality of detection electrodes formed on the display panel so as to intersect with the plurality of scanning electrodes, a drive signal supply unit for inputting a drive signal to each of the scanning electrodes, and a detection unit for detecting a detection signal from each of the detection electrodes. The touch panel control unit supplies the driving signal to each of the scanning electrodes from the drive signal supply unit to enable detection of a touch position of a detection object based on the detection signal detected, and supplies the driving signal to all of the scanning electrodes collectively from the drive signal supply unit to enable detection of approach of the detection object to the touch panel based on the detection signal detected.