A display device includes a pixel array unit having pixels disposed in a matrix shape, each pixel including an electro-optical element, a write transistor for sampling and writing an input signal voltage, a holding capacitor for holding a signal voltage written by the write transistor, and a driver transistor for driving the electro-optical element in response to the signal voltage held in the holding capacitor. The display device further includes a scan circuit for selectively scanning each pixel in the pixel array unit at a row unit basis and a plurality of power source supply scan circuits for selectively supplying a first potential and a second potential lower than the first potential to a power supply line wired per each pixel row of the pixel array unit to supply current to the driver transistors, synchronously with scanning by the scan circuit.