A display device comprising pixel circuits arranged in a matrix, in which each of the pixel circuits includes: an EL element; a capacitor for storing voltage; a drive transistor that provides, to the EL element, a current corresponding to the voltage stored in the capacitor to cause the EL element to emit light; a voltage supplier that applies a reference voltage to the drive transistor in an initialization period, and applies a reverse bias voltage to the drive transistor in a predetermined period before the initialization period, the reference voltage being higher than a threshold voltage of the drive transistor and providing a forward bias between the gate and source electrodes of the drive transistor, the initialization period being a period for initializing the pixel circuit, the reverse bias voltage providing a reverse bias between the gate and source electrodes of the drive transistor.