Patent ID: 7986285

Claim:
A display device comprising: a pixel array unit including row scan lines, column signal lines, pixels disposed in a matrix shape at cross points between the scan lines and the signal lines, and power supply lines; and a driver unit for driving the pixel array, the driver unit including a main scanner for supplying control signal to each of the scan lines, a power supply scanner for supplying a power supply voltage switching between first and second potentials to each of the power supply lines, and a signal selector for supplying a signal potential as a video signal, and a reference potential, to each of the column signal lines, wherein each of the pixels includes a light emitting element, a sampling transistor, a driver transistor, and a holding capacitor, the sampling transistor having a gate connected to a scan line, one of a source and a drain connected to a signal line, and the other connected to a gate of the driver transistor, the driver transistor having one of a source and a drain connected to the light emitting element, and the other connected to a power supply line, the holding capacitor being connected across the source and a gate of the driver transistor, wherein the sampling transistor becomes conductive in response to a control signal supplied from the scan line, and samples a signal potential supplied from the signal line to hold the sampled signal potential in the holding capacitor, the driver transistor receives a supply of a current from the power supply scanner through the power line at a first potential and flows a drive current to the light emitting element in accordance with the held signal potential, the power supply scanner changes at a first timing the power supply line from the first potential to a second potential before the sampling transistors samples the signal potential, the main scanner makes the sampling transistor conductive at a second timing after the first timing to apply the reference potential from the signal line to the gate of the driver transistor, and the power supply scanner changes the power supply line from the second potential to the first potential at a third timing after the second timing.