Patent ID: 8390543

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 said scan lines and said signal lines, and power supply lines disposed in correspondence of rows of the pixels; and a driver unit for driving the pixel array unit, the driver unit including a main scanner for supplying a sequential control signal to each of the scan lines to perform line sequential scanning of the pixels in a row unit, a power supply scanner for supplying, synchronously with the line sequential scanning, a power supply voltage switching between first and second potentials to each of the power supply lines, and a signal selector for supplying, synchronously with the line sequential scanning, 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 said scan line, one of a source and a drain connected to the 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 the power supply lines, and 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, and samples a signal potential and the reference potential supplied from said signal line to hold said sampled signal potential in said holding capacitor, the driver transistor receives a supply of a current from the power supply line at the first potential and flows a drive current to the light emitting element in accordance with the held signal potential, the control signal has a pulse width that is shorter than a time period that the signal line is at the signal potential such that the sampling transistor is conductive within the time period that the signal line is at the signal potential, and such that the sampling transistor becomes conductive after a start of the time period that the signal line is at the signal potential, and wherein the driver transistor receives the supply of the current from the power supply at the first potential while the sampling transistor is conductive to sample the signal potential.