Patent ID: 8269800

Claim:
A display device comprising a pixel circuit of a matrix of pixels and a driver circuit for driving the pixel circuit, the driver circuit including a write scan circuit that generates a write signal, and a drive scan circuit that generates a drive pulse signal, each pixel including: a signal level maintaining capacitor; a first transistor, turned on and off in response to the write signal, for connecting one terminal of the signal level maintaining capacitor to a signal line; a second transistor having a gate thereof directly connected to the one terminal of the signal level maintaining capacitor and a source thereof directly connected to the other terminal of the signal level maintaining capacitor; a current-driven self-luminous element with a cathode thereof held at a cathode voltage and an anode thereof connected to the source of the second transistor; a third transistor, turned on and off in response to the drive pulse signal, for connecting a drain of the second transistor to a power source voltage; and a fourth transistor connected to the other terminal of the signal level maintaining capacitor, the fourth transistor receiving the drive pulse signal at the source thereof with the drain thereof connected to the other terminal of the signal level maintaining capacitor, being turned on in response to a control signal applied to the gate thereof, and setting the other terminal of the signal level maintaining capacitor to a signal level of the drive pulse signal.