Patent ID: 7969394

Claim:
A display device comprising a pixel circuit of a matrix of pixels and a driver circuit for driving the pixel circuit, each pixel including: a signal level maintaining capacitor; a first transistor, turned on and off in response to a write signal, for connecting one terminal of the signal level maintaining capacitor to a signal line; a second transistor having a gate thereof connected to the one terminal of the signal level maintaining capacitor connected to the first transistor and a source thereof 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 a drive pulse signal, for connecting a drain of the second transistor to a power source voltage; a fourth transistor, turned on and off in response to a control signal, for connecting the terminal of the signal level maintaining capacitor connected to the first transistor to a first fixed voltage; and a fifth transistor connected to the other terminal of the signal level maintaining capacitor, the fifth transistor having a gate thereof connected to a second fixed voltage, a drain thereof connected to the other terminal of the signal level maintaining capacitor and a source thereof connected to the drive pulse signal, and the driver circuit outputting the write signal, the drive pulse signal and the control signal, the drive pulse signal being output in one of three signal levels of first through third signal levels with the first signal level for turning selectively on the third transistor, the second signal level for turning selectively on the fifth transistor and the third signal level for turning off the third and fifth transistors.