Patent ID: 8125416

Claim:
A pixel circuit, comprising: an organic EL element configured to emit light according to a drive current; a storage capacitor configured to be charged with a data voltage; a first driving transistor responsive to a charged voltage of the storage capacitor and configured to supply a drive current to the organic EL element; a second driving transistor connected to the storage capacitor and a predetermined power supply responsive to a potential corresponding to a voltage drop in the organic EL element, the second driving transistor configured to: supply a charge current to the storage capacitor; and supply charge current to the storage capacitor from a time when the storage capacitor is charged with the data voltage to when the drive current from the first driving transistor flows through the organic EL element, wherein, when the drive current from the first driving transistor is stopped by a change in the charged voltage of the storage capacitor, the drive current is supplied to the organic EL element for a period corresponding to the data voltage and corresponding to a voltage drop of the organic EL element, wherein the first driving transistor and the second driving transistor comprise p-channel transistors, wherein a source of the first driving transistor is connected to a first power supply, wherein a source of the second driving transistor is connected to a second power supply, and wherein the second power supply has a voltage higher than that of the first power supply.