Patent ID: 7324075

Claim:
A pixel circuit comprising: a storage capacitor for receiving a data voltage on a first electrode and storing the data voltage; a driver transistor having its gate connected to the first electrode of the storage capacitor wherein an amount of current is controlled based on a voltage on the first electrode of the storage capacitor; an emissive element which emits light corresponding to a current flowing though the driver transistor; a first control signal line connected to a second electrode of the storage capacitor and to which a predetermined voltage or pulse-shaped signal is input; and a MOS type capacity element having a first electrode connected to a gate of the driver transistor and a second electrode connected to a second control signal line to which a predetermined voltage or pulse-shaped signal is input, wherein a capacitance of the MOS type capacity element changes in response to a change in voltage on the first or second control signal line; wherein at least one of a source and a drain of the MOS type capacity element is connected to the gate of the driver transistor and a gate of the MOS type capacity element is connected to the second control signal line.