Patent ID: 8456391

Claim:
A method of driving a pixel circuit including a light emitting element and a driving transistor which are connected in series, and a storage capacitor disposed between a path between the light emitting element and the driving transistor and a gate of the driving transistor, the method comprising: supplying a driving signal to the gate of the driving transistor, a time rate of change of a potential of the driving signal varying over time; stopping the supply of the driving signal at a first time point which is set to be variable in accordance with a gradation specified for the pixel circuit; setting a first voltage between the gate of the driving transistor and a source of the driving transistor in accordance with a mobility of the driving transistor and a threshold voltage of the driving transistor by flowing a current between a drain of the driving transistor and the source of the driving transistor based on a first time rate of change of a potential of the driving signal at the first time point; and supplying a driving current to the light emitting element, the driving current proportional to the first voltage.