Patent ID: 7221341

Claim:
A method of driving a display apparatus, comprising the steps of: (a) providing the display apparatus, the display apparatus comprising a plurality of pixel circuits having an electroluminescence element, a driving transistor for providing driving current to drive the electroluminescence element and a capacitor connected to a gate of the driving transistor, and a column control circuit comprising a transistor, a first switch for providing a voltage signal to a gate of the transistor through a capacitor element, a switch circuit for connecting the gate of the transistor to a reference voltage source, and a second switch capable of providing a current signal to the plurality of pixel circuits from the transistor; (b) inputting a voltage of blanking level to the capacitor element through the first switch while connecting the gate of the transistor to the reference voltage source by the switch circuit; (c) inputting a video voltage through the first switch while disconnecting the gate of the transistor from the reference voltage source by the switch circuit so that a voltage is held by a gate capacitance of the transistor; (d) providing the current signal to a corresponding pixel circuit through the second switch according to the held voltage; (e) holding the current signal provided to the pixel circuit from the column control circuit as a charging voltage in a capacitor of the pixel circuit; and (f) providing the driving current through the driving transistor to the electroluminescence element based on the charging voltage held by the capacitor.