Patent ID: 8754912

Claim:
A display apparatus comprising: a plurality of light emitting units; and a plurality of driving circuits respectively configured to drive corresponding one of the light emitting units, a given one of the driving circuits including: a sampling switch configured to sample an image data from a signal line; a capacitor configured to store a voltage corresponding to the image data; a driving unit configured to control a driving current provided for a corresponding one of the light emitting units, in response to a voltage stored in the capacitor; a first switch connected between the capacitor and a current node of the driving unit, a second switch configured to provide a predetermined potential; a third switch connected between a first power supply line and the drive unit; a fourth switch connected between the drive unit and the corresponding one of the light emitting units, wherein the second switch is connected to the first power supply line, and the given one of the driving circuits is configured to be driven such that: in a first period, the second switch is set in conductive state so as to provide the predetermined potential from the first power supply line to the driving unit; in a second period, the first switch is set in conductive state so as to set a voltage of the capacitor to the voltage corresponding to the image data; in a third period, the third and the fourth switches are set in conductive state so as to provide the driving current from the first power supply line to the corresponding one of the light emitting units.