Organic light emitting display and driving method thereof

摘要

The present invention relates to a driving method of an organic light emitting display which is capable of displaying images at uniform luminance. A driving method of an organic light emitting display of an embodiment according to the present invention includes supplying a data signal to a pixel and, after the data signal is supplied, driving the pixel in a constant-voltage system during a first time period and in a constant-current system during a second time period.

主权项

1. A method of driving an organic light emitting display, comprising:
supplying a data signal to pixels; and after the data signal is supplied, driving the pixels in a constant-voltage system during a first time period of a frame period and in a constant-current system during a second time period of the frame period, a second power source at a second voltage being supplied during the first time period in response to an external control signal, the second power source at a first voltage being supplied during the second time period in response to the external control signal, the second voltage being set to be higher than the first voltage, the second power source being output from an output unit, the external control signal being amplified by an inverter to be delivered to the output unit.