Patent ID: 8253661

Claim:
A method of compensating for luminance of an organic light emitting diode display, which has a pixel matrix including a first pixel of a first color and a second pixel of a second color, the method comprising the steps of: generating feedback currents including a first feedback current for compensating for luminance of the first pixel of the first color and a second feedback current for compensating for luminance of the second pixel of the second color, the feedback currents generating step comprising: generating a first operational current of a first dummy light emitting component of the first color and generating a second operational current of a second dummy light emitting component of the second color, wherein the first operational current and the second operational current respectively simulate luminance attenuation of the first pixel of the first color and the second pixel of the second color with time; and substantially duplicating the first operational current and the second operational current as the first feedback current and second feedback current respectively; generating a first compensating voltage according to the first feedback current and generating a second compensating voltage according to the second feedback current; compensating for luminance of the first and second pixels by at least adjusting a first data current applied to a first data line for driving the first pixel and a second data current applied to a second data line for driving the second pixel according to the first compensating voltage and the second compensating voltage respectively.