Patent ID: 9478167
Filing Date: 2016-10-25
CPC Classification: G09G

Claim Text:
1. An organic light emitting display, comprising: a display panel including data lines, scan lines, power voltage lines, and pixels arranged at intersections of the data lines and the scan lines; a data driver to output data voltages to the data lines; a scan driver to output scan signals to the scan lines; a power supply source to supply at least a first power voltage to a first power voltage line; and a first power voltage compensation unit to generate a first compensation power voltage based on the first power voltage and a first feedback power voltage from a first power voltage line, the first power voltage compensation unit to output the first compensation power voltage to the first power voltage line, wherein the first power voltage compensation unit includes: an inverting amplifying unit to inversely amplify a difference between the first feedback power voltage and the first power voltage; and a non-inverting amplifying unit to non-inversely amplify a difference between the first power voltage and an output voltage of the inverting amplifying unit.