ORGANIC LIGHT EMITTING DISPLAY AND DRIVING METHOD THEREOF

摘要

PURPOSE: An organic light emitting display and a driving method thereof are provided to reduce power consumption by controlling the voltage of a driving power source. CONSTITUTION: In an organic light emitting display and a driving method thereof, a pixel unit(100) comprises a plurality of cathode electrodes(110a,110b,110c,110d,110e). The pixel unit displays a pixel. A data driver receives an image signal. The data driver generates a data signal. The data driver transfers the data signal to the pixel unit A scan driver transfers the scanning signal to the pixel unit. The power supply unit comprises a first output terminal and a second output terminal A driving voltage calculation unit especially produces the voltage of the second power source to a plurality of cathode electrodes.