Patent ID: 8120261

Claim:
An organic electroluminescence display, comprising: a pixel unit configured to control current between a pixel power supply and a ground power supply according to data signals and scan signals, wherein light is emitted according to the amount of the current to display an image during each of a plurality of frame periods; and a DC-DC converter configured to generate and sequentially output the pixel power supply and the ground power supply, wherein the ground power supply is output after the pixel power supply, and the output pixel power supply and the output ground power supply are continuously applied to the pixel unit throughout each frame period, wherein the DC-DC converter comprises: a first power supply unit configured to generate the pixel power supply after receiving enable signals and boosting an input voltage; a second power supply unit configured to output the ground power supply after receiving the enable signals and dropping the input voltage; a stabilization capacitor coupled to an output terminal of the first power supply unit and configured to stabilize the output voltage of the first power supply unit; and a delay element configured to delay the enable signals for a time before transferring them to the second power supply unit.