A driving method for an active matrix OLED display. In the driving method, a first current is provided to flow through an OLED of a pixel in a first period of one display period, according to a video signal on the data electrode and a scan signal on the scan electrode. Next, a second current is provided...http://www.google.com/patents/US7218295?utm_source=gb-gplus-sharePatent US7218295 - Driving method for active matrix OLED display