Patent ID: 7262751

Claim:
A driving method for an organic electroluminescent display device, the organic electroluminescent display device comprising a scan line, a data line, a first voltage supply line, a switching thin film transistor connected to the scan and data lines, a driving thin film transistor connected to the switching thin film transistor and the first voltage supply line, a storage capacitor connected between the switching thin film transistor and the first voltage supply line, and an organic light-emitting diode connected to the driving thin film transistor and a second voltage supply line, the method comprising: a) applying a black display voltage to the data line; b) applying a first gate ON signal to the scan line to supply the black display voltage to the driving thin film transistor; c) applying a video data voltage to the data line; and d) applying a second gate ON signal to the scan line to supply the video data voltage to the driving thin film transistor.