ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME

摘要

The present invention relates to an organic light emitting display device which comprises: a pixel including an organic light emitting diode (OLED) emitting light by a data current (Ioled) corresponding to a data voltage (Vdata) and a pixel circuit (PC) controlling the size of data current (Ioled) flowing to the light emitting diode (OLED) from an operation power using switching of a driving transistor (DT) according to the data voltage (Vdata); a first compensating unit for compensating the data voltage (Vdata) based on threshold voltage of the DT included in a color pixel outputting color among the pixels; and a second compensating unit for compensating the data voltage (Vdata) based on threshold voltage of the DT included in a white pixel outputting a white color among the pixels. The compensating range of the threshold voltage of the second compensating unit is wider than the compensating range of the threshold voltage of the first compensating unit.