Organic light emitting display device and method of driving the same

摘要

An organic light emitting display device capable of compensating for the threshold voltage and mobility of a driving transistor. The organic light emitting display device includes a pixel unit having a plurality of pixels formed at intersection areas of data and scan lines; a scan driving unit sequentially supplying a scan signal to the scan lines; a data driving unit supplying data signals to the data lines; a power supply unit outputting a high-potential pixel power source, a low-potential compensation power source and a low-potential ground power source to drive the pixels; and a power control unit supplying the compensation power source supplied from the power supply unit to the pixel unit during a first period (black frame period) of each frame, and supplying the pixel power source supplied from the power supply unit to the pixel unit during a second period (display frame period) of each of the frames.