PIXEL AND ORGANIC LIGHT EMITTING DISPLAY DEVICE USING THE SAME

摘要

PURPOSE: A pixel and an organic electroluminescent display device including the same are provided to compensate a threshold voltage of a driving transistor and minimize the number of transistors included in the pixel. CONSTITUTION: A second electrode of a first transistor(CM1) is connected to an organic light emitting diode and a first electrode thereof is connected to a data line. A second transistor(CM2) is connected between a gate electrode of the first transistor and the second electrode and is turned on when a scan signal is supplied to a scan line. A storage capacitor(Cst) is connected between the gate electrode of the first transistor and a first power source. A third transistor is turned on when a current is supplied to the organic light emitting diode. A fourth transistor is turned on and off with the second transistor when a voltage is charged in the storage capacitor.