Next, referring to 
The first transistor T1 may be a driving transistor. In the exemplary embodiment, the first transistor T1 may include a gate connected to a first node N1, a first end connected to the first power ELVDD, and a second end connected to an anode of the organic light emitting diode OLED.
The driving current is a current that corresponds to the voltage difference between the gate and the first end of the first transistor T1, and the driving current is changed corresponding to a data voltage based upon an applied data signal D[j].
The second transistor T2 may connect the first node N1 and a second node N2 according to a level of an i-th scan signal S[i]. In the exemplary embodiment, the second transistor T2 may include a gate connected to an i-th scan line Si, a first end connected to the first node N1, and a second end connected to the second node N2.