Data voltages according to data signals that have been written during a previous frame period remain in the first nodes N21 of the respective pixels PX even after termination of light emission. According to the illustrated embodiment, for initialization of the first node N21, a first operation that connects the first node N21 and the anode and a second operation that initializes the second node N22 and the anode to the first power ELVDD of the first level ELVDD_L may be iteratively performed. In the timing diagram of FIG. 10, the first operation is performed two times and the second operation is performed three times, but the first node N21 may be initialized only by sequentially performing the first operation, the second operation, and the first operation. Alternatively, the first node N21 may be initialized by iteratively alternately performing the first operation and the second operation during the initialization period PC1.

During the data writing period PC2, the first power ELVDD has the second level ELVDD_H and the second power ELVSS has the fourth level ELVSS_M, and the scan driver 20 may sequentially provide the scan signals S[1] to S[n] having the gate-on voltage level VGL to the scan lines such that the data signal D[j] can be written into the pixels PX.