As shown in FIG. 3, the gate initialization transistor T4 may include the first gate initialization transistor T4a and the second gate initialization transistor T4b that are connected in series with each other between the gate of the driving transistor T1 and the first voltage line VL1. The first gate initialization transistor T4a may include a gate connected to the second scan line GIL_i, a source S connected to the gate of the driving transistor T1, and a drain D connected to a source S of the second gate initialization transistor T4b. The second gate initialization transistor T4b may include a gate connected to the second scan line GIL_i, the source S connected to the drain D of the first gate initialization transistor T4a, and a drain D connected to the first voltage line VL1.
In FIG. 3, the gate initialization transistor T4 includes two transistors connected in series with each other, but the gate initialization transistor T4 may include three or more transistors connected in series with one another. In another embodiment, the gate initialization transistor T4 may include one transistor.
The anode initialization transistor T7 applies the second initialization voltage VINT2 to the light-emitting element OLED in response to the third scan signal GB_i. The anode initialization transistor T7 may include a gate connected to the third scan line GBL_i, a source S connected to the anode of the light-emitting element OLED, and a drain D connected to the second voltage line VL2.