A scan driver includes a first decoder generating a plurality of output signals through a plurality of first logic gates, and a second decoder including a plurality of first logic circuits connected to a first terminal of a plurality of scan lines and a plurality of second logic circuits connected to a second terminal of the plurality of scan lines. The plurality of first logic circuits supply a source current to a corresponding scan line according to the corresponding output signal among the plurality of output signals. The plurality of second logic circuits sinks a sink current to the corresponding scan line according to the corresponding output signal among the plurality of output signals.