In a display device and driving method thereof, a display device includes: a display panel including a pixel, the pixel including a light-emitting device (LED), the pixel receiving a data signal (DS) corresponding to a gate signal, the LED emitting light by a driving current flowing from a first power voltage to a second power voltage in response to the DS, the pixel receiving a reset voltage at least once after receiving one DS and before receiving a next DS, a data driver circuit supplying the DS to the pixel through a data line, a gate driver circuit for: supplying the gate signal to the pixel through a gate line, and outputting a light emission control signal for controlling supply of one of the reset voltage and the first power voltage to the LED, and a timing controller controlling the data driver circuit and the gate driver circuit.