a display panel comprising a pixel arranged thereon;

a data driver integrated circuit configured to modulate video data and to supply a data voltage to the pixel through a data line;

a switch configured to be turned on in response to a parking voltage enable signal and to supply a parking voltage to the data line; and

a timing controller configured to control the data driver integrated circuit and the switching component to apply the data voltage to the pixel during a refresh period of a frame and the parking voltage to the data line during a hold period following the refresh period,

wherein the timing controller adjusts a parking interval for applying the parking voltage based on luminance of the video data, and

wherein the timing controller outputs the parking voltage enable signal at every i hold periods for an image with a first luminance and at every j hold periods for an image with a second luminance higher than the first luminance, where, i is a natural number greater than 1, and j is a natural number less than i.