A display device includes a display panel including a pixel including a first sub-pixel displaying a first color, a second sub-pixel displaying a second color, and a third sub-pixel displaying a third color, a data driver applying a data voltage generated based on input image data to the pixel in an active period, sensing the first sub-pixel to generate first sensing data in a blank period, sensing the second sub-pixel to generate second sensing data in the blank period, and sensing the third sub-pixel to generate third sensing data in the blank period, and a driving controller compensating for the first sensing data, the second sensing data, and the third sensing data based on a grayscale value of the input image data.