A display device includes a display unit including a plurality of pixels connected to a plurality of scan lines and a plurality of data lines, an inverse image processor configured to receive a first image data signal input from an external source and to generate a gray-inverted second image data signal, a controller configured to mix the first image data signal and the second image data signal alternately for each frame to generate a third image data signal, and to generate a driving control signal opening and closing a pair of shutter spectacles for each image frame displayed in the display unit, and a data driver configured to receive the third image data signal from the controller and to apply a corresponding data voltage to each of the plurality of data lines.