An electronic display device includes a display unit that displays images and a barrier unit between the display unit and a user, and provides images to the user as two-dimensional images or stereoscopic images. The barrier unit includes first electrodes on a first surface, the first electrodes being spaced apart from each other, second electrodes on the first surface, at a first gap from the first electrodes and between the first electrodes, auxiliary electrodes on a second surface, corresponding to the first gap, the auxiliary electrodes configured to be driven in synchronization with any one of the two-dimensional images and the stereoscopic images, a common electrode on a third surface, and a liquid crystal layer between the common electrode and first, second, and auxiliary electrode. A barrier driver controls the barrier unit in accordance with whether two-dimensional images or stereoscopic images are to be displayed.