A display apparatus for displaying a three-dimensional image using a parallax barrier scheme includes a display module having a display region in which a plurality of pixels are arranged, and a parallax barrier facing the display region. In the parallax barrier, a plurality of aperture regions are formed as light-transmissive regions so that each one of the aperture regions corresponds to a predetermined number of the pixels. In one embodiment, each of the aperture regions is in a shape that exhibits an identical shape when rotated by 90 degrees.