An autostereoscopic display is provided which includes: a light source; a display panel which forms an image by controlling the transmittance of light incident from the light source; a display panel controller that controls the modulation of the display panel and that scans the display panel according to an image signal; a switching barrier that separates the viewing zone of an image beam incident from the display panel by electrically controlling light transmittance and which includes odd column cells and even column cells that are alternately arranged in a horizontal direction and are alternately switched between slits transmitting light and masks blocking light; and a switching barrier controller that controls barrier modes of the slits and the masks to be changed in synchronization with the scanning of the display panel.