A display device includes a screen, first and second projectors, a detector, and a controller. The screen has first and second surfaces. The first projector projects a first horizontally non-inverted image as viewed from the first surface. The second projector projects a second horizontally non-inverted image as viewed from the second surface. The detector detects a person at least viewing one of the first and second surfaces. The controller controls switching of an operation between the first and second projectors in accordance with a detection result of the detector.