Abstract: A display device in which continuity of content displayed on a screen is maintained between before and after a rotation of the screen, including: a display screen which is fixed to the display device and displays a partial region of an image; an operation detecting unit which specifies a position in the partial region of the image displayed on the display screen; a rotation detecting unit which detects rotation information which indicates a rotation of the display device in a plane including the display screen; and a display image determining unit which updates display content on the display screen to display the partial region of the image after the rotation on the display screen by rotating, based on the rotation information detected by the detecting unit, the partial region of the image around the position specified by the specifying unit.