A display device includes first and second display units each operable to display an image; a state detecting unit operable to detect a first state and a second state; a manipulation unit operable to be manipulated; and a control unit operable to control the first and second display units, wherein the control unit causes the first display unit to display the image when the state detecting unit detects the first state, and causes the second display unit to display the image when the state detecting unit detects the second state, the control unit switches a display unit to be activated from the first or second display unit which is displaying the image to the first or second display unit which is not displaying the image when the manipulation unit is manipulated, and the control unit causes the first or second display unit activated when the manipulation unit is manipulated to continuously display the image until the manipulation unit is manipulated again or until a change in state is detected twice by the state detecting unit.