A control device controls a display device capable of displaying visual information for a passenger of a moving body, in two or more display regions. The control device causes adjacent target regions of the display regions to change from a display state in which the information is displayed to a display restricted state in which display is restricted, according to a predetermined order, when a predetermined condition is satisfied. The control device determines the target regions and the order, based on a traveling direction of the moving body at the time when the condition is satisfied or a traveling direction of the moving body that is predicted after the time when the condition is satisfied.