A display input device includes a display panel, a touch panel, and a panel control unit. The panel control unit performs the following control: when display of an item selection screen is started, a normal navigation image for selecting a category is displayed; when a wait time has elapsed since the start of displaying the normal navigation image, a reduced navigation image is displayed in place of the normal navigation image; when an expansion key is operated while reduction display is performed, the normal navigation image is redisplayed; and the normal navigation image is continuously displayed even when the wait time has elapsed since the start of redisplaying the normal navigation image.