A display device and a display method are provided. The display device includes a display mechanism and a motion mechanism. The display mechanism includes a plurality of first display groups, a plurality of second display groups, and a plurality of third display groups arranged along a first direction. The motion mechanism is respectively connected to the first display groups, the second display groups, and the third display groups, and is configured to guide the first display groups, the second display groups, the third display groups to move along the first direction.