A display includes an effective display area and a frame area; an image overlap display area is disposed at a position in the effective display area, close to the frame area, and includes first display positions related to an image to be displayed in the effective display area and second display positions related to an image to be displayed in the frame area; the first and second display positions are distributed in an alternate form; a polarization splitting prism is disposed on a light-emitting surface of the display and at a position at least corresponding to the frame area and the image overlap display area; and a convergent prism configured to converge light from the second display positions in the image overlap display area to the frame area is disposed on a light-emitting surface of the polarization splitting prism. Also a tiled display is disclosed.