Abstract: A naked-eye three-dimensional (3D) display device (600) is provided. The naked-eye 3D display device (600) comprises: a display component (610), comprising an array of display units (110); and a viewing angle regulator (620), comprising an array of microprism blocks (120, 620-1, 620-2, 620-3, 620-4, 620-5, 620-6). The microprism blocks (120, 620-1, 620-2, 620-3, 620-4, 620-5, 620-6) are divided into a plurality of groups, and an angle combination of a first angle (?1) and a second angle (?2) of each of the microprism blocks (120, 620-1, 620-2, 620-3, 620-4, 620-5, 620-6) is preset so that outgoing lights of the same group of microprism blocks converge into the same viewpoint, and outgoing lights of different groups of microprism blocks converge into different viewpoints. Hence, a plurality of different viewpoints are formed by setting angles of inclined surfaces of the microprism blocks (120, 620-1, 620-2, 620-3, 620-4, 620-5, 620-6), thereby seeing different 3D display effects from different viewing angles.

Abstract: The invention relates to image display technology, in particular to a device for rendering an augmented reality image and a system for realizing augmented reality display comprising the device.