An integral image 3D display system with enhanced viewing angle is designed. This system consists of a display panel, a convex micro lens array, a concave micro lens array and two orthogonal polarized sheets arrays. The display panel is used to display elemental image array, the two orthogonal polarized sheets arrays are used to eliminate the crosstalk between near two elemental images. Two micro lens arrays are used to construct the 3D image. In the designed display system, the viewing angle is related to the pitch of the image of the elemental image formed by convex micro lens, as the pitch of the image is bigger than the pitch of elemental image, the viewing angle of the designed system is bigger than that of the conventional integral image. At last, experimental results which agree well with the theory are given.
