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A three-dimensional integral imaging display system with non-uniform prism array is proposed to realize wide viewing angle.In our scheme,the light of reconstruction is converged to the optimal viewing position by using deflection ability of non-uniform prism array.Based on the principle of reconstruction processes of integral imaging system,ray tracing theory is utilized to derive relationship model between parameters of non-uniform prism array and field of view.At last,simulation results show the field of view has been significantly improved than that of traditional integral imaging.