Patent ID: 7091992

Claim:
A three-dimensional display system comprising: an image processor for generating elemental images; an image display for displaying the elemental images generated by the image processor; a lens array, including at least one or more elemental lenses, for forming a three-dimensional image by refracting and integrating the elemental images displayed on the image display; and an elemental lens switch, located between the lens array and the image display, selectively opening and closing each elemental lens responsive to a control signal from the image processor, wherein the image processor generates an elemental image (Elemental_image_x[i][j], Elemental_image y[i][j]) of the object point P of the three-dimensional image, according to one of the subsequent equation sets, where P has a position of a coordinate (x, y) and the distance from the lens array to the paint P is z: first equation set: Elemental_image — x[i][j ]=lens — x[i][j ]+( f/z )*(lens — x[i][j]−x ); and Elemental_image — y[i][j ]=lens — y[i][j ]+( f/z )*(lens — y[i][j]−y ) or second equation set: Elemental_image — x[i][j ]=lens — x[i][j ]−( f/z )*(lens — x[i][j]−x ); and Elemental_image — y[i][j ]=lens — y[i][j ]−( f/z )*(lens — y[i][j]−y ) (wherein (lens_x[i][j], lens_y[i][j]); the coordinate of the center of the elemental lens which is located at the i-th coordinate from the left and the j-th coordinate from the top in the lens array, and f: the focal length of to elemental lens), and wherein the image processor generates a point of coordinate (Elemental_image x[i][j], Elemental_image y[i][j]) calculated by the equation described above as the elemental image of the point P, when the point (Elemental_image_x[i][j], Elemental_image y[i][j]) satisfies one of the following pairs of conditions: − Lx <Elemental_image — x[i][j ]−lens — x[i][j]<Lx and − Ly/ 2<Elemental_image — y[i][j ]−lens — y[i][j]<Ly /2; or − Lx/ 2<Elemental_image — x[i][j] −lens — x[i][j]<Lx /2 and − Ly <Elemental_image — y[i][j ]−lens — y[i][j]<Ly (wherein Lx: the size of the elemental lens in the x-direction, Ly: the size of the elemental lens in the y-direction).