Patent ID: 7372629

Claim:
A three-dimensional image display device comprising: a display panel on which a plurality of pixels are arranged in a matrix fashion, which constitute a plurality of display units arranged in matrix fashion, in each of which display units pixels for displaying a right-eye image and pixels for displaying a left-eye image are arrayed in a first direction in a first case, and which constitute a plurality of display units arranged in matrix fashion in each of which display units pixels for displaying a right-eye image and pixels for displaying a left-eye image are arrayed in a second direction orthogonal to said first direction in a second case; and an optical unit for distributing light emitted from the pixels arrayed in said first direction in said first case into mutually different directions along said first direction, and also distributing light emitted from the pixels arrayed in said second direction in said second case into mutually different directions along said second direction, wherein said pixels for displaying a right-eye image and said pixels for displaying a left-eye image are colored in Z number of colors, Z representing a natural number, said pixels having the same color being arrayed consecutively along said first direction, and said pixels having different colors being arranged consecutively along said second direction; and wherein the following expression holds, when Y represents mean interpupillary distance, e represents the magnifying projection width of one pixel in said first direction, and j is a natural number, e Z ≠ Y 2 × j the pitch of said pixels along said second direction being smaller than the pitch of said pixels along said first direction.