Patent ID: 8174473

Claim:
An image display device comprising: a display panel which includes a plurality of display pixels arranged in a matrix, each display pixel having M×N (M and N each represent a natural number) number of sub-pixels, said M×N number of sub-pixels included in each of said display pixels being formed within a square area; and a lenticular lens which has a plurality of cylindrical lenses arrayed along array direction of N number of sub-pixels, each of said cylindrical lenses corresponding to N number of sub-pixels, in said each display pixel, wherein said display panel is a color display panel comprising sub-pixels of three primary colors and M represents 3, and wherein when assuming a pitch of said sub-pixels arranged in a longitudinal direction along a ridge projection of said lenticular lens is a and a pitch of said sub-pixels arranged in a direction orthogonal to said longitudinal direction of said lenticular lens is b, an expression a:b=N:3 results, and wherein said primary color sub-pixels having the same color are arranged in a direction orthogonal to said longitudinal direction of said lenticular lens.