Patent ID: 8379178

Claim:
An image display device comprising: a display panel which has a plurality of pixel sections each of which includes n (n is a natural number equal to or more than two) types of pixels to display images for n viewpoints, said pixel sections being arrayed in a matrix in a first direction and in a second direction orthogonal to said first direction; an optical unit for sorting lights emitted from pixels arrayed in said first direction into mutually different directions along said first direction; and a display area provided in each of said pixels, wherein each display area includes a shape comprising a combination of a trapezoid and a rectangle, said trapezoid having two first sides substantially parallel in said first direction and two second sides, each which intersects both of said two first sides, wherein a longer side of said two first sides and a first longer side of said rectangle mutually make contact, wherein neither of said two second sides are parallel to said second direction and wherein each display area is substantially symmetric with respect to a line parallel to said second direction; wherein in said each display area, the direction orthogonal to said two first sides accord with said second direction, said each display area mutually adjacent in said second direction is arranged in mutually opposite directions so that each area is opposed to shorter side of said two first sides of said trapezoid or a second longer side of said rectangle, each display area of said pixels mutually adjacent in said first direction are point-symmetric with respect to a symmetry point defined as a middle point of a line segment connecting middle points of lines of symmetry, parallel to said second direction, in each of the pixels mutually adjacent in said first direction, in an interface between each display area mutually adjacent in said direction, a first shading portion having a width in the second direction is formed in a part where the shorter sides of said two first sides of said trapezoids are opposed to, and a second shading portion whose width in said second direction is narrower than the first shading portion is formed in a part where the second longer sides of said rectangles are opposed to, in each said display area mutually adjacent in said first direction, the shorter side of said two first sides of said trapezoid of a display area and the second longer side of said rectangle of an adjacent display area are not aligned in said first direction.