Patent ID: 8125513

Claim:
A stereoscopic display device comprising: a display device comprising red, green and blue pixels arranged in a lateral direction in the same row alternatively, the pixels being disposed within a display plane; a beam controlling element disposed in front of the display device and having one of a plurality of apertures or a plurality of lenses having an optical opening portion extending linearly in a vertical direction, the controlling element controlling beam directions from the pixels to form elemental images corresponding to the respective apertures or lenses of the beam controlling element; means for, by an effective pixel with a generally square shape comprising 6n×18n (n=1, 2, 3, . . . ) pixels arranged in a vertical direction and in a horizontal direction, applying the same parallax image information to 3n pixels arranged in a straight line in the same vertical direction as an extending direction of the opening portion of the beam controlling element and in the same position in a horizontal direction to display image signals as the total of 36n parallaxes at a stereoscopic image display time; and means for, by an effective pixel with a generally square shape comprising 3 pixels of red, green and blue arranged laterally, ignoring a lateral positional deviation by ⅙ an effective pixel width and regarding the effective pixel as a square arrangement to display image signals at a flat image display time where the beam controlling element has been detached or a function thereof has been invalidated, wherein: a vertical pixel pitch of the pixels arranged in one row in a lateral direction is three times a lateral pixel pitch of the pixels; pixels of two adjacent rows in a vertical direction are arranged such that lateral positions of the pixels of a first one of the two adjacent rows are shifted, relative to the pixels in a second one of the two adjacent rows, by ½ of the lateral pixel pitch; pixels of even or odd number rows in the same column in the vertical direction are arranged so that the colors of the pixels of even or odd number rows in the same column in the vertical direction alternate in red, green, and blue; and a lateral pitch of the elemental images is substantially equal to 18n (n=1, 2, 3 . . . ) times the lateral pixel pitch, and a lateral pitch of the apertures or lenses is smaller than 18n times the lateral pixel pitch.