Autostereoscopic multi-view 3D display with pivot function, using the image display of the square subpixel structure

We designed an autostereoscopic multi-view 3D display that has pivot function. Slanted parallax barrier and the image display with subpixel structure of the square shape is used. Subpixels corresponding to each viewing zone show the tendency of the uniform distribution for odd view number in case of the optical elements of the slanted angle of arctan(1/2) or (1/3). Due to the square subpixel shape, large change of zone distance can be prevented under 90 rotation of the display. By optimizing the slanted angle of the optical element and the zone distances, conditions were found where 3D subpixels are uniformly distributed and zone distance is smaller than the interocular distance at the portrait mode as well as at the landscape mode. 3D prototype was fabricated using LCD of 15-in. diagonal size and luminance distribution for each viewing zone was measured under 90-degree rotation. 3D performance under 90-degree rotation was verified by displaying 3D images of the different amount of the disparity.