To make the case of Glasses Free 3D Displays in public areas viable, the size and quality of displays are critical. Thanks to Osram Opto Semiconductors’ cutting edge technology, a recent Glasses Free 3D Display introduced by Atech Korea Co., Ltd. measures up to 500 inches. These video display walls are intended to be used in indoor public areas, such as shopping mall and exhibition hall. With a contrast ratio of 4000:1 and screen brightness at 4,500 cd/m2, the viewing distance can be up to 30 meters.