Ryoji Chubachi, vice chairman of Japan's electronics giant Sony, presents the prototype model of a 360-degree 3D display at the Digital Contents Expo in Tokyo on October 22, 2009. The display shows full color 3D images in a small cylinder and could be used on digital signage. Gadgets and inventions will be on display at this high-tech exhibition until October 25. Getty Images logo Getty Images 1 month ago

Ryoji Chubachi, vice chairman of Japan's electronics giant Sony, presents the prototype model of a 360-degree 3D display at the Digital Contents Expo in Tokyo on October 22, 2009. The display shows full color 3D images in a small cylinder and could be used on digital signage. Gadgets and inventions will be on display at this high-tech exhibition until October 25.