In 2004, a team led by Prof. Roel Vertegaal at Queen's University's Human Media Lab in Canada developed PaperWindows, the first prototype bendable paper computer and first Organic User Interface. Since full-colour, US Letter-sized displays were not available at the time, PaperWindows deployed a form of active projection mapping of computer windows on real paper documents that worked together as one computer through 3D tracking.
In 2004, a team led by Professor Roel Vertegaal at Queen's University's Human Media Lab in Canada created PaperWindows, the first bendable paper computer and the first Organic User Interface.  Because full-color, US Letter-sized displays were unavailable, PaperWindows used active projection mapping to project computer windows onto real paper documents that functioned as a single computer through 3D tracking.