With the recent fall in the prices of small and high resolution projectors, it has become increasingly popular to project images onto a screen. However, because viewers can see all of the images projected on a screen at a given time, the presenter is not able to present only a portion of the projected information. In other words, the viewers cannot look at a part of the projected information selectively: they must see it all, including that which they do not want to see. To overcome this limitation, we propose a presentation system using a multi-tiled screen. The screen is divided into 3 x 3 multiple rotatable panels and by rotating the surface of the projection, the presenter can select which information the viewers can see. We implemented a prototype system and confirmed that the presenter can conceal a part of the projected information from viewers who cannot see the projection surface of certain panels.
Naoya Isoyama, Tsutomu Terada, and Masahiko Tsukamoto:
Multi-tiles: a System for Information Presentation using Divided Rotatable Screens,
The 13th International Conference on Advances in Mobile Computing and Multimedia (MoMM '15), pp. 14–18 (Dec. 2015).