Rear-Projection TV Turned into a Multi-touch Display

Continuing our multi-touch research, we’ve been working on turning an off-the-shelf rear projection TV into a multi-touch display. This screen has the best width-to-depth ratio of any multitouch system (67″ diagonal viewing area and only 16″ deep). This is also the first example of hacking a multi-touch system into an off-the-shelf television. The system we settled on uses very few additional components and could potentially be applied to any rear-projection TV.