This is the work of the University of Gronigen in the Netherlands to make a “Reality Touchscreen”.
I have no idea what this means, but it is about 10 meters and can accept 100 multiple touches at the same time. By the way, the screen is curved at 135 degrees for true obtuse watching.
In case you are wondering how these trippy effects are created, it uses six cameras and 16 infrared lights. When the user touches the screen, a small amount of infrared light is reflected back, and the cameras sense the position and translate it into movement on the surface.
It certainly looks like something I would like to have in my house as a home theater screen. It reminds me of the Barco NX4 3D Video Wall that we just finished reporting about.