Fog screen.

In the field of display devices CRT, raster, LCD, plasma were on the list of improvements. To add researches have found a new type of screen called Fog screen. The device has two major components, a laminar airflow, and a thin sheet of fog that is injected into the laminar. Here fog is forms the actual viewing surface and it works by reflecting light projected on the fog by a projector to the observers. It is possible to control the transparency and images can be projected from either front or rear. Interestingly, the screen is unbreakable and can be used to create virtual environments around observers.