The largest LED screen in the world was installed in Xicui entertainment complex in Beijing, close to where the 2008 Olympics are to take place.
This display is comprised of “2,292 color (RGB) LEDâ€™s light points comparable to a 24,000 sq. ft. (2.200 m2) monitor screen for dynamic content display”.
Created by the GreenPix project, this display uses the sun’s energy only. It collects power during the day to be used during the nightly showing, which are of different artists’ performances and videos.
It is set to turn on this month, as the Olympics are getting close.
A short video demonstration may be seen below, and their site has additional images and videos.