How about a laser POV display instead?
Nykodemus 12:04, 3 June 2009 (CDT)
Saw the link above, looks like a safer, cheaper and easier option compared to using static of POV LED displays. Talked further to Nykodemus & fedaykin on the IRC channel. They both mentioned that a color POV laser display has been built commercially:
If we can combine R,G & B lasers and project them onto one mirror similar to this, and obtain the hardware cheaply, we might be able to have the safer, cheaper option.
--Spacefelix 16:39, 23 July 2009 (CDT)