Here is a really cool item!!! These are new high resolution full color led display modules that were manufactured for the gaming industry to be used in slot machines and other similar gadgets. These displays are comprised of a 24 x 72 matrix of tri-color leds…that’s 1728 3.6mm rbg leds. The leds are spaced 5mm on center…as far as led displays go, that’s pretty tight.
[Ebay] 24X72 matrix RBG Led display - [Link]