This is the result of my "Maturitätsarbeit" [= Gymnasium Final Thesis]. It is a 2D LED arrangement controlled by a Teensy 3.1 that can rotate at 60Hz [or more]. Through precise control of the LEDs, the 2D LED-Array can draw an image into the third dimension [It's in principle the same as regular multiplexing, only from 2D to 3D, instead of 1D to 2D].
More info, links, source code on https://github.com/mbjd/_3DPOV
Paper [in german]: http://tiny.cc/3DPOV