You can build your own ultra large POV displays using colored SMD LEDs. A similar creation is shared by Eliot, a hackaday’s member in his post of a 2m persistence of vision display. The display is composed of 100 blue SMD LEDs to generate POV image. The LEDs are connected to an ATMega64 microcontroller via shift registers. The unit when rotated at the speed of 600rpm, a flicker free POV image is achieved.
Additionally, you can add the advanced features in the board like wireless control via IrDA and SD based storage.