Flying Pixel Display

3D display made of flying pixel-copters in the works: "Two teams at the Massachusetts Institute of Technology are working on a unique 3D display dubbed Flyfire, in which a flock of tiny aircraft carrying multicoloured LEDs hover in front of the viewer to form an image. As pixels that can move through space, the free-flying LEDs could form a shape-shifting 3D display (see video). As well as the pixels displaying moving images like a normal screen, they could change their position to add real depth."