Japan's NTT DOCOMO demonstrates a spherical drone display, an unmanned aerial vehicle that displays LED images on an omnidirectional spherical screen while in flight, at the company's research laboratories in Yokosuka, Kanagawa
Flying, spherical displays are coming to a halftime show near you | Engadget
World's First Spherical Drone Display from Japan – UAS VISION
PDF] Spherical Drone Display Research Laboratories | Semantic Scholar