A spherical drone designed to deliver advertising messages, event information and the like is one of the latest developments from Japanese mobile operator DOCOMO, INC. The company's pilotless aerial vehicle displays LED images on an omnidirectional screen while in flight and can be operated virtually anywhere—including venues such as concert halls and arenas.
Creating a device such as this previously had proved challenging due to issues like display weight and interference with the drone's propellers. DOCOMO's solution used a largely hollow, lightweight display that allows air to flow through it, yet still appears to be solid due to the afterimage created by rapidly spinning LEDs.
DOCOMO is exploring potential entertainment and messaging solutions for event venues and aims to commercialize the device in the fiscal year ending March 2019.