https://www.theregister.co.uk/2018/11/08/samsung_reveals_flexible_thing_in_darkness_but_cant_say_what_its_for/

New products are traditionally developed in darkness – but rarely launched in darkness too. Samsung yesterday turned the auditorium lights way down before "revealing" its first Foldable Thing. This Foldable Thing was brandished in a Samsung executive's hand – some distance from spectators. And you couldn't get any nearer.

That wasn't the only unusual aspect of this event. Samsung's media team published an infographic about the idea of foldable screens, rather than images of the Foldable Thing itself.