Dutch company Holoconnects showed off its Holobox at CES. The selling point is it can bring realistic holograms into conference venues, hotels and more. The Holobox has an 86-inch, transparent 4K LCD screen for a life-size and realistic-looking holographic projection. Because of the lighting behind the screen, it creates the illusion of a 3D projection or hologram.

This works a bit better for multiple viewers compared to head tracking techniques that only work for one viewer.

Takashi Yoshinaga created a version that uses HoloLens2 and allows you to pull the person out of the holobox.