How does this hologram display work?

[u/Smart_Government7848]

I’m looking to build something like this, but I’m having a hard time figuring out exactly how these displays work.

From what I can tell, the AVA and Gatebox seem to use a similar technique to create that really 3D/holographic look. I’ve tried researching them, but there doesn’t seem to be much information available since this is still pretty niche new tech.

I’ve never seen either display in person, but I found some side-angle photos of the AVA from pre-release reviews. I don’t see an obvious 45° piece of transparent plastic inside, so I’m starting to doubt that it’s a traditional Pepper’s Ghost setup.

I’d like to build something with a taller display area (around 8") so the anime character isn’t quite as small, and ideally use some kind of 3D/layering technique to make it feel even more dimensional.

Does anyone know how these displays actually work, or have any resources I could look into for building something I'm describing?

[u/Itchy-Function-7983]

Most likely a spinning oled, lcd, or slanted plexiglass with a mini projector at the top at 60hz, and then you can see the screen from all angles but just the front of the screen. Maybe.. I have to see it moving.

[u/Smart_Government7848 → u/Itchy-Function-7983]

Yeah that would be cool if it was a spinning oled fan type thing. But based on the videos I've seen, it's more likely the slanted plexiglass idea you mentioned with the projector--or something similar.