I just picked this up from Foscarini’s website: As part of their “Inside” installation for Milan Design Week back in April, Foscarini created a tunnel with digital projections on the walls and ceiling. Check out the videos on their site.
It is difficult to pick out the actual projector locations from the images and video on the site, but I did notice in the video that the tunnel was visible from both the inside and the outside. If you imagine a future with transparent OLED screens, this is how architectural spaces may look. In the image below you can see the partial area of transparency:
