Unfortunately, it’s not about the existing device, but about the concept, which is a figment of designer Mac Funamizu’s fantasy . Looking, as usual, for a dozen or two years ahead, this designer presented his version of the phone of the future.
The main feature of Trou Hologram Mobile Phone is the lack of a familiar screen. Instead, it's just a hole in the case. On its perimeter from the inside it is supposedly possible to place mini-projectors that will create a hologram.
I do not know about the timing of the possible implementation of such an idea, but the idea itself, in my opinion, is interesting. ')
via yankodesign