"Red Hydrogen One preview - phone with holographic display - CNET link" Wed May-23-18 09:11 PM by obsidianchrysalis
TL;DR - The Red Hydrogen One is a cellphone with a holographic, 3-D display. The One is made by the company, Red, who also makes high-res digital cameras. Apparently, the technology is the next 'big' thing in cellphone technology.