Light-field displays have moved beyond the realm of science fiction, with prototypes now existing in the real world. Light-field computation, however, is the barrier to deployment. The sheer number of pixels required to produce high-fidelity light-field content at a reasonable cost represents a daunting though not unsolvable problem.    

Information Display Magazine Article.

The link above will take you to an article written by CTO of FoVI3D, Thomas Burnett.