the 4k tv is using a form of the pulfich effect to create the glasses free 3D, the only thing Dolby has in here is a processing code, it has nothing to do with the cinema Dolby 3D. it really is all in the TV and not some magic Dolby is doing. not trying to sounds negative at all here just making it clear. in another forum its been confusing as to what this tech is and how it works.
http://en.wikipedia.org/wiki/3d_filmhere is a good description of how some of these work. scroll down a little to see the glasses free section