Active vs. passive vs. glasses-free 3D TVs
[Philip Lelyveld comment: a long time getting to the obvious conclusion that glasses-free aren't developed sufficiently for the consumer market yet.]
It has been almost three years since 3D TVs first appeared in the consumer market. Now, there are three predominant 3D display technologies used by the TV manufacturer. Panels based on active shutter 3D goggles are the first to arrive on the home 3D entertainment scene. This was quickly followed by their passive 3D glasses counterparts, as well as glasses-free versions which have only been recently debuted.
Conclusion
At this point in time, an active shutter or passive 3D TV is probably a more logical choice for most users. Aside from a higher price premium, most active shutter 3D TVs can deliver good picture quality in darker rooms. If you have a limited budget, nothing beats passive 3D displays with their equally strong 3D visuals, save for the visible artifacts at close viewing distances.
With better performance and affordability, glasses-free 3D panels will be a lot more appealing, but not for now.
See the full story here: http://asia.cnet.com/active-vs-passive-vs-glasses-free-3d-tvs-62219631.htm