Will 3D without glasses ever be anything more than a headache?
At CES, both Samsung and a company called TCL were showing off TVs that didn’t need glasses for the 3D to work. As you might expect, this is not a pleasant experience. Firstly, you have to stand in exactly the correct place to get a good effect, and secondly, it feels as though your eyes are trying to get into your brain and punch a hole in your occipital lobe.
Glasses-free 3D works by using a physical layer that separates what your left and right eye sees. It does this using a long, thin lens that runs over the surface of the TV. This process is identical to those 3D cards you move to generate an image that either moves, or changes. Producing video that works on these TVs would be a challenge — if the picture isn’t properly aligned with the lenses, the process won’t work.
Read more at; http://crave.cnet.co.uk/televisions/0,39029474,49304707,00.htm
