Voila - one pair of 3D glasses works with two different branded 3D TVs! Or does it?
#BEST 3D GLASSES FOR VIZIO TV TV#
But if you go into the menu of a Samsung 3D TV and hit the "3D Picture Correction" button (or "Left/Right Swap" on a Panasonic 3D TV), the TV will shift the phase of its left/right broadcast, thereby locking to the same 3D sequence as the first TV. When this happens, turning the glasses upside down will allow you to see a proper 3D image on the second TV. When it's out of synch, the second TV displays a right eye image on screen when the first TV displays a left eye image (and vice versa). You basically have a 50/50 chance as to whether the second TV will be in synch or out of synch with the first. When you fire up two different 3D TVs, one TV may start up with the synch signal for left eye first, locking the same-branded glasses into a left eye/right eye pattern, but the second TV may begin transmitting the left eye/right eye image later - exactly 1/120th of a second later, to be precise - which causes the second TV to be "out of phase" from the first. People are going when they should be coming (and yes, I know how that sounds). When the right eye gets left eye information (and vice versa), you get an inverted 3D image, which looks very strange indeed. This is how your brain sees the illusion of 3D, by putting the two images back together to form one. To get the 3D effect, your left eye needs to get that left eye information while your right eye needs the right eye information. In the US market, 3D TVs' synchronication signal (the signal that tells the left and right shutters on the glasses when to open and close) is locked at 120 Hz - 60 blinks of the left eye alternated with 60 blinks of the right eye. The reason that this little trick works (sometimes) is because the Panasonic and Samsung TVs in the test environment were 180 degrees out of synch from each other. But even so, this doesn't make them compatible. But the truth is that Samsung glasses will "work" with Panasonic 3D TVs even right side up, if you understand how the technology works and know which settings on the 3D TV are important. It was reported that for Samsung 3D glasses to work with Panasonic 3D TVs (and vice versa) that all you need to do is flip your 3D glasses upside down. Yes, the picture of a guy with 3D glasses on upside down was fairly amusing, but what made me laugh was the explanation given as to why this works and the implication that a) the glasses have to be upside down for compatibility and b) that it would work in the real world (neither of which is true, but I'll get to that). We read the reports yesterday in Home Cinema Choice (repeated by Gizmodo and elsewhere) about the miracle of 3D glasses interoperability (e.g., using Samsung 3D glasses to watch a Panasonic 3D TV) and had to laugh. Check out our updated article on 3D glasses compatility. Note: Things have changed since this article was written in 2010.
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