Although the technology only arrived in the early 2010s, it nevertheless has already been incorporated on numerous LED LCD and plasma television models by various manufacturers. There are a multitude of companies producing 3D TVs, with each company producing multiple models. It seems clear that the future of 3D will be long-lasting and fast-paced. 3D TVs deliver three-dimensional video in one of two ways: Active 3D and Passive 3D. There are differences in the technology, In general, LG and Vizio largely manufacture passive 3D TVs, while Sony, Panasonic, and Samsung are primarily focused on manufacturing active ones. There is, of course, some crossover, with many companies producing both passive 3D and active 3D TVs. The Technological Difference Between Active 3D and Passive 3D It’s important to have some understanding of the technology in question. Technically speaking, LED LCD and plasma TVs enhanced with 3D don’t really produce 3D at all; rather, they "trick" the viewer’s brain into thinking that he or she is witnessing 3D. In actuality, 3D works by making use of the concept of stereoscopy: the technique for creating apparent 3D by displaying video slightly differently to each of the viewer’s eyes. When it comes to the finer points of the technological differences, the following can be said: Active 3D glasses use active liquid crystal shutter glasses that close and open their lenses at a very fast rate. This rapid active-shutter speed gives the user the illusion of 3D. Passive 3D glasses have no moving parts and instead work by incorporating different polarized lenses in the left and right side of the glasses. Passive 3D glasses are the type of glasses found in most 3D movie showings in the U.S. For those who aren't fans of the glasses, glasses-free 3D exists in the market but the technology is still evolving. For now, embracing the glasses in order to enjoy 3D at home is the way to go.
D**4
Wish mine was a passive because this is a great deal fro five pair of glasses
OK, just got an email from someone that informed me that I must have an active TV instead of a passive TV and that is why these do not work. Wish mine was a passive because this is a great deal fro five pair of glasses. But I can always take them to the store and watch some 3D there on a passive one.
M**.
Cant go wrong with this deal.
My kids enjoy watching 3d movies.
T**N
Five Stars
good valu and beats $49 for a single pair of the active glasses..
A**O
They did not work when I tried to see 3D ...
They did not work when I tried to see 3D in my computer. I am not sure what was the problem.
C**L
One Star
Did not work on my Samsung 4k tv.
B**L
Five Stars
Worked perfectly!
Z**C
Five Stars
Good
A**R
Four Stars
it works very well
Trustpilot
2 months ago
1 day ago