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Of course, the most basic sense, a 3D TV is a television that is able to provide photos and video in three dimensions. These screens do this by using new technologies to offer different images for each eye of the beholder. When each eye sees the same scene, but with a slightly different angle (as we do in real life), then the brain puts them together and is able to interpret the information contained in the third dimension.
While terms like LCD TV and Plasma refers to a very specific visualization technology, 3D TV, the term does not refer to any type of 3D display technology. In fact, we will have a plasma, LCD and DLP televisions 3D released in 2010. This can be confusing in itself. Many manufacturers rely on different display technologies to provide the best possible experience in 3D.
As for the active shutter glasses that are synchronized with the television screen and 3D passive techniques involving a TV that emits polarized light. Some manufacturers are also working on a 3D TV without glasses, although the performance is very poor at this point. The hope is that over time they will be able to develop and improve technology 3D without glasses, which will replace the current technology based on passive or active 3D glasses.
How 3D TV work?
The answer to this question is unfortunately no quick and easy. As mentioned previously, the televisions can use 3D visualization technologies are very different for the 3D effect. Finally, these techniques provide 3D graphics using technology innovations to offer a different image for each eye of the beholder.
If you are interested in the technology behind the 3D display, then I suggest you read our guides on how an in-depth 3D television, and our comparison of active and passive 3D television technology. Briefly review these technologies and also the list of advantages and disadvantages to having a better understanding of what to look for and what to be careful when you buy the new 3D TV. We should remember that at present all 3D TV technologies that are marketed for some form of 3D glasses for this purpose.However, these aren’t very obtrusive and the majority of people are quick to forget that they are wearing 3d glasses when they are immersed in a 3D environment.
Anaglyph technology
The old 3D that we are familiar. It is based on the use of shades of colored glass with different views of each piece. The images for the left and right eye are displayed simultaneously on the screen and are prone to another. In addition, the image is displayed for each color of the eyes that can not pass through the windows of the other eye. Therefore, each eye receives a unique image and are able to perceive in 3D.
However, this technology is full of many issues such as color fidelity terrible (because of the color film) and a very disappointing experience overall 3D. Fortunately, none of the big names are trying to sell the old technology obsolete and for us consumers, but if you see any technology 3D anaglyph sports television, be sure to keep a safe distance, like nothing remotely good can come out of it.
Active Shutter Glasses
Active glasses containing liquid crystals and polarizing filters that help to transform the dark glass, when a small voltage is applied. This voltage is applied on and off at a rapid pace (at least 120 times per second - 120 Hz) so that each eye alternates between being black or being transparent and allowing the television image to pass through the eye the viewer.
The glasses are synchronized with the TV in 3D so that when the left eye shows only part of the left eye is transparent, and when the right eye is displayed on screens in 3D, the left eye and right eye becomes blind is made to be transparent.
Passive Polarized 3D TVs
If you have recently seen a 3D movie at the cinema then you've probably seen a passive polarized 3D display. These screens work, which shows two images on the screen at once (although they can also be viewed in sequential order), but with each image with a different bias. If you want to know more about what is polarized and polarized 3D visualization of how these work, feel free to read more detail in 3D technology.
What is important to keep in mind is that in the case of "passive" displays, 3D glasses are glasses containing a single polarizing filter for each eye. Because of the difference in polarization filters for each eye, and then, the difference of polarization of the two images displayed on the 3D display, each eye receives only a picture you want for it, which can experience high-quality 3D.
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