3D TV Frequently Asked Questions (FAQ’s)
3D TELEVISION
3D Television technology is still progressing however this information should be useful
in answering some of your questions relating to 3D. Other information can be found on other pages
within this site as well as in links from this site to other 3D related sites
What is 3D TELEVISION?
Three-dimensional television -- 3D TV -- lets home viewers experience TV programs, movies, games, and other
video content in stereoscopic (three-dimensional) effect. It gives the illusion of a third dimension -- depth
-- to current Television display technology, which is limited to only two dimensions: height and
width.
How Does 3D TELEVISION Technology Work?
To understand how 3D technology works, it helps to know how human vision works. Our eyes are about seven
centimetres apart, which means each eye sees a slightly different angle of the same scene. The brain takes
images from both eyes, merges them and uses the difference between the images to calculate distance, creating a
sense of depth. Interestingly, 3D content designed for children takes into account that their eyes are closer
together (approximately five centimetres apart).
Getting the 3D effect at home involves tricking the brain into doing similar with the images from a television.
A 3D Television displays two separate images of the same scene simultaneously, one intended for each eye. The
two full-size images take up the entire screen and appear mixed with one another when viewed without 3D
glasses. When they combine in the viewer's mind, and with the aid of 3D glasses, the two images are perceived
as a single 3D image.
Can Everyone See 3D?
Approximately 7% of the population suffers from stereo blindness and cannot perceive the dimension of depth in
3D video content. These people can view 3D material with no problem, as long as they wear 3D glasses; it simply
appears as 2D to them.
Does 3D TELEVISION affect Epilepsy sufferers?
Read this very informative article “how will 3D viewing affect Epilepsy
sufferers” (click this link) or go to the articles tab on the home
page.
How Many Types Of 3D Glasses are available?
There are three main 3D technologies, the following is a brief explanation of each type – for more details
please click this link 3D Glasses or
go to home page and click on the 3D Glasses tab - :
Anaglyph:
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The original form of 3D where you need to wear the cardboard glasses with red and blue
lenses.
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Forces each eye to view slightly different images by filtering colour; the brain overlaps them for the 3D
effect. Not ideal for retaining the integrity of colours.
Stereoscopic Passive Polarised:
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For environments where the screen is larger than the viewers' field of vision (e.g.
IMAX).
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Suffers when you are either not front-on to the screen or tilt your head because the passive polarised
glasses split the image, which is then lost.
Stereoscopic Active:
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Delivers full High Definition 1080p 3D imagery, ideally suited to the home
environment.
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Sharper images and better colour reproduction because a home screen is much smaller than a cinema and
occupies a lower percentage of the viewers' field of vision.
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Active glasses use shutter technology for each eye that works together with the display
panel.
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Some glasses also have audio control incorporated
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