Into the future with 3D...
What is 3D TV?
Three-dimensional television -- 3D TV -- lets home viewers experience TV programs, movies, games, and other content in stereoscopic (three-dimensional) effect. It gives the illusion of a third dimension -- depth -- to current TV display, which is limited to only two dimensions: height and width.
How Does 3D TV Technology Work?
To understand 3D technology, lets start with 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.
Getting the 3D effect at home involves tricking the brain into doing similar with the images from the television. A 3D TV 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 read 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.
How Many Types Of 3D Exist?
There are three main 3D technologies:
- The original form of 3D where you need to wear the cardboard glasses with red and blue lenses.
Stereoscopic Passive Polarised:
- For environments where the screen is larger than the viewers' field of vision (e.g. IMAX).
- Delivers full High Definition 1080p 3D imagery, ideally suited to the home environment.
- 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.
- Active glasses use shutter technology for each eye that works together with the display panel.
Do I Need A New TV?
Yes. Current TV's are not able to be upgraded to include new 3D technology.
What Options Should I Look For When Choosing A 3D TV?
3D TVs are available in Plasma, LCD and LED LCD display types, ranging in sizes from 40-inch (101cm) through to 63-inch (159cm).
- All new 3D TVs offer full High Definition 1080p and a minimum of 100Hz refresh rate.
- The better the refresh rate, the better the 3D experience.
- For viewing fast-moving action, like sport or movies, on LCD or LED LCD, look at 200Hz.
- For viewing fast-moving action, like sport or movies, on plasma, look at 200Hz. 600Hz options.
Do I Need To Wear 3D Glasses?
Most manufacturers are using active shutter glasses, and you need to wear them to see the 3D effect. If you don't, images will appear distorted, and, generally, unwatchable.
People who wear normal prescription lenses can experience the full 3D effect -- with little or no discomfort -- by wearing the 3D glasses too, which are designed to fit over an existing pair of glasses.
Currently, there's no technology that lets a single TV display both 2D and 3D content simultaneously without glasses.
What Content Can I Watch In 3D?
Sport is expected to be one of the most sought-after forms of 3D content.
Most free-to-air broadcasters and Pay TV operators are currently working on how to deliver 3D television content. The other content available will be movies and games.
Do I Need To Watch Everything On TV In 3D?
All 3D TVs can run in 2D mode and still deliver an exceptional 2D picture quality.
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