How Does 3D TV Work
So how does 3D TV work? Before answering this question it is important to note that 3D for televisions works differently than movie theaters, the explanation below is the approach that TV manufactures have standardized on.
The way 3D works for television is that the TV screen refreshes the picture at a rate faster than the eye can detect. This is currently how TVs work so nothing new yet. The new part is with 3D TVs, the TV alternates images as it refreshes. One image for the right eye, one for the left eye, one for the right, one for the left, etc. These images are slightly offset tricking the brain into thinking it is viewing a 3D image. Now the key part, if you were to watch this without 3D glasses the picture would appear fuzzy because you would see both images. The active shutter glasses synchronize with the TV and block out images for each eye. So when the image for the right eye is displayed the glasses block the left eye. And when the image for the left eye is displayed the glasses block the image for the right eye. And on and on. This happens really fast and tricks the brain into thinking it is seeing a 3D image. It works very well compared to some of the grainy 3D movies you may have seen in movie theaters a few years ago.
Of course for the TV to show 3D images it needs the 3D content to display in the first place and that is where the 3D Blu Ray or set top boxes come into the picture. Another option is the Sony Playstation which can also show 3D content. That is the answer to how does 3D TV work. Simple isn't it? If you are curious as to the other approaches for displaying 3D content, there are currently four different approaches. For additional information on how 3D works in movies theaters and the differences between the various approaches, see what is 3D TV.
3D TV Without Glasses
Can I watch 3D TV without glasses? At this time not on a TV but there are some options available for other devices and TV is in the works. See 3D TV without glasses for more details.
Disadvantages of 3D TV
What are the disadvantages of 3D TV? There are several things you may want to be aware of. One is that the glasses are not exactly cheap and they do not necessarily work across brands of TVs. Meaning you need glasses for whatever TV brand you are watching and you need one pair for everyone who wants to watch. This can be expensive. Other disadvantages are that some people experience headaches or complain of feeling sea sick after watching 3D TV and a small percentage of people are unable to see 3D at all.
How Does 3D TV Work Requirements for 3D TV
There are several things you will need to watch 3D TV. The obvious ones are a 3D TV and 3D glasses. The less obvious are a 3D capable Blu-Ray player or set top box and a version 1.4 HDMI cable. Another option for the player is a Sony Playstation 3 which supports 3D Blu Ray once a patch is applied. See requirements for 3D TV to learn what will be required to set up 3D TV in your home.
3D TV Converter
Is there a 2D to 3D TV converter to convert my existing TV to 3D? There are products that claim to do this, however the picture is not the same. See 3D TV converter for additional details.