3d Hdtv General Info

There has been plenty of rumors and reviews about 3d TVs and how it may take over the TV industry. Within the next nine years one market research firm projects the 3D HDTV market is going to grow nearly 4 times. This means that nearly all shows you watch... movies, sports etc on a TV will soon be in a 3D format.

There's a few tips you should realize before you buy a 3D TV. For example: Do you need a new blue-ray disc player to watch 3D movies? YES. Is 3D a lot more expensive? No not really. One of the most Frequently asked questions is can you watch normal 2D Television with a 3D Television? Yes 2D and 3D can be turned on and off at the user's own will.

3D TVs is pretty much stereo for your eyes. One right image and one left. In fact 3D video and pictures is sometimes done by using right and left lenses that are slightly off set. How much offset? Its as about as offset as a pair of human eyes. Its about 4 inches or 7 centimeters. This is called stereopsis. The brain thinks its looking at a 3d object because its seeing 2 different images, from 2 different angles. The same 2 viewing images as your eyes. It creates the illusion of depth. Right now TV companies can project those 2 pictures on to one screen at the same time without making them unclear and it cost to much to have two different televisions for each eye. This is how there able to trick your brain into seeing 3D images on the screen.

3D TVs currently falls into two different categories. 3D movies you watch with active shutter glasses and 3D TV you view with polarized glasses.

This is how active shutter functions. They are powered by batteries and send an emitter to via your television to your 3D glasses. The emitter sends radio or info-red signals to your glasses and tells each lens of the glasses to either close or open. Like a window shutter. This is possible because of quick flashing left and right images on the screen. This all happens over 100 times/second. This is why its nearly impossible to turn your LED TVs or a Plasma television into 3D. This refresh rate is also known as the HZ.

So now were all aware about active shutter glasses, but that's not the only way to see 3D. If you've ever been in the movie theatr and saw a 3D movie then chances are you were wearing polorized glasses, like shutter glasses. Most polirized lenses work because they show both your eyes slithly off set images. Your mind is creating the illusuion that your seeing 3D, Movie theatrs have two differnt projectors flashing both left and right images on the screen. It all works and syncs together because it lets your right eye to see only the right image and your left eye only to see the left image and remember polarized lens dont need to be battery powered or synchronized there passive.

By: Brandon Smitherston

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This 3D HDTV article is by Ron P.