Tons of individuals have been talking about 3D lately. With new 3D movies out like Avatar, there is a renewed demand for 3D TV′s in the living room. In this editorial we’ll be covering the commonly ask questions and the FAQ’s of 3D Television!
There has been plenty of rumors and reviews about 3d TVs and how it may take over the television industry. Within the next 9 yrs one market research company predicts the 3D HDTV market is going to grow nearly four times. This means that nearly all shows you watch… sports, movies, etc on a Television will soon be in a 3D format.
Before you get a 3D HDTV you should know more about it. For example: Do you need a new blue-ray disc player to view 3D movies? YES. Is 3D more expensive? Nope not really. One of the most FAQ’s is can you watch normal 2D Television with a 3D Television? Yes you can switch back and forth from 2D to 3D.
3D TVs is pretty much stereo for your eyes. One left image one right. In fact 3D pictures and video is sometimes done by using left and right lenses that are slightly off set. How offset? Its as about as offset as a pair of human eyes. Its about 4 inches or 7 centimeters. Its called stereopsis. The brain thinks its looking at a 3d object because its seeing 2 different images, from 2 different prospective. The same 2 viewing angles as the eyes. This fools your mind into seeing depth. Currently most TV companies have found a way to project 2 different images on only one screen without making it blurred and it cost to much to have 2 different televisions. So they came up with two main ways to fool your brain into seeing focused 3D pictures on 1 screen.
3D TVs Falls into 2 separate categories. 3D movies you can view with polarized glasses and 3D television you can view with shutter glasses.
Here’s how active shutter works. 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 open or close. Like a window shutter. This happens in-sync with fast flashing right or left images on the screen. This all happens over 100 times/second. Thats why its very difficult if not impossible to get plasma television or LED TVs 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 seen Alice in Wonderland or Avatar in the movie theater you were using polarized glasses, like shutter glasses. Most polarized lenses work because they show both your eyes slightly off set images. Your brain is creating the false image that your viewing 3D, but instead of flashing right and left pictures one at a time on the screen. Movie theaters project both left and right pictures at the same time with two different projectors. Its not fuzzy because the left lens only lets your left eye see only the left the left picture and the right lens only lets your eye see the right picture and remember polarized lens don’t need to be battery powered or synchronized there passive.
Right now there is not a lot of 3D content available, but 3D TV′s also give you an excellent picture with everything you watch even non 3D stuff too. So if you’re going to buy tv. You may want to consider a new 3D TV. You’ll get a great picture now and will be ready in the near future when more 3D content is available.
3D movies are shot in a different way. They use two different cameras, one for each eye. Our brain combines these two perspectives and that creates the 3D effect. What’s tricky is making sure you have the right perspective for each eye. Different TV manufactures are using different methods of achieving 3D. Most 3D TV′s use special screens that can display 2 different vareities of an image at the same time. This is able to work by the screens image switching back and forth very rapidly. The right eye and the left eye are shown 2 different images. If you’re watching 3D TV without the special glasses then the image is going to look very blurry. If you have seen a 3D movie in the movie theater your probably already familar with the 3D glasses. However the 3D glasses for televisions are completely different. They are more complex. These are wireless, battery powered, liquid crystal, shutter glasses. It sounds complicated but its really not. 3D TV′s emmit out certain signals to balance the timing of the glasses. So either the left or the right image that darkens and blacks out the image in sync with what’s on the TV screen. You wont notice any flashing back and forth, because this all happens 240 times a second.
Beleive or not are minds are wired for 3D, that’s how the world viewsus everyday. Our brains translate what’s on a 3D TV screen in the same fashion as everyday life. One generally asked question is… Does the glasses create a flash? No. The images flash over hundred times a second. So our minds just fill in the blanks automatically.
If you want a 3D TV at home here’s what you’ll need. First you’ll need a TV that’s designed for 3D kind of of like the Samsung UN55C7000. After that there are 2 options. There’s 3D ready TV′s. Those have the built in admitter that sends out the beam to control the glasses or there are 3D compatible TV′s. With that, you’ll need to get a separate admitter box. You’ll want 3D glasses for everyone in the household that will be watching the 3D TV. You also want to be positive that the 3D glasses are able to be used with your 3D TV. The best and for sure way to get it right is to buy the same company brand of 3D glasses as the 3D TV itself. Also you will need a 3D signal. However most 3D TV′s will be able to convert 2D video to 3D, but for top performance 3D at its best. You would want to see the images/video already converted to 3D. You will also need HDMI cables.
Their our 2 different light sources inside the movie-theater, two various projectors that put a polarizer on the front of each projector. 1 for the right eye and 1 for the left eye. So as long as you have a pair of eye-wear which have the same polarity as the right and the left, then were ensured that the left image goes to the left eye and the right image goes to the right eye.
When you buy TV, it only has a simply single light source. So we have to produce a left image and a right image in a different way. This is done by syncing it. The television produces a left image and a right image really fast. In order for it to synchronize appropriately, you will need to wear a pair of 3D glasses that move in-sync to the TV′s flashing different images. So the television will tell the eye-wear… I′m showing you the right image. This will then make the lens on the 3D glasses more transparent, the right lens will be going dark. This makes the left image only to be viewed by the left eye. The reason why you may not see the flashing is because its done really fast (usually over 100x a second).
When it comes to LCD HDTV or plasma television there is nothing wrong with none of them in respects to 3D TVS. The major difference between the two is how they create light.
For LCD HDTV they have to update their image very quickly. The problem with a LCD is because LCD HDTV uses technology that works as little gates that open and close to allow the back-light through. It may take sometime for those tiny LCD molecules to change their state, This may cause a problem when the right eye sees part of the left image and the left eye sees part of the right image.
Now, as for plasma television. It creates frame sequential images. A left then a right. Plasma television starts when a tiny molecule creates its image, then erases it and then produces the next one. So when you produce a right, left, right, left image, Theirs a tiny chance of screwing it up, because it does 1 at a time.
So is 3D TV right for you? Obviously its worth looking into. If you liked 3D movies in the Imax theater, then getting a 3D TV in the living room would be the right thing to do.
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