A television that conveys depth perception to the viewer is known as a 3D TV. There are many techniques that can be employed to bring about this effect such as stereoscopic display, 2D plus depth and multi-view display. Most modern 3DTV sets require the viewer to wear effects glasses but there are also a few that do not need this. Sales of 3D television sets have been on the rise with shipments reaching 41.45 million units in 2012. Many expect this demand to skyrocket in the next couple of years.
How do 3D TVs work?
The main premise behind 3D viewing is to display offset images and then filter them separately to the left and right eye. There are two ways of doing this - having the viewer wear glasses to offset the images or splitting the image from the light source itself. In the second case, there will be no need to wear glasses.
Anaglyph 3D is the main method used to achieve the 3D viewing experience. It involves the use of altering each eye's image through the use of glasses with different color filters. Red for the left channel and Cyan for the right channel is the most popular method. The image being viewed will have two differently colored parts but when viewed through a 3D filter, they will combine to give a single image with the illusion of depth. There are many other display technologies that are used such as Active Shutter 3D system, Polarized 3D system and Head Mounted Display.
There are also 3D displays which do not need the use of special filters and can be viewed normally. These are known as autostereoscopic displays.
The production of 3D footage also employs techniques different from the usual filming technology. The most common method for capturing 3D video is stereoscopy. In this method, cameras are mounted side by side at a distance similar to the distance between a person's pupils. The footage is captured separately by these cameras. Then both the videos are worked on to add the effects that make it suitable for 3D viewing. When the viewer watches it, both the videos are shown at the same time but are seen as a single entity due to the 3D glasses.
Multi-view capture is also another effective method to shoot 3D footage. It involves the use of as many different cameras to capture the 3D scene.
Live broadcasts such sports telecast are also made but these are far more difficult to produce than the usual 2D videos. High technical standards need to be maintained as even small mismatch in color or position can destroy the 3D effect. Also graphical elements like scoreboards or timers should be placed at a careful depth so as not to jar the viewer.
What is 3D TVs advantages?
3D television viewing is set to change the entertainment medium completely. With this innovative technology, movies and games will come to life in a way that is just not possible in 2D viewing. These TV sets are also highly advances with features such as ethernet, Wi-Fi, USB ports and recorders. If you are not satisfied with the 3D experience, you can always watch it in 2D on the same set and even this will be far better than usual. Currently Samsung, Panasonic, LG and Sony are the brands that market this technology but other companies and soon going to start competing in this segment. Once the competition increases, prices are also bound to come down.
What is 3D TVs disadvantages?
The biggest problem with 3D TV viewing is the cumbersome use of the glasses. Though technology to view it without the use of glasses is present, it will be sometime before it can make its way to the living room. When there are a number of people watching TV, it will be necessary to purchase a separate glass for everyone. Another problem is that channels which broadcast in 3D are very few. Of course as the technology becomes more widely used, this is bound to change. Blu Ray 3D discs are easily available and you can use them to watch your favorite movies in 3D.
Purchasing a 3D TV is a great choice if you want to enjoy an exhilarating viewing experience. Options right now are a bit limited. But if you are an avid gamer or fan of 3D viewing, then you will definitely enjoy it. Hopefully this article would have answered some your questions about what exactly is 3D TV and its various types.
Find the latest 3D televisions in display technologies such as plasma, LED, and LCD in our wide-ranging selection from manufacturers like Samsung, Panasonic, Sony, Vizio, Sharp, Toshiba, and more. Click here .!!
0 Response to "The Pros and Cons of 3D TV"
Post a Comment