3-D Television

3D Television is becoming increasingly popular day by day. Thanks to new 3D films, major television manufacturers are begining to develop televisions which display channels in 3D. Some of the TV's that are going to be on sale, require glasses, while other more advanced systems, don't require glasses. Panasonic created 3D glasses, called the Panasonic Active-Shutter Glasses. These glasses work by rapidly
blocking one eye at a time so that each eye sees only the frame meant for it. Each one of our eyes have different perspectives of the same scene we are looking at. The brain takes both images, and fuses them together, helping us to have a sense of depth. Getting the 3-D effect at home involves tricking the brain into doing something similar, however with the images you get from a TV set. TV makers have to figure out a way to precisely show a set of slightly differnt images to each of your eyes. Many times, as used in movie theaters, people have to wear Glasses which enhance the picture, resulting in a 3 dimensional image. However, LG's 3D TV does not require glasses. This TV uses lenticules, a cylindrical plastic that goes on the LCD screen, which magnify and enlarge the display on the screen. When the viewers are sitting in the right angle, the brain combines the two views from each of your eyes, and creates the perception of depth, the 3D image. This technology is not essential, however, it is essential for entertainment. Films such as Avatar, shown in 3D, made more money than movies shown in regular 2D. You can expect to see projects in stores in 2010.



http://www.wired.com/gadgetlab/2009/10/3d-tv-explainer/