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An LCD TV is a flat panel television that utilizes the same basic Liquid Crystal Display technology that has been used for some time in cell phones, camcorder viewfinders, and computer monitors.
Basically, LCD panels are made of two layers of a glass-like material, which are polarized, and are "glued" together. One of the layers is coated with a special polymer that holds the individual liquid crystals. Electric current is then passed through individual crystals, which allow the crystals to pass or block light to create images. LCD crystals do not produce their own light, so an external light source, such as florescent bulb is needed for the image created by the LCD to become visible to the viewer. Unlike standard CRT and Plasma televisions, there are no phosphors that light up, and, thus LCD panels are thin and require less power to operate.
Because of the nature of LCD technology, there is no radiation emitted from the screen itself, unlike traditional televisions. Also, without the need for a picture tube, LCD televisions can be made very thin, thus allowing them to hang on a wall or be placed on small stand on top of a table, desk, dresser, or cabinet very easily.
Combining the above technology with the features of a traditional television, such as, AV input/output connectivity, side or bottom mounted loudspeakers, TV tuner, and traditional television adjustment controls, bring to life a concept that is becoming a popular option for TV and home theater viewing.
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