In LCD TV there are sheets of polarized transparent material, one with a special polymer coating that holds liquid crystals, are adhered together. Electric current is passed through individual crystals, which interpret the information from the broadcast signal to allow or disallow light through them to create an image. The crystals themselves do not produce light, so the technology is "non-emissive" and therefore does not give off radiation like an older television does. Fluorescent tubes housed behind the transparent material illuminate the image. They require less power to operate than plasma televisions
Plasma is a flat and lightweight surface covered with millions of tiny glass bubbles. Each bubble contains a gas-like substance, the plasma, and has a phosphor coating. Think of the bubbles as the pixels. Each pixel-bubble as having three sub-pixels - one red, one green, one blue. When it is time to display an image signal (RGB or video), a digitally controlled electric current flows through the flat screen, causing the plasma inside designated bubbles to give off ultraviolet rays. This light in turn causes the phosphor coatings to glow the appropriate color. Millions of RGB bubbles glow and dim to make a rich, vivid image on plasma TV.
2007-02-23 15:34:30
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answer #1
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answered by midadala 3
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Forget about buying a new grand size tv.., soon enough your computer will be the media center of your home..From what I know plasm and LCD is kind of liek the beta and VHS war.. and then the CD won out anyway.. Lots of wasted money on cheap, useless plastic electronics that are worthless in a matter of a few short years or a few short months.. Take a pass on buying a new boob tube.
2007-02-23 23:18:06
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answer #2
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answered by Kim B 3
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These articles are good:
http://en.wikipedia.org/wiki/Lcd_display
http://en.wikipedia.org/wiki/Plasma_display
2007-02-24 02:57:52
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answer #3
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answered by gp4rts 7
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