Flat Panel TVs have been around for quite a while, but consumers can still be baffled by the choices offered by the various different types of technologies. They may all look pretty similar, but they're very different ways of providing the image. Knowing how they work can help you make the right choice of TV to suit you and your household.
LCD TVs use Liquid Crystal Display technology. This is a type of crystal like glass which is composed of two layers to transmit or block light, creating images. LCD screens, unlike other types, don't light up, requiring backlighting for their images to be visible. They also do not emit radiation for that reason. LCD TVs run cooler than other types, and use less power.
The confusingly named LED/LCD TVs are in fact a form of LCD TV, using LED lights for backlighting rather than fluorescent lighting. These TVs are to all intents LCD TVs.
Plasma TVs operate very much like a fluorescent lights. To produce images they use a gas mixture (usually xenon/neon) which is electrically charged to produce color pixels. Each pixel has three possible colors, red green or blue. Plasma TVs were the first flat screen TVs on the market, replacing the old cathode ray TVs and eliminating the need for the picture tube.
LCD TVs use Liquid Crystal Display technology. This is a type of crystal like glass which is composed of two layers to transmit or block light, creating images. LCD screens, unlike other types, don't light up, requiring backlighting for their images to be visible. They also do not emit radiation for that reason. LCD TVs run cooler than other types, and use less power.
The confusingly named LED/LCD TVs are in fact a form of LCD TV, using LED lights for backlighting rather than fluorescent lighting. These TVs are to all intents LCD TVs.
Plasma TVs operate very much like a fluorescent lights. To produce images they use a gas mixture (usually xenon/neon) which is electrically charged to produce color pixels. Each pixel has three possible colors, red green or blue. Plasma TVs were the first flat screen TVs on the market, replacing the old cathode ray TVs and eliminating the need for the picture tube.
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