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Plasma
How the Technology Works
The basic idea of a plasma display is to illuminate tiny, colored fluorescent lights to form an image. Each pixel is made up of three fluorescent lights -- a red light, a green light and a blue light. Just like a CRT television, the plasma display varies the intensities of the different lights to produce a full range of colors.
The central element in a fluorescent light is a plasma, a gas made up of free-flowing ions and electrons. Under normal conditions, a gas is mainly made up of uncharged particles. That is, the individual gas atoms include equal numbers of protons and electrons. The negatively charged electrons perfectly balance the positively charged protons, so the atom has a net charge of zero.
Advantages of the technology
Disadvantages of the technology
Because of the phosphor technology in Plasma TVs, it is possible for traces of an image to be 'burned-in' to the display. This is generally only a concern in commercial uses, where images are displayed for long-periods of time. Those that watch stations that offer news tickers may also need to be careful. Burn-in can generally be avoided by making sure that you do not keep a constant image on the screen for extended periods, either by turning the television off, or changing the channel.
Price range of the technology
Around $700-$1,500.
