Plasma TVs have been one of the most popular home entertainment
solutions on the market for several years. They offer
outstanding resolution and a quality picture and are usually
capable of displaying HDTV signals, allowing you to watch all of
your favourite HDTV programs. Compared to rear projection TVs,
plasma technology offers some of the best viewing angles- no
need to fight over the best seat anymore- and offer uniform
screen brightness.

But how does plasma technology work? It's pretty simple. Some
form of inert gas- say Xenon, for example, is inserted between
two plates, which are held together, between which are over two
million pixels, capable of producing a mind-boggling array of
colors. The gas is then energized by a charge which turns it
into a viscous substance, creating an ultraviolet light, which
allows each pixel to display the appropriate color. Unlike
rear-projection TVs, each pixel in a plasma display contains
red, blue, and green phosphors, there is no need for a
cathode-ray tube. In traditional TVs, the cathode-ray tube, or
CRT, fires electrodes to the screen, where they excite phosphor
atoms causing them to light up, thus creating a picture. The CRT
is bulky and is responsible for the box-shape of traditional
televisions. For example, if you want to increase the size of
the screen in a CRT, you must also create a larger cathode-ray
tube, therefore making the whole TV that much bigger- and bulky.

One drawback to plasma technology is the inability to recharge
each individual pixel. Each pixel is an independently sealed
entity, as is the plasma display panel and the gas, so if a
pixel, or a group of pixels, fail or darken, the entire panel
unit must be replaced.

Fortunately, however, you can expect your plasma display to last
at least 60,000 hours of playing time, before the pixels begin
to darken. So, in layman's terms, if you watch your TV for four
hours a day, you can expect the panel to last around eighteen
years.

Plasma technology has greatly increased the quality of home
entertainment, ushering in a new era of television technology.

About the author:
Tom Ace is the founder of
Plasma tv Resources a website providing information on
plasma televisions

Author : Tom Ace
Site : www.goarticles.com

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