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What
is Plasma Displays?

Price
Ranges: $4,000 to $13,000+
Sizes:
42” to 70”+
Overview:
What is Plasma TV's? Plasma displays function differently than any
other TV technology. They actually produce light independently at
each pixel on the screen, as opposed to projecting a separate light
source through or off of other elements to conjure a picture. A
plasma "screen" is actually a dense network of individual
cells, three for each pixel of the display (coated with red, green,
and blue phosphors, respectively). Each cell is impregnated with
a rare-gas mixture and connected to an individual electrode. When
the electrode for a given cell is charged with an electrical voltage,
the gas is converted to a plasma state and emits a burst of ultraviolet
light; this in turn causes the phosphors to react and produce bright
visible light at the pixel level. By varying the voltage and intensity
of the electrical charge, the proper combination of red, green and
blue light is produced in each pixel to combine into a bright, colorful
composite image. Plasma TVs are available in sizes from about 40"
up to 70"+, but be prepared for sticker shock as your size
and quality desires increase.
For
In-depth tech article on how plasma displays work click
here
For more information on TV resolutions Click
Here
Things to keep in mind when buying:
- Make
sure the Plasma Display is HD, not ED.
- Choose
models that are 720p or 1080p lines of resolution.
- Make
sure that it has one or more DVI or HDMI (more is better).
- Contrast
Ratio 3000:1 or geater
- Brightness
600 cd/m² or greater
- Ask
to watch the Plasma on an HD channel as well as a standard channel
to make sure you like the picture quality of that model.
- Ask
for the remote and adjust the Picture and color settings.
- Once
you find the model you like, check online for information and
problems with model. Also see if another manufacturer offers a
better product for around the same price.
Advantages:
Obviously, plasma TVs are desirable for their sleek form factor
— about 4" deep and wall-mountable, they're undeniably
sexy. Furthermore, plasma produces a very bright image that can
be viewed in a well-lit room, with superb color accuracy and saturation.
It's a matter of opinion, but many videophiles regard plasma's color
vibrancy as beyond compare among current technologies. Because the
light is produced at the screen rather than projected onto it, focus
is consistent and reliable across the entire screen surface, and
plasma screens can be viewed from angles as severe as 160 degrees
off-axis without detrimental effect. And plasma's accurate pixel
structure produces a picture that is geometrically perfect from
edge to edge and corner to corner, with uniform light output and
a crisp, lifelike image. Plasma Displays can range from 42”
to 70”+ in size.
Disadvantages:
Due to the direct way it produces light, plasma can be especially
susceptible to burn-in from static images such as stock-tickers
and video-game gauges. However, newer displays have begun to incorporate
"pixel-orbiting" technologies that shift images, almost
imperceptibly, to limit the occurrence of burn-in. Additionally,
although known for their high contrast and spectacular color saturation,
plasma displays have historically had difficulty reproducing pure
blacks. Recent enhancements have largely eliminated this problem,
but sometimes at the expense of fine detail in dimly-lit areas of
the picture. In high altitudes Plasma TV’s will make a humming
noise that can be irritating. Also get ready for a sticker shock
when you prepare to buy one starting at about $4,000 and drastically
increasing based upon size and quality.
For
In-depth tech article on how plasma displays work click
here