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What is Plasma Display and how it works?
See New
3D LCD
Technology Flat panel plasma display
is the latest display technology and the best way to achieve displays
with excellent image quality and large, flat screen sizes that are
easily viewable in any environment. Plasma panels are an array of cells,
known as pixels, which are composed of three subpixels, corresponding to
the colors red, green, and blue. Gas in the plasma state is used to
react with phosphors in each subpixel to produce colored light (red,
green, or blue). These phosphors are the same types used in cathode ray
tube (CRT) devices such as televisions and standard computer monitors.
You get the rich dynamic colors that you expect. Each subpixel is
individually controlled by advanced electronics to produce over 16
million different colors. All of this means that you get perfect images
that are easily viewable in a display that is less than six inches
thick.
 Superior Performance
With flat panel plasma
screens, in addition to bright, crisp images, there are other
advantages. Unlike projection screens, which are designed to concentrate
reflection to a narrow viewing area for brightness, plasma screens
permit an exceptionally broad viewing angle -- over 160 degrees. This
means that no matter where audience members are in the room, the
brightness and clarity come through. And unlike conventional television
screens, plasma panels are absolutely flat. This reduces glare and
permits viewers to see the entirety of the screen from a broader
perspective. Since panels are backlit rather than reflective (as in
projection), they perform exceptionally well in bright environments.
Versatile and
Ready
Plasma panels are
available in a variety of configurations. Along with varying
resolutions, panels come in two aspect ratios: 6:4 and 16:9. 6:4 ratio
is the same as conventional televisions and computer monitors. Where, as
is the case with current broadcast standards, the media has been
formatted for these devices, 6:4 ratio delivers a quality picture that
fills the entire screen. Presentations that have been prepared on
conventional monitors will appear as they did on the original authoring
platform, completely filling the screen. In the 16:9 ratio, plasma
panels are capable of delivering wide-screen media without
"letterboxing" or blanking of parts of the screen. Wide screen panels
are typically capable of higher resolution in data modes and capable of
displaying wide screen video formats such as HDTV. What's more, 16:9
panels are also capable of displaying media prepared for traditional 6:4
screens via letterboxing. With video cards users can take advantage of
the larger perspective by preparing presentations and other media for
wide-screen showing.
 A Note About DTV and
HDTV
On April 4, 1997, the FCC
ushered in digital television (DTV) by giving 6MHz of spectrum to
approximately 1,500 stations for DTV broadcasting. The decree required
the three commercial networks in the top ten markets to broadcast
digitally by May 1, 1999, with markets 11 through 30 online by November
1, 1999. All stations must broadcast digitally by 2006, when their
current analog spectrum is scheduled to revert back to the Fed. While
there is only one standard, there are 18 different video formats. The
first split is between high definition and standard definition TV. Six
of the video formats in the ATSC DTV standard are high definition TV:
these are the 1080-line by 1920-pixel formats at 24 and 30 frames per
second (1080i) , and at 60 fields per second for interlaced HDTV, and
the 720-line by 1280-pixel formats at 24, 30 and 60 fps (720p). The HDTV
formats have a 16:9 aspect ratio. The 12 video formats which compose the
remainder are standard definition television -- not high definition.
These consist of the 480-line by 704-pixel formats in 16:9 widescreen
and 4:3 aspect ratios (at the 24, 30 and 60 pictures per second rates);
and the 480-line by 640-pixel format at a 4:3 aspect ratio at the same
picture rates. The formats which represent HDTV are 1020i and 720p. The
"i" and the "p" in the format names refer to interlaced and progressive
scanning. In interlaced scanning, half of the lines in a full frame are
scanned onto the screen in a sixtieth of a second, followed by the
remaining half of the scan lines in the next sixtieth. The odd lines are
scanned first, then filled in by the even lines. In an attempt to meet
expectations
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