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5
For instance, a DVD player will output 480p and
the TVs scaler will upconvert the signal to the TVs
native resolution, which will be something similar
to either 720p, 1080i or 1080p. Since there are a
number of incoming resolution formats from
480i/p to 720p to 1080i/p and more, the scaler
must do an excellent job of mapping all of these
to the screens native resolution, which, on a
1080p panel is 1920 by 1080.
FPTVs must also do an excellent job of de-
interlacing. This is the process that converts an
interlaced single like 480i or 1080i to a sequen-
tially scanned signal for display on the panel
since plasma and LCD panels cannot directly
display an interlaced signal.
These are just two examples of video processing.
There are quite a few more video processing
algorithms required for good performance, many
of which are proprietary to the different manufac-
turers. Suffice it to say that the quality of video
processing and the resultant picture quality are
generally related to price.
THERE IS A LOT OF COMPLEX VIDEO SIGNAL
PROCESSING
 that goes on behind the scenes
of FPTVs to make the viewed image as good as
possible. All current FPTVs have a built-in scaler,
which converts any arbitrary incoming signal
resolution to the native pixel resolution of
the screen.
When shopping for a flat panel,
COMPARE THE PICTURES VERY
CAREFULLY
...
TIPS
INDICATION OF
PROCESSING QUALITY:
Look for the telltale signs like motion
smearing and little random blocks of
color or streaking in the picture that
does not belong there.
IN-STORE MODE:
Be aware that when the televisions are
shipped to retail stores for display, most
manufacturers, regardless of price point,
set their TVs in "store" or "vivid" mode
to create eye catching contrast and
color in an effort to stand out among
the competition. This can be extremely
unnatural in the home.
ALTERNATE MODES:
If you are seriously considering a
panel, ask the salesperson if you can
try some of the other picture modes
such as "cinema", "theater" or
"custom". This will give you a better
idea of what the set should really look
like when you get it home.
The quality of video processing
and the resultant picture quality
are generally related to price
VIDEO
PROCESSING
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