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| Buying an LCD Flat Panel Television |
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Native
Resolution
Wow. This confuses so many.
Principally, the higher the resolution the more detail in the image. If you will
be sitting close to your TV, the resolution needs to be high so you do not see
the little dots (pixels) that make up the picture, i.e. pixilation.
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Guess which
has the higher resolution? |
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The highest resolution in LCD televisions is 1920 pixels wide by 1080 pixels
high. This is a true high-definition monitor and will display an HD image
perfectly. However, 1366x768 and 1280x720 resolutions are still called HDTVs
because they can display the HDTV with no scaling. Just remember that the second
number needs to be 720 or more to be a true HDTV.
Televisions with less resolution (i.e. less
pixels) may sometimes claim to be HDTV-capable,
that only means they can show the image through
processing - but some detail is invariably lost.
If you have the time to read about this in more
detail, check out
www.ecoustics.com for a thorough explanation of
pixels. An in-depth explanation of native resolution
can be found at the
DesignTechnica
website. |
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| Brightness
This is usually the spec that
differentiates the $1000 models from
the $4000 ones. The human eye is
more sensitive to levels of
brightness than it is to variations
of color. Therefore, most people
will perceive a brighter television
as being better. Measured in cd/m2,
the brighter a TV the better it will
appear even when viewed in a
brightly lit room. Most of us will
be OK with a brightness of 350-450
cd/m2,
unless you're planning on setting up
in the outdoor balcony.
Flat panel displays, especially
plasma TV's, have developed a rumor
that they lose their brightness too
fast. In fact, all televisions lost
their brightness gradually over a
period of years. A standard
television loses about 30% of its
brightness after about 20,000 hours.
A plasma will lose 50% after 30,000
hours. That's about 9 years of 8
hours a day viewing.
The average lifespan of an LCD
display is 60,000 hours. If watching
TV was your full-time job, and you
did it 24 hours a day, it would take
you almost 7 years to wear out your
LCD display. With more normal
viewing habits of, say, 8 hours per
day, you can extend the lifespan of
your TV by a decade or more (to
about 20 years)! |
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