Life-time:
The rare gases used in plasma display panels have a life and will
fade over use. Earlier plasma TV sets had a quoted half-lifetime of
between 20,000hrs, following which the image brightness will fall
to half its original value. However, the latest plasma displays can
boost anything between 30,000 and 60,000 hours. On the other hand,
LCD displays have a guaranteed lifetime of between 50,000hrs and
60,000 hours. This degradation in image brightness takes place
gradually over time. Now, the average household in the US replaces
their TV set every 7 years. Taking a conservative figure of 30,000
hours for either technology, this corresponds to well over 6hrs
usage a day - every day - for over a period of 14 years! In other
words, both plasma and LCD displays are extremely stable and
reliable devices. This means that life-time should not be an issue
with either display technology. At the same time, keep in mind that
there is no way to re-generate the gases in a plasma display or to
repair any dead pixels in an LCD display the only option in
such circumstances will be to replace the display.
Plasma's life span is only 20,000 hours...if i watch TV 12 hours a
day...the TV can only last for 4.6 years...
LCD's life span is 50,000 to 60,000. Assuming 55,000...that will be
12.5 years...
i think LCD is more economical
