Flat screen TV is one of the most popular and exciting TV technologies today.
At only a few inches thick, flat screen TVs offer unparalleled flexibility and
convenience. Older conventional TV's, in fairness to them, did offer crisp and
vibrant images. However, these TV's, which operate through a cathode ray tube
(CRT), suffered from one major drawback, they were bulky. As screen size
increased, so did the bulk and weight. However, the TV of old has reached its
twilight years. New television technologies have enabled TV manufacturers to
create TVs with wider screen size yet still only a few inches thick. Thus, flat
screen TVs usher home entertainment into the 21st century.
Flat Screen TV basically refers to two technologies: Plasma and LCD. The
advances in these two technologies have enabled TV makers to build thin,
lightweight TV screens with a large picture area. Plasma and LCD both offer
similarly large, lightweight, flat screen TV's but the similarities are skin
deep for their inner workings are different.
Plasma or LCD?
Plasma and LCD TVs generally look similar however they use very different
technologies. Plasma utilizes a grid of tiny cells of gas plasma that light up
and create a picture when charged by precise electrical voltages. LCD (liquid
crystal display) screens on the other hand are made of liquid crystals
sandwiched between two glass plates and create images by varying the amount of
electrical charge applied to the crystals. Both Plasma and LCD offer excellent
picture quality. The following are their strengths and weaknesses and edge over
- Plasma screens can display blacks more accurately compared to LCD. Thus,
pictures in a Plasma TV have richer contrast and better detail especially in
dark TV and movie scenes. LCD TV's are catching up however.
- Plasma TV has better viewing angles than LCD TV. How far you can sit on
either side of the screen before the qualities of the pictures are affected
is what the "viewing angle" is. In LCD TVs, brightness and color tend to
shift when angled too far while that of Plasma TVs remain solid.
- Plasma TV can produce brighter color while light leakages in LCD screens
affect the color saturation.
- Plasma TVs are priced relatively less than their LCD counterparts
especially in the large screen segment. Plasma TVs offer much larger sizes
than LCDs, yet are still priced lower.
- LCD has a higher native resolution than plasma TVs of the same size.
This results to sharper images and makes LCD TV the better choice for HDTV.
- LCD TVs consume almost 30% less power than Plasma TVs.
- LCD TVs are generally lighter than similar sized Plasmas.
- Among the two, LCD screens have a longer life span than plasma screens.
LCDs can last up to 60,000 hours compared to Plasma that average from 30,000
to 60,000 hours.
- Plasma TVs are more prone to screen burn-ins compared to LCDs although
newer plasma technology are less susceptible to these.
If you are looking for a large flat screen TV, Plasma TV is recommended.
Plasma TVs can give you better value for your money. The price difference
between Plasma TVs and LCD TVs is big. However, if you have money to burn, then
LCD TV is the better choice especially if you want the sharpest images. For
smaller flat screen TVs at the range of 15” to 36”, LCD is the way to go.
Ultimately, both technologies are still evolving and new innovations and
improvements are definitely in the works.
|About The Author
Mitchell Medford is an author and product development consultant for
several consumer electronics manufacturers. Visit his website for more
information on home theater, LCD TVs, plasma televisions: