The technology used in LCD and plasma TV varies but they essentially do the same thing. They reproduce pictures in clear detail with great clarity.
Below are some advantages and disadvantages of LCD and plasma TVs:
LCD TVs do not burn in static images. They are also more energy efficient than their plasma counterparts. New 1080p LCD TV can display pictures in high definition using a progressive display and are lighter in weight than plasma TVs.
Plasma TVs are available in large screen sizes. They have better colour accuracy than LCD and offer little motion lag when viewing fast moving images.
They are not as good at displaying deep blacks as Plasma TVs. Individual pixels can burn out leaving a black spot on the screen. They also generally have lower contrast ratios than plasma sets.
Plasma TVs can burn in static images. They generate more heat so use more energy than LCD and they can have a shorter life span than LCD TVs
Whatever TV you get, make sure you mount it on the wall using TV brackets.