25th Sep 2004

Comparing lcd televisions to plasma screen tv’s

Lcd televisions and plasma screen tvs are the two main contenders when it comes to flat screen tv technology. The difference between the two lies in the technologies that produce stunningly bright and clear images. While the lcd tv uses liquid crystal displays powered by a strong fluorescent backlight, the plasma television produces its display by electrically charging trapped gases which then produce the picture. To the consumer, it’s all too easy to get confused between lcd televisions and plasma screen tvs.

One of the benefits of lcd televisions is that since the light source is independent of the screen display, it can be replaced if it ever wears out or breaks down. Also, since the liquid crystal display in lcd televisions doesn’t emit light themselves, there is no chance of burn-in. On the other hand, lcd tvs are more expensive to produce at larger screen sizes due to quality control and the number of bad pixels that become noticeable. That’s why you don’t actually see very many flat screen tv’s at really large sizes (e.g. more than 34 inches diagonally).

On the other hand, lcd televisions are not as popular as plasma screen tvs, most likely due to the fact that plasma screens have been around for longer and at the larger flat screen tv sizes. The disadvantage plasma screen televisions have as opposed to lcd tv’s is that the screen can suffer from image burn-in if left on a static image for too long. But, with careful and normal use (i.e. not pausing on an image for too long), the average owner should see no effects from this. As for replacing the screen should the gas element burn out, that is simply not possible because it is the individual gas chambers that glow and not a backlight. Again, with normal use, the life expectancy of a plasma screen tv can be well over a decade.

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