wat is the difference between LCD and PLASMA TELEVISIONS?

Answer 1

There are major differences between the two, check out the table below. Basically LCD is better but more expensive (for bigger screens). Plasma's generally won't lost as long either.

Answer 2

There is a very general answer and a very broad answer. Let me dive into a few details. First there are actually two kinds of LCD TVs. They are both HDTVs, the difference is size vs price. The LCD projection TV is less expensive of the two, but has some thickness to it. It falls into size and price range of DLP. I have a 42" LCD projection that weighs about 50 lbs and I can pick up by myself. The LCD that most people think of are the flat ones that can hang on a wall.

I am assuming this is the kind of LCD you are talking about. LCDs in a general sense are usually smaller than plasma TVs. LCDs are not practical over sizes about 45". Plasmas do not start below this size. The manufacturers realized that they could not compete as well in the different arenas, so it is rare to find them in this size range. The most simple answer in the differnence is LCD is the flat TV of small to normal size, and Plasma is the flat TV of large size.

LCD will also have the problem of dead pixels. Just like in a laptop screen, a TV can have a few pixels that do not fire properly. You will be unlikely to notice, but if you ever do then you will never be able to look past it again. It is especially problematic if this pixel is falling in a continuous black area (like the letter boxes of movies, or the sides of normal non-HDTV). A few brands have a "zero dead pixel" policy. This means if you find one dead pixel they will repair/replace it. Most brands will say that a few are acceptable.

Plasmas may have a couple problems. First they can burn out, but this is unlikely to happen unless you have on almost constantly for many years. Second, the older models may burn in. This is a similar idea to the old computer monitors and the need for a screensaver. If a still image (such as a paused video game) sat on a plasma screen for too long, the image may burn in. This has been corrected in more recent models by a process of pixel rotation, where if a pixels has been sitting with no change for too long it will rotate in a minute level with pixel next to it. This is how they are preventing burning.

There is, of course, DLP, which has the highest of all the HDTV resolution. But it is not perfectly flat. LCD projection is the cheapest of all the small HDTVs, but at the expense of possible burnout and size. LCD vs Plasma is the battle of the flats, and really the answer comes down to size. Hope this helps.

Answer 3

The main thing to remember is that both types of sets can provide excellent picture quality and performance. There are differences, and personal taste is important, too. Look at the pictures; try them both in lighted and darkened areas. Here is a summary of the differences:

Picture quality of plasma is brighter, better color, better blacks than LCD.
But LCD pictures can look quite good; we’re not talking huge differences.

Sharpness is the same for equivalent pixel counts. Some newer LCDs have 1080 x 1920 resolution, most plasmas still in the 768 x 1024 range.

Plasma is heavier and uses more power than flat panel LCD.

There are reports that plasmas are not as reliable or they don't last as long, but that is no longer true with the latest models. (Both LCD and plasmas have 60,00hr expected lifetime.) Plasma phosphors dim slowly over time (but not as fast as CRT phosphors); but direct view LCDs use flourescent lamps which also dim and eventually burn out (some are replaceable). Projection LCD sets have bulbs of limited life, but are replaceable and the lifetime is a few thousand hours of viewing.

Plasmas are subject to burn-in. A stationary image left on the screen for a long time could produce a permanent ghost image. The most risk is when viewing a lot of 4:3 ratio pictures (non-HD), which are displayed with vertical dark areas on the left and right to fill in the wide screen. Newer plasma designs have minimized this problem and here are ways to avoid it: many sets have a "stretch" mode which widens the picture to fill the whole screen, or will use gray bars instead of black bars. Burn-in also be a problem with extended playing of video games if there is a background image that remains stationary.

Plasmas come in larger sizes, although large flat panel LCDs are coming out, but they are expensive. LCD projectors can be 70".

LCD contrast and brightness can be reduced when viewing from off-center (both flat and projector, but sets will vary). At present, plasmas have very reflective front surfaces which could be a problem in room with lamps and windows that can be reflected by the screen. LCDs look better in bright environments, while plasmas look better in darker rooms.