LCD: Liquid crystal display, like a digital watch. Voltage is applied to each pixel in a manner that causes it to change color. The older, conventional sets commonly referred to as "LCD" are illuminated from behind by a fluorescent lamp. LCD sets are best in rooms with a lot of ambient light (plasmas have a screen glare problem). Less-expensive models have a fast-motion blur problem, seen with sports and game consoles. (No blurring with plasma.)
LED (or "LED-LCD"): Exactly the same as LCD, except that the backlight is a bank of light emitting diodes. There are two types, edge-lit and full matrix. Edge-lit LED sets can be very thin, but otherwise perform pretty much like a very good conventional LCD. Matrix-lit sets can control the contrast in specific areas of the screen, giving better overall picture quality. These sets draw the least electric power and, in theory, have the least risk for maintenance problems, but they are the most expensive of the three types.
There are also OLED sets, but they are mainly experimental at present; very small screens, prohibitively costly, and they don't last long. When that technology is fully developed, the LEDs themselves will comprise the picture.
These are the wide screen technology.
LCD
In this a special liquid is used to make picture. It is light, thin and gives good image.
PLASMA
Here a gas is used insteed of liquid. It comes in big size only. It gives better picture than lcd. It is thick and heavy. It consume much power and become. Repairing is so hard so when it breaks down there is only option to throw out.
LED
it is the best technology. It gives better picture and contrast. It consume less energy. But it is costier than other.
LCD are LED better for tv.
{ 1 comment… read it below or add one }
The pictures are comparable but the plasma TVs can't be repaired if they break they just get thrown out.
What you need to take into consideration is the lighting in the room and the shape of the room.
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