Saturday, March 29, 2014

What are the pros and cons of LED and LCD tv's?




Miss.P





Answer
First the difference is how the TV's are backlit. Both are LCD screens, but "LCD" is backlit by a CFL lighting...fluorescent lighting where LED-LCD's are backlit by LEDs either the entire panel or edgelit for the thin panel sets.

LEDs provide more vivid colors and deeper blacks normally associated with plasmas. They, the backlights, will last much longer too, operate cooler, and use less energy.

Again, if you want a very thin TV, then the edgelit LED is the way to go. I have a Sony 55" edgelit LED that we have mounted on the wall and love the picture...1080p through blu-ray and 1080i through FiOS.

If you're not in a great hurry and want to save a bundle, sign up for tigerdirect.com's email list. They run sales all the time and have some really great deals. My TV normally lists for $2069, but I got it just before the Super Bowl for $1249 which included free shipping and no sales tax.

What are the pros and cons of LED vs. Plasma TV?




Think abou


Per feedback I'm reading, the plasma TV I almost bought had rave reviews, but then I read they only last about 6 years until the nitrogen that runs them runs out and you can't repair them. But maybe by then it's time to switch anyway? Is that the only difference between the two?


Answer
Plasma: gas-filled cells are ionized, producing light of varying colors to form the picture. Modern plasma sets produce brilliant pictures, as good as anything else. They're best for fast action sports and game consoles. Takes more electrical power, and physically heavier than equivalent LCD/LED sets. Generally lower cost.

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.




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