Originally Posted by fs454 /forum/post/19601015
LED TVs are always LCDs. LED TV refers to the backlight. There's two types of LED backlit TVs, full array and edge lit. Full array LED backlit TVs are an LCD screen with an entire array of LEDs behind the screen, that can dim certain areas of the screen on command, to improve the black levels. Edge lit is just what it sounds like, the LEDs are only on the edges, shining through a tunnel to even out the light. Black levels and uniformity are not as good on these sets, but some are pretty damn good anyways, and they're thin.
There's "OLED" TVs that are actual LED TVs, and you'll know you're buying one of those if the only one you can find is 21 inches and it costs $8000.
Originally Posted by specuvestor /forum/post/19602453
OLED, LED backlit LCD and LED Displays are very different technologies
LED backlit LCD looks better than CCFL LCD mainly because of localized dimming with better blacks and non matte screen for better contrast.