In fact "LED TV" just an ordinary LCD TV CCFL backlight LED backlight replacement into it, more correctly be called "LED backlight LCD TV", rather than a completely new principle of TV display technologies .
If you want to pop a little more understanding "LED backlight LCD TV" and "LCD TV" the relationship between the can "LED backlight LCD TV" metaphor of Apple, "LCD TV" metaphor of fruit. Apple is a fruit, "LED backlight LCD TV" only "LCD TV" kind.
It is noteworthy that, in the TV area we can often hear "OLED TV" followed, although "LED TV" only a letter difference, but "OLED TV" is a new television technology, using the active light principle, and due to technical limitations, the current is not applied in a wide range of home video.