What does monitor/tv with "LCD with LED" mean?

[Lafiel]

there are different types of "LED" TVs:

LED edge-lit:
the LEDs sit in the frame of the TV and not directly behind the LCD layer

advantages: good power savings; extremely thin TVs, cheap
disadvantages: no "local dimming" (no better contrasts than normal LCD); relatively slow color response times due to using LCD


LED back-lit:
the LEDs sit behind the LCD layer

advantages: "local dimming" possible, which can enhance contrasts, but the quality of this is dependend on the amount of LEDs and the processing power of the TV; still good power savings
disadvantages: more expensive; good local dimming can introduce additional TV-lag if it's processors aren't fast enough; TVs can't be build as thin; relatively slow color response times due to using LCD


OLED(/AMOLED):
the LEDs themselves produce the picture, there is no LCD layer; LEDs are made from organic substances

advantages: perfect local dimming, so extremely high contrasts are possible; TVs can be extremely thin; fast response times
disadvantages: colors deteriorate over time, especially the blue color; very expensive (as TV); needs very fast processors in the TV


"crystal" LED:
the LEDs themselves produce the picture, there is no LCD layer; LEDs are anorganic

advantages: perfect local dimming; can be extremely thin; colors don't deteriorate; fast response times
disadvantages: new technology and only one prototype has been shown up until now; needs very fast processors;probably extremely expensive (not even available for purchase at this time)