A:
Really, picking which one is better is a matter of personal preference. LCD traditionally uses a CCFL (Cold Cathode Fluorescent Lamp) backlighting system that runs across the rear internal portion of the unit to illuminate the LCD panel from behind. This lamp technology enjoys a tremendous following of enthusiasts, and translates into years of enjoyment of an affirmed, reliable and trusted technology.
LED (in this application, it is also known as LCD-LED) TVs use specialized versions of the LED lights that have been used for years. It allows an LCD panel (yes LCD, not a LED panel) to be lit either from behind (replacing the CCFLs with LEDs), or from the side using an efficient energy friendly infrastructure that emits light evenly behind the panel in order to illuminate the entire LCD panel evenly, called EDGE-LIT LED. EDGE-LIT LED Technology has a few additional benefits in that the design of the LED panel can be slimmer than traditional LCD panels and reduces energy consumption.
LED also has a few additional benefits, such as offering an accurate and natural color, as well as increased performance with black levels. LED is also free from toxic materials, such as mercury, lead or volatile organic compounds.
-MrSamsung