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LCD stands for "Liquid crystal display" and technically bot LCD and LED (Light Emitting Diodes) TVs are Liquid crystal displays.
The basic Technology is the same in that both television types have two layers of polarized glass through which the liquid both block and pass Light. So really LED TVs are the subset of LCD TVs.
LED differs from general LCD TVs in that LCDs use fluorescent Lights while LEDs use those Light Emitting Diodes. Also, the placements of the lights on an LED TV can differ. The fluorescent lights in LCD screen are always behind the screen. On an LED TV, the light emitting diodes can be placed either behind or around the edges of the screen.
The difference in and in lighting placement has generally meant that LED TVs can be thinner than LCDs although this is just the starting to change. It has also meant that LED TVs run with greater Energy efficiency and can even provide a clearer, better picture than the general LCD TVs.
LED is much better than LCD. LED takes less power compare to LCD and LED has improved brightness and contrast.
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