LED TVs have improved the quality of television viewing that is rivaled by only plasma TVs. LED TV introduced a new back lighting system by using light emitting diodes that is an improvement of the LCD TVs which use fluorescent bulbs to light the crystal display.
The additional features added by the LED TVs are:
High contrast ratios – LED TVs are capable of local dimming which means that diodes can individually be switched off creating true blacks and therefore high contrast ratios. They also produce brighter whites. Traditional LCDs use fluorescent bulbs and the LCD display cannot entirely block out the light and therefore do not have a high contrast ratio.
Low power consumption – LED TVs have a lower power consumption than the LCD TVs which use the mercury CCFL. They are more energy efficient since the light emitting diodes demand much less power. The power consmption can be improved by up to 40% when compared with conventional LCD TVs.
Environmentally friendly – The LED TV does not use Mercury in their manufacture unlike the LCD TVs. The mercury in the CCFL makes the LCD TVs environmentally hazardous on disposal.
Blur reduction – LED TVs have a reduced blur effect on the picture. LCD TVs have an increased refresh rate that reduces the blur. The motion of the picture appears smoother because the video processor produces an interpolated frame, existing frame rates achieve up to a 120 Hz refresh rate. The LED TV has reduced motion blur due to the use of LEDs which do not need to be refreshed like the LCD TVs
High Contrast ratio – LED’s have a higher contrast ratio due to the local dimming effect which allows for the ability of each diode to be switched off individually creating true black and higher whites and therefore a high contrast ratio.