An LED TV is an LCD TV that makes use of LEDs for the purpose of illuminating the LCD display. The LED technology was previously used only for accent lighting, but today they have appeared as a possible option for lighting

applications in HDTVs. The basic technology of LEDs is that they are light emitting diodes, which can convert electrical energy into light of a single color. There isn't any waste of energy in the form of heat, as the technology used is

cold light generation.

LED technology is not really a new television technology, but just a different way to light up the LCD. The two competing technologies are LED and plasma

HDTVs. Producing true black with the LCD TV is difficult, as the light is constantly on. However even if the light is prevented from shining, some light

bleeds through to reduce the black. LEDs can fix this problem and are becoming very popular in HDTVs and ps3 xbox gaming setups. They are smaller than the

Cold Cathode Fluorescent Lamp that was formerly used on the back of the TV as a back light. LED can be employed to use less energy and produce less

heat, thus lengthening the life of the HDTV. The quality of the picture will rely upon the kind of LED lighting that's employed.

Deep blacks cannot be created by LCDs and this decreases the image sharpness in the HDTV. The colour saturation is also limited in an LCD TV. But when LEDs are used to light up the display, they are placed on the back of the display or

around the perimeter. The other technique is often known as the edge lit display. The power used in this example is also less than that utilized by standard plasma and LCD televisions that are lit with fluorescent tubes.

As the LED sources are on the side, the HDTVs using them can be ultraThey're also more cost-effective than the LCD TVs that use the LED backlit

technology. On the other hand, the TVs that use LEDs at the back of the display have the edge in that sharper and deeper blacks are created. This is down to the

fact that of a phenomenon known as local dimming.

When a dark image is required on the screen, it is possible to fully shut off the LEDs in the area, so that black looks entirely black without any light escaping into it. The LEDs can be incorporated into a control system and may also be powered from a battery pack that is compact. They are also very small and

compact in size and can withstand shock and vibrations.

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