Simply put, an Led television and an Lcd television are one and the same thing. The incompatibility between a appropriate Lcd television and an Led model lies in the recipe of backlighting. General Lcd screens are built by sealing a layer of liquid crystal in between two glass panels. Behind this are a series of Cold Cathode Fluorescent Lamps - Ccfl - that project light through the crystal polymer. When a controlled current is run through the crystals, they whether add colour to the light, or block it out completely. In Led televisions, the Ccfl lighting is replaced by a sequence of Leds. As they are much smaller than Ccfl lights, televisions that are Led-backlit can be made much thinner and lighter than quarterly Lcd models. Some are even under an inch thick! Led televisions are also capable of greatly increased dynamic incompatibility - the ratio of incompatibility between black and white - use less power, and are more environmentally cordial when disposed of.
However, the differences don't end here. Currently there are two ordinarily used methods of Led backlighting, known as Edge Leds and Rgb Dynamic. Each has advantages and drawbacks, so if you're mental of buying an Lcd television, it's good to know what each recipe has to offer. In Rgb Dynamic models, a sequence of red, green and blue Led lights are positioned behind the screen. When an image is displayed featuring dark colours, the Leds in that area are dimmed while the intensity of the colour is increased. As a result, televisions with Rgb Dynamic backlighting have higher Dynamic incompatibility ratios than any other Lcd model, although they are still second to plasma technology when it comes to 'true' blacks. The downside of this recipe is a loss of fine information on small, provocative objects that appear against a dark background - an image of a night sky is a good example.
Led Tv Backlighting Technology "number Of Leds"
By contrast, the Edge Led recipe is a thoroughly different kettle of fish. This type of backlighting involves the placement of white Led lights colse to the outside edge of the screen. A light-diffusing panel is then located behind the screen, which compensates for the lack of light coming from the centre. Edge Led backlighting is not capable of the same Dynamic incompatibility ratios offered by the Rgb Dynamic method, because it can't dim the backlight as de facto in a localised area. However, it is the cheaper of the two methods, and televisions carrying this technology are some of the thinnest and lightest on the market, production them very easy to wall mount.
So there you have it - there are pros and cons to Led backlighting, just as there are pros and cons to Lcd and plasma flat screen Tvs [http://www.panasonic.co.uk/html/en_Gb/Products/Viera+Flat+Screen+Tv/Plasma+Tv/Plasma+Tv+Overview/2525930/index.html]. Both Led methods are currently quite expensive, so don't expect to find them in any budget range televisions for the time being. However, with technological breakthroughs occurring all the time, it probably won't be long before Led backlighting becomes yet other industry standard.
How Does an Led Tv Work?