How does a TV LED?

In short, a TV LED and LCD TV is the same thing. The difference between a regular TV and an LCD model is the method of LED backlighting. Normal LCD screens are made of a layer of liquid-tight set between two glass plates. Behind it are a number of cold cathode fluorescent lamp - CCFL - in light of the project through the crystalline polymer. In the case of a performance of controlled current through the crystals, theyor add color to the light or block it completely. On TV, LED, LED Lighting CCFL replaced by a sequence. Since they are smaller than a lot of CCFL lamps, television, models are equipped with LED-backlit LCD can be made much thinner and lighter than normal. Some are even an inch thick - TV LEDs are also capable of much higher dynamic contrast ratio, the difference between black and white - use less electricity and are environmentally friendlyfriendly when disposed of.

However, the differences are not over. Currently, there are two methods of backlighting LEDs, known as Dynamic Edge LED and RGB. Each has advantages and disadvantages, if you plan to buy an LCD TV, so it's good to know what is the method for everyone. Dynamic models in RGB sequence of green and blue LEDs, red are placed behind a screen. If an image is displayed in dark colors, the LEDsin this area are in gray, while the increased intensity of color. As a result, TV with RGB backlight Dynamic Dynamic contrast ratios than any other model LCD, even if they are still second to plasma technology when it comes to "real" blacks are. The disadvantage of this method is a loss of detail on small objects that appear bright on a dark background - a picture of a night sky is a good example.

In contrast, the method is fully LED-Edgeanother matter. This type of backlight provides the positioning of white LED lights around the outer edge of the screen. A screen of spreading the light behind the screen is then that the jobs to compensate for the lack of light from the center. Edge LED backlight is not capable of the same relationship dynamic method offered by RGB Dynamic Contrast, because they do not dim the backlight, as pointed out in a limited area. However, it is the cheaper of the two methods, andTV implementation of this technology are just some of the thinnest and lightest on the market, which makes them extremely easy to wall.

So there you have it - there are advantages and disadvantages of LED backlighting, the advantages and disadvantages of LCD and plasma flat screen [http://www.panasonic.co.uk/html/en_GB/Products/ Viera Flat + + Screen + TV / Plasma + TV / Plasma TV + +] Overview/2525930/index.html. Both methods LEDs are currently very expensive, so do not expectfound in every household for TV devices for now. However, with technological innovations occurring all the time, probably will not last long until LED-backlit display is another industry standard.

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