LED HD Television
LED TVs and displays employ a new technology which a have improved the viewing experience. They have now been made thinner, lighter and have a better picture quality than their conventional LCD counterparts. The advances in this area resulted in Samsung selling approx one million LED TVs worldwide in the first six months.
LED displays are not radically different to conventional LCD displays. They still use LCDs, the difference is with the source of lighting used in these displays. Rather than using fluorescent lights as previous LCD displays have, LED TVs and displays use LEDs as the screens lighting source.
Some sectors have been critical of the use of LED TV to describe these televisions as it could be construed as being inaccurate when you don?t know the whole facts. One authority in the United Kingdom responsible for advertising was critical of some of the advertising related to LED TVs. The outcome was that the makers of LEDs TV promised to clarify the use of LEDs in their advertising. Rival manufacturers have stated that LED TVs would be more accurately described as LED-lit LCD TVs.
At this point Samsung, Sony, Philips and LG have their own variations of LED televisions on the market. All have their own unique features and the result is that the new TVs produce a better picture quality, are thinner, lighter and are more energy efficient. On the down side as is to be expected with new technology, they are still more expensive than standard LCD TVs.
The use of LEDs is to provide the lighting which was formerly provided by fluorescent lights. They can be side or back lit. Side lit LED TVs can be made to be very thin, the thinnest on the market are only 1cm thick. Back lit displays aren?t far behind and have the advantage of improved contrast level. This because the LEDs which are situated behind the display can be individually controlled, this enables the TVs to produce very dark blacks by turning off the corresponding back-light LEDs.
With LED lighting picture quality is further improved because LEDs have a fuller spectrum range of light than fluorescent lights do. This has the benefit of improved contrast and enhanced color reproduction.
LED monitors as well as TVs have extended life expectancy with the introduction of LEDs technology. LEDs have a longer lifespan than fluorescent lights and, as LCD TVs are not designed to have the fluorescent lighting replaced when the backlight begins to dim or fails then there is little that can be done.
In a world that is becoming ever greener, LED TVs are doing their little bit. They are more eco-friendly than older LCD TVs. This is because of the improved efficiency of LEDs. Manufacturers will claim that LED TVs use up to forty percent less energy than standard LCD displays and even more when it come to plasmas. Another point worth mentioning is that fluorescent lighting contained mercury which has obviously been eliminated.
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