The world of television has began to see the appearance of LED Technology used in lighting LCD displays rather than the traditional fluorescent lighting that has been used up to now. With it, LEDs bring a range of improvements that are enhancing the viewing experience of consumers.
LED TVs are basically LCD TVs which utilize light emitting diodes to provide the back or side lighting. Up to now the most common form of lighting used fluorescent lighting, which had its disadvantages.
For this reason Britain?s Advertising Standards Authority questioned some of the marketing associated with LED TVs. The ASA pointed out that using LED TV to describe these new models was misleading as they are essentially still LCD TVs. The result of this was clarification was made to point out that LEDs are used to light these screens. Some manufacturers have also pointed out that a more accurate description would be to call them 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 LEDs are used in either side-lit or back-lit arrangements in LED TVs. Edge-lit LED TVs as the name would suggest use LEDs round the side of the LCD display. The TVs can be made much slimmer because LEDs take up less space than the fluorescent lights they replace. Back-lit LED TVs are not quite as thin but have the added benefit that the LEDs can be locally dimmed to produce better contrast with darker blacks. LED TVs can be made as little as 10mm thin.
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.
Paul Harrison writes about samsung full hd tv and led hdtv
