TV and monitors are starting to see the introduction of a new method of lighting which is enhancing the picture quality. The use of LEDs in lighting is replacing fluorescent lights in LCD displays. The advances in this area have improved pictures, energy efficiency and made them more slim-line. Manufacturers such as Sony and Samsung have seen impressive sales figures of LED Televisions.
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.
The use of the phrase LED TV has come under some scrutiny. In the GB the ASA was critical of the use of the phrase and said it was misleading to consumers. It indicates that LEDs are more significant than they actually are. In the end manufacturers agreed that they would make the function of LEDs in these televisions clearer in their advertising. Other makers of TVs indicated a better description would be to call such displays LED lit LCDs.
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.
In LCDs televisions and displays up to this point, the lighting was provided by fluorescent strips. Replaced by light emitting diodes, screens can now be manufactured to produce some of the slimmest sets we have ever seen. Sony has a model that is a mere 10mm at its thinnest point. Samsungs sets measure about 3cm in thickness. Both a big improvement in what we have seen on the market up to now. With LED TVs individual LEDs can be controlled, we are seeing improved contrast controls meaning the levels of lightness and darkness are much brighter and darker.
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.
One major negative with fluorescent lit LCD displays was that over time (typically over 3-5 years) the fluorescent lights would fade. As modern electronics are not design to be repaired, when this occurred there wasn?t much the consumer could do other than buy a new set. This throw away nature is still no different, but the life span of LED TVs has been improved as the fluorescent lights are no longer required and LEDs are more reliable in this respect.
An added benefit with the use of LED technology in TVs and monitors is that LEDs are also far more efficient that fluorescent lighting. This has the effect that LED TVs can be up to 40% more energy efficient than an equivalent LCD displays and up to 50% more efficient than plasma TVs. - 29967
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.
The use of the phrase LED TV has come under some scrutiny. In the GB the ASA was critical of the use of the phrase and said it was misleading to consumers. It indicates that LEDs are more significant than they actually are. In the end manufacturers agreed that they would make the function of LEDs in these televisions clearer in their advertising. Other makers of TVs indicated a better description would be to call such displays LED lit LCDs.
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.
In LCDs televisions and displays up to this point, the lighting was provided by fluorescent strips. Replaced by light emitting diodes, screens can now be manufactured to produce some of the slimmest sets we have ever seen. Sony has a model that is a mere 10mm at its thinnest point. Samsungs sets measure about 3cm in thickness. Both a big improvement in what we have seen on the market up to now. With LED TVs individual LEDs can be controlled, we are seeing improved contrast controls meaning the levels of lightness and darkness are much brighter and darker.
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.
One major negative with fluorescent lit LCD displays was that over time (typically over 3-5 years) the fluorescent lights would fade. As modern electronics are not design to be repaired, when this occurred there wasn?t much the consumer could do other than buy a new set. This throw away nature is still no different, but the life span of LED TVs has been improved as the fluorescent lights are no longer required and LEDs are more reliable in this respect.
An added benefit with the use of LED technology in TVs and monitors is that LEDs are also far more efficient that fluorescent lighting. This has the effect that LED TVs can be up to 40% more energy efficient than an equivalent LCD displays and up to 50% more efficient than plasma TVs. - 29967
