LED-backlit LCD television (called LED TV by Samsung Panasonic,Toshiba, Philips, LG Electronics, ProScan and 
Vizio and not to be confused with true LED displays) is an LCD TV that uses LED backlighting rather than fluorescent lights used in traditional LCD televisions.
The LEDs can come in two forms, Dynamic RGB LEDs which are positioned behind the panel, or white Edge-LEDs positioned around the rim of the screen which use a special diffusion panel to spread the light evenly behind the screen.
Differences between LED-backlit and CCFL-backlit LCD displays
LED-backlit LCD TVs differ from conventional CCFL-backlit LCD TVs in the following:
* They can produce an image with greater dynamic contrast compared with CCFL-backlit LCD TVs.
* With Edge-LED lighting they can be extremely slim. Current models on the market can be less than one inch thick.
* They can offer a wider color gamut, especially when RGB-LED backlighting is used.[citation needed]
* Lesser environmental pollution on disposal.
* Higher cost due to current market product placement.
TV manufacturers can use an LED backlight instead of the standard Cold Cathode Fluorescent Lamps (LCD-CCFL) used in most LCD televisions. It is important to distinguish this method of simply backlighting a conventional LCD panel, from a hypothetical true LED display, or an OLED display. LCD-based televisions described as 'LED TVs' are vastly different from self-illuminating OLED, OEL or AMOLED display technologies. In terms of the use of the term 'LED TV' in the UK, the ASA (Advertising Standards Authority) has made it clear in prior correspondence that it does not object to the use of the term, but does require it to be clarified in any advertising. There are several methods of backlighting an LCD panel using LEDs including the use of either White or RGB (Red, Green and Blue) LED arrays positioned behind the panel; and Edge-LED lighting, which uses white LEDs arranged around the inside frame of the TV along with a special light diffusion panel designed to spread the light evenly behind the LCD panel.
An LED backlight offers several general benefits over regular CCFL backlight TVs, typically higher brightness. Compared to regular CCFL backlighting, there may also be benefits to color gamut. However advancements in CCFL technology mean wide color gamuts and lower power consumption are also possible. The principal barrier to wide use of LED backlighting on LCD televisions is cost.
In September 2009 Nanoco Group announced that it has signed a joint development agreement with a major Japanese electronics company under which it will design and develop quantum dots for LED Backlights in LCD televisions. Quantum dots are valued for displays, because they emit light in very specific gaussian distributions. -Wikipedia-
Vizio and not to be confused with true LED displays) is an LCD TV that uses LED backlighting rather than fluorescent lights used in traditional LCD televisions.The LEDs can come in two forms, Dynamic RGB LEDs which are positioned behind the panel, or white Edge-LEDs positioned around the rim of the screen which use a special diffusion panel to spread the light evenly behind the screen.
Differences between LED-backlit and CCFL-backlit LCD displays
LED-backlit LCD TVs differ from conventional CCFL-backlit LCD TVs in the following:
* They can produce an image with greater dynamic contrast compared with CCFL-backlit LCD TVs.
* With Edge-LED lighting they can be extremely slim. Current models on the market can be less than one inch thick.
* They can offer a wider color gamut, especially when RGB-LED backlighting is used.[citation needed]
* Lesser environmental pollution on disposal.
* Higher cost due to current market product placement.
TV manufacturers can use an LED backlight instead of the standard Cold Cathode Fluorescent Lamps (LCD-CCFL) used in most LCD televisions. It is important to distinguish this method of simply backlighting a conventional LCD panel, from a hypothetical true LED display, or an OLED display. LCD-based televisions described as 'LED TVs' are vastly different from self-illuminating OLED, OEL or AMOLED display technologies. In terms of the use of the term 'LED TV' in the UK, the ASA (Advertising Standards Authority) has made it clear in prior correspondence that it does not object to the use of the term, but does require it to be clarified in any advertising. There are several methods of backlighting an LCD panel using LEDs including the use of either White or RGB (Red, Green and Blue) LED arrays positioned behind the panel; and Edge-LED lighting, which uses white LEDs arranged around the inside frame of the TV along with a special light diffusion panel designed to spread the light evenly behind the LCD panel.
An LED backlight offers several general benefits over regular CCFL backlight TVs, typically higher brightness. Compared to regular CCFL backlighting, there may also be benefits to color gamut. However advancements in CCFL technology mean wide color gamuts and lower power consumption are also possible. The principal barrier to wide use of LED backlighting on LCD televisions is cost.
In September 2009 Nanoco Group announced that it has signed a joint development agreement with a major Japanese electronics company under which it will design and develop quantum dots for LED Backlights in LCD televisions. Quantum dots are valued for displays, because they emit light in very specific gaussian distributions. -Wikipedia-