HD has been adopted as the digital standard of the future and around the world, many consumers are cashing in on the HDTV market. There are a number of different types of HDTV sets including the recently introduced LED TV. LED TVs may be marketed as a new type of HDTV but LED TVs have been around since 2007. As the decision over which HDTV to get becomes more complex, there are some things about LED technology that anyone should know before picking their next HDTV.
LED is a backlighting technology that was designed to replace the LCD TV CCFL lighting that was not environmentally friendly and consumed a lot of power. LED stands for light-emitting diodes.
LCD technology is very different from plasma and OLED display technology, which are emissive display technologies. For OLED/Plasma Displays each pixel is its own discrete light source whereas LCD and LED use lighting technology where each pixel has to be illuminated or lit from behind, hence the term backlit. LCD technology is commonly used for IT and computer products although it has also been used successfully with HDTVs and LCD based HDTVs are the most common type of HDTVs available. So what does one need to know about LED TVs?
LED HDTVs are based on LCD technology. LED TVs use a trans missive technology where each pixel has to be illuminated from behind, or backlit.
LED TVs have two types of backlighting. LED TVs have two main types of backlighting that are used by different HDTV manufacturers. These two types of LED lighting include “full-lighting” and “edge-lit”. Full-lighting refers to LED lighting that goes across the back panel of the HD TV set, just like the CCFL backlight. For thinner LED TVs as those available, the edge-lit is used. Edge-lit is set into four main side of the HDTV and light is sent and displayed towards the middle of the HDTV using light guiding.
LED HDTVs are today taking emergence alongside other types of HD TVs. Edge-lit LED TVs are the most common type of HD TV available today.
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