2 August 2013 by Shifali Rao
LED TVs are some of the best HDTVs being manufactured currently, and come from Samsung, Sony, Panasonic, LG and other leading brands.
The epithet "LED TV" follows from the kind of panel lighting these TVs use and LED TVs are actually an upgrade to the traditional LCD TVs and employ different kind of backlight. In fact it's only the backlighting technology used in the two that makes their quality and nomenclature differ. LED backlit TVs (or "LED TVs") use Light Emitting Diodes to light up the display as opposed to traditional CCFL LCD TVs (or simply, "LCD TVs") which use Cold Cathode Fluorescent Lamps. Since the LEDs themselves are a whole lot smaller than these lamps, LED TVs are significantly thinner than traditional LCD TVs. Apart from the sleek exterior, LED backlit LCD TVs are capable of higher contrast ratios and more vibrant picture quality than LCD TVs. Furthermore, they are a lot more energy efficient and consume much less power than LCD TVs; and since LEDs have longer life than cathode lamps, LED TVs last longer than their predecessors.
LED television manufacturers often include a key feature called "local dimming" to obtain deeper blacks and increase contrast levels in a picture. This is perhaps what makes the picture quality in these tellies superior to LCD TVs and make their contrasts rival plasma TVs. Local dimming means the TV has separate control over different groups of LEDs and is capable of dimming or even completely turning off individual groups to get a pure black in scenes which need the utmost degrees of contrast.
LED TVs come in two kinds depending on the manner in which the LEDs backlight the front panel: Edge-lit and Direct/Full Array-lit LED TVs. In direct-lit LED TVs several rows of LEDs are placed on a panel directly behind the display, while in edge-lit TVs they are placed around the four edges of the screen. As always, there are pros and cons for each. Edge lit LED TVs are quite popular due to their slim panels that make for very sleek and convenient wall mountable models. Direct-lit TVs on the other handle local dimming well. However, in edge-lit LED TVs local dimming is not feasible since the screen is lit inwards; so scenes requiring deep black contrast are obscure and intricate details could be lost. However, Samsung, Sony and a few others have come out with Edge lit LED TVs with local dimming, but the picture quality of these can't really match up to conventional Direct/Full Array-lit TVs with local dimming.
Moving beyond the working, the recommended LED TV screen size begins from 32" and goes as high as 70" These TVs are all mostly 1080p High Definition TVs capable of displaying 1080p, 1080i and 720p resolutions.
Our list below displays the best LED HDTVs obtained from top reviews around the web. The higher end LED HDTVs are some of the best 3D TVs and SmartTVs around and come with 3D glasses, full web browsers and Skype compatibility to take television experience to the next level.
|By Digital TV Standard|
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