![]() By extension, there's no way to tell how good its local dimming will be. Though backlit local dimming is theoretically the best, some edge-lit models (like last year's HX850) do such a good job with their less-than-ideal LED placement that they can look fantastic.Īs I mentioned at the top, there's no easy way to tell, just by looking at a spec sheet, what kind of backlight a TV has. Since contrast ratio is the most important factor in picture quality, the better the local dimming, the better the apparent contrast ratio of the TV. ![]() Vizio is claiming some of it's 2013 TVs have local dimming, but David Katzmaier recently tested one such model, the E420i-A1, saying "Sure, black levels get darker, but the trade-off in shadow detail is one I'm not willing to make," and concluded that its "local dimming does nothing to improve picture quality."Įdge-lit LED LCDs look cool and are energy efficient, but have wildly different picture quality potential. At CES 2013, Samsung's only such TV announced was the insanely-expensive Ultra HD showpiece UN85S9, while Vizio once again went with edge-lighting for its flagship. are Samsung and Vizio, and neither has sold a full-array local-dimming LED TV for the last couple years. The two biggest-selling TV makers in the U.S. It "the best, and maybe the last, local-dimming LED TV to bear the Sony name." The only other local-dimming LED LCD was the Sony HX950, which was excellent, and is still current. The LG LM9600 wasn't great last year, and LG has yet to announce any full-array local-dimming TVs for 2013. The Elite by Sharp looks amazing, but came out in 2011 and hasn't been updated (with no rumors of a replacement on the horizon). By only lighting the areas of the screen that need it, the contrast ratio skyrockets. Here you can see an actual image of what a full-array local-dimming LED looks like, when the LCD portion isn't creating an image. The full local-dimming aspect means the TV is able to dim zones behind the dark areas of the screen in fairly specific areas to make the image really pop, drastically increasing the apparent contrast ratio. Like the "direct-lit" TVs, these have their LEDs behind the screen (the image above for direct-lit works as a visual aid for this type as well). This is the ultimate LED LCD, offering performance that rivals the better plasmas. Uniformity is generally better than edge-lit displays, but because there's no local dimming at all, the native contrast ratio is limited to the LCD panel itself (which is typically much lower than the native contrast of a plasma TV). The least expensive LED LCDs use this method, as do most of Sharp's ultra-massive LED LCDs. They work instead as a uniform backlight, like most CCFL LCDs. The LEDs are arrayed on the back of the TV, facing you, but there is no processing to dim them individually. Nearly all "backlit" LED LCDs use this method. It does not store any personal data.If this were a real image of a direct-lit LED LCD, there would be far fewer individual LEDs. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. ![]() The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is used to store the user consent for the cookies in the category "Other. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly.
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