Q I have a Vizio TV, model number D48f-E0. The company’s specs say that it’s a “Full-Array LED display.” It also has a “Backlight Control” in its picture settings menu that automatically dims or brightens the backlight during viewing. Is this feature the same thing as local dimming? I’m confused here—if backlight control and local dimming are separate features, what’s the difference between them?
JAMES PAXTON / VIA EMAIL
A Just because a TV has a “full array” LED backlight doesn’t automatically mean that it provides local dimming. Case in point: your Vizio D-series LCD TV. When that set’s Backlight Control feature is enabled, the LED array in its backlight is dynamically dimmed based on the overall brightness range of the images being displayed. In this particular case, however, the dimming is a global process that incorporates the entire LED backlight array, as opposed to local “zones” in the backlight comprised of a group of adjacent LEDs.
この記事は Sound & Vision の September 2020 版に掲載されています。
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この記事は Sound & Vision の September 2020 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、9,000 以上の雑誌や新聞にアクセスしてください。
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The Big Clean
Chances are you probably do not think about the state of your electronic devices too often. Oh, you might think about all the upgrades you would like to make; where you would put those new tower speakers, or how a second or third subwoofer would really tame those bass modes in your room, or how much more cinematic a larger screen would be. Sure, you think about that part of your system. But how often do you think about the well-being of your system?
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