By Al Griffin • January 2008 There's been significant buzz on the LCD HDTV front lately, much of it surrounding models with 120-Hz scanning, a feature designed to combat picture lag in fast-motion images. But the arrival of panels that do away with...
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By Al Griffin • January 2008 There's been significant buzz on the LCD HDTV front lately, much of it surrounding models with 120-Hz scanning, a feature designed to combat picture lag in fast-motion images. But the arrival of panels that do away with the standard CCFL (cold cathode fluorescent light) backlight in favor of LED lamp arrays is another development that tech-savvy shoppers have been anticipating. Both Samsung and Sony rolled out mega-size versions of such sets in 2007 — and, at $30,000-plus, with mega-size price tags to match. But Samsung's new LN-T4681F 46-inch model, priced at $3,999, represents a more real-world implementation. The LED backlight allows Samsung's 81 Series LCDs (also available with 40-, 52-, and 57-inch screens) to pack a number of notable features. First and foremost is LED SmartLighting, also known as "local dimming." When active, this feature divides the TV's LED array into zones that can be turned off in areas where dark shadows are being displayed. By... See less 
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