Samsung’s latest HDTV flat panel offering, the 40” LN-T4081F, significantly raises the LCD performance bar, providing the highest LCD panel motion resolution ever measured, accurate color and the best black levels and dynamic...
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Samsung’s latest HDTV flat panel offering, the 40” LN-T4081F, significantly raises the LCD performance bar, providing the highest LCD panel motion resolution ever measured, accurate color and the best black levels and dynamic rated contrast ratio (would you believe 500,000:1) of any flat panel. The secret sauce? The 81 series are the first large screen LCDs that incorporate white LEDs (light emitting diodes) as a light source instead of fluorescent lamps (usually CCFL-Cold Cathode Fluorescent Lamps). The 81 series also features localized dimming (Samsung calls it “Smart Lighting”), providing another LCD first, which is the ability to turn the intensity of the light source either down or off in the areas where the image is dark or black. The LN-T4081F ($2999; review sample is a pilot production unit) represents the top of Samsung’s LCD HDTV line (the series also includes 46”, 52” and 57” sizes). In addition to its unique back lighting system, the 81 series has other high-end Samsung features that include side firing speakers, a rear firing woofer, three HDMI inputs (one on the side), two component video inputs and a USB memory reader (for photos). The LN-T4081F has a “pixel for pixel” aspect ratio to display all the image information that is contained within a high definition broadcast or high definition disc to appear on the screen. Samsung calls it “Just Scan”. Samsung also provides a Gamma adjustment (Gamma is the rate of transition from black to white) using presets. The “–3 “setting position was the most accurate setting. As with some other recent Samsung LCD flat panels, this series features a shiny anti-reflective screen coating similar to ones found on many plasma panels. The shiny coating increases image contrast and produces “more vibrant colors,” according to Samsung’s website. Unfortunately, it also produces well-defined reflections of bright objects such as lamps located opposite the viewing position, though most people have the good sense to both keep such light sources away from viewing room locations likely to produce such reflections, and for daytime viewing, to cover windows with blinds and/or curtains. I prefer the shiny, anti-reflective coating found on these new sets as well as on most plasmas and on some of the latest LCDs over dull anti-glare coatings and I am amazed that some LCD manufacturers continue to use “anti-glare” as a major selling feature to distinguish their sets from “anti-reflective” plasma sets. The heart of the Samsung LN-T4081F is its 1080p (1920 x 1080 resolution) S-PVA LCD panel, the same one used in other top Samsung models as well as many of the larger panels in Sony’s XBR series (Sony and Samsung co-own a factory that produces these panels). The S-PVA LCD panel has the best angle of view and response of any LCD Samsung produces (there’s more on viewing angle later). The local dimming feature incorporated in the 81 series models produces a black screen when there is no signal on the screen by completely shutting off all of the LEDs. When the content includes black areas in a portion of the image, the LEDs behind the dark area turn off. The TV’s local dimming circuit monitors the content and, zone by zone, constantly changes the LEDs’ intensity, depending on the content. Samsung combines the local dimming feature with what it calls “Motion Plus,” a scanning technology that activates the horizontal rows of LEDs progressively from top to bottom to dramatically decrease motion blur in this 60Hz panel. With Motion Plus activated, the panel measured a record-setting (for LCD) 800 lines of horizontal measured resolution (using the “FPD Benchmark Software for Professional” 1080i Blu-ray Test Disc), which is 33% greater motion resolution than that of any other LCD panel tested to date including 120Hz models from Sharp and Sony. That ranks the LN-T4081F near the best set ever measured (900 lines, the soon to be reviewed Pioneer PDP-6010FD). With Motion Plus in the “off” position, resolution dropped to 550 lines, which is just short of the 600 lines of the best previously tested 60Hz LCD
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