Test Bench: ViewSonic N4060w 40-inch LCD HDTV

Color temperature (User preset/Warm Color Temp before calibration / User preset/Normal Color Temp after calibration): Low window (30 IRE): 6,171/6,745 K High window (80 IRE): 8,044/6,514 K Brightness (100-IRE window before/after calibration): 58.4.6/47.5 ftL

The ViewSonic N4060w 40-inch LCD HDTV's color temperature tracked around 1,000 to 1,500 K above the 6,500-kelvin NTSC grayscale standard for much of its range after picture adjustments to the User preset with its Warm Color Temp mode selected. This, together with a strong green deficiency at both ends of the grayscale, caused colors to look unnatural, most obviously in skin tones. After service-level calibration - a recommended procedure for this set - tracking improved somewhat, with a ±500K variance measured between 30 and 100 IRE. (Calibration needs to be performed by a qualified technician, so discuss it with your dealer before purchase or go to www.imagingscience.com to check for a technician in your area.)

Color decoder error was minimal on the N4060w, with a +2.5% red push measured via HDMI input and +5% via component-video. Overscan - the amount of picture area "hidden" behind the edges of the TV's screen - measured 5% for both the HDMI and component-video inputs, a higher than normal amount for this type of display. 720p-format test patterns demonstrated excellent picture resolution for all high-def inputs. A small amount of edge enhancement could be seen via both the HDMI and component-video connections on test patterns, but it wasn't really noticeable on the programs I watched.

Screen uniformity was good, with only minor color tinting visible on full-field gray test patterns. Deinterlacing and scaling of standard 480i programs was average, with the various patterns on the Silicon Optix HQV test disc showing a slightly soft DVD picture with poor noise reduction and only fair diagonal filtering.

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