Mitsubishi LT-46149 46-inch LCD HDTV Page 3

TEST BENCH

Color temperature (Cinema Night Setting/6500° temperature before/ Cinema Night Setting/6500° temperature after calibration): 20-IRE: 7,317 K/6,398 K 30-IRE: 7,768 K/6,566 K 40-IRE: 7,287 K/6,619 K 50-IRE: 6,961 K/6,243 K 60-IRE: 7,166 K/6,306 K 70-IRE: 7,162 K/6,549 K 80-IRE: 7,268 K/6,547 K 90-IRE: 7,395 K/6,673 K 100-IRE: 7,607 K/6,754 K

Brightness (100-IRE full field): 12.3/17.4 ftL

Primary Color Point Accuracy vs. SMPTE HD Standard

Color

Target X

Measured X

Target Y

Measured Y

Red 0.64 0.632 0.33 0.332
Green 0.30 0.242 0.60 0.634
Blue 0.15 0.151 0.06 0.036
Cyan 0.025 0.189 0.329 0.312
Magenta 0.321 0.316 0.154 0.149
Yellow 0.419 0.411 0.505 0.505

The Mitsubishi's out-of-box picture looked most accurate with its Natural mode and Low color-temperature option selected. Grayscale tracking was good overall but somewhat cooler than standard in that mode, ranging about 400 to 1,300 K above 6,500 K. No grayscale adjustments are provided in the User menu other than the Low and High presets. The TV's red, green, and blue color points showed significant oversaturation, although this appears to be by design based on what Mitsubishi calls Full Spectrum Color. The color decoder showed a modest +5% red push and -10% blue pull. However, the Perfect Color adjustments in the set's User menu, which let you individually tweak the level of different colors, give you some ability to compensate for any inaccuracies.

Overscan - the amount of picture area cut off at the edges of the TV's screen - measured 0% for 1080i/p-format high-def signals using the Full Native display mode. With other modes enabled, overscan clocked in at 2%. Both 1080i and 720p test patterns were displayed with full resolution via the HDMI inputs, but the 1080i pattern showed some resolution loss at the highest frequency of a multiburst pattern when using a component-video connection. Even with the Sharpness control at its minimum setting, there was some slight edge enhancement via both the component-video and HDMI inputs. Full-gray fields revealed very good screen uniformity for an LCD. The sides of the screen looked brighter than the center below 50 IRE, but there were no major hotspots. Contrast remained strong up to about 40º off-axis, beyond which black levels would start to wash out.

The Mitsubishi did an excellent job with most of the tests on both the Silicon Optix HQV Blu-ray and DVD test discs. Its 2:3 pulldown processing was quick to lock in with film-based programs, and the 120-Hz mode did an excellent job of smoothing out judder in the slow stadium pan. The set's digital noise reduction did a good job of cleaning up mosquito noise from pictures without eliminating detail, although I saw little difference between the three available presets.

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