Samsung LN55A950 LCD TV:
Measurements Measurements

Contrast & Resolution
Peak white level

• Full white field: 23.7fL
• 100 IRE window: 19.2fL

Black level: 0.000fL
Peak contrast ratio: N/A
Overscan

• 480i/p: 3% (16:9)
• 720p: 3 pixels (Just Scan)
• 1080i/p: 0% (Just Scan)

Horizontal bandwidth at 1080i

• HDMI/DVI: 37.1MHz
• Component: 37.1MHz

Component and HDMI inputs were rock solid all the way out to 37.1MHz

The backlight was set to produce a comfortable peak-white level in a dark room. There was plenty of headroom to increase the backlight for lots of ambient light.

The black level was measured with Smart LED (local dimming) on, resulting in a reading of 0fL on the light meter and an infinite peak contrast ratio. Of course, the practical contrast ratio is not infinite, but we have no way to measure it effectively in this case.

Grayscale & Color Temperature

With Color Tone set to Warm2, the grayscale was pretty darn close to D65, with a slight deviation toward blue at the bottom end.

Calibration brought the grayscale even closer to D65.

Pre-cal, red was deficient throughout most of the brightness range, and blue poked up a bit at the bottom end.

Calibration improved the color tracking, though the bottom end could not be brought completely into convergence.

Overall, the pre-cal color temperature was pretty close to 6500K, rising slightly in the high end.

As with the other measurements, calibration improved the color temp slightly.

Color Accuracy

In the Native Color Space mode, the color gamut was generally oversaturated.

The color gamut was much better in the Auto Color Space mode.

In the Custom Color Space mode, each color could be tweaked to near perfection.