LG 47LG60 LCD TV Measurements

Measurements

Contrast & Resolution

Peak white level

  • Full screen: 23.5fL
  • 100 IRE window: 23.5fL
Black level: 0.029fL
Peak contrast ratio: 810:1
Overscan
  • 480i/p: 2% (16:9)
  • 720p: 0% (Just Scan)
  • 1080i/p: 0% (Just Scan)
Horizontal bandwidth at 1080i
  • HDMI/DVI: 37.1MHz
  • Component: 37.1MHz

These measurements were made with the backlight set to produce a comfortable peak-white level in a dark room; the backlight can certainly be increased to compensate for ambient light.

I saw some odd, slowly moving moiré in the high-frequency burst of the bandwidth test pattern, though the burst itself was clearly visible via both HDMI and component.

Interestingly, there was no overscan at 720p, which is rare.

Grayscale & Color Temperature

Before calibration, the Warm color-temp setting was pretty darned close to D65, skewing ever so slightly toward magenta.

Using the 2-point grayscale calibration controls, I got most brightness levels closer to D65, except 20 IRE, which tended toward blue.

Using the 10-point cal controls, I got the grayscale nearly perfect across the entire brightness range.

Pre-cal, the grayscale had too much red and blue, leading to the magenta skew.

After the 2-point calibration, the color tracking got a lot better except at the very low end.

The 10-point calibration got the color tracking right on the money, better than I've seen on just about any other set.

Before calibration, the color temperature was not bad at all, though not entirely flat across the brightness range.

The 2-point calibration flattened the color-temp tracking except at the low end.

Using the 10-point cal settings, I got the color temp to track ruler-flat.

Color Accuracy

Before using the color-management system, the primary and secondary color points were pretty close to correct; green, cyan, and magenta were slightly off.

Using the CMS, I was able to bring cyan and magenta into line, and I got green closer to correct, but I couldn't dial it in perfectly. Unfortunately, I couldn't set the intensity of each color because the TV provides no such controls.

COMMENTS
Benstoke's picture

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