Samsung LN32B460 LCD HDTV Review - Color Accuracy |
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Published on September 02, 2009 Comment on this |
Color Temperature (8.67) Our color temperature test checks how consistent the TV's color temperature is. If the temperature shifts around, your TV could acquire a blue or reddish hue, as the temperature heats up or cools down respectively. The ideal color temperature is 6500K, which represents the sky on a cloudy day. With our calibration, we were able to get the LN32B460 to about 7107K, meaning it'll look a bit "cooler" than it should. Even though the LN32B460's color temperature runs a bit cool to start, it's well within the perceptible error limit. Towards the black end of the spectrum, the temperature falls off of the perceptible limit a bit. Even so, these lines don't stray too far away from imperceptible. Although doesn't have a perfectly solid color temperature, the vast majority of users won't notice this minor shift.
RGB Curves (8.15) Due to the miracles of science, every color the TV displays is created from red, green, and blue. Since these three colors are the building blocks for each other color, we test them individually.
As you can see in the graph above, the RGB lines curve out smoothly with some very minor bumps towards the bright end. Like most TVs, there isn't enough concavity to their curve, which leads to some lost detail in the middle tones. Below are a few charts comparing the LN32B460 to some of its competitors. Some things to look out for include an uneven progression and vertical bars. An uneven progression means the TV isn't displaying certain colors correctly. Vertical bars indicate the failure to differentiate between two similar shades. Both of these issues can lead to some minor detail loss.
Color Gamut (4.49) Each TV is supposed to display a specific color gamut. There's actually an international standard in place that determines the bounds of this gamut, which is called ITU Recommendation .709. If the color gamut does not match this standard, the colors displayed by the TV will be off. In the graph below, the standard is the faint grey line and the bold line represents tthe LN32B460's actual color gamut. The blues appear to be slightly undersaturated, but not badly. The greens are undersaturated and shifted towards yellow a bit. The reds are oversaturated. While the LN32B460 didn't follow Rec .709 particularly well, it's not the worst performance we've seen on this test.
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• Solid color temperature.



















