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Introduction
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01.Tour & Design
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02.Blacks & Whites
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03.Color Accuracy
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04.Motion
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05.Viewing Effects
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06.Calibration
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07.Remote Control
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08.Connectivity
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09.Audio & Menus
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10.Formats & Media
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11.Power Consumption
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12.Vs LG 32LG40
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13.Vs Samsung LN40B650
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14.Vs Toshiba 40XV645U
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15.Conclusion
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16.Series Comparison
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17.Ratings & Specs
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18.Comments
LG 37LH55
Previous: Page 2
Blacks & WhitesNext: Page 4
Motion
Color Accuracy Summary
• Good color temperature.
• Above average RGB representation.
• Somewhat accurate color gamut.
Color Temperature (7.96)
The LG 37LH55's color temperature was good, but not perfect. It shifts a bit between blue and red, but these changes won't be all theat noticeable to the human eye.
| Color Temperature | |
 |
|
Color temperature basically dictates whether or not your TV has a color cast. The hotter the temperature, the more blue it will appear, the cooler the redder. We calibrate to make the TV as close to 6500 Kelvin as we can, because this is the ideal neutral color temperature.
RGB Curves (7.97)
All the colors on a TV are comprised of red, green, and blue lights. We test each of these colors' performances individually, which lets us determine how well the TV will display any given color.
| RGB Curves | |
 |
|
There really isn't a lot of red on this TV, and it does peak ever so slightly towards the high end. Really, the high end doesn't have a lot of differentiation in it, which might lead to a loss of articulation of bright reds.
| Red Response Comparisons | |
| Ideal Response |  |
| LG 37LH55 |  |
| LG 32LG40 |  |
| Samsung LN40B650 |  |
| Toshiba Regza 40XV645U |  |
The 37LH55 did well with greens.
| Green Response Comparisons | |
| Ideal Response |  |
| LG 37LH55 |  |
| LG 32LG40 |  |
| Samsung LN40B650 |  |
| Toshiba Regza 40XV645U |  |
Our eyes are very sensitive to blues, which is why the curve is so shallow. The curve here is a bit choppier than we'd like to see, which means color doesn't increase as evenly as it should. If you were to display a blue gradient across the screen, it might look like there were a series of color bands as opposed ot a smooth transition across the color range. While this is a bit of an issue, it isn't a particularly severe one.
| Blue Response Comparisons | |
| Ideal Response |  |
| LG 37LH55 |  |
| LG 32LG40 |  |
| Samsung LN40B650 |  |
| Toshiba Regza 40XV645U |  |
Again, the 37LH55 did well on these tests. It wasn't perfect, but it was pretty good.
Color Gamut (6.11)
The color gamut describes the total range of colors the TV is capable of displaying. All TVs are supposed to follow an international standard for the colors it displays, called Rec.709.
The 37LH55 does well here: its greens and reds are spot on. Its blues are shifted a bit, however, with the most intense blue falling slightly towards green and not extending into the depth of blue it should be.
| Color Gamut | |
 |
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Below are a bunch of measurements for the various colors' performances compared to the Rec.709 standard.
| u' (rec.709/measured) | v' (rec.709/measured) | Error | |
| Red | 0.4487 | 0.5231 | 0.0020 |
| Green | 0.1268 | 0.5616 | 0.0020 |
| Blue | 0.1699 | 0.1676 | 0.0112 |
| D65 (white point) |
0.1939 | 0.4637 | 0.0060 |
| Compare the LG 37LH55 to other HDTVs | |||||||
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 |
 |
|||||
| LG 32LG40 32 inches |
Toshiba Regza 40XV645U 40 inches |
Samsung LN40B650 40 inches |
|||||
Shop for the LG 37LH55
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