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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 Sony KDL 46Z5100
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13.Vs Vizio SV471XVT
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14.Vs Samsung LN40B650
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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
Samsung LN46B750
Previous: Page 2
Blacks & WhitesNext: Page 4
Motion
Color Accuracy Summary
• Solid color temperature.
• Good color representation.
• Inaccurate color gamut.
• Testing done using DisplayMate Software
Color Temperature (9.08)
When we calibrate the TVs, we try to get the color temperature as close to the ideal 6500k as possible. We were able to get the LN46B750 to 6936, which is pretty close. Just being able to display this color temperature at one point in the greyscale isn't good enough, however, so we test the entire spectrum to check for variance.
On the graph below, anything outisde of the faintly tinted box indicates a perceptible shift. As you can see, it barely exits this box at all. The LN46B750 has a rock solid color temperature.
| Color Temperature | |
 |
|
RGB Curves (8.09)
The LN46B750 did well on our color representation tests. There were some minor issues here and there, but the main one we saw was the low-end dropping out too soon.
| RGB Curves | |
 |
|
Red has some slight issues with peaking, but they occur so close to maximum intensity that they shouldn't be too much of a problem. The low-end bottoms out far too early, however.
| Red Response Comparisons | |
| Ideal Response |  |
| Samsung LN46B750 |  |
| Sony KDL-46Z5100 |  |
| Vizio SV471XVT |  |
| Samsung LN40B650 |  |
Again, like red, green has very poor representation towards the black end of the spectrum. Otherwise, it was flawless.
| Green Response Comparisons | |
| Ideal Response |  |
| Samsung LN46B750 |  |
| Sony KDL-46Z5100 |  |
| Vizio SV471XVT |  |
| Samsung LN40B650 |  |
Blue takes the worst of green and red and combines them with a wonky curve. It has a hard peak close to max intensity, which is minor, and drops to black before it should.
| Green Response Comparisons | |
| Ideal Response |  |
| Samsung LN46B750 |  |
| Sony KDL-46Z5100 |  |
| Vizio SV471XVT |  |
| Samsung LN40B650 |  |
Color Gamut (3.72)
The colors a TV displays are supposed to adhere to rec. 709, which is an industry-wide standard. This is to ensure all TVs are displaying roughly the same spectrum.
The LN46B750 boldly flies in the face of this standard by trending towards an oversaturated blue that's slighly more towards red than it should be. Greens are also a bit oversaturated, but not significantly. While it's not the worst gamut we've seen, it is much worse than the average TV.
| Color Gamut | |
 |
|
Below is a chart of our measurements, which are sure to delight cinephiles and confuse everyone else.
| u' (rec.709/measured) | v' (rec.709/measured) | Error | |
| Red | 0.4507 | 0.5235 | 0.0006 |
| Green | 0.1362 | 0.5598 | 0.0115 |
| Blue | 0.1648 | 0.2107 | 0.0539 |
| D65 (white point) |
0.1955 | 0.4657 | 0.0035 |
| Compare the Samsung LN46B750 to other HDTVs | |||||||
 |
 |
 |
|||||
| Sony KDL-46Z5100 46 inches |
Vizio SV471XVT 47 inches |
Samsung LN40B650 40 inches |
|||||
Shop for the Samsung LN46B750
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