24" LCD Round-Up: Acer S242HL, Dell U2412M, And Samsung T24A550
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Page 1:Three 24" LCDs, Benchmarked And Reviewed
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Page 2:Acer S242HL bid
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Page 3:Dell UltraSharp U2412M
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Page 4:Samsung SyncMaster T24A550/T24A350
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Page 5:Display Profile And Tilt
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Page 6:Our Benchmarking Approach
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Page 7:Out-Of-Box Performance: Brightness And Contrast Ratio
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Page 8:Out-Of-Box Performance: Color Accuracy And Gamut
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Page 9:Out-Of-Box Performance: Maximum And Minimum Brightness
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Page 10:Calibrated Performance: Brightness And Contrast Ratio
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Page 11:Calibrated Performance: Color Accuracy And Gamut
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Page 12:Black And White Uniformity, Viewing Angles
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Page 13:Power Consumption
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Page 14:Response Time, Input Lag, And Final Words
Black And White Uniformity, Viewing Angles
Another measurable quality of panel performance is brightness uniformity. Most manufacturers calibrate displays based on the center point of the screen. However, every area of the screen behaves differently. Sometimes you can get better performance in one specific region. As a result, we add a nine-point black and white luminance test to measure the performance of each monitor's panel.
| Acer S242HL bid | ||
|---|---|---|
| White Luminance cd/m^2 | ||
| 168.0450 | 194.6798 | 186.0228 |
| 166.9632 | 192.4567 | 173.1384 |
| 181.5509 | 193.0398 | 193.6341 |
| Black Luminance cd/m^2 | ||
| 0.8134 | 1.0060 | 1.0290 |
| 0.8704 | 1.0659 | 1.0368 |
| 1.0407 | 1.0753 | 1.0571 |
The S242HL bid suffers from poor backlight uniformity. For whites, we achieve ~190 cd/m2 towards the center of the screen. But as we move further away, luminosity falls off, causing a banding effect. The upper left-hand corner produces a slightly deeper black, which throws off black uniformity to a small degree.
| Dell UltraSharp U2412M | ||
|---|---|---|
| White Luminance cd/m^2 | ||
| 159.7259 | 177.4599 | 162.5423 |
| 165.5319 | 202.4358 | 172.7532 |
| 168.5267 | 175.4136 | 173.3799 |
| Black Luminance cd/m^2 | ||
| 0.1023 | 0.1566 | 0.3612 |
| 0.1309 | 0.2031 | 0.1105 |
| 0.4035 | 0.1442 | 0.1619 |
Black luminance is scattered on the U2412M, though the problem is barely noticeable thanks to deep black production. In our opinion, white luminance is more of an issue. Dead center, we're able to achieve 200 cd/m2, but luminance falls off as we move our spectrophotometer further away.
| Samsung SyncMaster T24A550/T24A350 | ||
|---|---|---|
| White Luminance cd/m^2 | ||
| 124.7582 | 146.5855 | 129.2932 |
| 130.5615 | 154.1653 | 126.5797 |
| 135.0890 | 149.5426 | 140.1892 |
| Black Luminance cd/m^2 | ||
| 0.2914 | 0.4161 | 0.2766 |
| 0.3429 | 0.3440 | 0.3071 |
| 0.3331 | 0.2439 | 0.2943 |
As we already mentioned, we had to settle for a lower 150 cd/m2 calibration on the T24A550 because the panel's backlight isn't of sufficient quality to hit 200 cd/m2.
At this lower calibration setting, Samsung offers up decent white uniformity, but we still see very strong luminance towards the center of the screen. Viewing a pure white background or an image with a bright color palate, the problem is quite evident.
Black uniformity is a bit more mixed. There's a strong tendency towards deep black production near the bottom edge of the screen, which skews perception to a small degree.
- Three 24" LCDs, Benchmarked And Reviewed
- Acer S242HL bid
- Dell UltraSharp U2412M
- Samsung SyncMaster T24A550/T24A350
- Display Profile And Tilt
- Our Benchmarking Approach
- Out-Of-Box Performance: Brightness And Contrast Ratio
- Out-Of-Box Performance: Color Accuracy And Gamut
- Out-Of-Box Performance: Maximum And Minimum Brightness
- Calibrated Performance: Brightness And Contrast Ratio
- Calibrated Performance: Color Accuracy And Gamut
- Black And White Uniformity, Viewing Angles
- Power Consumption
- Response Time, Input Lag, And Final Words
I currently own an eIPS monitor, and will never go back to TN.
Also the U2410 frequently goes on sale. I think it is a mistake to buy the U2412 when the U2410 is definitely superior to the U2412 in every benchmark.
Right now the most affordable HIPS monitors with the best performance are the Dell U2410 and the HP 2475W. I think that the HP 2475W has the edge slightly over the 2410. Asus also has put out a fairly good 24" HIPS monitor but the U2410 and the 2475W are better monitors per the professional reviews that I have read.
I own the HP 2475W and it does have beautiful picture. You have to go to NEC at twice the cost to improve on it.
Just reread your comment and my response was probably a little off-base. However, the U2412's predecessor should be better in every way (except possibly response time) since eIPS is meant to be more economical by trading off some of the quality of other IPS panels.
Hello
There is a huge difference between a picture quality HIPS monitor and a TN monitor. I have not seen an eIPS monitor but they seem to be pretty good also from the reviews that I have read.
PS.: Sorry if there's any mistake with my English. =)
Ehr, what...?
Do any of those monitors are capable of 120hz? If no, they are useless for nvidia 3D. 60hz monitors look and feel ugly compared to 120hz. Vsync kills framerates on 60Hz monitors.
Blurring. That’s the feature that makes the deal for me. I hate blurring of moving images. They ruin everything from scrolling web pages, to playing videos, and playing games. The most important benchmark is response time from WHITE TO BLACK, and there is NOT A WORD on this article about it.
Response time analysis is a joke.
Otherwise all the 1920x1080 monitors are nothing more than downgrades.
They're not. They are comparing 3 LCD screens, 1 with an e-IPS panel and 2 with TN panels.
I tell ya what sparky, you write up a comparable review and let us be the judge of who's is better. This article was on a particular segment of monitors. You are referring to a totally different segment.
Didn't your momma teach you, if you can't say anything nice don't say anything at all?
Hopefully I'll get to see the Dell U2211H featured in a future review.
My guess is that the monitors refresh progressively, one line at a time, so monitors with more pixels take longer. I may be wrong, but that's my understanding of it.