NEC EA244UHD Review
by Chris Heinonen on August 7, 2014 2:30 PM ESTAdobeRGB Test Bench
Pre-calibration the NEC AdobeRGB preset is still good but not great. Unlike sRGB the grayscale has a blue-tint instead of a red one. The gamma has the same roll-off in it, and I expect we will see this a lot going forward. Color Checker and Saturations are both very good pre-calibration with most of the issues at the lower light output levels due to some gamma issues. The color points also seem to indicate that we have the full AdobeRGB gamut here.
| Pre-Calibration |
Post-Calibration, 200 cd/m2 |
Post-Calibration, 80 cd/m2 |
|
| White Level ( cd/m2) | 200.35 | 200 | 78.5 |
| Black Level ( cd/m2) | 0.292 | 0.2966 | 0.1152 |
| Contrast Ratio | 686:01:00 | 674:01:00 | 681:01:00 |
| Gamma (Average) | 2.05 | 2.23 | 2.6 |
| Color Temperature | 6750K | 6687K | 6451K |
| Grayscale dE2000 | 2.8 | 0.79 | 1.44 |
| Color Checker dE2000 | 1.53 | 0.64 | 1.09 |
| Saturations dE2000 | 2.01 | 0.77 | 1.43 |
Post-calibration at 200 cd/m2 the grayscale moves to being almost perfect. The gamma is very flat and virtually every grayscale point has a dE2000 below 2.0. The color checker average has fallen to 0.644 and the saturations dE2000 has fallen to 0.77 on average. Again the post-calibration numbers for 200 cd/m2 are just about perfect.
Calibrating to 80 cd/m2 the results are just like sRGB: very good but not as good as 200 cd/m2. Everything is improved, from grayscale to colors, and it measures very well. There isn’t too much to say when there aren’t any large performance issues to be found.
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DanNeely - Friday, August 8, 2014 - link
Win 8.1 does support different DPIs for different monitors. AIUI Metro/WPF apps have the ability to handle it built into their UI library; apps using anything else can either set a flag saying they support per monitor DPI or are locked to render in the DPI of the first monitor they open on and are scaled when moved to one with a different DPI.jay401 - Thursday, August 7, 2014 - link
That sure is an ugly stand for such an expensive monitor.Sabresiberian - Thursday, August 7, 2014 - link
The DPI isn't too high; the applications are simply behind the times. Software engineers should have had this figured out by now and acted so that UHD @ 24" wasn't a problem. And, scaling is only going of become more of an issue if they don't in the next few years.althaz - Friday, August 8, 2014 - link
Agreed. Developers (of which I am one), have the tools at their disposal to make applications scale well. For the most part however, they don't and I'm really not sure why.MikhailT - Friday, August 8, 2014 - link
From what I can see, it has to do with the custom UI frameworks. If you stick with the MS's UI widgets as much as you can, you shouldn't have a problem scaling it. However, if you're using a custom coded one, you're going to have a bad time.In Delphi for an example, some components would render just fine by setting a manifest on it but some components require you to give it custom scaling calculations to make it work. So, you can see different reactions from different components that were coded differently at different eras. For them, they just don't have the time and/or resources to figure it out as the market for folks with HiDPI screens are still a niche.
Penti - Friday, August 8, 2014 - link
Plenty of Windows components still doesn't scale at all except bitmap. If the OS it self can't do it well why should anybody follow?Pinkynator - Friday, August 8, 2014 - link
This is the first time I've ever seen calibrations to 80 and 200 cd/m2. Usually it's 120...Clorex - Friday, August 8, 2014 - link
We already have monitors that do 4k single-stream over DP 1.2; so why are there still MST monitors being released?SanX - Friday, August 8, 2014 - link
I really do not understand people who want 24" 4K monitors and not 30-40". They have different DNA. I do not understand producers either.MrSpadge - Monday, August 11, 2014 - link
That's probably why are not one of the display producers, then. Not everyone has the desk space to put 30 - 40" monitors far enough away so that the viewing experience is pleasant.