Dell U2412M Color Uniformity and Gamut

Of course if only the center of the panel looks good, it’s going to make images look bad with color shifting and other undesirable results. Taking a set of nine measurements around the screen lets us evaluate the screen uniformity.

LCD Color Uniformity

There is a bit of a shift around the screen that is most noticeable in the corners and with the grayscale. The average dE for all the measurements manages to stay below 3, but all the blue swatches stay above 3 across the display. At a couple locations certain colors manage to rise above 3, but for the most part it is just blue. The rise in the grayscale is the most noticeable thing, which is what causes the high average dE results in the corners.

LCD Color Quality

The Dell has around 70% of the AdobeRGB colorspace, which is close to the sRGB standard. We expected this as our blue dE values were so high and if we could do more than 70% of the AdobeRGB gamut we would see more accurate results there. However, I don’t think anyone considering the U2412M with it's high blue dE values will reject it because of its slightly smaller than sRGB gamut.

 

Dell U2412M Color Quality Dell U2412M Brightness and Contrast
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  • Touche - Wednesday, February 29, 2012 - link

    +1000
  • cheinonen - Wednesday, February 29, 2012 - link

    Measuring the refresh rate of the backlight is on the list of things to try to do going forward. It should be added soon, though I'm not certain if it will be in the next couple of reviews or not.
  • Zolcos - Tuesday, February 28, 2012 - link

    It's reassuring to see this product, not just because of 16:10 but other good-yet-all-too-rare choices like anti-glare, displayport, and a relatively non-shiny bezel.
    Personally, I'm still holding out for 120hz at any resolution better than 1080p. If a monitor with the exact same feature set and resolution as the one in this review came out with 120hz, I'd literally buy it today, even if it was TN and cost twice as much.

    That's my realistic side anyway. I still have dreams of 1920x1440 since widescreen (while great on its own) is an inefficient use of space for multi-monitor setups, but that's another debate entirely.
  • Zds - Tuesday, February 28, 2012 - link

    The main advantage of the HP unit is not S- but 8bit colors. IPS vs. S-IPS is not crucial, 16.7M real colors can be.
  • Oxford Guy - Tuesday, February 28, 2012 - link

    6-bit vs. 8-bit isn't the whole story, either.

    The other part of the story is how wide a gamut the backlight can provide.
  • James5mith - Tuesday, February 28, 2012 - link

    "I can criticize the black uniformity as the corners were a bit bad, though being a lot better in this area will likely require going to an LED backlighting system or the emergence of OLED displays for the desktop, both of which are very expensive compared to this."

    http://accessories.us.dell.com/sna/productdetail.a...

    First line of the information: "Enjoy widescreen performance, any way you want it. With a 24" 16:10 panel, IPS technology and LED backlight, the U2412M provides a brilliant view, plus amazing adjustability to suit any style."

    So the LED backlight isn't helping it to get any better. It's already there, and apparently not very good.
  • JarredWalton - Tuesday, February 28, 2012 - link

    The point was to use something other than edge LED backlighting, though that's not entirely clear from the wording. I'll see if I can fix that...
  • Zoomer - Tuesday, February 28, 2012 - link

    How about reviewing this or a similar monitor? Now that is real bare bones, and real cheap. $400 or $250 for a 27" H-IPS if AT has some friends in Korea.

    http://www.overclock.net/t/1215866/reviewed-400-25...
  • frombauer - Tuesday, February 28, 2012 - link

    Would this be better in lag and response time compared to the Dell 2209WA? I own this one, and it's good enough for gaming to me. But I wanted more resolution.
  • Touche - Tuesday, February 28, 2012 - link

    Get a Sony GDM-FW900 :)

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