HP 2311xi - Color Quality and Color Gamut

Straight out of the box, I set the color mode on the 2311xi to sRGB mode and then set the brightness level to 200 nits. I didn’t do any other adjustments, and I also didn’t use the HP .icc profile, as HP only allows this to be downloaded from their website as a Windows .exe file and I do the monitor testing on a Mac. Since this is a file that can be used on all OS platforms without an issue, I see no reason to only have the download as an .exe file, so I just decided it was appropriate to not use it.

Despite this, the performance of the 2311xi in sRGB mode was very good. The average dE on our Gretag Macbeth test was 5.87, which is the second best monitor out of the box that I have tested so far. The grayscale performance was pretty good, and color performance was even better. Since most users that purchase a $200 display are not going to be calibrating it I imagine, being this good out of the box is a big benefit for users. You’ll get better color than almost any other display without any adjustments, and that’s a really nice thing to see.

Color Tracking - XR Pro, Xrite i1D2 and XR i1DPro

Since the HP was so good out of the box, I expected it to perform really well once it was properly calibrated. After using ColorEyes Pro, with a target of D65, 2.2 gamma, and 200 nits, we see that the average dE drops down to 1.74. This is good but not exceptional. The most noticeable difference is that the grayscale goes from being one of the best to one of the worst. It’s still at 1.0 or below, so the differences are incredibly small, but other monitors do wind up being better after calibration.

Color Tracking - XR Pro, Xrite i1D2 and XR i1DPro

Targeting 100 nits instead of 200 nits for calibration, the results were almost identical. Grayscale errors were about the same, and so were the numbers for the colors. With how consistent the contrast ratio numbers were for different light output levels, I would expect the color results to be the same at different levels of light, and it proved to be that way. The HP was fantastic out of the box, but only decent once calibrated. I place more importance on the out of the box numbers here because of the target audience for the display, so I’d say it’s a very good performer in that regard.

Color Tracking - XR Pro, Xrite i1D2 and XR i1DPro

The color gamut of the HP 2311xi can only be sRGB, as white LEDs can’t do greater than sRGB; you need to move up to RGB LEDs for an AdobeRGB or larger gamut. Right around what we would expect, we see the 2311xi can manage 69% of the AdobeRGB gamut, very close to what it is specified for. This explains the issues with certain blue tones that fall at the edge of the sRGB space on the Gretag Macbeth chart as well, since it can’t produce those at all and can only try to come close.

LCD Color Quality

HP 2311xi - Brightness and Contrast Ratios HP 2311xi - Display Uniformity
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  • fishman - Monday, August 13, 2012 - link

    Sorry, but a 16:9 monitor? Great for a TV, but not for a general purpose computer.
  • kyuu - Monday, August 13, 2012 - link

    And here I was hoping we'd get one monitor review without 16:10 snobs popping up...
  • seapeople - Monday, August 13, 2012 - link

    Ok, then go buy the 1200p monitor for the same price.

    Oh wait.

    You can't.
  • risa2000 - Monday, August 13, 2012 - link

    I guess I might have googled it, but I wonder why it is not mentioned anywhere? Are there really no other panels than 60Hz nowadays?
    I am working now on old 19" ThinkVision (excellent LCD, with 75Hz refresh) and 60 to 75 makes difference.
  • kyuu - Monday, August 13, 2012 - link

    Yep, monitors are 60Hz pretty much exclusively nowadays, unless you're looking at monitors meant for 3D that do 120Hz.
  • cheinonen - Monday, August 13, 2012 - link

    Unless it is mentioned, I would assume 60Hz for a refresh rate. With the use of an HDMI input, and not specifically being an HDMI input that supports beyond 1080p, it's likely the internal electronics only support a 60Hz input anyway, even if the panel could support higher.
  • Jumangi - Monday, August 13, 2012 - link

    Bestbuy has this on sale for $169. Yea its got compramises but for that price the basic display you get is a darn good deal.
  • jaydee - Monday, August 13, 2012 - link

    Here are all the 23" IPS monitors that I've seen (there could be more) with features listed. It would be great to to get a roundup of all of them... AT has already reviewed the top two on the list.

    AOC i2353ph, 1080, DVI/HDMI, no USB, speakers
    HP 2311XI, 1080, DVI/HDMI, no USB, no speakers
    NEC EA232, 1080, DVI/DP, no USB, speakers
    Dell U2312HM, 1080, DVI/DP, USB hub, no speakers
    LG IPS231B, 1080, DVI/HDMI, no USB, speakers
    LG IPS235V, 1080, DVI/HDMI, no USB, no speakers
  • EddieBoy - Monday, August 13, 2012 - link

    I think this is a good idea. How about putting together a round up of displays so it is easier to compare their pluses and minuses?
  • mikato - Thursday, August 16, 2012 - link

    IPS monitor roundup! There are so many people out there with their eye on IPS monitors, but since they cost a bit more, these people are careful and do their research. They would definitely like a roundup like this.

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