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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  • eallan - Monday, August 13, 2012 - link

    So we're comparing full blow laptops with great specs to monitors now?
  • darwinosx - Monday, August 13, 2012 - link

    Yeah pretty odd comparison. Also Apple laptop displays have gotten great ratings on this very website.
  • Sabresiberian - Monday, August 13, 2012 - link

    So you can't figure out he's just saying that there are high density monitors on the market already, and is just using the Apple Retina display notebooks as an example?
  • piroroadkill - Monday, August 13, 2012 - link

    There are very high res TFT-LCDs. Check out the IBM T220/1, 3840×2400, 22.2", back in 2001...

    Just a very small market for them, or at least there is perceived to be a very small market.
  • gegiarmo - Monday, August 13, 2012 - link

    Why do so many companies refuse to put Displayport in such nice monitors? Does it really cost that much more to add in?
  • jeremyshaw - Monday, August 13, 2012 - link

    I'm guessing, but maybe they reused an existing controller PCB to shave costs. Or an older controller ASIC without DP, that was cheaper.
  • Bull Dog - Monday, August 13, 2012 - link

    yea honestly I started reading the article and saw, 'with no DisplayPort input' and I felt like not continuing to read any further. No DP input, no chance of my buying it or recommending someone else to get it. DP is the future, get with the times.
  • Bull Dog - Monday, August 13, 2012 - link

    but after finishing reading this review it does appear to be a nice monitor for $200.

    My sister purchased a Dell U2312HM for $240 back when Dell had it on sale. She is quite happy with it and for the little extra $$ you get a much more adjustable stand, Display Port, VESA mounts and matte black plastic.
  • tk11 - Monday, August 13, 2012 - link

    You said it... "DP is the future" but the now is still dominated by DVI / HDMI.
  • Senpuu - Monday, August 13, 2012 - link

    A quick wiki search reveals that the first monitor with a DP port was released in January of 2008. Over the intervening years, it's gained rather widespread adoption, to the point that every modern GPU has a DP port. DP provides the most connection bandwidth of any standard, it's adaptable, and it's royalty free to incorporate into your monitor design. It seems a little silly at this point to exclude it from a new product.

    I'd say that DP is the present...

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