As accurate as the post calibration numbers might be, to really be a professional display the Monoprice also would need to display good uniformity. If images looks different depending on where they are on the screen, that won’t work well for serious photo and print work. Before I even run the uniformity data I can see light leakage in all the corners that is very noticeable. I don’t work much against a black background as I do more spreadsheets and word processing, so I don’t see it as easily. If you watch a lot of movies or play a lot of games it will stand out more.

The White Uniformity is OK, but you can see the upper corners are dim while the lower corners are much brighter. The center of the screen produces very good numbers here but once you get to the edges some uniformity issues appear.

Black Uniformity really shows the scope of the issue. The upper corners have some noticeable changes, but the lower part of the screen really shows the problems in the uniformity. Black levels rise to be close to double that of the center of the display. Both bottom corners are bright and the left side has issues as well that can easily be seen. This is unfortunate but also a common complaint people have left in the reviews at Monoprice so I don’t believe it is confined to my sample.

These issues cause a big swing in contrast uniformity as expected. The two bright corners fall below 600:1, 33-43% lower than the center of the screen. The overall uniformity here is pretty poor and is the first place that the Monoprice display really shows its price point.

Those bright corners really cost the Monoprice when it comes to color uniformity as well. Most of the display is excellent, measuring very close to the center, but the corners really fall off. Two of them have average dE2000 errors of 2.0 or higher, so some colors will have visible errors, while the lower-left corner comes in at 3.17. Perhaps that corner will usually hold the start menu or some other, non-important content but it certainly won’t color match the center of the display.

If you’re able to use the Monoprice IPS-Glass Panel Pro and confine your critical work to the center portions of the screen you will see excellent overall results. Even for color critical work you’ll be able to use it without a worry. If you need that performance to extend all the way to the edges of the display as well then the Monoprice is going to fall short.

Bench Performance Data Input Lag, Power Use, and Gamut
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  • Infy102 - Tuesday, October 22, 2013 - link

    Would it not be neat if monitors had ambient light sensors that would automatically adjust the brightness? My Sony TV from 2006 already has such a feature!
  • cjb110 - Tuesday, October 22, 2013 - link

    phones have this, yet there are tons of problems with the various implementations, how fast, how much, user limits etc So I can't see this coming to displays like this, esp as the environmental conditions are more static (and/or controllable) than TV/Phone usage.
  • purerice - Wednesday, October 23, 2013 - link

    The fact that conditions are more static may make for a feature less-commonly used, but would also reduce inaccuracies due to constantly changing light conditions that you have when using a cell phone. Over the course of the average day the light in the room where I work gradually shifts from dark to bright and back to dark before the high-powered lights go on. If a screen like this would adjust with the slowly changing ambient light without me having to adjust any settings on my keyboard I would be thrilled.
  • CaedenV - Thursday, October 24, 2013 - link

    sure, if it is like a phone screen or TV then there could be issues, but if it was software controlled with preset user settings (like a good fan controller) then it would not be an issue.
  • LordOfTheBoired - Tuesday, October 22, 2013 - link

    2006? That's nothing. We had two TVs with this feature when I was growing up in the dark ages of the 1980s. I used to play with them by putting my hand over the photosensor and watching the display go dim and bright again. :)
    It's somewhat absurd that three decades later, the feature is less common than ever. Especially with all the intelligence you could design it with using modern electronics. Put a few photosensors in at different locations to avoid a transient shadow, and let the microprocessor figure out WTF is going on when a shadow passes across the screen.
  • foxalopex - Tuesday, October 22, 2013 - link

    I have to agree it's kind of silly. My Sony VPC-Z11 series laptop from 2010 had autodimming and it worked pretty much perfectly. Fast forward to 2013 and my Asus Tablet sort of has this feature. It will brighten in response to too much light but it won't dimm without power it on and off. I setup an Asus Laptop and autodimming didn't work. My NEC PA242W has this feature as well (and it works) but it is turned off by default because it would likely mess with the calibration on a monitor this precise. So it seems oddly it's not an easily implementable feature.
  • DanNeely - Tuesday, October 22, 2013 - link

    My 2008 NEC 3090 has an auto-dimming feature; but I was never happy with it. Part was that with light coming from 3-5 directions beside/behind me my shadows was complex enough that adjusting my position a few inches generally changed the number hitting it's sensor triggering an adjustment. The bigger problem was that it was one of 3 monitors on my desk; and even if all 3 had the option, unless they had a way to communicate with each other, there's zero chance of them all getting the same amount of light falling on them.
  • Moricon - Tuesday, October 22, 2013 - link

    I have a xrite Colormunki attached to my PC which automatically adjusts my 3 x Dell U2412m. most of the time when i a, working its late at night with minimal lighting so the xrite automatically backs off the brightness for me whilst still keeping it calibrated. Its an eye saver for sure.
  • BrightCandle - Tuesday, October 22, 2013 - link

    Its a problem with a lot of monitors, the minimum brightness is still too high for realistic usage. Once you get to having to turn down the contrast to reduce the brightness somewhat you are already in trouble and the quality of the image really suffers for it.
  • Death666Angel - Tuesday, October 22, 2013 - link

    My Samsung has an ambient light sensor. But I don't use it, on most phones it has been pretty annoying. On my Nexus 7 2013 it does not bother me. But environment light changes a lot more when I use my Nexus than in my room where the PC display is. Also, it doesn't save me any battery on my PC display. :P

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