LG 34UM95 34-Inch Ultra-Wide QHD Monitor Review

Measurement And Calibration Methodology: How We Test

To measure and calibrate monitors, we use an i1Pro spectrophotometer, a Spectracal C6 colorimeter, and version 5.2.0.1374 of SpectraCal’s CalMAN software.

The i1Pro is very accurate and consistent measuring color on all types of displays, regardless of the backlight technology used. When we just need a luminance value, the C6 works better, especially in low light.

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For patterns, we employ AccuPel DVG-5000 and DVDO AVLab TPG video signal generators. This approach removes video cards and drivers from the signal chain, allowing the display to receive true reference patterns. Connections are made via HDMI.

The AccuPel DVG-5000 is capable of generating all types of video signals at any resolution and refresh rate up to 1920x1080 at 60 Hz. It can also display motion patterns to evaluate a monitor's video processing capabilities, with 3D patterns available in every format. This allows us to measure color and grayscale performance, crosstalk, and ghosting in 3D content via the 3D glasses.

The DVDO generator is a new addition to our lab. It supports resolutions up to 4096x2160. We’re using it to verify the proper signal handling of QHD and UHD displays.

The i1Pro or C6 is placed at the center of the screen (unless we’re measuring uniformity) and sealed against it to block out any ambient light. The AccuPel pattern generator (bottom-left) is controlled via USB by CalMAN, which is running on the Dell XPS laptop on the right.

Our version of CalMAN Ultimate allows me to design all of the screens and workflows to best suit the purpose at hand. To that end, I’ve created a display review workflow from scratch. This way, we can be sure and collect all the necessary data with a concise and efficient set of measurements.

The charts show us the RGB levels, gamma response, and Delta E error for every brightness point from zero to 100 percent. The table shows us the raw data for each measurement. And the area in the upper-left tells us luminance, average gamma, Delta E, and contrast ratio. The individual charts can be copied to the Windows clipboard to easily create graphics for our reviews.

Every primary and secondary color is measured at 20-, 40-, 60-, 80-, and 100-percent saturation. The color saturation level is simply the distance from the white point on the CIE chart. You can see the targets moving out from white in a straight line. The further a point is from center, the greater the saturation until you hit 100 percent at the edge of the gamut triangle. This shows us the display’s response at a cross-section of color points. Many monitors score well when only the 100-percent saturations are measured. Hitting the targets at the lower saturations is more difficult, and factors into our average Delta E value (which explains why our Delta E values are sometimes higher than those reported by other publications).

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28 comments
    Your comment
  • InfinityPixels
    I want this so bad.
    6
  • rantoc
    4k gaming is amazing but demand alot from the computer hardware. Just got a dell 3214 and its hard to describe how much better the picture/emersion is with the way higher definition in the picture quality and still came from descent 2560x1600 before that.

    Playing on "full" hd (LD? Low definition) feels like a joke once you get to know uhd/4k
    -7
  • wtfxxxgp
    Rantoc, what does your comment have to do with the article? Seems to me that you were waiting for an opportunity to brag about your new monitor... Glad you got that out of your system. lol

    With regards to this monitor...I LOVE the looks...very elegant. I think the price tag is fitting as well - it has great resolution and there are still plenty of people who are gaming on 60hz displays that may have just enough GPU power to actually game at this thing's native resolution, albeit with slightly lower settings. GG LG!
    3
  • ubercake
    Great to see larger-sized higher-than-HD res monitors.
    8
  • Nossy
    For a grand, you can get two Asus PB278Q.
    1
  • cknobman
    $1000?

    Next
    -2
  • xPandaPanda
    I have this monitor. Because of it's cinema format, market age, lower production numbers, and early adoption as competitors haven't offered this yet, it is reasonable to think this monitor would cost this much--a lot.

    It would have been nice to include what revision this is, because LG is aware of uniformity issues, which is why the product was largely on backorder and a Rev.2 is in place (but Rev. 2 didn't fix the problem either). My first one had a glaring Uniformity problem, but LG is cool and offered an advanced exchange. The new one has some uniformity problem, but it is very 'livable' and discrete.

    Overall, I am pleased with this product. I have a single 780 to push this and it works nicely. If I got a 4k monitor, I'd have performance issues as the GPU as a whole sector is behind.
    1
  • eklipz330
    as a pc gamer who has been playing for ~15 years, i have to say that this is one of the biggest changes that i've seen on the pc platform. this is a big step towards bringing pc back to relevancy. it's something that will be held to acclaim in productive and gaming environments. in fact, the only thing that i'm surprised that they didn't do is make it curved, simply because when a user sets up a multi-monitor setup, they set the outside monitors at an angle. this makes curved monitor solutions make sense more so than tvs, especially since curved monitors benefit solo users the most. im shocked they didnt make it curved. probably going to cash in next year on that.

    seriously though, pc monitors have been lacking for some years now, falling behind in innovation and technology in general(phones have been jacking up their screen quality year after year, we've been stuck since like 2005). i bet 21:9 screens will have the biggest penetration on PCs.
    6
  • josejones
    Why still the old HDMI 1.4 instead of HDMI 2.0 and DisplayPort 1.2 instead of the new 1.4 ???
    -1
  • Jamie Blumenfeld
    Wish this was 1600 pixels tall. Don't get the fascination with XX:9 at all.
    0
  • mikeangs2004
    don't post spam
    -2
  • Phillip Wager
    i want this bad its a good compromise of between high framerate and high pixel count. honestly for gaming i would just run 2560x1440 but i would run the full resolution for the desktop
    0
  • SessouXFX
    This monitor...it's been at the top of my list for nearly a month now. I know most gamers would prefer to see something with a better aspect ratio, and certainly better response and refresh time. But if you use your monitor for more than gaming, say watching movies, streaming on twitch, and using multiple applications at a time, I'm not sure how you can ignore it as a possibility.
    1
  • photonboy
    21:9 ->
    This is simply a horrible aspect ratio for most people.

    The problem is that if you can see the entire monitor without moving your head then 16:9 is the proper ratio to maximize viewing area such as 3840x2160.

    Ultrawide really only makes sense if it's WIDER than what you can see without moving your head. For that, I'd rather have more than one monitor.

    Ultrawide for gaming makes little sense. Screens need to be curved, or have multiple angled monitors with minimal gap but a single super-wide screen just doesn't work.

    *If you really think about it, it's hard to justify the 21:9 ratio.
    0
  • SessouXFX
    Anonymous said:
    21:9 ->
    This is simply a horrible aspect ratio for most people.

    The problem is that if you can see the entire monitor without moving your head then 16:9 is the proper ratio to maximize viewing area such as 3840x2160.

    Ultrawide really only makes sense if it's WIDER than what you can see without moving your head. For that, I'd rather have more than one monitor.

    Ultrawide for gaming makes little sense. Screens need to be curved, or have multiple angled monitors with minimal gap but a single super-wide screen just doesn't work.

    *If you really think about it, it's hard to justify the 21:9 ratio.

    Don't knock it, if you haven't tried it. Seen the demos of this screen with 21:9, it's quite impressive looking, compared to the other ratios out there. At the very least, it's more compelling than given credit for.
    2
  • Home-World
    What to see the same density as 4k, the ultra wide is the way forward for me buy one instantly
    0
  • moogleslam
    This size/format needs G-Sync and a faster refresh rate, then it would be perfect for my gaming needs.
    0
  • somebodyspecial
    Next time, ask for an ULTRA TALL monitor. So we don't have to scroll too much. You know, just get back to 2560x1600. 1440p sucks and going further with width doesn't help my browsing etc. There's a premium on 1600P right now just because of all this 1440p crap taking over. How many people are using spreadsheets all day? Some width is ok but I'd rather have tall and more monitors to get more width (2 or 3 screens) vs. splitting crap on one HUGE wide screen. Give me 2 or 3 1600p 27/30inchers and I'd be happy to drop different apps on each or run games.

    Impressive LOOKING and impressive FUNCTIONALITY are two different things ;) I'm not saying wide isn't good for SOME applications, but not for the majority of us. Not sure where monitor makers are getting their data, but I don't think they're asking the right people what we users want :)
    0
  • ubercake
    ...

    Anonymous said:
    This size/format needs G-Sync and a faster refresh rate, then it would be perfect for my gaming needs.


    That's what I'm thinking. It seems like the wider the screen resolution the more perceivable tearing is. G-sync would help this situation. Acer is supposed to be releasing a 4K G-sync monitor in the next 6 months or so:
    http://www.geforce.com/whats-new/articles/nvidia-g-sync-monitors-unveiled-shipping-soon-worldwide
    0
  • dehcbad25
    I had the 29UM95, and I am writing from that monitor. Christian...WHAT USERS WERE COMPLAINING ABOUT THE SIZE? I can buy 2 29UM95 for the price of 1 34UM95.
    Granted the 34" will have its uses and applications, but from the UWHD I don't think it will be the most sold. the 27" might be too small, but 29" is perfect for 2650x1080. BTW, I do game in this monitor too, and I work on it TOO
    0