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

Results: Viewing Angles And Uniformity

The more monitors we test, the more we can see that off-axis viewing performance is dependent not only on pixel structure (IPS, PLS, TN, etc.) but the backlight technology as well. And we can see that the anti-glare layer makes a difference too.

When a monitor is as wide as the 34UM95, off-axis performance needs to be top-notch, and it is. These are the best horizontal viewing photos we’ve ever seen. Aside from a little light reduction, the gray step pattern looks the same from a 45-degree angle as it does head-on. Meanwhile, in the vertical plane, there is a red shift along with lower brightness and a loss of detail in the darker steps. Still, I'd say this represents a step forward for IPS panels in general.

Screen Uniformity: Luminance

To measure screen uniformity, zero and 100-percent full-field patterns are used, and nine points are sampled. First, we establish a baseline measurement at the center of each monitor. Then the surrounding eight points are measured. Their values get expressed as a percentage of the baseline, either above or below. This number gets averaged. It is important to remember that we only test the review sample each vendor sends us. Other examples of the same monitor can measure differently in this metric.

First up is black field uniformity.

In excess of 20 percent isn't the worst result we've recorded, but it is higher than almost every other monitor we've tested. The culprit is along the bottom edge, where hotspots are fairly easy to see. There are also light areas at the top edge. Obviously, that is where the backlight LEDs are located.

Here’s the white field measurement:

Fortunately, the above result doesn’t translate to the white field measurement. In fact, as brightness increases, the screen appears more and more uniform.

Even though these tests show a weak point in the 34UM95, it doesn’t diminish other areas where the display performs well. Overall image quality is still very good.

Screen Uniformity: Color

To measure color uniformity, we display an 80-percent white field and measure the Delta E error of the same nine points. Then we simply subtract the lowest value from the highest to come up with a result. Smaller numbers mean a display is more uniform. Any value below three means a variation that is invisible to the naked eye.

Almost all of the monitors we measure have no visible color shift across the screen; LG's 34UM95 is no exception. In fact, only the bottom-right corner shows any significant difference in color accuracy. Even that error wasn't visible to me.

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  • 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