LG 34GK950G, 3440x1440, G-Sync, 120Hz
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just to confirm, i am seeing the same thing reported by krzychowiec who has just received the G model. I've re-run tests on both the F model and G model just now and am seeing the same characteristics reported by krzychowiec. The level of backlight bleed and clouding is likely to vary by sample, but the underlying characteristics of the panel behavior shouldn't change much. You can't "cherry pick" out a viewing angle characteristic of the IPS matrix and pixel structure
The glow on dark content is more noticeable when viewing the screen from the right than it is viewing it from the left. I've not seen this difference before in my testing of other screens in the past, although like i say it's not something i've deliberately looked out for. I will do so from now on! From the left hand side, the IPS glow is fairly low, and has a more purple hue to it, being less white/pale than a lot of older generation IPS ultrawide screens. that is what we reported on in the review originally.
However, when you view it from the right hand side the IPS glow is more pronounced, having a whiter/more pale glow to it. I've just updated the review of the F model with further info and photos to demonstrate: http://www.tftcentral.co.uk/reviews/lg_34gk950f.htm#viewing
I will ask you the same. Can you see it when you sit straight in front of the monitor?
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This is the problem, that you can. Viewing angle when not sitting strait is not very relevant.
Right hand side is a bit better in reality, but left hand side is looking exactly like this.
This is a fairly bright scene, on UC98 I wouldn't be able to catch any glow on picture, but like I said before 950G is behaving like these old 3800R screens, where you didn't even need dark scene for glow to come out.
Right. I was hoping for it to be okay from straight ahead but that is unbearable. Thank you.This is the problem, that you can. Viewing angle when not sitting strait is not very relevant.
I'd be really unhappy with that.
Hard to believe it left the factory in this condition.
Really poor show from LG.
Life would not be Good with that monitor .
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I am going to return it this week so this isn't really my problem, but I am upset by these glow issues because this t is otherwise a really good display, bright, vivid, very uniform with all colors, zero DSE, sharp font, G-sync, good design. Everything is very good but this single issue with the glow is ruining everything and makes display unusable. Such a great display ruined.
People are getting really carried away with this. There’s no fault here, no “problems”, it’s just a characteristic of nearly every IPS panel on the market today. They all show levels of pale glow when viewing dark content from an angle. Viewing this screen from the left shows a bit less glow than some other popular ultra wide IPS panels. Viewing from from the right seems to be more similar to those other ultra wide IPS models overall. So if you want to be really picky, it’s probsbly still better overall than other similar screens like the Dell.
If you set the screen to a sensible brightness level (120 CD/m2 instead of 300 odd) then viewing the screen from head on with normal content it is hard to see this glow in my opinion. On darker content it will be more noticeable but this is inherent to pretty much all IPS panels today. Where backlight uniformity and bleed varies, it may accentuate the appearance of glow in some places and on some samples, but uniformity will vary from one sample to the next
This is the problem, that you can. Viewing angle when not sitting strait is not very relevant.
Right hand side is a bit better in reality, but left hand side is looking exactly like this.
This is a fairly bright scene, on UC98 I wouldn't be able to catch any glow on picture, but like I said before 950G is behaving like these old 3800R screens, where you didn't even need dark scene for glow to come out.
OH.
MY.
GOD.
@Daniel - LG
The F and G samples I have look nothing like that in practice and real use. That photo looks quite over exposed to meThis is the problem, that you can. Viewing angle when not sitting strait is not very relevant.
Right hand side is a bit better in reality, but left hand side is looking exactly like this.
This is a fairly bright scene, on UC98 I wouldn't be able to catch any glow on picture, but like I said before 950G is behaving like these old 3800R screens, where you didn't even need dark scene for glow to come out.
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This is exactly why I said earlier to properly calibrate the screen to 120 luminance (among other things) and then complain about BLB and glow if there is any. Of course it's going to be bright and washed out when the screen is twice as bright as it should be. Do people really buy $1500 monitors who can't afford a $200 X-Rite calibrator (or something similar)?
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Also the photo is still not centered, its an upper left angle still.
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While backlight bleed can be lessened by decreasing brightness (there is no major backlight bleed on my 950G as shown by the pictures posted before), glow is an issue with viewing angle and you won't fix it by lowering the brightness. At least not significantly. Like I said I am browsing the web with 0% brightness setting and glow is still very visible on darker backgrounds like YouTube dark theme, even when viewing up front. Also I have tested 6 ultrawide models (Dell U3415W, Samsung s34e790c, LG 34UC98, LG 29UC88, Samsung CF791 and now LG 950G) and glow on 950G on the left side of the display (so looking from the right) is by far the craziest I have seen, even Dell U3415W wasn't that bad, and it was really bad, regardless of brightness.
But I am not really arguing about anything, when people get their units they will judge for themselves. I just shared what I got with pictures that are 90% accurate to the real state of the display and with detailed description of what I saw, almost everything of that being very positive, and whats most important compared side by side with my previous display that is using older panel and with experience from testing other ultrawides. How does that compare with some guy with no actual unit on hand appearing and saying that calibration of factory calibrated screen is going to remove inherent flaws of the technology, you have to judge for yourself, it is really none of my business what you will do with all of that.
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Anyway, from things that I didn't cover yet I can confirm that 950G does not have any image retention like some UW3 models, including 34UC88 and UC98. 10 minutes of this test didn't show any issues.
I will probably find some other less important things along the way because I will keep 950G until Alienware arrives so I can see how much this out of the box inaccuracy and lack of gamma controls of Alienware is really affecting the experience. And if the glow characteristics are closer to the UC98 or to the 950G.
It would be a big win if Alienware is good enough because it is much cheaper, but there are many question marks. I bought 950G for much higher price to get the best possible and not to compromise, so thats kind of going backwards, but in view of circumstances there is not much else I can do, there aren't many alternatives.
I haven't seen UW4 panel yet. Is it just 120 Hz version of UW3 or there are other changes?
But I am not really arguing about anything, when people get their units they will judge for themselves. I just shared what I got with pictures that are 90% accurate to the real state of the display and with detailed description of what I saw, almost everything of that being very positive, and whats most important compared side by side with my previous display that is using older panel and with experience from testing other ultrawides. How does that compare with some guy with no actual unit on hand appearing and saying that calibration of factory calibrated screen is going to remove inherent flaws of the technology, you have to judge for yourself, it is really none of my business what you will do with all of that.
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Anyway, from things that I didn't cover yet I can confirm that 950G does not have any image retention like some UW3 models, including 34UC88 and UC98. 10 minutes of this test didn't show any issues.
I will probably find some other less important things along the way because I will keep 950G until Alienware arrives so I can see how much this out of the box inaccuracy and lack of gamma controls of Alienware is really affecting the experience. And if the glow characteristics are closer to the UC98 or to the 950G.
It would be a big win if Alienware is good enough because it is much cheaper, but there are many question marks. I bought 950G for much higher price to get the best possible and not to compromise, so thats kind of going backwards, but in view of circumstances there is not much else I can do, there aren't many alternatives.
I haven't seen UW4 panel yet. Is it just 120 Hz version of UW3 or there are other changes?
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It would be nice once you get your cable to test if SCAN lines are still present when G-Sync is enabled and the monitor is overclocked. The easy way to test this is with G-Sync pendulum demo and set the frames to fluctuate from 60 to 120 with G-Sync enabled. If any present they should appear in the upper portion of the screen.
UW4 is 100hz native panel, overclocked to 120 with DP 1.2 Gsync module. So there are different lotteries you need to win with the alienware...
<sigh> So frustrating. As an owner of 2 24" Dell IPS panels, I've never seen/experienced bleed or glow anywhere near these levels (in fact I basically have zero of either...) so the whole topic has me super nervous. Will be interesting to see the TFT followup and, even more interesting to see PC.Monitors video reviews...
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I've always wondered why manufacturers don't do this, at least on high end IPS panels such as this one which clearly aren't destined for budget monitors. I'm assuming it must be cost related, but they'd sell more monitors and have far less returns if they did. Unless it's exhorbitantly expensive somehow, but if it's just a 'film' layer, is it really that cost prohibitive? Maybe they just don't see the point and it's more a cost saving measure than one that would make a monitor unprofitable. Every few pennies saved in production cost per panel equates to large sums of money overall I guess. It is shame though.
On my 38UC99 there's a huge difference in how noticeable the glow is depending on high you have the brightness. 70% is far too high for me, I run my 38UC99 at 17%. The angle at which the pics were taken are likely greatly exaggerating the glow too.
Basically if I up the brightness and take a pic of this 38UC99 the glow is similarly bad (just without that purple hue), but at my everyday settings and looking at the monitor straight on the glow is nowhere near as noticeable. So eh, I'll reserve judgment until I see one in person or someone posts a pic of settings closer to mine.
Basically if I up the brightness and take a pic of this 38UC99 the glow is similarly bad (just without that purple hue), but at my everyday settings and looking at the monitor straight on the glow is nowhere near as noticeable. So eh, I'll reserve judgment until I see one in person or someone posts a pic of settings closer to mine.
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I will test that today when DP cable arrives and then next week vs Alienware, because it looks like it will be delivered on Friday at best and most likely Monday.
Mostl likely the gain in sales is not justified compared to costs. People tend to look at few opinions on the internet and think that this is a representative of the entire market, while in fact the percentage of customers who bought a display and are making comments about it on the web is probably like 1% or less. And now divide that by 10 to get the amount of people who actually know what they are talking about. So for manufacturer it is completely unjustified to invest in improving things that 99% of the market is not even going to be aware of, for whatever reason there might be in the world for not being aware of major and obvious flaws of the display.
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Here is a video with glow at 20% brightness (130-140 nits) and 70% contrast (you can see OSD on video). Made with LG V30, manual mode, enough adjustments to make a video accurate and representative of real state:
Now compare with UC98 (35% brightness, so also around 130 nits)
And now picture comparisons based on the videos:
So here is your "normal glow just calibrate factory calibrated display and there won't by any glow"
Now compare with UC98 (35% brightness, so also around 130 nits)
And now picture comparisons based on the videos:
So here is your "normal glow just calibrate factory calibrated display and there won't by any glow"
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