Bad IPS glow unavoidable?

jamieboo

jamieboo

jamieboo

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I received an Asus MG279Q a few days ago which I will be returning, I should have a replacement arriving some time today.
The reason for the replacement is IPS glow.
I read it's an unavoidable downside to the technology and therefore some glow is to be expected. But I've never had a clear idea of just how much glow is to be expected.
As I said my replacement should be arriving in a few hours. I'm hoping it'll be a better monitor. If not maybe I'll return it again and get another replacement. Or is this whole course of action something of a futile quest?
Maybe this is as good as an IPS panel gets?
Admittedly things look splendid when the image displayed is full and bright colour. As has often been reported it's when there's a dark screen that the problem reveals itself.
Here's a photo of the problem, taken during the day. That glow in the bottom right corner is not a reflection or daylight catching the screen, it's IPS glow.

4bEFiuTl.jpg


Am I deluding myself to think that I might be able to get an IPS without this problem?

Thanks
 
That is quite bad, but out of curiousity, what brightness is that set to?

I have an LG 29UM65 IPS and it's actually perfect in terms of BLB or IPS glow. Just a shame it's ultrawide and I don't get on with it for gaming.
 
Brightness is set way down to 28. More or less following the tftcentral settings recommendation.
So your LG doesn't have a trace of this effect in any of the corners even if the screen is displaying a dark image and your viewing it head on from about 2 feet away?
That's interesting as that would suggest that IPS glow problems are not inevitable.
Hmm.
 
Ah, that is quite low then. I'd expect issues at 50+.

I run my brightness at approx 25.

Yep, I use it to watch movies mostly, so quite dark scenes, never an issue. Usually 2feet away. I'll try and get a picture later when I'm home for reference. I think I was really lucky with this one.
 
That looks really bad, I've had a couple of IPS monitors (2x AOC (23" and 27") and currently a Dell 34") and none of them have been anywhere near as bad as that!
 
Just to confirm something:
when you move your head around (especially looking at the patch from a straight angle), does the light patch disappear? If it doesn't disappear at all, then it's backlight bleed.

Because that photo seems to be taken already from a fairly straight angle, and IPS glow shouldn't be that severe from that small of an angle, and especially not so far into the center. Furthermore, if it's THAT severe on one corner, there should be at least some on the other corners, as well.

Then again, backlight bleed shouldn't continue that far to the center, either.

It's like the light diffuser filter has unevenness on it or something. In that case, the light patch should be visible from all angles. But certainly, that doesn't look normal. Or is the camera exaggerating the situation?
 
If manufacturers used ATW Polarizers it would fix or certainly improve PS glow considerably. Whether it's cost reasons or because they simply don't care, who knows, but they do work.
 
That is mental, it's almost as bad as the first! Out of interest, do you notice it in normal use (i.e. not with a black background)?
 
You can't really notice it if the screen is displaying a bright colourful image, true.
But surely this isn't good enough!
I've scrutinised them both now and I would honestly say that they are identical!
Perhaps I have utterly unrealistic expectations.
But then look at this...

https://www.youtube.com/watch?v=mhpYrw4xnOk

His is pretty near perfect, right? So good ones obviously exist!
 
I had a Dell U27 something HM and I sent back as the bottom right had a blue glow and right was yellow. I got an AOC monitor in the end which had very minimal glow in comparison and was cheaper. Yours is definitely a bad case.
 
That is indeed worrying. If the camera is not exaggerating the situation severely, then that is downright appalling. Some amount of IPS glow is unavoidable, but that is way over the top.

It's also quite disappointing to confirm that even Asus is one of those manufacturers that apparently cherry-picks their review samples (not that they are the first nor the last to do this). I thought this would be a good (and relatively cheap) model to recommend for people looking for 1440p gaming monitors, but I think I'll refrain from that, for now.

If you still have the option, I would certainly return the unit and ask for a refund. Well, there is a slight chance that you'll get a better sample if you keep replacing the unit, but I wouldn't say it's worth the chance nor the time spent.

As a fair warning, if this flaw becomes more wide-spread, I have a bad feeling about Asus following Dell's footsteps from a couple years back (U2713HM with backlight bleed issues), and soon modifying their return policies to refuse returns and refunds on this basis, because they will get scared this will become a huge bill for them. Alternatively, they will start cutting corners and simply re-sending returned units until someone accepts them.

And so comes the next question: did it seem like the newly arrived unit was a returned/refurbished one, or a totally new one? Actually, take a notion of the serial number on the monitor before you return it. If more people start returning them, we can confirm whether they're just circulating them among returns.

I don't want to spread FUD or act as a fear-mongerer, but this doesn't look promising. Hopefully it's an isolated case or a bad manufacturing revision, but I would cover my own bases before the crap hits the fan.

Ps. If there is an Asus representative reading this, and we're hitting too close to base, I would recommend (or at least consider) taking a hit on the flawed units and properly refurbishing them, modifying the manufacturing process (or the flawed components), and start regaining the PR these flawed units might entail.
 
Hmm, that image doesn't look bad at all. But I guess the question remains: how much do the earlier photos exaggerate the real situation? Because while it should indeed appear more profound in darker backgrounds, it still shouldn't be that severe with those angles in a bright room.

Usually, in a bright room, the reflections are way more distracting than a normal backlight bleed or IPS glow.
 
I would definitely say that the problem is more conspicuous on camera compared to the naked eye.
Evsknight, would you be able to take a picture of your monitor displaying a dark screen from your normal viewing position to compare with mine?

Thanks.
 
Can you see much glow with the space picture in your video (as it looks bad there, but then not sure if this is the camera exaggerating the effect)? If you can't, and that seems to be a fairly good example of where you would want minimum back light bleed, you might be alright as is.
 
This is why I am giving up on IPS and moving to VA.

Any games, films or tv shows with dark scenes look awful. :(
 
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