Do you think Apple would exchange it, considering they claim retention is normal for IPS panels?
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How are your screens in the 5K iMac?
- Thread starter edry.hilario
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Do you think Apple would exchange it, considering they claim retention is normal for IPS panels?
Anyone notice anything with the corners of the screen? Mine is a bit dark in both corners when I have a white solid background wallpaper or use iTunes in fullscreen. Also when I clean my screen yesterday, I saw hair line scratches on the screen about 2 of them (can't feel it with nails so I guess a light scratch) which not see under normal usage. Is it worth get a replacement?? (Today is my last day of return, please I need feedback).
P.S: My screen has no deadpixels as far as I can see and have minimal light bleed (mostly at the top), little yellowish towards the bottom but doesn't bother me.
P.S: My screen has no deadpixels as far as I can see and have minimal light bleed (mostly at the top), little yellowish towards the bottom but doesn't bother me.
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If it's bad enough to fail their checkerboard test like my mid 2012 rMBP was then yes. Considering the problem is mainly isolated to the upper right edge (for now) I really don't know what to make of it.
The display also has some other issues, like a noticeably uneven color temperature and a small bright dot underneath the pixels. I would like to know if you have noticed any of these on yours.
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I think the darker corners are normal for this type of display, they are slightly darker on mine also. As for the scratches, it's your choice if they're worth the hassle of a return. I haven't so far spotted anything like that on mine.
There are some on mine too, they all have some hairline scratches when being produced
Thank you for confirming this. Those scratches and marks only visible under strong lights (i.e flashlights). Return it probably is a hassle and I don't know what the next display is like. Don't want to play the lottery lol.
Oh and upon close inspection, I notice that my screen edges (both left and right) is a bit dark yellowing warmish compare to the rest of the screen. Anyone same here?
Oh and by the way, how is my screen lightbleed (On Max Brightness)? Normal? Under acceptable range? Thanks.
Oh and by the way, how is my screen lightbleed (On Max Brightness)? Normal? Under acceptable range? Thanks.
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I haven't noticed any uneven colors, but I am fairly tolerant to issues like that. Could you describe the issue? What do you mean by 'uneven' - like, the same color is displayed differently on different parts of the screen? I'll take a better look and get back to you on that.
As for retention - I have it in one segment of the screen and so far I only managed to see it after using the retention test with checkerboards. It takes only a minute of the checkerboard at maximum brightness and I can see the pattern, albeit faintly. I can only see it on a gray background. It goes away in about a minute or so. I definitely don't mind it as I never see it in regular work (wouldn't even know it's there if I didn't read about it), but these forums got me worried that things might escalate in time. The problem is, if I get it exchanged, I will be without my computer for at least a few weeks, as we only have authorised service providers here and they have to order the original parts from Holland. Maybe even send the computer there for Apple checkup, who knows? And - I might end up with an even worse screen.
So, my question is - did you exchange your rMBP because you just wanted to be perfect, because it really was problematic for work - or because you were scared it might get worse in time? And do you think I should bother with it, if I don't mind it at all as it is now?
Thanks for any advice.
Again, very common on these panels. Mine is slightly warmer on the right and bottom edges.
I'd say that's acceptable.
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Some parts of the display warmer, some parts cooler, ever so slightly.
The rMBP had image retention from day 1, infamous issue with LG displays on mid 2012 rMBPs. It was pretty bad across the entire display and I would occasionally notice it, particularly on gray backgrounds such as when the machine shuts down. I lived with it for about 4 months until I finally had enough and took it in for the display to be replaced under warranty. They performed an in-store checkerboard test on it and the checkerboard was just barely visible after the test. The display I got must have been a Samsung because I didn't see any image retention after that.
The problem on the iMac is mainly near the upper-right edge and in the upper-right corner, but it's just barely showing on the rest of the display as well. I must admit I'm dreading the hassle of hauling a 27" iMac into an Apple Store myself, so I may wait for the problem to get a bit worse before I do so.
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Oh I heard that some people got the 'assembled in U.S.' ones. Mine is China. Are those assembled in US better? Or they practically the same......
This is my first iMac so I don't have much experience in it but is the yellowish warm type on edges of iMac been around for long time? In advertisement they said something like you would get a bright vivid from corners to corners which apparently not the case...
This is my first iMac so I don't have much experience in it but is the yellowish warm type on edges of iMac been around for long time? In advertisement they said something like you would get a bright vivid from corners to corners which apparently not the case...
i want to note that although I have blacklight bleeding, it is not visible under normal usage (e.g. brightness under 40%) against black backdrops. In darker movies, yes, you can see the bleed once you set the brightness to over 50%.
I was far more concerned about yellowing and overall screen uniformity (e.g. one half warmer than the other)
If anyone is concerned about "screen" issues with the retina imac, I think they are misplaced, because they faulty screens suffer from the exact same symptoms as the previous 2.5k screens. The only thing that is going to rectify that is the underlying technology-- LCD-- which wont change until OLED becomes the industry standard.
standing next to my u2711, I can tell you that although my dell has better blacklight uniformity-- far superior in fact-- retina notwithstanding of course, I prefer the imac's overall screen for two reasons. First being that there is no grainy layer of reflective coating. For my lighting/office situation, the glass panel is superior and further enhances legibility. Second, although my u2711 has better blacklight uniformity, it has far less contrast in general. Watching content makes this very apparent. Blacks are deeper on the imac.
I was far more concerned about yellowing and overall screen uniformity (e.g. one half warmer than the other)
If anyone is concerned about "screen" issues with the retina imac, I think they are misplaced, because they faulty screens suffer from the exact same symptoms as the previous 2.5k screens. The only thing that is going to rectify that is the underlying technology-- LCD-- which wont change until OLED becomes the industry standard.
standing next to my u2711, I can tell you that although my dell has better blacklight uniformity-- far superior in fact-- retina notwithstanding of course, I prefer the imac's overall screen for two reasons. First being that there is no grainy layer of reflective coating. For my lighting/office situation, the glass panel is superior and further enhances legibility. Second, although my u2711 has better blacklight uniformity, it has far less contrast in general. Watching content makes this very apparent. Blacks are deeper on the imac.
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Went in stores to check the iMac on displays and found that they all have same darker warm on the edges of the screen. So like everyone said, it's the LCD and lightbleed that causes it.
By the way, how do you identify that the screen is yellow, warm (with white background??)?? Under normal usage I don't really notice anything that much...
By the way, how do you identify that the screen is yellow, warm (with white background??)?? Under normal usage I don't really notice anything that much...
screen yellowing is exactly that-- whites look yellow.
Usually it is not apparent at first, but if you hold up a piece of paper or another device next to your imac, you will see that "whites" can mean a whole lot of different things across devices.
I once had a iphone that literally looked like there was a layer of yellow piss on top of my screen, that is how yellow it was. Yellowing can also be in certain spots (usually at the edges) or corners-- so it can manifest itself in many different ways.
Like you I can only speculate, but I wouldn't be surprised if it does.
This is true, backlight bleed and uneven color temperature are common on previous models as well. The only difference is on the Retina there isn't a horrible off-axis IPS glow to help hide the backlight bleed.
I am definitely looking forward to seeing OLED displays in the near future.
I checked my colors and they seem even, at least to my eyes. And I continue to be unable to reproduce retention for anything but completely black images and even they are only seen on grey backgrounds. Overall, I'm pretty satisfied with the screen.
As for OLED displays, they come with their own sets of problems. In fact, some OLEDs have burn-in which, unlike retention, is permanent. I'm sure LCDs will solve their issues in time. Screen technology is getting better all the time. But I wouldn't call one tech better than the other. Then again, I'm no expert.
Wahh, so it's suppose to have even white color?? I know that the edges are suppose to be slight yellow and dark. So having portion of yellow on screen, mine is like the middle of screen is yellowish compare to the rest......is that consider bad display???
P.S: I'm newbie to iMac so I don't know much about the display. I don't want to waste time go for replacement and get the same/similar one. Help is really appreciated.
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P.S: I'm newbie to iMac so I don't know much about the display. I don't want to waste time go for replacement and get the same/similar one. Help is really appreciated.
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So it's common????
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Some LCDs have burn-in as well. And saying "I'm sure LCDs will solve their issues in time" may have worked in 2008, but this is 2015 and these issues are still present.
No screen technology is perfect or ever will be. But OLED is still a huge step up from LCD, and I look forward to seeing it on future iMac models.
The display technology has gone a long way since 2008. Viewing angles are much better, contrasts are much higher, resolutions are way bigger, and displays are much thinner and a lot more energy efficient. I'd say the display technology, LCDs included, is advancing quite nicely.
And as long as OLEDs have problems with overcooked colors and sharpness due to pentile RGB arrangements, no thanks. I'm sure one day we'll get to a solution to all issues (LCD, OLED or something else entirely) as both technologies are constantly improving, but at the moment, I don't want OLED for a monitor that I do work on. For games and movies? Sure.
Part of the issue here sounds like viewing angles. It's normal for the edges to look a little bit dimmer/warmer when you're looking at the center of the screen.
hello? anyone? knock-knock.
You can choose to play the display lottery if you want, but my advice is to stop looking for problems and enjoy your iMac.
hello? anyone? knock-knock.
if it is painfully obvious that you have a big yellow dot in the middle of your screen, you should look into replacing it. otherwise i would consider it normal.
My screen runs cool. It couldve run warm, my only real concern with it was really uniformity, which thankfully i have.