Currently Being ModeratedMar 26, 2013 1:28 PM (in response to fco. javier)
I have an early 2009 24" iMac and experience heavy image retention after displaying a static image for a few minutes. It has been getting worse lately. LCD panels do get IR. This is normal, and Samsung's screens are not the exception like some people seem to be suggesting. Granted, I can't say anything about the level of IR on the new iMacs.
It's burn-in that is impossible on an LCD (IR = temporary; burn-in = permanent).
Currently Being ModeratedMar 28, 2013 9:20 AM (in response to K_arm)
"LCD panels do get IR. This is normal, and Samsung's screens are not the exception like some people seem to be suggesting."
None of the Retina Macbook Pro owners with Samsung LCD panels have issues with image retention. Can you provide some examples of iMac's with Samung panels that have IR?
Currently Being ModeratedMar 28, 2013 3:19 PM (in response to K_arm)
Yes I can; my 2009 iMac.
The intensity of the IR may vary, but it can happen. Read about Image Retention or Image Persistence with LCD.
Hmmmm. Well, it appears that Samsung may have solved the issue on their new panels. At the very least, they seem to have a better handle on this than LG does. It would be interesting to see the LCD-manufacturer breakdown for 2012/2013 iMacs with IR: Samsung versus LG.
Currently Being ModeratedMay 3, 2013 8:16 AM (in response to mastro)
I would say that most do not or the web would be filled with complaints like the rMBP. Even on the unofficial forums, the subject is barely brought up. I am very critical of Apple and their LCDs, the situation with the Retina MBP, the horrible LG display in my MacBook Air... but my 27in iMac is flawless and awesome... it had IR two times, one week after I got it and then never again. I think it might have been related to a bad APC, which died the same week. Those with IR can get it fixed or replaced from Apple Care, so griping here is good for sharing, but in the end you have to get service from Apple Care because they will take care of you if you present your case to them.
Currently Being ModeratedMay 16, 2013 7:49 PM (in response to mastro)
How obvious is the dead pixel?
1. Screaming at your face as you work normally.. then return it
2. You have to run a series of tests to see it, live with it
IMHO.... Good luck either way
btw... no IR here on late 2012 iMac, love it!
Currently Being ModeratedMay 21, 2013 4:54 AM (in response to fco. javier)
I just bought iMac 27 Core i7 3.4 two weeks ago. I'm really disappointed with IR (image retention) LCD problem and also yellow screen issue confirmed after reboot. I had yellow screen problem with Late 2009 iMac 27 inch model and my LCD screen was replaced 3 times by Apple resellers in Pakistan.
I really hate that they will open new iMac that's born 2 weeks ago to replace the LCD. I wanted to get my full refund as I've already experienced from 2009 to 2010 with Dead Pixels, Yellow Screens and 2012 now its IR (image retention) + yellow screen problem that I believe still not fixed or please let me know if its has been fixed in last 2 months I mean in new marketing models lot might be (March, April or May 2013)?
One of my friend is PC user and always suggest me to switch on PC from MAC... iHate PC iHate MessySoft... you know what I mean.
I sold out my iPad3 and it was replaced 2 times with new one but I have'nt opened 3rd replaced iPad and sold out without touching it. I knew I will face the same problem again, it has speaker noise/crackling issue. Now, I'm on hold and waiting for iPad5 but... new device new problem??? FYI, my MBP 15inch late 2008 model is still working fine wow.
So, iLove iHate Apple!
Currently Being ModeratedMay 27, 2013 12:52 AM (in response to thelonius70)
No, I was using it for one month and I hadn't noticed it before. It was just a bad panel (blamed LG for that I suppose) and they just changed the screen. I hadn't noticed any visible sign that the panel was changed. They did a great job.
Currently Being ModeratedNov 11, 2013 7:43 PM (in response to fco. javier)
My Temp Fix/Reduction for Image Retention
I recently purchased a refurb iMac 27 2012 3.4 i7. As soon as I started using Adobe apps like photoshop and Indesign I noticed the problem.
I have spoken to apple and they will replace the faulty part. I can get it done within 3 day turn around in my area.
I noticed it's worse when the brightness is up at maximum.
I have been testing ways to recuce the ghosting/image persistence/image retention/burn-in.
In preferences/Displays turning off 'Automatically adjust brightness' and lowering brightness to about 4 bars from the max. seems to make huge big difference for me. It's actually quit bareable at this level.
hope this helps