There's lots of people whose LG screens look great, and some with Samsung screens that have problems. People just keep propagating the myth that all LG screens are defective, so others go in looking for problems. I really am curious...if the problem only shows up when you do something specific that you never do in day-to-day usage, why return it? Are you afraid the problem will get worse later? If you start noticing it in your day-to-day usage, why not take it in at that point?
Exactly: When the Late 2011 Air was launched there was literally a frenzy over the display, due to there being two venders LG Phillips & Samsung. Some were even posting here on MacRumors how they could return their new Air with an LG display, before the machine had even arrived. Ironically when AnandTech reviewed the display`s they recommended the LG by a hair surprise, surprise the hysteria evaporated instantly. If by any means LG display`s are inferior to Samsung`s Apple would never use them in the first place.
If one vender`s quality was significantly inferior to the others, Apple would simply instruct them to fix it, or they would be up for replacement. Without knowing production numbers it`s not possible to exactly quantify, however i would suggest the primary reason you see more post regarding LG display`s is that LG is supplying the majority of display`s. I simply base this assumption on common sense if there was a quality issue with LG, Apple doesn't strike me as having a great deal of tolerance in such matters, especially with their "flagship" portable which very much has to succeed.
AnandTech`s review has nothing other than praise for Apple and LG for bringing this display to market, the Samsung is equally a superb display, it`s also likely that many whom are generating these rumours don't even own the hardware. If during your normal workflow you observe no issue, there is no issue, point being if you want to make something fail you can by doing tests out with normal usage
As a community don't allow baseless posts to sway your decisions on returning perfectly good systems in the hope of some visual nirvana. If your display has issue Apple will fix it or replace the machine, however if you are in false hope of receiving a superior display by getting a system with a differing vender, you are only wasting your time along with many others and risk actually receiving a defective system.
As the individual you must filter the content of the internet very carefully, everyone is a "Pro", everyone the "expert", for the most part they are not, some are well informed, the majority are not. If you need help to make a significant purchase, or qualification on hardware, wait for a recognised source, not the kid with 10 minutes hands on in Best Buy

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Hey,
So I plan to return my rMBP tomorrow and hopefully get one with a Samsung display. 2 Questions:
1. Will I have to make an appointment at the genius bar or will anyone of the staff at the store help me?
2. The only way you can see the IR is by doing the checkerboard test and Im worried that they won't replace it because it doesn't show up in daily usage.
I am still within the 14 days if that makes a difference.
Thanks.
Plain and simple you have no issue, unless your normal daily usage requires you to sit and stare at checkerboards while switching to a specific shade of grey all day. Such tests are not indicative of normal use and should as such be taken with a "pinch of salt" what will you do if the replacement is worse, has dead pixels, light bleed, uneven coloration and heaven forbid it be another LG. See what a can of worms the rumour mongers open...
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This.
Seems now people just immediately reject the LG.
Same nonsense as the Late 2011 Air`s and no doubt in time a reputable source will do a comparison and likely state that both panels are only subtly different...