Dear All,
It has bin two weeks now with my rMBP with LG screen. For what's worth it and for those who still doubting to purchase a retina MacBook I like to shed some light on the product.
I have bin using the MacBook over 10 hours a day with intensive work.
Yes it does has IR (and I am convinced all current retina LG screens have it).
How severe or worse is the IR? That is a subjective decisision. In my case, After working for hours in my CAD design program, I can see pretty solid IR (my CAD program toolbar) when switching for example to this webpage: http://daringfireball.net
However in less then a minute it dissapears. In the two weeks it hasn't bin worse. The pattern is the same each time.
Is this ok? In absolute sense, it isn't ok. Do I accept it? Yes I do.
The other side of the coin is (and I don't say this to justify my purchase, or te be in denial), The LG is really an amazing screen. I can work on it all day without any eyestrain. It shows so much detail and information it makes me more productive in designing electronic schematic etc.
The black's are the best I've ever seen from any screen, the same with the whites. The LG is very even and very vivid on color. Totally awesome as well is the amazing viewing angles. When showing work to others multiple people, the screen is perfect viewable from the side angles without any lose of detail and color.
My co-worker had a Samsung rMBP.
This too is an amazing screen with the biggest benefit that it doesn't have IR. Letters and fonts seem to be sharper then with the LG. However, color unioformity with his, seems drastically worse. The right side of his screen has a different color tint then the left. Black's are less deep, and colors seem less vivid. I didn't notice any yellow tint however. Sadly enough too (just like me first Samsung rMBP) his developed a 2 dead pixels in the past 1.5 month.
The Samsung/LG debate, it is more like pick your poison.
My self subjectively speaking, I am super satisfied with the amazing quality of the LG screen. The IR is clearly a design error, since the big Cinema Display (also LG IPS) doesn't have this IR not even after leaving my toolbar on for a day. However the IR doesn't bother me. And whenever IR shows up, it is gone in less then a minute. I can live with that.