I have no doubdt that apple is using different manufacturers displays for the retina MacBooks. The first one i bought was way too dark and text was blurry most of the time. the white was more of a grayish tint. a month later, a replacement has a far superior screen in more ways than one. I was able to compare them side to side. world of difference. It seems there is no way to check display manufacturer now (using terminal). or is there? anyone else have similar experiences with their displays?