Quote from the article above:
"Based on these numbers alone I don't see any reason to believe that the LG panel in the new MacBook Air is any worse than the Samsung panel. However I do believe that there may be an explanation for the perceived inferior quality of the LG panel. The LG panel exhibits vertical color/contrast shift more readily than the Samsung panel. Unfortunately I don't have them both here to show you a side by side comparison but the LG panel seems to be slightly more sensitive to vertical viewing angle. As I mentioned in our original 2011 MacBook Air review, the 11 is a particularly tough system to use due to the height of its display. In order to get perpendicular line of sight to the display you need to tilt the display back and your head down. If you're off by just a few degrees you'll start to see color/contrast shift. On the LG panel that classic TN panel distortion seems to come a bit sooner than on the Samsung panel."
Personal experiences confirmed this. I have LG and my friend has Samsung. I've reported my findings on the other thread. Samsung has slightly more even backlight thus a little more viewing angle.
Also through first hand testing/experiences, when you turn the brightness all the way up while watching a video, LG will have the shadow or dark area appeared washed out (became slightly light grey instead of dark shadow), while samsung still remained dark although still a little washed out.
Also noticed that the Samsung panel in the Anandtech test end with model number "04", while my friend's end with "03". Maybe a slightly different panel. Nevertheless, his Samsung panel appeared to be slightly brighter than my LG (uh-oh), maybe by just 1 bar.
Some might find LG display more pleasant due to slightly warmer color, and I find Samsung panel has slightly more vibrant color, a little colder, without the blue'ish tint.
All in all, both a great displays. Differences are minimal and Apple ain't stupid to put 2 panels where 1 is noticeably inferior (although Apple somewhat did that in the past according to owner's reports).