Many users on Apple Support forums are complaining that their MacBook Pros with Retina Displays are suffering some image burn-in. Users are reporting that persistent UI elements, such as the Dock or the Menu Bar, leave residue of themselves when switched to a full-screen application. The problem can occur in as little as 20 minutes of static screen.
As Retina MacBooks are targeted at web designers, movie makers, and photographers, this issue is causing quite a stir among the users.
Some users say that LG-manufactured displays are having issues while Samsung-manufactured displays are functioning fine. You can check your maker by typing this command into the Terminal app:
ioreg -lw0 | grep \"EDID\" | sed "/[^<]*</s///" | xxd -p -r | strings -6
If the result starts with LP it's an LG display. If it starts with LSN, it's a Samsung. This isn't the first time LG displays on Apple products have caused problems for users. As we've been saying for a long time, Apple should just sue the entire country of Korea.