Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Got one from Apple the other day (refurbed), had screen uniformity issues. The left side is slightly darker and produced a yellow tint. Had it replaced, same issue, except this time it didn't have a yellow tint, just slightly darker.
 
Even my early iPad Air has no screen issues. Not sure what this is all about? If the screen is bad, take it back to apple where ever it was purchased and demand another.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.