Same issue here. Half of the screen is yellowish, the other half is blueish. The screen color is uneven on white background and black text. As the previous poster mentioned, it's as if the screen is dirty. It's extremely annoying.
Imagine if all 3 million people who bought an iPad were told to take another look at their screens and see if they notice uneven colors, how many would wake up and realize they have defective screens?
picture of the tints
picture of the tints
Here's a sold white image I made that's 1536x2048. Save to Camera Roll and examine.
I am no expert on this issue, but since this has been posted more and more, i figure i'll throw my hat in. I think it is a viewing angle thing. If you view the pinkish section straight on, the colors appear more neutral. If you view the middle of the screen straight on, the edges develop their respective tints - yellow and pink.
Try tilting the screen toward you in portrait and watch the pink creep up the screen. That says viewing angle to me.
No way is it the viewing angle, I have this same issue and it is noticeable from every angle.
Starting to get frustrating. This is my second new iPad. The first one had yellow blotches. I'm not sure if this is due to poor QC as is common with Apple or if it's the case that the retina screen has not been perfected at this large scale.
picture of the tints
picture of the tints
Another person with OCD........Off Color Display.