No, you should take it back to an Apple store for a replacement. End of story.
Kind of hard to do when after 7 display replacements with the LG panel in my Retina Macbook Pro, the store tells me this is "normal display characteristics".
I had to drive across town to the other Apple store where a manager on duty agreed that displays should not have image retention after 2 minutes and knew how to get the Samsung display I wanted by looking it up in the web system. Most people aren't that lucky and basically Apple was giving them the big "lol you're screwed".
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What I am saying is that if you are to happy after 13 replacements . . .maybe it is not the product that is defective
It's no coincidence that these people got 13 LG panels and then a Samsung panel and they were happy with the Samsung panel.
It's also no coincidence that all display replacement parts are all
NOW Samsung parts.
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Op, how long was your settings page on screen? I had IR when a black and white clock was left on for a few minutes on my ipad 3, but it went away soon after.
Probably like 10 minutes. I went downstairs to brew a cup of coffee.