Good god, who decides what are the good screens what are the bad ones? Do you have any scientific evidence, supply chain evidence or any other evidence besides your "look next to my 6s the 7 screen is more yellow" bullshi* you keep spouting on and on and on and on?
We have scientific lab test from DisplayMate, we have not a single media outlet spouting about this "Yellow" screen issue, apparently soooooo many people have according to you, do you have a seriel number or product code for the two different screens and which are apparently the faulty ones and which are your so called good ones?
And after looking up your post history, somehow you seem to always have a "yellow" screen problem with your iPhones or iPads since 2012. You keep always spouting about "LGs screens are the bad ones!", then you have a thread with "Get your SAMSUNG panel iPad before the LG&Sharp panels are shipping!". Either you are trolling or you have apparently the worst luck a person could have in getting an "inferior" display on the 5, 5s, iPad 3 and 7 , or you should just get your eyes checked...
We have scientifically measured that the iPhone 7s white point is at 6800k and with a variance of 1.0 to the D65 white standard. And the same article wrote that the 6s screens is calibrated too cool and too much on the "blue" side. Just because you can't get your head around that your 7 looks now more color accurate compared to your 6s, those not mean there are faulty iPhones or "you just got lucky with a 'good' screen"...