"My replacement iPhone 7 screen seems washed out?"에 답변I had my cracked iPhone 8 Plus screen replaced with an aftermarket screen today and I had the same issue where the new one looked bluish. I did some digging and learned that the auto-brightness and “True Tone” features are disabled on iOS 11 and 12 when you replace the screen, even if you replace it with a new certified iPhone screen from an identical model, unless it is calibrated by a proprietary tool (of course, thanks Apple). While if you didn’t go to a certified repair shop the screen is likely of lower quality, the major difference here is with native iOS settings. I’m hoping this will be resolved in an upcoming update, but the problem has been around for a while so it seems like it may be on purpose.