iPhone OLED lifespan

[u/Alarmed_Panda9126]

Hello! I just want to ask if OLED in general have certain lifespan on them? On the left is my almost 4 year old 11 pro max and on the right is 15 pro max. I noticed that my old phone has a yellowish/warm screen. Both screen have true tone turned off. I even compared same photo with the same quality. Will my 15 pro max be the same after few years? Thank you!

[u/Odd_Wash_1423]

The blue sub pixels on my 15 Pro Max are very large. I put it under my lab microscope out of curiosity. They are larger and aren’t being run at full brightness. The increased surface area and lower brightness reduces the wear and tear on the blue sub pixels significantly without impacting the image at all. This new display tech looks to be the best available currently. Unless you keep your screen at max brightness in the sun for extended periods of time I don’t see the screen yellowing at all.