I think the point you're trying to make is you can calibrate away LCD backlight luminance degradation because it's uniform across the panel. And you don't noti

I think the point you're trying to make is you can calibrate away LCD backlight luminance degradation because it's uniform across the panel. And you don't notice because your eyes adapt to the whole screen. With OLED, not so much. OLED does have tech to compensate based on total pixel usage. You might see that if you tried to change a panel without the electronics. I'm not aware of how widespread it is, but I know iphones can do it.