HOW TO TUNE THE DISPLAY OF YOUR SMARTPHONE TO AVOID ANNOYING PWM PROBLEMS
In this note, I will describe all the settings you need to tweak to get a 100% flicker-free, eye-friendly result on your smartphone. However, some settings are quite extreme and you don’t need to apply all of them, such as the monochrome filter or setting extremely high warm values on the color temperature slider.
PWM flickering is a “feature” of most digital displays at relatively low brightness levels that can cause eye strain and headaches.