Why do your eyes hurt at low brightness on your phone? - The lower the brightness, the less the PWM is too. If the PWM is low, the eyes grow tired more. Take the Honor 90 ($450) AMOLED 3840Hz. Let's check how safe the smartphone is for the eyes.
Using is Radex LUPIN (120Hz screen refresh rate)
100% brightness, PWM 2500Hz (pulsations 4.78%)
50% brightness, PWM 1500Hz (pulsations 7.67%)
0% brightness, PWM 882Hz (pulsations 13.6%)
Marketers cheated! PWM 3840Hz not there?
Answer -> Only in 60Hz screen refresh rate.
![](https://i.ibb.co/Yht0nBb/444.jpg)