nikomanuel96 You don't need a Light Master to see the pulsation. It is enough to have a second phone. Just take a photo of the screen (with an shutter speed of 1/8000). Let's find "eye-safe brightness" on the OnePlus 9R (Amoled) | pictures taken by Ilemar, thank you.
![](https://i.ibb.co/GVk3dS4/1111.jpg)
Flickering on the screen are stripes. The more stripes, the more flickering. When the IPS screen looks clean.
![](https://i.ibb.co/jWv3kMX/3333.jpg)
As you can see, up to 50% of the brightness "the eyes do not hurt." PWM 20% for 120Hz screen is normal.
![](https://i.ibb.co/pyxhm8x/44444.jpg)
When the brightness drops to 30%, red tears will come from the eyes. It's time for DC Dimming to turn on
![](https://i.ibb.co/7NHDzgh/2222.jpg)
You can compare two photos. The eye strain has halved. When turning on 60Hz, it is safer four times.
![](https://i.ibb.co/6v9tvXz/5555.jpg)
The PWM limit is 30%. At brightness zero "eye protection". Why is DC Dimming disabled by default?
![](https://i.ibb.co/qnPPv4p/6666.jpg)