Is the flickering of the phone screen causing eye fatigue a problem with PWM dimming?

A: Maybe. OLED screens generally use PWM (Pulse Width Modulation) dimming. At low brightness, the screen will flicker frequently. Some people are sensitive to this flicker and may experience symptoms such as eye fatigue and headaches. Solution: ① Avoid using the mobile phone for a long time in low brightness; ② Choose a mobile phone that supports DC-like dimming or enable the anti-flicker mode; ③ Supplement circularly polarized light treatment from the optical perspective to reduce the superimposed stimulation of linearly polarized light. Woowhead Guanfudun cannot solve the PWM dimming problem (which is a hardware feature of the screen itself), but it can optimize the light shape through circularly polarized light and the self-developed process to adjust the soft light standard, reducing the additional visual burden caused by linearly polarized light, and at the same time, the magnetron sputtering AR coating can reduce reflection. The measured light transmittance by SGS is 96.5% and the haze is 0.4%. If the PWM sensitivity is severe, it is recommended to give priority to choosing a mobile phone with high-frequency PWM (1920Hz) or DC-like dimming.