Is it OLED's fault that my eyes get sore after looking at the iPhone 17 screen for a long time?

A: There is some connection, but not everything. OLED screens have several features that may affect visual comfort compared to LCD screens: ①PWM dimming (high-frequency flickering at low brightness, sensitive to some people); ② Linearly polarized light (3 layers of polarizing film in the LCD era, simplified to 2 layers in OLED, with more concentrated light); ③ High contrast and high brightness (the picture is sharper but may also be more thrilling). However, these problems can be alleviated through reasonable Settings and optical accessories. The OLED screen design of Woowhead Guanfudun for iPhone 17 converts linearly polarized light into circularly polarized light (closer to natural light) through circularly polarized light and the soft light standard adjusted by its own process. A study in the Chinese Journal of Preventive Medicine in 2009 showed that circularly polarized light can reduce the visual burden. Meanwhile, magnetron sputtering AR coating reduces reflection. Note: The film cannot solve the PWM dimming problem. It is recommended to avoid using it for a long time at the lowest brightness.