What is the dimming method of the Xiaomi 15?

The Xiaomi 15 adopts DC dimming, which is a method of adjusting screen brightness by controlling the power (voltage or current) supplied to the screen. 
For your reference, here are the advantages of DC dimming on the Xiaomi 15:
1. DC dimming adjusts brightness more smoothly than PWM dimming, which is beneficial for people sensitive to low-frequency flickering, reducing eye fatigue, headaches, and discomfort;
2. DC dimming provides a smoother visual experience, especially for gaming and video playback;
3. DC dimming applies a more gradual voltage change, potentially extending display life.