Why the screen of the POCO X7 Pro will be reddish at low brightness and low grayscale when the screen temperature is high?

The reddish tint you notice on the POCO X7 Pro screen when the temperature is high can be attributed to the high-frequency PWM (pulse-width modulation) used for brightness control. The phone uses a 1920Hz PWM to reduce flicker at low brightness, but under high temperature conditions, slight color differences, including a reddish hue, can become more noticeable. This is a normal phenomenon that occurs due to the screen's temperature response. The phone has undergone strict inspection before leaving the factory, so you can use it with confidence. Please feel free to use it.