Xiaomi How to Turn On/Off Always-on display

The Always-on display (AoD) on Xiaomi smartphones is an always-on screen that shows us status information such as the time, battery level, or notifications, even when the device is in standby or sleep mode.
The Always On Display is only used on Xiaomi devices with an OLED display, which minimizes battery consumption because only individual pixels of the OLED display are lighted. In addition, the AoD can replace the notification LED because an animation can be activated when a notification is received.

Note: Not all Xiaomi smartphones support the Always On Display.