Why does the screen brightness of the Redmi Note 14 Pro 5G change when viewing HDR videos under strong light?

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If the screen brightness of the Redmi Note 14 Pro 5G changes when viewing HDR (High Dynamic Range) videos under strong light, please refer to the following details:
1. When viewing HDR videos on your phone under strong light, the screen brightness may change dynamically due to the phone's adaptive brightness feature and HDR optimization;
2. In a high-brightness outdoor environment, in order to maintain your viewing experience, the phone will frequently switch in and out of the screen’s high-brightness mode;
3. You can feel that the screen suddenly becomes brighter when the brightness changes. This is a normal phenomenon and you can use it with peace of mind.