How to automatically dim the brightness of mobile phone screen?

If you use a Huawei mobile phone, the screen of the mobile phone will automatically dim, and you can operate it by the following methods:

First, open and exit the application, otherwise the screen brightness will change automatically during the application.

1. It may be because you turned on the automatic brightness level switch. After turning on the phone, the mobile phone will judge the current ambient light brightness according to the ambient light sensor at the top, and automatically adjust the screen brightness to make you feel more comfortable when using it (the screen brightness will decrease when the ambient light sensor is blocked). This is a normal phenomenon. If you want the brightness of the screen to remain the same when using the mobile phone, please search and enter the display and brightness/brightness in the settings, turn off the auto-adjustment switch and brightness level the screen to the brightness you need.

2. If the screen brightness automatically darkens when you open and exit the application, it may be because:

A. the application itself will adjust the screen brightness. Permission of brightness level is open to third-party applications, and some applications (such as video players, readers, payment applications, etc. ) can manage brightness.

B. In order to reduce the power consumption of the mobile phone, the system appropriately reduces the brightness for some application scenarios, resulting in a better comprehensive display and power consumption experience. For example, when opening applications such as WeChat, browser, address book and SMS, the brightness will be automatically adjusted even if the automatic brightness level is turned off. This design is very easy to use, please feel free to use it.

3. If your mobile phone gets hot during use, the brightness of the screen automatically darkens, because the brightness of the mobile phone is appropriately turned down to avoid overheating (CPU, battery, antenna, etc.) to reduce the heat. ), the normal screen brightness will be restored after the temperature is reduced. This design is very easy to use, please feel free to use it.

Second, turn on the automatic brightness level, and the screen brightness is dim.

Please check as follows:

1. Check whether the position of the ambient light sensor on the mobile phone is covered by film or foreign matter.

2. In a dim environment or a single light source environment, the brightness of the environment recognized by the mobile phone is relatively low, so the brightness level of the system is relatively dark. It is recommended that you manually adjust the brightness to the appropriate brightness.

3. Check the ambient light sensor. In case of the following phenomena, please back up important data (QQ, WeChat and other third-party applications need to be backed up separately), and bring the purchase voucher to Huawei customer service center for maintenance.

Turn off the automatic adjustment switch of screen brightness, and the screen brightness will change automatically;

Turn on the automatic adjustment switch of screen brightness, and under the fixed light source (such as flashlight), the screen brightness will obviously switch back and forth.

Third, after the call is completed, the phone leaves the ear and the screen lights up slowly (not applicable to Huawei Mate40).

In order to prevent the proximity light sensor from mistakenly detecting that the mobile phone is far away from the ear, the screen becomes brighter during the call and the power consumption increases, the anti-shake function is added to the mobile phone. When the call is over, the screen will light up slowly when the phone is away from the ear.

Warm reminder: After the eye protection mode is turned on, the screen will switch between white and yellow during the use of the mobile phone, which may be mistaken for the change of screen brightness.

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