Screen brightness adjustment method and apparatus

By acquiring facial images, calculating the screen angle, and adjusting compensation parameters, the problem of brightness value error of ambient light sensors at different angles has been solved, achieving more accurate screen brightness adjustment and improving the user's visual experience.

CN122116843APending Publication Date: 2026-05-29WISTRON CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WISTRON CORP
Filing Date
2024-12-26
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing ambient light sensors may detect errors in ambient brightness values ​​when the screen is tilted at different angles to the light source, resulting in inaccurate screen brightness adjustment and affecting the user experience.

Method used

The system acquires the user's facial image using an image capture device, calculates the screen angle using a facial recognition algorithm, obtains compensation parameters based on the screen angle, adjusts the brightness value of the ambient light sensor to obtain the actual ambient brightness value, and then adjusts the screen brightness accordingly.

Benefits of technology

The accuracy of the ambient light sensor's brightness value has been improved, enhancing the precision of screen brightness adjustment and providing a better visual experience.

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    Figure CN122116843A_ABST
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Abstract

A screen brightness adjustment method and device are disclosed. The screen brightness adjustment method can be applicable to a screen brightness adjustment device. The screen brightness adjustment method can include the following steps. A face image is obtained by an image capturing device of the screen brightness adjustment device. A screen angle is obtained by a processor of the screen brightness adjustment device according to the face image. An ambient brightness value is obtained by an ambient light sensor of the screen brightness adjustment device. A compensation parameter is obtained by the processor according to the screen angle. An actual ambient brightness value is obtained by the processor according to the ambient brightness value and the compensation parameter. The brightness of a display device of the screen brightness adjustment device is adjusted by the processor according to the actual ambient brightness value.
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