Camera Image Sensor Screen Brightness Adjustment for Battery Life
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Solution Overview
Problem
Electronic devices without light sensors or with disabled automatic brightness adjustment functions face increased power consumption when the camera application is used, as they often adjust screen brightness to a higher level, which is not adaptive to ambient light changes.
Innovation Solution
A method and device that utilize an image sensor to determine ambient light brightness and adjust screen backlight brightness based on current screen brightness, reducing power consumption by maintaining adaptive screen brightness for the camera application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the screen brightness is adjusted to a higher level when the camera application is opened, then the user experience is improved, but the power consumption of the electronic device increases
Solution Approach 1:
The patent implements dynamic screen brightness adjustment by continuously monitoring ambient light conditions through the camera image sensor and automatically adjusting the screen brightness level. This replaces static high brightness settings with adaptive dynamic adjustment, maintaining good user experience while consuming less power in dim environments.
Solution Approach 2:
The system changes the brightness parameter based on ambient light conditions detected by the camera. By adjusting the screen brightness parameter dynamically according to environmental lighting, the system achieves optimal user experience without unnecessarily high power consumption.
2Illumination intensity
If the camera application adjusts the screen brightness to a higher level, then the visibility for camera use is improved, but the battery life of the electronic device is reduced
Solution Approach 1:
The patent implements a feedback mechanism where the camera image sensor continuously detects ambient light conditions, and this information is fed back to the brightness control system. The system automatically adjusts screen brightness based on this feedback, ensuring adequate visibility during camera use while avoiding excessive brightness that would drain the battery quickly.
Solution Approach 2:
The system uses the camera's own image sensor to detect ambient light conditions and automatically adjust screen brightness without requiring separate light sensors or manual user intervention. This self-service approach ensures appropriate brightness levels while conserving battery life.
3Device complexity
If the electronic device does not have a light sensor or the automatic brightness adjustment function is turned off, then the device complexity is reduced, but the screen brightness cannot adapt to ambient light changes
Solution Approach 1:
The patent makes the camera image sensor serve multiple functions: its primary function for capturing images and an additional function for detecting ambient light conditions to control screen brightness. This multi-functionality eliminates the need for a separate light sensor, maintaining simple device structure while achieving adaptive brightness control.
Solution Approach 2:
The camera image sensor acts as an intermediary between the ambient environment and the brightness control system. Instead of using a dedicated light sensor, the system uses the camera sensor as a mediator to detect light conditions and trigger appropriate brightness adjustments.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces power consumption and enhances battery life while providing adaptive screen brightness for camera applications, improving user experience without requiring higher screen brightness levels.
Implementation Method 1
driving an image sensor corresponding to the camera application through a kernel layer of the electronic device to obtain photosensitive data forming each frame of the image
Data Source
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AI summary
A screen brightness adjustment method and apparatus, and a storage medium and an electronic device (500), used for prolonging the battery life of the electronic device (500), and improving the user experience. When a camera application is running, an image sensor is driven by a kernel layer to acquire photosensitive data; the photosensitive data is acquired by a hardware abstraction layer, and an ambient light brightness value is determined; and screen backlight brightness corresponding to a camera application interface is adjusted according to the ambient light brightness value and a current screen brightness value.