Mobile Screen Backlight Brightness Control for Power Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
As mobile phone screens increase in size, they become a major power consumption factor, necessitating a method to reduce power consumption by optimizing backlight brightness adjustment.
Innovation Solution
A method and device that determine a brightness adjustment parameter for a target interface based on a pre-stored corresponding relationship, reducing the current backlight brightness accordingly, and periodically update this relationship to optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the screen size is increased to meet user demands for larger display area, then the display area is improved, but the power consumption increases
Solution Approach 1:
The patent implements dynamic backlight brightness adjustment based on the type of application being used. Different brightness levels are assigned to different application scenarios (e.g., lower brightness for video playback, higher brightness for web browsing), allowing the system to adaptively optimize power consumption while maintaining adequate display visibility for each specific use case
Solution Approach 2:
The patent changes the backlight brightness parameter according to the application type. By adjusting this key parameter dynamically based on what the user is doing, the system reduces overall power consumption while ensuring that each application receives appropriate brightness levels for optimal viewing experience
2Use of energy by stationary object
If the backlight brightness is reduced to lower power consumption, then the energy usage is improved, but the display visibility deteriorates
Solution Approach 1:
The patent applies different brightness levels to different application types rather than using a uniform brightness setting. Each application scenario (video, web, music, etc.) receives a locally optimized brightness level appropriate to its characteristics, ensuring adequate visibility for each specific use case while reducing overall power consumption across the system
3Use of energy by stationary object
If a general brightness adjustment method is used to reduce power consumption, then the energy usage is improved, but the accuracy of brightness control for specific interfaces deteriorates
Solution Approach 1:
The patent segments the brightness control into different application categories (video playback, web browsing, music playback, etc.). Each segment receives a specifically optimized brightness level tailored to its characteristics, rather than applying a single general brightness setting to all applications. This segmented approach achieves both power savings and precise brightness control for each interface type
Data Source
AI summary
A method for controlling screen display and a device using the method are provided in the field of computer technology. The method includes: during the using of a target application, when displaying a target interface is detected, determining a brightness adjustment parameter corresponding to the target interface according to a pre-stored corresponding relationship between the interface of the application and the brightness adjustment parameter; and reducing a current backlight brightness based on the brightness adjustment parameter corresponding to the target interface.