Dynamic Screen-Refresh Rate Control for Power Optimization
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Solution Overview
Problem
Electronic devices face challenges in balancing screen-refresh rate to maintain display quality and minimize power consumption, as higher rates cause delays during static scenes and lower rates lead to poor user experience during dynamic movements.
Innovation Solution
An electronic device with a sensing module, processing module, and display module that dynamically adjusts the screen-refresh rate based on user actions, switching between higher (e.g., 120 Hz) and lower (e.g., 60 Hz) rates by determining whether a transmitting signal is received before the current frame ends, using a storage module to access frames accordingly, and adjusting brightness settings based on user-defined values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a higher screen-refresh rate is used, then display fluency is improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by making the screen-refresh rate adjustable rather than fixed. The system dynamically switches between a first screen-refresh rate (higher) and a second screen-refresh rate (lower) based on real-time sensing of user actions. When user actions are detected, the system uses the higher refresh rate to maintain display fluency; when no actions are detected, it switches to the lower refresh rate to reduce power consumption.
Solution Approach 2:
The patent changes the parameter of screen-refresh rate based on detected conditions. The processing module receives sensing signals indicating user actions and accordingly selects between two different screen-refresh rate parameters. This parameter change allows the system to optimize between display quality and power consumption by matching the refresh rate to the actual usage scenario.
2Use of energy by moving object
If a lower screen-refresh rate is used, then power consumption is reduced, but display fluency during dynamic movements deteriorates
Solution Approach 1:
The patent implements feedback through the sensing module that continuously monitors user actions and provides sensing signals to the processing module. This feedback loop enables the system to detect when dynamic movements occur and automatically adjust the screen-refresh rate accordingly. The feedback mechanism ensures that the display fluency is maintained during dynamic movements while allowing power savings during static scenes.
3Use of energy by moving object
If screen-refresh rate is dynamically adjusted, then power consumption is optimized, but device complexity increases
Solution Approach 1:
The patent segments the screen-refresh operation into two distinct modes: a first screen-refresh rate for dynamic scenes and a second screen-refresh rate for static scenes. By dividing the operation into separate segments with clearly defined conditions for switching, the system manages complexity through structured organization rather than continuous complex adjustments.
Data Source
AI summary
The present invention provides an electronic device, including a storage module, a sensing module, a processing module, a driving module, and a display module. The storage module stores a plurality of frames. The sensing module outputs a sensing signal according to an action by the electronic device. The processing module outputs a transmitting signal according to the sensing signal. The transmitting signal corresponds to a first screen-refresh rate. The driving module determines the subsequent frame according to either the transmitting signal or a driving signal before the current frame ends. The driving signal corresponds to a second screen-refresh rate. The display module displays a display picture corresponding to the subsequent frame according to the subsequent frame and either the first screen-refresh rate or the second screen-refresh rate.