Display Refresh Rate Switching for Frame Smoothness and Lower Power
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Solution Overview
Problem
The increasing display frame rate in electronic devices leads to exponential growth in rendering and drawing power consumption, resulting in higher overall system power consumption.
Innovation Solution
A refresh rate switching method that dynamically adjusts the screen refresh rate based on the scenario, using a first refresh rate for common interfaces or applications and switching to a higher or lower refresh rate when a game scenario or touch operation is detected, thereby optimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the screen refresh rate is fixed at the highest refresh rate to maintain high display frame rate, then the display smoothness is improved, but the power consumption increases exponentially
Solution Approach 1:
The patent implements dynamic refresh rate switching by detecting game scenario states and automatically adjusting the refresh rate between different levels (e.g., 60Hz, 90Hz, 120Hz). The system transitions from a static high refresh rate mode to a dynamic adaptive mode, switching to higher refresh rates only when game scenarios are detected and switching back to lower refresh rates when games are closed or in background, thereby resolving the contradiction between maintaining high display frame rate and reducing power consumption
Solution Approach 2:
The patent changes the refresh rate parameter dynamically based on detected game scenarios. The system monitors application states and adjusts the refresh rate parameter (60Hz/90Hz/120Hz) accordingly, using higher refresh rates only when necessary for game display and lower refresh rates for general usage, thus optimizing the balance between display performance and power consumption
2Ease of operation
If the display frame rate is increased to reduce dynamic blur, then the display smoothness is improved, but the rendering and drawing power consumption increases exponentially
Solution Approach 1:
The system dynamically adjusts the refresh rate based on actual display needs. During game scenarios where high smoothness is required, the system switches to higher refresh rates (90Hz or 120Hz). When games are closed or running in background, the system automatically switches to lower refresh rates (60Hz), thereby reducing rendering and drawing power consumption while maintaining acceptable display smoothness for non-game applications
Solution Approach 2:
The patent implements parameter changes by switching between multiple refresh rate levels (60Hz, 90Hz, 120Hz) based on detected game scenarios. The system monitors application states and adjusts the refresh rate parameter dynamically, using higher refresh rates only when game smoothness is critical and lower refresh rates when acceptable smoothness can be achieved with reduced rendering power consumption
Data Source
AI summary
A refresh rate switching method and an electronic device are provided. In the method, the electronic device dynamically switches a corresponding screen refresh rate by determining whether a current display image is a high frame rate scenario or a standard frame rate scenario. In the high frame rate scenario, a relatively high screen refresh rate is used to support a high display frame rate. In this way, a user can obtain experience of the high display frame rate, and the display image is smooth without motion blur. In the standard frame rate scenario, a default low screen refresh rate is used to reduce power consumption of an entire system.