Dynamic Frame Refresh Rate Control for Display Power Optimization
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Solution Overview
Problem
Current display technologies face challenges in balancing high frame rates for desirable display effects with reduced power consumption, particularly when user interactions are minimal, leading to potential fluency issues and increased power usage.
Innovation Solution
A method and device for dynamically controlling the frame refresh rate of a touch display screen by setting a maximum frame refresh rate based on the current display scene and adjusting it to a lower rate when no user interaction is detected, and switching back to the maximum rate upon user input, while monitoring touch events and picture frame rates to optimize power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the frame refresh rate is set to a high value to maintain display fluency during user interaction, then the display effect is improved, but the power consumption increases
Solution Approach 1:
The patent implements dynamic frame rate adjustment by switching between a first frame rate (for user interaction scenarios) and a second frame rate (for non-interaction scenarios). The system dynamically determines the current scenario and adjusts the frame refresh rate accordingly, making the display system adaptable to different operational states rather than maintaining a fixed high frame rate at all times.
Solution Approach 2:
The patent changes the frame rate parameter based on the detected scenario. When user interaction is detected, the system switches to the first frame rate to ensure fluency; when no interaction is detected, it switches to the lower second frame rate to reduce power consumption. This parameter adjustment resolves the contradiction by optimizing the frame rate for each specific operational context.
2Use of energy by moving object
If the frame refresh rate is reduced to minimize power consumption during inactivity, then power consumption is reduced, but the response fluency to user operations deteriorates
Solution Approach 1:
The system performs preliminary detection of user interaction scenarios and proactively adjusts the frame rate before the user actually interacts with the display. By detecting touch events, motion sensors, or other interaction indicators in advance, the system switches to the higher first frame rate in anticipation of user operations, ensuring that when the user does interact, the display is already optimized for fluent response without experiencing the lag that would occur from a delayed frame rate switch.
3Use of energy by moving object
If the frame refresh rate is dynamically adjusted based on user interaction detection, then power consumption is optimized, but the system complexity increases
Solution Approach 1:
The patent employs a scenario determination module that uses multiple detection mechanisms (touch event detection, motion sensing, other sensor inputs) to identify user interaction scenarios. This multi-functional approach allows the system to use existing hardware components for multiple purposes - the same sensors used for other device functions are also utilized for frame rate control, avoiding the need for dedicated additional hardware while achieving sophisticated frame rate management.
Data Source
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AI summary
A method for controlling a frame refresh rate of a screen can be executed by a terminal including a display screen and include: acquiring (210, 310, 410) a first target frame rate, wherein the first target frame rate is a maximum frame refresh rate corresponding to a display scene of the terminal; setting (220, 320, 420) a second target frame rate that is not greater than the first target frame rate as a frame refresh rate of the display screen; and setting (230, 330, 430) the first target frame rate as the frame refresh rate of the display screen when the terminal receives a user operation by a user on the display interface.