Video Playback Frame Rate Matching to Display Refresh Rates
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Solution Overview
Problem
The mismatch between the frame rate of video content and the display refresh rate leads to inefficiencies, such as wasted resources or suboptimal image quality, as the electronic device either transmits frames more frequently than the display can update or fails to provide new frames when the frame rate is lower than the display refresh rate.
Innovation Solution
An electronic device is provided with a processor that determines an output frame rate based on the display refresh rate, allowing it to adjust the frame rate of video data in response to user input, discarding or interpolating frames as necessary to match the display's refresh rate, thereby optimizing resource usage and image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the electronic device transmits frames at a rate higher than the display refresh rate, then the video content is reproduced smoothly, but resources are wasted because some frames cannot be displayed
Solution Approach 1:
The system dynamically changes the frame rate parameter of the video signal based on the display refresh rate. When the display refresh rate is lower than the video frame rate, the system adjusts the output frame rate to match the display capability, preventing resource waste while maintaining smooth reproduction through intelligent frame selection and timing
2Loss of energy
If the electronic device transmits frames at a rate lower than the display refresh rate, then processing resources are saved, but image quality deteriorates because the display cannot update with new frames
Solution Approach 1:
The system dynamically adjusts the frame rate parameter to synchronize with the display refresh rate. When the video frame rate is lower than the display refresh rate, the system increases the output frame rate to match the display capability, ensuring high image quality while maintaining resource efficiency through optimized frame transmission timing
3Loss of energy
If the frame rate is dynamically adjusted to match display refresh rate, then resource efficiency improves, but system complexity increases
Solution Approach 1:
The system automatically monitors the display refresh rate and independently adjusts the video frame rate without requiring manual user intervention. The frame rate control unit dynamically synchronizes the output frame rate with the display refresh rate, achieving resource efficiency through autonomous adaptation
Solution Approach 2:
The system implements a feedback mechanism where the display refresh rate information is continuously monitored and fed back to the frame rate control unit. This feedback loop enables automatic adjustment of the video frame rate to match the display capability, optimizing resource usage while keeping the control logic manageable through closed-loop control
Data Source
AI summary
An electronic device is provided. The electronic device includes a communication circuit, a memory which stores instructions, and a processor operatively connected to the communication circuit and the memory. The processor may be configured to determine a first output frame rate on the basis of a display refresh rate, output, through the display, first playback video data having a first playback frame rate, receive a user input which enables the first playback frame rate to change to a second playback frame rate, change, in response to the user input, the frame rate of the first playback video data to the second playback frame rate, and output, through the display, first corrected video data generated to have the first output frame rate from the first playback video data having the second playback frame rate.