Adaptive Video Refresh Rate for Bullet Screen Playback
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Solution Overview
Problem
Existing display technologies face inefficiencies in video playback due to fixed high refresh rates that exceed the required refresh rate, leading to processor overload and increased power consumption.
Innovation Solution
A method that dynamically adjusts the refresh rate based on the video playing scenario, distinguishing between time-synchronous comment drawing and video playback, and adjusts the refresh rate accordingly to meet the specific requirements of each scenario.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a fixed high refresh rate is used to ensure smooth picture display, then picture display smoothness is improved, but processor load increases and power consumption increases
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed refresh rate to a dynamic refresh rate that adapts to different scenarios. The system detects the current scenario (video playback, image display, or mixed content) and adjusts the refresh rate in real-time, making the refresh rate flexible rather than static. This resolves the contradiction by using high refresh rates only when necessary for smoothness while lowering them to save power during video playback.
Solution Approach 2:
The patent changes the parameter of refresh rate based on scenario detection. When video playback is detected, the system switches to a lower refresh rate matching the video frame rate, while for image display or mixed content requiring smooth interaction, it maintains a higher refresh rate. This parameter adaptation resolves the contradiction between maintaining display smoothness and reducing power consumption.
2Stability of the object's composition
If a fixed high refresh rate is used to ensure smooth picture display, then picture display smoothness is improved, but processor load increases
Solution Approach 1:
The system dynamically adjusts the refresh rate based on scenario detection, reducing processor workload during video playback by lowering the refresh rate to match the video frame rate. During image display or interactive scenarios, it maintains higher refresh rates for smoothness. This dynamic adaptation resolves the contradiction between display smoothness and processor load.
Solution Approach 2:
The patent changes the refresh rate parameter according to the detected scenario. For video playback, it reduces the refresh rate to match the video's native frame rate, thereby reducing processor rendering workload. For other scenarios requiring smooth display, it maintains higher refresh rates. This parameter adjustment resolves the contradiction between smoothness and processor load.
3Use of energy by moving object
If refresh rate is reduced to save power during video playback, then power consumption is reduced, but display smoothness may be compromised
Solution Approach 1:
The patent applies local quality by differentiating between different content types and applying appropriate refresh rates to each. Video content receives a lower refresh rate optimized for power savings, while interactive elements or image content within the same display area maintain higher refresh rates for smoothness. This localized differentiation resolves the contradiction between power consumption and display smoothness.
Solution Approach 2:
The system changes the refresh rate parameter based on content type detection. For video playback content, it reduces the refresh rate to match the video frame rate, saving power. For other content types requiring smooth display, it maintains higher refresh rates. This selective parameter adjustment resolves the contradiction between power consumption and display smoothness.
4Use of energy by moving object
If scenario detection and dynamic refresh rate adjustment is implemented, then power consumption is optimized, but system complexity increases
Solution Approach 1:
The patent implements feedback by detecting the current display scenario and using this information to adjust the refresh rate accordingly. The system continuously monitors content type (video, image, or mixed) and adjusts the refresh rate in response, creating a closed-loop control system. This feedback mechanism resolves the contradiction by automating the optimization process, making the increased complexity worthwhile for the power savings achieved.
Data Source
Figure 1A(1)~1A(2)
Figure 1B(3)~1B(4)
Figure 2
AI summary
This application relates to the field of display technologies, and discloses a refresh rate setting method and a related device, aiming to meet a requirement of an electronic device for a refresh rate in a video playing process. A specific solution includes: refreshing and displaying the application interface of the application at the first refresh rate in response to receiving an operation of launching the application by a user; displaying a video picture at the first refresh rate in response to receiving an operation of playing a video by the user; determining, in a process of displaying the video picture, whether to perform bullet screen drawing in a preset duration; collecting statistics on bullet screen data of each frame of displayed picture of the video in a case that bullet screen drawing is performed in the preset duration; refreshing and displaying the application interface of the application at a second refresh rate according to the bullet screen data of the each frame of displayed picture, to meet a display requirement in a bullet screen scenario; and refreshing and displaying the application interface of the application at a third refresh rate in a case that bullet screen drawing is not performed in the preset duration, to meet a display requirement in a video playing scenario.