Display Refresh Rate Adjustment for Video Jitter Elimination
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Solution Overview
Problem
Conventional display devices introduce jitter artifacts when displaying video content with varying frame rates, as they often require duplicating frames to match the refresh rate, leading to a jerky and discontinuous visual experience.
Innovation Solution
A computer-implemented method that adjusts the refresh rate of a display device to be an integer multiple of the video content frame rate, eliminating the need for frame duplication by synchronizing the refresh rate with the video content frame rate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frame duplication is used to match refresh rate with video content frame rate, then the display can operate at a fixed refresh rate, but jitter artifacts are introduced causing jerky and discontinuous visual experience
Solution Approach 1:
The patent applies dynamics by making the refresh rate adjustable rather than fixed. The display device dynamically changes its refresh rate to match the frame rate of the incoming video content, eliminating the need for frame duplication and the associated jitter artifacts. This dynamic adaptation resolves the contradiction between maintaining fixed refresh rate operation and ensuring smooth visual playback.
Solution Approach 2:
The patent changes the parameter of refresh rate from a fixed value to a variable value that adapts to the video content's frame rate. By modifying this critical parameter dynamically, the system eliminates jitter artifacts while maintaining compatibility with various video sources, resolving the contradiction between fixed operation and visual quality.
2Adaptability or versatility
If frame duplication is introduced to synchronize display refresh rate with video content, then display compatibility is maintained, but visual quality deteriorates due to jitter
Solution Approach 1:
The system dynamically adjusts the refresh rate parameter to match the video content's frame rate, maintaining compatibility across different video sources while preserving visual quality. This dynamic approach eliminates the need for frame duplication and the resulting jitter, resolving the contradiction between compatibility and visual quality.
3Ease of operation
If fixed refresh rate is used regardless of video content frame rate, then device operation is simplified, but visual artifacts are introduced
Solution Approach 1:
The patent introduces dynamic refresh rate adjustment that automatically adapts to the video content's frame rate. This dynamic mechanism maintains operational simplicity from the user's perspective while eliminating jitter artifacts, resolving the contradiction between ease of operation and visual quality.
Solution Approach 2:
The display device performs self-adjustment of its refresh rate based on the incoming video content's frame rate. This self-service capability eliminates the need for manual configuration or complex processing, maintaining operational simplicity while preventing jitter artifacts through automatic adaptation.
Data Source
AI summary
One embodiment of the invention sets forth a technique for determining the frame rate of video content and modifying the refresh rate of a display device to be a multiple of the determined frame rate. A video player application accesses video content and transmits video content frames associated with the video content to a driver. Based on the received video content frames, the driver generates display frames for display on a display device. The driver also determines a frame rate associated with the video content and then modifies the refresh rate of the display device to be a multiple of the video content frame rate.