Static Display Metadata Updates for Flicker and Content Clipping
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Solution Overview
Problem
Consumer gaming displays have a limited luminance range, leading to clipped content and potential competitive disadvantages due to unobservable elements, necessitating time-consuming testing across various displays to ensure content visibility.
Innovation Solution
Dynamic modification of static metadata, such as refresh rate and luminance, is enabled by electronic devices to adjust display capabilities, reducing flicker and content clipping through modified metadata communication between source and sink devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static metadata is used to indicate display capabilities, then device complexity is reduced and compatibility is improved, but display performance optimization is limited and flicker cannot be reduced
Solution Approach 1:
The patent applies dynamics by transitioning from static metadata to dynamic metadata modification. The system allows the display device to dynamically modify static metadata (such as refresh rate and luminance values) after initial display capability exchange, enabling real-time optimization of display performance while maintaining compatibility with existing protocols.
Solution Approach 2:
The patent implements parameter changes by modifying specific metadata parameters (refresh rate, luminance, color space) to optimize display performance. The system changes these parameters dynamically based on detected conditions such as flicker detection, allowing the display to adjust its characteristics without requiring complete protocol renegotiation.
2Reliability
If multiple displays are purchased and managed for testing, then content visibility is ensured, but loss of time increases and productivity decreases
Solution Approach 1:
The patent applies self-service by enabling the display device to automatically detect and report its actual performance characteristics (such as true refresh rate and luminance capabilities) rather than relying on manufacturer specifications. This allows the source device to automatically configure optimal settings without requiring manual testing across multiple displays, thereby ensuring content visibility while reducing time loss.
Solution Approach 2:
The patent implements feedback mechanisms where the display device provides accurate real-time information about its actual performance characteristics to the source device. This feedback loop enables automatic adaptation of video signals to match the display's true capabilities, eliminating the need for extensive manual testing across multiple devices while ensuring optimal content visibility.
3Manufacturing precision
If limited luminance range is used in consumer displays, then device complexity is reduced and manufacturing cost is lowered, but content clipping occurs and measurement precision is reduced
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting metadata parameters such as luminance range and color space to match the display's actual capabilities. This allows the system to optimize luminance accuracy and prevent content clipping by accurately representing the display's true characteristics, while maintaining ease of manufacture through software-based optimization rather than hardware changes.
Data Source
AI summary
In some examples, a method includes detecting a trigger to modify static refresh rate metadata stored on a display device. In some examples, the method includes modifying, at the display device, the static refresh rate metadata to produce modified refresh rate metadata. In some examples, the method includes sending the modified refresh rate metadata to a source device.