DisplayPort Image Quality Feedback for MST HDR Compatibility
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Solution Overview
Problem
Display apparatuses experience screen abnormality symptoms due to compatibility issues when in multi-stream transport (MST) mode and high dynamic range (HDR) function are used, necessitating a solution to improve image quality and resolve output abnormalities.
Innovation Solution
A display apparatus with memory, display, input/output interfaces, and a processor that identifies output abnormalities, updates image quality-related configuration information, and transmits this information to a source apparatus to adjust image data configuration, including changing settings such as HBR grade, DP version, and transport mode to resolve compatibility issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multi-stream transport (MST) mode and high dynamic range (HDR) function are used simultaneously, then image quality and display capability are improved, but screen abnormality output symptoms occur due to compatibility issues
Solution Approach 1:
The display apparatus performs preliminary actions by detecting whether another display apparatus is connected before initiating MST mode operation. This pre-detection allows the system to anticipate potential compatibility conflicts and take preventive measures, such as adjusting configuration parameters or disabling certain functions, thereby preventing screen abnormalities before they occur.
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring the connection status of display apparatuses and adjusting its operation accordingly. When another display apparatus is detected, the system receives feedback about the potential conflict and modifies its behavior to maintain compatibility, thus preventing abnormal output symptoms while preserving image quality.
2Reliability
If automatic configuration adjustment is implemented to resolve screen abnormalities, then image quality is maintained, but device complexity increases
Solution Approach 1:
The display apparatus performs self-service by automatically detecting connection statuses, identifying potential compatibility issues, and adjusting its own configuration parameters without requiring external intervention. This autonomous operation simplifies the overall system complexity by eliminating the need for complex manual configuration management while maintaining reliable image output.
Data Source
AI summary
A display apparatus includes: memory configured to store instructions and image quality-related configuration information; a display; a first input/output interface including a display port; a second input/output interface; and at least one processor, wherein the instructions, when executed by the at least one processor, cause the display apparatus to: transmit the image quality-related configuration information to a source apparatus through the display port; based on image data corresponding to the image quality-related configuration information being received from the source apparatus through the display port, control the display to display an image corresponding to the image data, identify an output abnormality of the display apparatus based on the received image data, and update the image quality-related configuration information based on the identified output abnormality, and transmit the updated image quality-related configuration information to the source apparatus through the display port.