Multi-Primary Color System Reducing Metameric Errors
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Solution Overview
Problem
Current color systems, particularly in displays, face limitations in color gamut and light output, leading to increased viewer metameric errors and higher operational costs.
Innovation Solution
The development of a multi-primary color system that includes at least four primaries, such as a six-primary system with red, green, blue, cyan, magenta, and yellow primaries, along with advanced image data conversion and display technologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional three-primary (RGB) color system is used, then the device complexity is low, but the color gamut is limited and metameric errors increase
Solution Approach 1:
The invention segments the color reproduction task by adding multiple auxiliary primaries (cyan, magenta, yellow) to the traditional RGB system, creating a six-primary color system. This segmentation allows each primary to contribute to specific portions of the color gamut, thereby expanding overall color reproduction capability while maintaining manageable system complexity through modular implementation
Solution Approach 2:
The six-primary display system serves multiple functions simultaneously: it reproduces traditional RGB colors for compatibility with existing content, expands color gamut for enhanced visual fidelity, and reduces metameric errors through increased color precision. This multi-functionality resolves the contradiction by making the system adaptable to both simple and advanced color reproduction requirements
2Adaptability or versatility
If a multi-primary color system with at least four primaries is implemented, then color gamut is expanded, but device complexity increases
Solution Approach 1:
The invention extends the traditional three-dimensional RGB color space into a six-dimensional color space by adding three auxiliary primaries. This dimensional expansion allows the system to access a broader range of colors and provides additional degrees of freedom for color mixing, thereby expanding color gamut while managing complexity through systematic coordinate transformation methods
Solution Approach 2:
The system changes the fundamental parameters of the color system by introducing additional primary colors and their corresponding control channels. This parameter expansion enables flexible adaptation to different color spaces and content requirements, resolving the contradiction between versatility and complexity through programmable control
3Measurement precision
If a six-primary system with red, green, blue, cyan, magenta, and yellow primaries is used, then metameric errors are reduced, but manufacturing complexity increases
Solution Approach 1:
The invention uses color conversion algorithms that copy and transform color data from traditional three-primary formats into the six-primary color space. This copying approach allows existing image content to be adapted to the enhanced system without requiring complete re-fabrication of display hardware, thereby reducing manufacturing complexity while maintaining color accuracy
Solution Approach 2:
The patent introduces an intermediary color conversion process that mediates between traditional RGB content and the six-primary display system. This intermediary layer handles the complexity of color space transformation, allowing the physical display fabrication to remain relatively simple while achieving high color accuracy through software-based color management
Data Source
AI summary
The present invention includes systems and methods for a multi-primary color system for display. A multi-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. One embodiment of the multi-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.