Six-Primary Display Color Workflow for Wider Gamut Accuracy
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Solution Overview
Problem
Existing color systems, particularly RGB-based displays, are limited in their color gamut and face challenges in accurately replicating a wider range of colors due to technical methods that increase viewer metameric errors and operational costs, while existing multi-primary displays only process additional color information within the display itself, lacking a comprehensive workflow.
Innovation Solution
A multi-primary color system is introduced, utilizing a six-primary color system with a set of image data processed by an image data converter, including a digital interface and modifiable Session Description Protocol (SDP) parameters, to convert and display images on a display device, enabling the use of additional color primaries beyond traditional RGB.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional RGB color system is used, then device complexity is low, but color gamut is limited
Solution Approach 1:
The color system is segmented into multiple independent color primaries (six primaries: R, G, B, C, M, Y) instead of using a single three-primary RGB system. Each primary is processed through separate color channel data, allowing independent control and representation of different color components, thereby expanding the overall color gamut while maintaining manageable system architecture through modular data handling
Solution Approach 2:
The image data converter is designed with multi-functionality to handle both traditional RGB data and extended multi-primary color data. The system can process six-primary color information through a unified digital interface and transfer function framework, making the display device adaptable to different color systems without requiring completely separate processing paths for each color model
2Adaptability or versatility
If existing multi-primary displays are used, then color gamut is expanded, but workflow completeness is insufficient
Solution Approach 1:
The system performs preliminary color space conversion and data preparation in the image data converter before sending data to the display device. Transfer functions are pre-configured to map six-primary color data into the display's color space, and Session Description Protocol parameters are pre-modified to include color primary information, ensuring that all color transformation operations are prepared in advance rather than requiring complex real-time adjustments during operation
Solution Approach 2:
The image data converter serves as an intermediary between the image data source and the display device. It mediates the color space transformation by converting six-primary color data into formats suitable for the display, while also modifying SDP parameters to carry color primary information. This intermediary handles all complex color management tasks, simplifying the operation for users who don't need to manually manage the color transformation process
3Measurement precision
If traditional color systems are used, then operational costs are lower, but metameric errors increase
Solution Approach 1:
The system changes the fundamental parameters of the color system by introducing six color primaries instead of three, and by modifying the data representation to include six-primary color channel data. Transfer functions are specifically designed to map these six primaries to the display's color space, enabling more accurate color reproduction. The modified SDP parameters carry information about the color primaries, allowing the system to maintain high color accuracy while optimizing operational efficiency through standardized data handling
Data Source
AI summary
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.