Multi-Primary Display Color Pipeline 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 lack a comprehensive workflow to utilize additional color primaries beyond their internal processing.
Innovation Solution
A multi-primary color system incorporating at least four primaries, including RGB with additional colors like cyan, magenta, and yellow, utilizes a graphics processing unit (GPU), display engine, and display controller to apply non-linear transfer functions to luminance, enabling wider color reproduction and independent colorimetric coordinates for enhanced color rendering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
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 primary color channels (RGB plus additional primaries such as cyan, magenta, yellow). Each primary color is processed independently through separate transfer functions, allowing the system to expand color gamut while maintaining manageable complexity through modular processing architecture.
Solution Approach 2:
The system transitions from three-dimensional RGB color space to higher-dimensional color space by adding more primary color dimensions. This dimensional expansion enables broader color gamut coverage while the processing pipeline manages the increased complexity through systematic extension of existing RGB processing frameworks.
2Quantity of substance
If existing multi-primary displays are used, then color gamut is expanded, but workflow integration is lacking
Solution Approach 1:
The processing pipeline is designed with universal components that can handle both traditional RGB and extended multi-primary color formats. The system incorporates multiple transfer functions that can process different color spaces, enabling seamless integration with existing workflows while supporting expanded color gamut capabilities.
Solution Approach 2:
The system introduces intermediary processing stages including color space conversion modules and transfer function applications that act as mediators between different color formats. These intermediaries enable smooth transition and integration between traditional RGB workflows and extended multi-primary color systems.
3Measurement precision
If traditional color rendering methods are used, then processing is simple, but metameric errors increase
Solution Approach 1:
The system applies parameter changes by implementing non-linear transfer functions for each primary color channel. These transfer functions adjust the luminance and colorimetric parameters independently, improving color accuracy and reducing metameric errors while maintaining a processing structure that extends familiar RGB methodologies.
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.