Multi-Primary Color System for Display Gamut Expansion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current color systems, particularly in displays, face limitations in expanding the color gamut effectively without increasing power consumption and introducing metameric errors.
Innovation Solution
The development of a multi-primary color system that includes at least four primary colors, such as red, green, cyan, and blue, with optional additional colors like white, magenta, and yellow, to enhance the color gamut. This system utilizes image data converters and digital interfaces to encode and decode image data for display on various devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a traditional three-primary (RGB) color system is used, then the system complexity and power consumption are kept low, but the color gamut is limited and metameric errors occur
Solution Approach 1:
The color system is segmented into multiple independent primary color channels (red, green, cyan, blue, and white) instead of using a traditional three-primary system. Each primary color can be independently controlled through separate image data converters, allowing the system to achieve broader color gamut while maintaining manageable complexity through modular architecture
Solution Approach 2:
The patent transitions from a three-dimensional color space (RGB) to a higher-dimensional color space by adding cyan and white primaries. This dimensional expansion allows representation of more colors and reduces metameric errors by providing additional degrees of freedom in color mixing
2Quantity of substance
If additional primary colors are added to expand color gamut, then color reproduction accuracy improves, but power consumption increases
Solution Approach 1:
Image data converters are implemented to pre-process and optimize the distribution of power among the multiple primary color channels before signal transmission. This preliminary optimization ensures that each primary color receives only the necessary power level required for accurate color reproduction, preventing excessive power consumption while maintaining broad color gamut
Solution Approach 2:
The system dynamically adjusts the intensity and contribution parameters of each primary color (red, green, cyan, blue, white) based on the specific image content and display requirements. By changing these parameters adaptively, the system achieves broad color gamut coverage while minimizing power consumption for each individual primary channel
3Illumination intensity
If multiple white emitters with different color temperatures are used, then luminance and color accuracy improve, but device complexity increases
Solution Approach 1:
Multiple white emitters with different color temperatures are merged into a unified white primary color channel. Image data converters combine the outputs of these white emitters through controlled mixing ratios, allowing the system to achieve high luminance and accurate color temperature control while presenting a simplified single-channel interface to the display hardware
Solution Approach 2:
The image data converter acts as an intermediary between multiple white emitters and the display system. It processes the individual outputs of white emitters with different color temperatures and combines them through calculated mixing ratios to produce the desired white point and luminance level, thereby reducing device complexity by abstracting away the complexity of multiple light sources
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.