Six-Primary Color System Reducing Metameric Errors
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Solution Overview
Problem
Current color systems, particularly in displays, are limited by their range of color reproduction and light output, leading to increased viewer metameric errors and operational costs due to the technical methods used to expand color gamut, which often require higher power consumption and narrower emissive spectra.
Innovation Solution
A six-primary color system is introduced, including a set of image data with a digital interface for encoding and decoding, using additional color primaries like magenta, cyan, and yellow, along with red, green, and blue, to enhance color reproduction by modifying Session Description Protocol (SDP) parameters and electronic luminance components, allowing for network communication and display of a six-primary color system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional RGB color systems are used to expand color gamut, then color reproduction range is improved, but power consumption increases and metameric errors occur
Solution Approach 1:
The patent segments the color reproduction task by introducing multiple green light emitting diodes with different peak wavelengths (first green light, second green light, third green light) instead of using a single broad-spectrum source. This segmentation allows precise control over spectral composition, achieving wide color gamut while maintaining lower power consumption by emitting only at necessary wavelengths.
Solution Approach 2:
The patent applies local quality by assigning specific peak wavelengths to different green light emitting diodes at different locations in the cell array. Each light adjusting portion emits light with optimized spectral characteristics for its specific position, enabling precise color control across the display while reducing overall power requirements compared to uniform broad-spectrum illumination.
2Illumination intensity
If traditional RGB color systems are used to expand color gamut, then color reproduction range is improved, but viewer metameric errors increase
Solution Approach 1:
The patent segments the green color emission into multiple discrete wavelength components from different green light emitting diodes. This segmentation provides distinct spectral lines that reduce metamerism by ensuring that reflected colors are produced by specific wavelength combinations rather than broad-spectrum overlap, thereby improving color measurement precision and reducing viewer metameric errors.
Solution Approach 2:
The patent creates a composite light emission system by combining multiple green light emitting diodes with different peak wavelengths along with red and blue light emitting diodes. This composite approach produces a multi-line spectrum that maintains wide color gamut while improving color accuracy by using discrete spectral lines that minimize metameric confusion.
3Illumination intensity
If light adjusting portions are added to expand color gamut, then color reproduction is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple green light emitting diodes into a single integrated cell array structure with shared electrodes and common substrate. This combining approach reduces device complexity by integrating what would otherwise be separate components into a unified module, while still achieving expanded color gamut through the coordinated emission of multiple green wavelength sources.
Solution Approach 2:
The patent creates universal light adjusting portions that can emit multiple wavelengths (red, green, blue) through a single integrated structure. Each light adjusting portion serves multiple functions by controlling different color emissions, thereby reducing overall device complexity while maintaining wide color gamut capability.
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.