Display Color Mapping for Super Saturated Gamut Expansion

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Solution Overview

Problem

Existing RGB and multi-primary display systems face limitations in color range and light output, leading to increased viewer metameric errors and higher operational costs, with additional color primaries often limited to internal display processing and lacking in generating super saturated colors.

Innovation Solution

A system and method for displaying super saturated colors using a set of image data with primary color signals, including a digital interface for encoding and decoding, and a viewing device, where the system converts image data to relative luminance and colorimetric coordinates, allowing for the display of colors beyond the maximum luminance capability of the viewing device.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If additional color primaries are added to expand color gamut, then color range is improved, but device complexity and operational costs increase

Engineering Contradiction:

Improvecolor gamutVSAvoidsystem complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a multi-primary color system where a single display device can render multiple color spaces (RGB, RGBCMY, and beyond) by dynamically adjusting the number and properties of active light-emitting elements. This allows one display to serve multiple color gamut requirements without requiring separate devices for each color space, thereby expanding color range while managing system complexity through software-controlled versatility.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system dynamically adjusts the number of active color primaries and their spectral properties based on the content being displayed and the desired color gamut. By making the color primary configuration changeable and adaptive rather than fixed, the system can optimize color reproduction for different applications while avoiding the permanent complexity of having all possible color primaries always active.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If additional color primaries are added to expand color gamut, then color range is improved, but operational costs increase

Engineering Contradiction:

Improvecolor gamutVSAvoidoperational cost

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by stationary object

Solution Approach 1:

The system activates only the necessary number of color primaries required for the current display task rather than maintaining all possible color primaries active continuously. This partial action approach reduces power consumption and operational costs while still enabling expanded color gamut when needed, as the system can switch between using three, four, five, or six color primaries depending on the content requirements.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The patent changes operational parameters such as the number of active color primaries and their spectral characteristics based on the display content and desired color gamut. By dynamically adjusting these parameters rather than maintaining fixed high-cost configurations, the system achieves expanded color capability when necessary while reducing operational costs during standard operations.

Inventive Principle:

Principle #35Parameter changes

3Device complexity

If color primaries are limited to internal display processing, then device complexity is reduced, but ability to generate super saturated colors is worsened

Engineering Contradiction:

Improveprocessing complexityVSAvoidsuper saturated color generation

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The system introduces an intermediary color management layer that bridges the gap between simple display hardware and the desire for super saturated color output. This intermediary processing layer enables the display to generate and render super saturated colors by coordinating multiple color primaries in specific combinations, achieving enhanced color capability without requiring complex hardware modifications.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Ease of operation

If standard RGB processing is used, then ease of operation is maintained, but viewer metameric errors increase

Engineering Contradiction:

Improveprocessing simplicityVSAvoidcolor accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The system changes the color reproduction parameters by dynamically adjusting the number and spectral properties of active color primaries based on the content being displayed. This allows the system to maintain ease of operation through automated parameter adjustment while significantly improving color accuracy and reducing metameric errors by using optimized color primary combinations for each display task.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12518365B2System and method for displaying super saturated color

Publication Date: 2026.01.06 BAYLOR UNIVERSITY

AI summary

Systems and methods for displaying super saturated color. Image data for display on a display or viewing device with a potential white luminance in a standard system with a maximum luminance is processed such that colors near the white point are reduced to a limited luminance. As the chroma of the displayed color is increased, a luminance attenuation is decreased. The scaling of the reduction is operable to be a linear function, a non-linear function, or any other function.