Electronic Device Display Color Matching Function Selection
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Solution Overview
Problem
Wide color gamut displays cause a color mismatch phenomenon where different users perceive the same color differently due to varying visual characteristics and the non-linearity of existing color standards like CIE1931.
Innovation Solution
An electronic device that identifies the most suitable color matching function (CMF) for each user by obtaining picture spectrum information from an external display, generating test images based on this information and various CMFs, and displaying these test images to allow user selection and optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wide color gamut display is used to expand color range, then color gamut is improved, but color accuracy deteriorates due to different users perceiving the same color differently
Solution Approach 1:
The patent segments the color matching function into multiple candidate CMFs (including CIE1931, CIE1964, CIE1976, and CIECAM2002). Instead of using a single fixed CMF, the system divides the color representation into multiple alternatives and selects the most appropriate one based on individual user characteristics, thereby resolving the contradiction between wide color gamut and color accuracy.
Solution Approach 2:
The patent changes the parameter of color matching function from a fixed standard to a selectable variable. By allowing dynamic selection among different CMF standards based on user-specific parameters (such as user ID or measured visual characteristics), the system adapts the color representation to individual users, maintaining both wide color gamut support and accurate color perception.
2Adaptability or versatility
If standard CIE1931 is used for color expression, then compatibility is improved, but color accuracy for wide color gamut displays deteriorates
Solution Approach 1:
The patent implements a universal color management system that can handle multiple CMF standards (CIE1931, CIE1964, CIE1976, CIECAM2002) within a single framework. The system maintains compatibility with traditional CIE1931 while incorporating newer standards, allowing it to function universally across different display types and user requirements without sacrificing color accuracy.
Solution Approach 2:
The patent transforms the static color matching function into a dynamic selection process. The system automatically or manually selects the most appropriate CMF based on user characteristics and display capabilities, making the color management system adaptive rather than fixed. This dynamic approach resolves the contradiction by allowing the system to switch between compatibility mode (CIE1931) and accuracy mode (newer CMFs) as needed.
Data Source
AI summary
An electronic device is disclosed. The electronic device includes a display; memory, the memory storing a first spectrum information of the display and information on a plurality of color matching functions (CMFs); and at least one processor connected with the memory, wherein the at least one processor is configured to: obtain picture spectrum information of a test image based on a second spectrum information of an external display device displaying the test image, obtain test images based on the picture spectrum information, the first spectrum information, and the information on the plurality of CMFs, wherein the test images comprise a respective test image for each of the plurality of CMFs corresponding to the test image, and control the display to display the test images.