Color Profile Conversion for Liquid Crystal Ink Reproduction
Solution Overview
Problem
Existing color management systems are inadequate for ink compositions containing liquid crystal and chiral compounds, as they differ in color development mechanisms from traditional pigment-based inks, leading to color discrepancies in printed materials.
Innovation Solution
A color management apparatus and method that creates a color profile associating chromaticity values with signal values for ink compositions containing liquid crystal and chiral compounds, using specific ink compositions to form print patterns with selective reflection wavelengths, and converts signal values through multiple profiles to achieve desired color reproduction on monitors and printers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple profile data for different observation conditions are prepared in advance, then color accuracy under specific conditions is improved, but device complexity and data management burden increase
Solution Approach 1:
The system automatically detects current observation conditions (illumination, substrate, observer) and selects appropriate profile data without user intervention. The color management device performs self-service by autonomously managing the complexity of multiple profiles through automatic condition detection and profile selection, eliminating the need for users to manually manage multiple profile data sets while maintaining color accuracy under varying conditions
Solution Approach 2:
The system dynamically adapts to changing observation conditions by detecting current environmental parameters and automatically selecting or adjusting the appropriate color profile. Rather than requiring static pre-selection of profiles, the system transitions to a dynamic state where profiles are automatically matched to current conditions, reducing user burden while maintaining accuracy
2Adaptability or versatility
If colorimetric measurement is performed under varying observation conditions, then measurement flexibility is improved, but measurement precision deteriorates due to condition changes
Solution Approach 1:
The system incorporates feedback mechanisms that detect current observation conditions (illumination type, substrate characteristics, observer parameters) and use this information to automatically select or adjust the appropriate color profile. This closed-loop feedback ensures that even when measurements are performed under varying conditions, the system compensates by selecting the matching profile, thereby maintaining measurement precision while preserving flexibility
Solution Approach 2:
The system changes the parameter set used for color management based on detected observation conditions. By detecting variations in illumination, substrate, or observer parameters and switching to the appropriate profile data set, the system maintains measurement precision across different conditions while preserving the flexibility to measure under various observation scenarios
3Stability of the object's composition
If standard observer conditions are strictly enforced, then measurement consistency is improved, but ease of operation deteriorates due to rigid conditions
Solution Approach 1:
The system performs self-service by automatically detecting current observation conditions and selecting the appropriate profile without requiring users to manually enforce standard conditions or select profiles. This automation maintains measurement consistency through proper profile matching while significantly improving ease of operation, as users can work under natural varying conditions without compromising consistency
Data Source
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AI summary
A color management apparatus includes at least one processor. The processor performs conversion between a first signal value and a first chromaticity value through a color profile. The color profile is created using a second chromaticity value of a color chart formed of at least one ink composition containing a liquid crystal compound and a chiral compound, and a second signal value. Each of the second chromaticity value and the second signal value is associated with amounts of the liquid crystal compound and the chiral compound.