Observer metamerism to display white point using different primary sets.

Area of Science:

• Color Science
• Display Technology
• Human Vision

Background:

• Different display primary sets can cause perceived color mismatch for computationally metameric stimuli.
• Observer metamerism, variations in perceived color differences among individuals, is influenced by display primaries.

Purpose of the Study:

• To investigate expanding the color gamut area of a liquid crystal display (LCD) system.
• To minimize white point color difference and observer metamerism using 16 three-primary sets.

Main Methods:

• Computational analysis and psychophysical experiments were conducted.
• Evaluated 16 different three-primary sets for a commercial LCD system.
• Assessed color gamut area, white point mismatch, and observer metamerism.

Main Results:

• A primary set with peak wavelengths of 450, 525, and 665 nm increased the sRGB color gamut by 72.1% in the CIE 1931 chromaticity diagram.
• This primary set minimized white point color mismatch and observer metamerism.
• CIE 2006 2° Color Matching Functions (CMFs) showed superior performance in characterizing white point color match for the experimental field of view.

Conclusions:

• The selected primary set offers a significant improvement in color gamut volume for wide color gamut displays.
• Minimizing white point mismatch and observer metamerism is achievable with optimized primary selection.
• The CIE 2006 2° CMFs are recommended for characterizing color matches within a specific field of view.