P-69: Beyond RGB-Primaries: Chromaticity Measurement Issues for Multi-Primary Displays

The current standards of color gamut measurement regarding RGB-primary displays are not applicable to multi-primary color (MPC) display systems. We show two case studies that measurement performed by simply extending the use of today's RGB-based standards is not able to provide accurate evaluation of the color gamut of MPC displays. The color gamut of MPC displays depends on signal processing algorithm; therefore, for measuring the color gamut of MPC displays, we propose to use not only the input signals of the maximum values for respective colors but also medium-level signals which are able to measure the chromaticity of respective primary color points on MPC display.