• 4 color display
• chromacity diagram
• trilinear mixing triangle
• chromaticity

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Normal colour displays have 3 differently-coloured sub-pixels (red, green and blue). What happens if we add a yellow one into the mix?


Sources:

Colour Vision
http://www.handprint.com/HP/WCL/color1.html

Cone Fundamentals
http://www.cvrl.org/cones.htm

Color: the 1931 CIE color-matching functions and chromaticity chart
http://rip94550.wordpress.com/2009/10/18/color-the-1931-cie-color-matching-functions-and-chromaticity-chart/

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The Story Unfolds