Theory 020/Optics & Photonics
Gamut Is Primary Width
The claim
A display's colour gamut is set by the spectral width of its primaries rather than by their peak wavelength.
01The mechanism
Gamut corners are defined by the chromaticity of each primary, which broadens as the spectrum widens.
02Predictions
- P1Gamut should fall as primary width rises.
- P2Narrow primaries at the same peaks should extend gamut.
03Refutation
Gamut tracking peak wavelength alone would favour the simple account.