Patent ID: 8390643

Claim:
A method, operable in a processor for, dynamic gamut control comprising: controlling (LD) intensities of at least one color light source (LR, LG, LB), which generate a set of color primaries (PR, PG, PB, PW) associated with corresponding sub-pixels (RP, GP, BP, WP) of a display device, and searching (PC) for a minimal intensity value (Ra, Ga, Ba) of said at least one of said color light sources to obtain a set of color primaries (PR, PG, PB, PW) such that an adjusted color gamut G contains all colors of a set of colors (S) by: for each color X of the set of colors (S), determining (PC) a minimal intensity value (Ra(X); Ga(X); Ba(X)) of the color light source being adjusted to obtain an adjusted color gamut G(X) of the color X wherein the selected color X of the set of colors (S) lies substantially on a boundary of the adjusted color gamut G, and selecting (PC) a maximum value of the determined minimal intensity values (Ra(X); Ga(X); Ba(X)) of the color light sources being adjusted over the set of colors (S).