Patent ID: 8687143

Claim:
A method of illuminating a display comprising the steps of: (a) spatially varying the luminance of a multi-colored light source illuminating a plurality of pixels of said display in response to receiving a plurality of pixel values; (b) varying the transmittance of a light valve of said display having filters corresponding to said multi-colored light source in response to receiving said plurality of pixel values; (c) modifying the illumination from said display for said plurality of pixel values based upon modification of said luminance of said light source and said varying said transmittance of said light valve; (d) wherein said modifying modifies at least one of said multi-colored light sources and modifies the transmittance of at least one said light valve associated with a filter of a different color than a modified said at least one of said multi-colored light sources, and using a technique that expressly models crosstalk of said at least one of said multi-colored light sources in combination with said transmittance of said at least one light valve associated with a filter of a different color than a modified said at least one of said multi-color light sources, in such a manner that increases the color gamut of said display and increases the crosstalk of said display, where the crosstalk is modeled in a color space that includes a crosstalk primary C defined by ( R G B C ) = [ LED r 0 0 0 LED g 0 0 0 LED b 0 0 LED g ] â¡ [ LCD r LCD g LCD b ] .