Patent ID: 7872659

Claim:
A display comprising: an illuminator comprising a plurality of groups of arrayed light sources of a corresponding plurality of colors, each group of light sources arranged to illuminate a modulator and controllable to generate a controllably-variable two-dimensional pattern of light of the corresponding color on the modulator; the modulator comprising a plurality of pixels each having a plurality of elements, the elements of each of the pixels including a plurality of color elements each having a color corresponding to the color of one of the plurality of groups of light sources, the color elements each having a filter capable of passing light from a corresponding one of the plurality of groups of light sources while substantially blocking light from other ones of the plurality of groups of light sources, the color elements each controllable to vary a proportion of light of the corresponding color incident on the color element from the corresponding group of light sources that is passed to a viewing area, the elements of the pixels including at least one broadband element capable of passing light of two or more of the plurality of colors to the viewing area; an illuminator driver circuit configured to independently control intensities of different ones of the light sources in each of the plurality groups; a modulator driver circuit configured to control the proportions of light passed by the pixel elements to the viewing area; and a controller configured to, for pixels of the modulator: ascertain from image data a desired amount of light for one of the plurality of colors that should pass to the viewing area; subtract from the desired amount an amount of light of the one color that will be passed by the broadband element; and, set the color element corresponding to the one color to pass to the viewing area sufficient light of the one color so that the desired amount of the light of the one color is passed to the viewing area.