Patent ID: 8164602
Filing Date: 2012-04-24
Classification: G09G

Abstract:
1. A display comprising: an illuminator comprising an array of light sources, the light sources including light sources of a plurality of colors; a modulator disposed to be illuminated by the illuminator, the modulator comprising a plurality of pixels, each having a plurality of elements; an illuminator driver circuit, the illuminator driver circuit configured to independently control intensities of the light sources in each of a plurality of areas of the illuminator and, within each of the areas, independently control intensities of the light sources of each of the plurality of colors, wherein the light sources in each of the plurality of areas of the illuminator are arranged to illuminate a corresponding area of the modulator with light having a color and intensity controllable by the illuminator driver circuit; and, a modulator driver circuit connected to control modulation of the light from the illuminator by the pixel elements; wherein the light sources of each color are configured to emit light distributed according to a corresponding point spread function, the point spread function corresponding to one color having a full width at half maximum different from the full width at half maximum of the point spread function corresponding to at least one other one of the colors.