1. A display comprising: multiple light sources at multiple locations of said display; light source controls to dynamically vary the brightness of said light sources; an image modulator including an array of individually controllable pixels into which pixel values are scanned during an image modulator scanning time; one or more controllers receiving a spatially processed data stream of values based on which said controllers control the values for said individually controllable pixels, and said light sources at multiple locations to vary their brightness; and wherein said values for said light sources at one or more locations are set to zero during some portion of said image modulator scanning time.