Patent ID: 8687271

Claim:
A display, comprising: a light source; a spatial light modulator comprising a plurality of MEMS based controllable elements located to modulate light from the light source, each of the plurality of controllable elements having a controllable transmissivity; an intermediate spatial light modulator comprising a plurality of controllable elements located in a light path between the light source and the spatial light modulator; and a controller configured to control the controllable elements of the spatial light modulator and the controllable elements of the intermediate spatial light modulator in response to image data to display an image specified by the image data; wherein: the light source comprises a two-dimensional array of light-emitting elements each having a controllable light output and the controller is configured to generate driving values for the light-emitting elements based at least in part on the image data; and the controller is configured to estimate first light intensities at the controllable elements of the intermediate spatial light modulator based on the driving values for the light-emitting elements.