Patent ID: 7604357

Claim:
An apparatus, comprising: a light engine to project light onto elements capable of changing states; and a processing unit configured to cause the light engine to adjust a level of intensity of the light projected in response to expected states for the elements and in response to a desired luminance of an image to permit a number of levels of luminance of light from the elements greater than a number of the levels of the intensity of the light capable of projection by the light engine, the processing unit configured to adjust the level of the intensity of the light projected during a first portion of a first time period according to expected states for the elements during the first portion of the first time period and to adjust the level of the intensity of the light projected during a second portion of the first time period according to expected states for the elements during the second portion of the first time period, the expected states for the elements during the first portion of the first time period are different than the expected states for the elements during the second portion of the first time period.