Patent ID: 8564628

Claim:
An apparatus comprising: at least one shared light source; a first selective attenuation element, used for a first plurality of adjacent pixels and configured to attenuate light from the at least one shared light source; a first group of adjacent mono-chrome light filters, used for the first plurality of adjacent pixels, the first group comprising: a first mono-chrome light filter belonging to the first group of adjacent mono-chrome light filters, for a first one of the first plurality of adjacent pixels, configured to filter light transmitted via the first selective attenuation element for the first one of the first plurality of adjacent pixels; and a second mono-chrome light filter belonging to the first group of adjacent mono-chrome light filters, for a second one of the first plurality of adjacent pixels, configured to filter light transmitted via the first selective attenuation element for the second one of the first plurality of adjacent pixels; a second selective attenuation element, used for a second plurality of adjacent pixels and configured to attenuate light from the at least one shared light source; a second group of adjacent mono-chrome light filters, used for the second plurality of adjacent pixels, the second group comprising: a first mono-chrome belonging to the second group of adjacent mono-chrome light filters, for a first one of the second plurality of adjacent pixels, configured to filter light transmitted via the second selective attenuation element for the first one of the second plurality of adjacent pixels; and a second mono-chrome light filter belonging to the second group of adjacent mono-chrome light filters, for a second one of the second plurality of adjacent pixels, configured to filter light transmitted via the second selective attenuation element for the second one of the second plurality of adjacent pixels, wherein the at least one shared light source is shared between the first selective attenuation element and the second selective attenuation element.