Patent ID: 7909474
Filing Date: 2011-03-22
Classification: G03B,H04N

Abstract:
1. A digital projection apparatus comprising: a) a first light modulation subsystem comprising: b) a second light modulation subsystem comprising: c) a color combining element disposed near the intersection of the first and second optical paths to direct incident modulated light from the first and second optical paths onto a common optical path; d) projection optics disposed to direct modulated light along the common optical path toward a scanning element for projection toward a display surface; wherein one or more of the at least two independently addressable linear arrays of light modulating devices from the first chip modulates light at half the pixel resolution of modulated light in an array direction from the at least one independently addressable linear arrays of light modulating devices from the second chip; wherein one or more of the at least two independently addressable linear arrays of light modulating devices from the first chip modulates light at half the pixel resolution of modulated light in a scan direction from the at least one independently addressable linear arrays of light modulating devices from the second chip; and wherein half resolution is obtained in the scan direction by adjusting data timing and in the linear array direction by operating the modular array at half pixel resolution.