Patent ID: 8502838
Filing Date: 2013-08-06
Classification: G09G,H04N

Abstract:
1. A method for use in displaying an image, comprising: generating a sequence of different color light by directing light of an intensity from a lamp through a spinning color wheel that comprises a set of corresponding different color segments separated by a set of segment boundaries; sequentially illuminating an array of individually addressable pixels of a spatial light modulator using the sequence of different color light, wherein each segment boundary is imaged onto the pixel array forming a spoke; dynamically adjusting the intensity of the light from the lamp by controlling the voltage or current driving the lamp, wherein lamp pulses comprise stable states separated by rising and trailing edges; dividing the pixel array of the spatial light modulator into a set of sub-arrays such that the pixels of each sub-array form a reset group connected for reset to a respective common reset signal; and synchronizing pixel operations so that pixels of sub-arrays being swept by a spoke are modulated to display mixed color, pixels of sub-arrays not being swept by a spoke are modulated to display single color, pixels of all sub-arrays are reset substantially only during stable states of lamp pulses, and pixels of sub-arrays being swept by a spoke are not illuminated by lamp pulse rising and trailing edges.