Patent ID: 8576487

Claim:
A video display system, comprising: a spatial light modulator, such that said spatial light modulator creates images by deflection of selected ones of an array of individual pixels over a period of time, wherein the period is divided into intervals; a light source operable to illuminate the spatial light modulator; a color wheel interposed between the light source and the spatial light modulator, the color wheel comprising: a plurality of color filter segments for transmitting or reflecting respective colors, at least two of which transmit or reflect a same one of a primary color; one of the at least two color filter segments being a uniform filter segment and another of the at least two color filter segments comprising two split segments and a neutral density segment located between the split segments and having a transmissivity or reflectivity for the one color that is lower than the corresponding transmissivity or reflectivity for the one color of the split segments; and neutral density spokes at respective borders between the neutral density segment and the respective split segments; and a processing system operable to modulate the pixels of the spatial light modulator according to bit-planes and bit sequences defined for the bit-planes, the bit-planes including at least one neutral density spoke bit-plane to be applied when the light source is impinging on the neutral density spokes.