Patent ID: 6621529
Filing Date: 2003-09-16
Classification: H04N

Abstract:
A display system comprising:a light source for producing a beam of white light along a first light path; a filter wheel on said first light path for filtering said beam of white light, said filter wheel having at least one set of primary colored filters thereon; a motor connected to said filter wheel for spinning said filter wheel at a nominal speed; a spatial light modulator on said first light path for receiving said filtered beam of light traveling along said first path and selectively modulating said filtered beam of light traveling along said first path to form an image; and a controller receiving an input video signal and providing image data decoded from said input video signal to said spatial light modulator, said input video signal having one of at least two formats, said at least two formats having at least two nominal frame periods, said controller dividing said frame periods into sub-frames during which said image data is used by said spatial light modulator to form said image, the number of sub-frames dependent on the format of a received input video signal and the nominal speed of said color wheel.