Patent ID: 8248393

Claim:
A color display device for displaying a color image, the color display device comprising: a display panel provided with a plurality of picture elements for displaying said color image, wherein each of said picture elements is controllable by a drive signal (R′,G′,B′); a light source capable of providing to said plurality of picture elements a first spectrum during a first period (SF 1 ) and a second spectrum (S 2 ), different from the first spectrum, during a second period (SF 2 ); and a video processing means (MPC, XTC, SC; MPC, SM 2 , SD, XTC, SM) for processing information (RGB) representing said color image, wherein said video processing means is configured to provide said drive signal (R′,G′,B′) from said information (RGB) to said plurality of picture elements, said drive signal comprising a first set of primary drive signals (R 1 ,G 1 ,B 1 ) for driving said plurality of picture elements during said first period (SF 1 ) using said first spectrum (S 1 ) and comprising a second set of primary drive signals (R 2 ,G 2 ,B 2 ) for driving said plurality of picture elements during said second period (SF 2 ) using said second spectrum (S 2 ), the video processing means comprising: a means (XTC) for reducing an electro-optical cross talk effect between sub-frames of said color image displayed on said display panel in said color display device caused by (i) a temporal electro-optical response of said display panel and (ii) a temporal profile of said light source, wherein said means (XTC) for reducing said electro-optical cross talk effect is configured for altering said drive signal (R′,G′,B′) to each of said plurality of picture elements in dependence on parameters of different spectra of said light source to compensate for said electro-optical cross talk.