A method of mapping a four primary input signal to sets of four sub-pixels of a display device, the method including sub-sampling the input samples of the four primary input signal by assigning the first, second and third input signals of a particular input sample to the first, second and third sub-pixels,...http://www.google.es/patents/US7932883?utm_source=gb-gplus-sharePatente US7932883 - Sub-pixel mapping
