Patent ID: 6201519
Filing Date: 2001-03-13
Classification: G09G

Abstract:
Process for addressing cells arranged as a matrix array, each cell being situated at the intersection of a line and a column, the array having line inputs and column inputs for displaying grey levels NG defined by video words making up a digital video signal, the column inputs receiving control words for this column, each bit of a control word triggering or not triggering, depending on its state, the selection of the cell of the addressed line and of the corresponding column for a time proportional to the weight of this bit within the word, comprising the steps of:coding the grey levels NG1 and NG2 relating to an item of information regarding the luminance of two cells situated in same column and in two adjacent lines I and I+1 as a first control word corresponding to a common value VC and as a second control word and a third control word corresponding to specific values, VS1 and VS2, such that:NG1=VS1+VCNG2=VS2+VC; andtransmitting the bits of the first control word on the column inputs by simultaneously addressing the two lines I and I+1 in respect of the selection of the corresponding cells.