Patent ID: 6404440
Filing Date: 2002-06-11
Classification: G09G

Abstract:
Process for addressing cells of a plasma panel 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 defined by video words making up a digital video signal, the column inputs each receiving a control word for this column corresponding to the video word relating, for this column, to the addressed line, this word being made up of n bits transmitted sequentially, each bit 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, characterized in that it comprises a step effecting a transcoding of the video words into column control words such that the number of bits of the column control words is greater than that of the video words and such that different column control words having different positional bit values set are used for coding the same grey level of the video signal whereby the same grey level associated with different cells can be triggered for different time periods.