Patent ID: 7773161

Claim:
Method for controlling a display device having a plurality of elements corresponding to the color components of pixels of a video picture, said method comprising the steps of: processing video picture data, said video picture data comprising video level pixel data for each color component; converting said pixel data into a sub-field code word in which to each bit of the sub-field code word a certain duration is assigned during which the corresponding element of the pixel is activated for light output, hereinafter called sub-field, wherein for a sub-field coding process, a specific code is utilized in which by corresponding bit entries it is avoided that in a time period which corresponds to the frame duration, hereinafter called frame period, a sub-field is inactivated between two activated sub-fields and in which it is avoided that in a frame period a sub-field is activated between two inactivated sub-fields, thereby defining an incremental code ordering for the sub-fields in said frame period, and wherein the duration of each subfield in the frame period is different from the durations of all other sub-fields in the frame period, organizing the sub-fields of the frame period in two consecutive groups, wherein the odd numbered sub-fields, according to the incremental code ordering are grouped in one group and the even numbered sub-fields according to the incremental code ordering are grouped in another group, thereby defining a final ordering of the sub-fields in said frame period.