Line scanning in a display

Device for scanning a number of lines in a display within a frame using luminance values within a frame and comprising:

• at least one conversion unit for converting received luminance values into driving luminance information including subfields, and supplying the subfields to a line driving unit,
• a line driving unit arranged to scan each line consecutively with the luminance information of each pixel on the display in a number of scanning cycles equivalent to the number of subfields existing for driving the pixels, and
• a control unit arranged to provide variation of the selection of subfield from line to line for each scanning cycle such that no two consecutive line scans use the same subfield and no line is scanned using the same subfield twice during the set of scanning cycles, such that image flicker caused by the different sizes of the subfields is reduced.