a plurality of independent elementary data signals each of these elementary data signals being applied to the cell during a subframe the number of subframes is higher than two and depends on the refreshing rate that can be used in the amoled c l designates the amplitude of the data signal of a cell for displaying a grayscale level l in a conventional method like in fig2 sf i designates the i th subframe in a video frame c u2032 sf i designates the amplitude of the elementary data signal for a subframe sf i of the video frame d i designates the duration of the subframe sf i c min is a first threshold that represents a value of the data signal above which the working of the cell is considered as good fast write good stability c black designates the amplitude of the elementary data signal to be applied to a cell for disabling light emission c black is lower than c min fig5 can illustrate the method of the invention in this example the original video frame is divided into 6 subframes sf 1 to sf 6 with respective durations d 1 to d 6 6 independent elementary data signals c u2032 sf 1 c u2032 sf 2 c u2032 sf 3 c u2032 sf 4 c.