Patent ID: 8564511

Claim:
Method for displaying an image on an active matrix organic light emitting display where a video frame is divided in two groups of subframes, wherein a data signal is applied to each cell of the active matrix organic light emitting display for displaying a first grayscale level of a pixel of the image during a first group of sub-frames and for displaying a second or further grayscale level of the same pixel of the image during a second or further groups of sub-frames by dividing the subframes of a frame into the first group of sub-frames and at second or further groups of sub-frames, the first group of sub-frames and the at second or further groups of sub-frames are constituting a-the video frame, each group of sub-frames is divided into a plurality of sub-frames, wherein corresponding sub-frames of two groups of sub-frames have similar but not automatically the same duration, the first group of sub-frames and the second group or the further grows of sub-frames form each a complete image on the display, and the data signal of a cell comprises plural independent elementary data signals, each of said elementary data signals being applied to the cell during a sub-frame and the grayscale level displayed by the cell during the respective group of sub-frames depending on the amplitude of the elementary data signals and the duration of the sub-frames.