Light emission control method and display device having different display orders capable of reducing artifacts

A light emission control method to be implemented by a driver circuit and for controlling a display, the display including a plurality of light emitting elements that are divided into a plurality of display sets, said light emission control method comprising steps of:

• (A) generating a number (M) of sub-frames based on an image frame, where
• M is an integer no less than two,
• the image frame corresponds to a display time period, and contains frame gray values of the plurality of light emitting elements,
• the display time period includes a number (M) of display time intervals,
• each of the number (M) of sub-frames contains partial gray values of the plurality of light emitting elements, and
• with respect to each of the plurality of light emitting elements, the frame gray value of the light emitting element is equal to a sum of the partial gray values of the light emitting element that are respectively contained in the number (M) of sub-frames, and the partial gray value of the light emitting element that is contained in an (m−1)th one of the number (M) of sub-frames is no less than the partial gray value of the light emitting element that is contained in an mth one of the number (M) of sub-frames, in which 2≤m≤M;
• (B) determining a display order of the number (M) of sub-frames in the number (M) of display time intervals, where
• the display order indicates, with respect to each of the plurality of display sets, a one-to-one corresponding relationship between the number (M) of sub-frames and the number (M) of display time intervals,
• the one-to-one corresponding relationships indicated by the display order with respect to the plurality of display sets are different from each other, and
• in the one-to-one corresponding relationships indicated by the display order with respect to at least two of the plurality of display sets, a first one of the number (M) of sub-frames corresponds to different ones of the number (M) of display time intervals;
• and
• (C) in each of the number (M) of display time intervals, controlling each of the plurality of display sets to display one of the number (M) of sub-frames that corresponds to the display time interval according to the one-to-one corresponding relationship indicated by the display order with respect to the display set.