A method for driving a display panel having a variable refresh rate is disclosed. The method comprises receiving a current input frame from an image source. It also comprises determining a first number of re-scanned frames to insert between the current input frame and a subsequent input frame, wherein the re-scanned frames repeat the current input frame, and wherein the determining depends on a minimum refresh interval (MRI) of the display panel. Further, it comprises calculating intervals to insert the first number of re-scanned frames between the current input frame and the subsequent input frame. Further, it comprises scanning the current input frame for display on the display panel. Finally it comprises inserting the first number of re-scanned frames at the respective intervals between the current input frame and the subsequent input frame from the image source, wherein the inserting is operable to reduce charge accumulation in the display panel.