TECHNIQUES FOR AVOIDING AND REMEDYING DC BIAS BUILDUP ON A FLAT PANEL VARIABLE REFRESH RATE DISPLAY

摘要

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. Next, it comprises determining a number of re-scanned frames to insert between the current input frame and a subsequent input frame, wherein the re-scanned frames repeat the input frame, and wherein the number of re-scanned frames depends on the minimum refresh interval (MRI) of the display panel. Further, it comprises calculating respective intervals at which to insert the re-scanned frames between the current input frame and the subsequent input frame. Subsequently, it comprises determining if a charge accumulation in pixels of the display panel has crossed over a predetermined threshold value. Finally, responsive to a determination that the charge accumulation has crossed over a predetermined threshold value, it comprises performing a counter-measure to remediate the charge accumulation.

主权项

1. A method for driving a display panel having a variable refresh rate, said method comprising:
receiving a current input frame from an image source; determining a number of re-scanned frames to insert between said current input frame and a subsequent input frame, wherein said re-scanned frames repeat said input frame, and wherein said determining depends on a minimum refresh interval (MRI) of said display panel; calculating respective intervals at which to insert said re-scanned frames between said current input frame and said subsequent input frame; determining if a charge accumulation in pixels of said display panel has crossed over a predetermined threshold value; and responsive to a determination that said charge accumulation has crossed over a predetermined threshold value, performing a counter-measure to remediate said charge accumulation.