A Novel Method to Reduce Luminance Variation Due to IR-drop in Active Matrix OLED Displays

In this paper, a new compensation method to reduce luminance variation due to IR-drop in active matrix OLED displays is proposed. This paper decomposes the IR-drop into global IR-drop and local IR-drop, and then estimates the amount of them. The proposed method cancels the IR-drop using the estimated IR-drop. In experimental results, the proposed method decreases the maximum difference of luminance due to the local and global IR-drop by 95.2% and 93.96% respectively. In addition, when the global and local IR-drops are occurred simultaneously, the proposed method suppresses the luminance error between the expected and the measured by 99.32%.