P‐6: Power‐Saving Solution for AMOLED Displays Based on Cathode Segmentation

Currently, AMOLED is mainly manufactured using the FMM process, and the cathode of AMOLED is designed as a single piece limited by factors such as technical and cost. When displaying a frame of an image, the ELVSS driving voltage of the panel is the voltage value corresponding to the high gray level, and there is a waste of power consumption. Recently, a photolithography technology without FMM has begun to develop, which makes cathode partition possible and provides a direction for saving power consumption of AMOLED panel. This paper establishes a power consumption model for the cathode partition and calculates the power consumption of different region using signal statistical methods. The results show that the power consumption of AMOLED decreases as the number of cathode partition increases, and the power consumption can be saved by 8.68% at 64partition. Meanwhile, the visual effects of different cathode partition schemes are simulated and verified, and the human factors experiment shows that there is no obvious loss in subjective visual effects.