Thursday, May 2025
02:30 PM - 02:50 PM
Room: LL20BC
Session: OLED Displays I
Lateral-Leakage Current Reduction in Tandem RGB OLED for Enhanced Low-Gray-Level Color Accuracy
Description:
In Tandem RGB OLED, charge generation layer (CGL) facilitates lateral leakage current (LLC), which can activate adjacent different colors, thereby degrading color purity, particularly at low luminance. To mitigate LLC, we introduced a novel p-dopant in the CGL. Our results demonstrate a fourfold reduction in color coordinate variation across luminance levels from 0.1 to 1000 nits, significantly enhancing color accuracy while maintaining OLED operating voltage, efficiency, and lifetime.