Proceedings of the International Display Workshops Volume 31 (IDW '24)
Dec 4 - Dec 6, 2024Sapporo Convention Center
Proceedings of the International Display Workshops Volume 31 (IDW '24)
Dec 4 - Dec 6, 2024Sapporo Convention Center
[OLED1-1(Invited)]Effective Control of Lateral Current by Hole Transport Materials
*Ji-Dong Seo1, Su-Hwan Na1, You-Hyun Kim2, Leo Weegels2, Christian Eickhoff2, Falk May2, Jens Engelhart2, Sebastian Meyer2, Michele Ricks3, Joachim Kaiser2(1. Merck Performance Materials Ltd. (Korea), 2. Merck KGaA (Germany), 3. EMD Performance Materials (United States of America))
Keywords:
OLED,lateral leakage current,crosstalk,hole transport material (HTM)
The lateral current flowing horizontally from an active pixel to neighboring non-active sub-pixels can cause crosstalk in OLED panels. We investigated lateral current from OLED devices and present newly developed hole transport materials (HTM) that effectively suppress this current, preventing sub-pixel crosstalk without compromising device parameters such as driving voltage, lifetime and power consumption.