Tuesday, May 2025

03:40 PM - 04:00 PM

Room: LL21EF

Session: EL-QLED III

Advancing Inkjet-Printed Electroluminescent Quantum-Dot Displays Toward Commercialization: Improving Blue EL-QD Lifetime

Invited

• 

  Principal Engineer

  Sehun Kim , PhD

  Samsung Display Co., Ltd.

Description:

One of the primary challenges in commercializing electroluminescent quantum dot displays is the limited operational lifetime of blue-emitting devices. To address this, we explored various strategies focusing on optimization of both materials and inkjet printing processes. The efficiency and lifetime of blue EL-QD devices are significantly improved through ligand engineering of ZnSeTe QDs and defect control in ZnMgO nanoparticles. We successfully demonstrate an all inkjet-printed 18.2-inch full-color EL-QD display with a resolution of 202 ppi.