International Display Workshops General Incorporated Association

13:00 〜 13:20

[OLED2-1 (Invited)] All Inkjet-printed Cadmium-Free Electroluminescent-Quantum Dot Display at 217 ppi Resolution

*Jaekook Ha1、Myoungjin Park1、Jin-goo Kang1、Sehun Kim1、Yeo-Geon Yoon1、Changhee Lee1 (1.Samsung Display Co., Ltd. (Korea))

Quantum dot light-emitting diodes, Cadmium-free, Ink formulation, Top emission, Ink-jet printing

https://doi.org/10.36463/idw.2022.0434

We demonstrate the world's first all-inkjet-printed Cd-free EL-QD display by successfully overcoming the fabrication- and performance-limiting factors in solution processing. In particular, the intermixing between the stacked layers within the device was eliminated. A study on the critical factors affecting the device performance, including the influence of ETL solvent on quantum dot, is also discussed in detail.