Organic electroluminescent device

US12185562B2 · kind B2 · utility

Assignee

• GU'AN YEOLIGHT TECHNOLOGY CO., LTD. · CN

Inventors

• Lixue Guo · Laishui, CN
• Yingguang Zhu · Gu'an, CN
• Guohui Zhang · Beijing, CN
• Yonglan Hu · Laishui, CN
• Jing Xie · Princeton, US

Key dates

• Filing date: Dec 17, 2020
• Grant date: Dec 31, 2024
• Expiry date: Oct 7, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549

Abstract

An organic electroluminescent device includes, from bottom to top, a substrate, a first electrode and a light-emitting component in sequence, where the light-emitting component is disposed on the first electrode, and a secondary electrode structure is disposed on an upper side surface of the light-emitting component and includes a sub-electrode, a dielectric material layer and an outer layer electrode, where the dielectric material layer is disposed between the sub-electrode and the outer layer electrode, the sub-electrode is in contact with the light-emitting component, the dielectric material layer and the sub-electrode completely cover a light-emitting region of the light-emitting component, the outer layer electrode completely covers the dielectric material layer, and in a non-light-emitting region on the periphery of the light-emitting component, the outer layer electrode is electrically connected to the sub-electrode.