Organic-light-emitting-diode device and fabricating method thereof, displaying base plate and displaying device

US11616207B2 · kind B2 · utility

Assignees

• Chengdu BOE Optoelectronics Technology Co., Ltd. · CN
• BOE Technology Group Co., Ltd. · CN

Inventors

• Wei Zhang · Beijing, CN
• Chao Kong · Beijing, CN
• Yifan Yang · Beijing, CN
• Long Chen · Beijing, CN
• Lingjun Dai · Beijing, CN
• De Yuan · Beijing, CN

Key dates

• Filing date: May 26, 2021
• Grant date: Mar 28, 2023
• Expiry date: Sep 17, 2041

Classification

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

Abstract

An organic-light-emitting-diode device and a fabricating method thereof, a displaying base plate and a displaying device, wherein the organic-light-emitting-diode device includes a substrate, and an anode layer, an organic functional layer and a cathode layer that are provided in stacking on one side of the substrate, wherein the organic functional layer includes a first functional layer, a second functional layer and a light emitting layer that are provided in stacking, and the first functional layer is provided closer to the anode layer; and a HOMO energy level of the second functional layer is deeper than both of a HOMO energy level of the first functional layer and a HOMO energy level of a host material of the light emitting layer.