Light-emitting diode and method for preparing the same

US11581503B2 · kind B2 · utility

Assignees

• BEIJING BOE DISPLAY TECHNOLOGY CO., LTD. · CN
• BOE Technology Group Co., Ltd. · CN

Inventors

• Ruipeng Xu · Beijing, CN
• Lifu WANG · Beijing, CN
• Yanping Wang · Beijing, CN
• Peng Zhou · Suzhou, CN

Key dates

• Filing date: Mar 25, 2021
• Grant date: Feb 14, 2023
• Expiry date: Jun 17, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/361

Abstract

Provided is a light-emitting diode and a method for preparing the same. The light-emitting diode includes an anode, a hole transport layer, a perovskite light-emitting layer, an electron transport layer and a cathode stacked in sequence, in which the perovskite light-emitting layer includes a first sublayer and a second sublayer stacked in sequence, with a material for forming the first sublayer including an inorganic perovskite material, and with a material for forming the second sublayer being an organic perovskite material.