Display panel having an optical coupling layer and manufacturing method thereof electroluminescent device and display device

US11251407B2 · kind B2 · utility

Assignee

• BOE Technology Group Co., Ltd. · CN

Inventors

• Chao Kong · Beijing, CN
• Kening ZHENG · Beijing, CN

Key dates

• Filing date: Jun 8, 2018
• Grant date: Feb 15, 2022
• Expiry date: Oct 18, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/3026

Abstract

A display panel and a manufacturing method thereof, an electroluminescent device, and a display device are disclosed. The display panel includes: a base substrate; a plurality of electroluminescent elements on the base substrate, each of the plurality of electroluminescent elements including a light emitting layer and a transparent electrode layer on a light exit side of the light emitting layer; and a first optical coupling layer on a side of the plurality of electroluminescent elements where the transparent electrode layer is located, and being coupled to at least a part of the transparent electrode layer. The first optical coupling layer is conductive.