Thin film electroluminescent device, preparation method thereof, and electronic device

US11818908B2 · kind B2 · utility

Assignee

• WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.

Inventors

• Xu Wang · Hubei, CN
• Yue Zhang · Nashua, US
• Xianjie Li · Nanhu, CN
• Munjae LEE · Hubei, CN
• Tao Li · Savage, US
• Junyou Pan · Frankfurt am Main, DE
• Jiahui TAN · Hubei, CN
• Xi Yang · Mason, US

Key dates

• Filing date: Sep 29, 2019
• Grant date: Nov 14, 2023
• Expiry date: Jun 5, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K85/654

Abstract

A thin film electroluminescent device, a preparation method thereof, and an electronic device are provided. The thin film electroluminescent device includes a first electrode, a functional structural layer disposed on the first electrode, a second electrode disposed on the functional structural layer, and a cover layer disposed on a side of the second electrode away from the first electrode. The cover layer includes an ionic compound having a chemical formula of AX2, wherein A is selected from divalent metal, and X is selected from halogen.