Light emitting device and fabrication method thereof, and electronic apparatus

US11211574B2 · kind B2 · utility

Assignees

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

Inventors

• Junxiang Lu · Beijing, CN
• Moli Sun · Beijing, CN
• Guiguang Hu · Beijing, CN
• Chengjun Liu · Beijing, CN
• Shaojun Sun · Beijing, CN
• Junyao Yin · Beijing, CN
• Xia Chen · Catonsville, US
• Yanfei Chi · Beijing, CN

Key dates

• Filing date: Feb 15, 2019
• Grant date: Dec 28, 2021
• Expiry date: Nov 8, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K50/11

Abstract

A light emitting device and a fabrication method thereof and an electronic apparatus are disclosed. The light emitting device includes: a first electrode, a second electrode, an electroluminescent layer and a quantum dot light conversion layer; the second electrode is provided on the first electrode; the electroluminescent layer and the quantum dot light conversion layer are provided between the first electrode and the second electrode; and the quantum dot light conversion layer is provided at a light output side of the electroluminescent layer, and generates, under being excited by light from the electroluminescent layer, light having a same color as that of light from the electroluminescent layer and having a wavelength range narrower than that of the light from the electroluminescent layer.