Light-emitting device

US11158679B2 · kind B2 · utility

Assignee

• SAMSUNG ELECTRONICS CO., LTD. · KR

Inventors

• Hyoyeon Kim · Hwaseong-si, KR
• Jimyoung Ye · Yongin-si, KR
• Yiseul Kim · Yongin-si, KR
• Byeongwook Yoo · Yongin-si, KR
• Jaehoon Hwang · Yongin-si, KR

Key dates

• Filing date: Nov 21, 2018
• Grant date: Oct 26, 2021
• Expiry date: Nov 21, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K50/171

Abstract

A light-emitting device includes: a plurality of first electrodes disposed according to a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel, respectively; a second electrode facing the plurality of first electrodes; a first emission layer disposed in the first sub-pixel and emitting first color light; a third emission layer disposed in the third sub-pixel and emitting third color light; a fourth emission layer disposed in the fourth sub-pixel and emitting near-infrared (NIR) light having a maximum emission wavelength of about 680 nm or more; and a first layer integrated with the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel.