公开(公告)号：US20240107789A1

公开(公告)日：2024-03-28

申请号：US18342510

申请日：2023-06-27

Applicant: Samsung Display Co., Ltd.

Inventor： SANGHEE YU ,  GYEONGHEON KIM ,  HOI-LIM KIM ,  Dongsun YOO ,  GYUBONG KIM ,  YONGSUB SHIM

IPC: H10K50/11 ,  C09K11/06 ,  H10K85/30 ,  H10K85/60

CPC classification number: H10K50/11 ,  C09K11/06 ,  H10K85/346 ,  H10K85/6574 ,  H10K85/6576 ,  C09K2211/1092 ,  H10K2102/351

Abstract: A light emitting element may include: a first electrode; a second electrode facing the first electrode; at least one functional layer disposed between the first electrode and the second electrode; and a capping layer disposed on the second electrode and including a fused compound represented by Formula 1 below. The capping layer possesses high refractive characteristics.

公开(公告)号：US20250031516A1

公开(公告)日：2025-01-23

申请号：US18639830

申请日：2024-04-18

Applicant: Samsung Display Co., Ltd.

Inventor： HYERIM KIM ,  GYEONGHEON KIM ,  HANBYUL JANG ,  HEEJIN KIM ,  JIHYUN SEO

IPC: H10K50/12 ,  C09K11/06 ,  H10K50/13 ,  H10K85/30 ,  H10K101/30

Abstract: A display device including a circuit layer and a display element layer on the circuit layer and including a light emitting element is provided. The light emitting element includes a first electrode, a first emission layer which includes a first dopant and is provided on the first electrode, a second emission layer which includes a second dopant different from the first dopant and is provided on the first emission layer, and a second electrode provided on the second emission layer. A triplet excited state energy level (T1) of the second dopant may be higher than that of the first dopant, and the thickness of the first emission layer is about 10% to about 50% based on 100% of the sum of the thickness of the first emission layer and the thickness of the second emission layer. The display device may have improved side-surface luminance ratio and excellent display efficiency.