公开(公告)号：US20250072277A1

公开(公告)日：2025-02-27

申请号：US18814267

申请日：2024-08-23

Applicant: Samsung Display Co., LTD.

Inventor： SEULONG KIM ,  YOUNGHO KIM ,  BUM SUK LEE ,  SEOKJAE LEE ,  JAHYUN IM

IPC: H10K85/30 ,  C09K11/02 ,  C09K11/06 ,  H10K50/12 ,  H10K50/19 ,  H10K50/858 ,  H10K85/60

Abstract: A light emitting element of an embodiment includes a first electrode, a first light emitting unit on the first electrode and including a first emission layer, a charge generation unit on the first light emitting unit, a second light emitting unit on the charge generation unit and including a second emission layer, a second electrode on the second light emitting unit, and a capping layer on the second electrode, wherein the first light emitting unit includes a first compound including a first moiety, the second light emitting unit includes a second compound including a second moiety, the capping layer includes a third compound including a third moiety, and the first moiety, the second moiety and the third moiety each independently includes one among benzothiophene, thienopyridine, thienopyrimidine, thienopyridazine, thienopyrazine, thienotriazine, thienotetrazine, benzothiazole, thiazolopyridine, thiazolopyrimidine, thiazolopyridazine, thiazolopyrazine, thiazolotriazine, thiazoloetetrazine, benzothiadiazole, thiadiazolepyridine, thiadiazolepyrimidine, thiadiazolepyridazine, thiadiazolepyrazine, thiadiazoletriazine, and thiadiazoletetrazine.