公开(公告)号：US20250098431A1

公开(公告)日：2025-03-20

申请号：US18742773

申请日：2024-06-13

Applicant: Samsung Display Co., Ltd.

Inventor： WONKYU CHOE ,  YOONSEOK KA ,  SEHUN KIM ,  KYONGSUB KIM ,  Jaeyoul KIM

IPC: H10K59/122 ,  H10K59/12 ,  H10K59/38 ,  H10K59/80

Abstract: A display device is provided to include a base layer in which a pixel region and a peripheral region adjacent to the pixel region are defined, a pixel defining film which is provided on the base layer and in which a light emitting opening corresponding to the pixel region is defined, a light emitting element which is provided in the light emitting opening and generates first color light, and an encapsulation layer provided on the light emitting element, wherein the encapsulation layer includes a first inorganic encapsulation layer provided on the light emitting element, a polymer layer which is provided on the first inorganic encapsulation layer and includes a base resin and an organic acid derivative, an organic encapsulation layer provided on the polymer layer, and a second inorganic encapsulation layer provided on the organic encapsulation layer.

公开(公告)号：US20230137462A1

公开(公告)日：2023-05-04

申请号：US17860395

申请日：2022-07-08

Applicant: Samsung Display Co., Ltd.

Inventor： YOONSEOK KA ,  DONG CHAN KIM ,  JIYOUNG MOON ,  HAKCHOONG LEE ,  HAJIN SONG ,  JIHWAN YOON ,  JAEHOON HWANG

IPC: H01L51/00 ,  H01L51/50

Abstract: A light emitting element includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region which is disposed on the emission layer and includes an electron transport layer and an electron injection layer disposed on the electron transport layer, and a second electrode disposed on the electron transport region, wherein the electron injection layer includes a host represented by Formula A or Formula B, and a metal dopant, and the metal dopant includes Ag, Bi, Mg, Li, Yb, Cu, La, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, or Lu, thereby improving electron injection characteristics and having excellent or suitable luminous efficiency.