公开(公告)号：US20240164130A1

公开(公告)日：2024-05-16

申请号：US18535417

申请日：2023-12-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yunku JUNG ,  Minki NAM ,  Hyunmi DOH ,  Yunhyuk KO ,  Sungwoon KIM ,  Jaehoon KIM ,  Myoungjin PARK ,  JAE HONG PARK ,  Junwoo PARK

IPC: H10K50/115 ,  C09K11/06 ,  H10K50/00 ,  H10K50/12 ,  H10K50/844 ,  H10K50/86 ,  H10K59/38 ,  H10K71/00 ,  H10K85/30 ,  H10K85/60

CPC classification number: H10K50/115 ,  C09K11/06 ,  H10K50/00 ,  H10K50/12 ,  H10K50/844 ,  H10K50/865 ,  H10K59/38 ,  H10K71/00 ,  H10K85/30 ,  H10K85/631 ,  C09K2211/18 ,  H10K2102/103

Abstract: A quantum dot composition includes a quantum dot, a ligand to bind to a surface of the quantum dot, an additive having an amine group, and a precursor comprising an organometallic compound, the composition forming a modified quantum dot having a reformed surface characteristic. A light emitting element including the modified quantum dot may have improved lifespan, luminous efficiency, and material stability.

公开(公告)号：US20220344588A1

公开(公告)日：2022-10-27

申请号：US17697663

申请日：2022-03-17

Applicant: Samsung Display Co., Ltd.

Inventor： SANGHEE YU ,  GYUBONG KIM ,  HOI-LIM KIM ,  SUNGWOON KIM ,  HYUNMI DOH ,  JAE HONG PARK ,  SEIHWAN AHN

IPC: H01L51/00 ,  C09K11/02

Abstract: An electron transport composition includes a metal oxide and a photoacid generator, wherein the photoacid generator has at least one of a halogenated triazine-based compound or an oxime sulfonate-based compound. When the electron transport composition is applied to a light-emitting element, the light-emitting element may exhibit improved luminous efficiency characteristics and element lifespan characteristics.

公开(公告)号：US20220149306A1

公开(公告)日：2022-05-12

申请号：US17450827

申请日：2021-10-13

Applicant: Samsung Display Co., Ltd.

Inventor： JAE HONG PARK ,  JAEHOON KIM ,  HYUNMI DOH ,  MYOUNGJIN PARK

IPC: H01L51/50 ,  H01L27/32

Abstract: Provided is a light emitting element and a display device including a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region and including quantum dots, an electron transport region on the emission layer, and a second electrode on the electron transport region, wherein at least one selected from the hole transport region and the electron transport region includes an antioxidant, thereby exhibiting increased luminous efficiency.

公开(公告)号：US20210091324A1

公开(公告)日：2021-03-25

申请号：US16892532

申请日：2020-06-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yunku JUNG ,  Hyunmi DOH ,  JAE HONG PARK ,  Dongwoo SHIN ,  Jaekook HA ,  SUNGWOON KIM ,  MINKI NAM

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/00 ,  C09K11/06

Abstract: A quantum dot composition includes a quantum dot, and a ligand bonded to a surface of the quantum dot, wherein the ligand includes a body part including a charge transport moiety, and a head part bonded to the surface of the quantum dot. The quantum dot composition according may be applied to a light emitting diode and a display device to provide increased luminous efficiency and device life of the light emitting diode and the display device.