公开(公告)号：US20230002313A1

公开(公告)日：2023-01-05

申请号：US17836214

申请日：2022-06-09

Applicant: Samsung Display Co., LTD.

Inventor： Sang Hee YU ,  Hoi-Lim KIM ,  Jae Hong PARK ,  Gyu Bong KIM ,  Seung Uk NOH ,  Ju Yon LEE

IPC: C07C309/73 ,  C07C309/65 ,  C09K11/08 ,  C09K11/58 ,  C09K11/62 ,  C09K11/64 ,  C09K11/66

Abstract: A light emitting element according to an embodiment includes a first electrode, a second electrode overlapping the first electrode, an emission layer disposed between the first electrode and the second electrode, and an electron transport region disposed between the emission layer and the second electrode, wherein the electron transport region includes a thermal acid generator (TAG). A method of manufacturing a light emitting element is also provided.

公开(公告)号：US20220093817A1

公开(公告)日：2022-03-24

申请号：US17476993

申请日：2021-09-16

Applicant: Samsung Display Co., LTD.

Inventor： Hyo Jin KO ,  Duk Ki KIM ,  Yong Hwi KIM ,  Jun Bo SIM ,  Na Mi HONG ,  Jong Hyuk KANG ,  Gyu Bong KIM ,  Hoi Lim KIM ,  Sae Na YUN ,  Chang Hee LEE ,  Hyun Deok IM ,  Eun A CHO ,  Jae Kook HA

IPC: H01L33/00 ,  H01L27/15 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44 ,  B82B3/00 ,  C09D11/52 ,  C09D11/50 ,  C09D11/033

Abstract: An ink includes a solvent, and light-emitting elements dispersed in the solvent, each of the light-emitting elements comprising semiconductor layers and an insulating film partially surrounding outer surfaces of the semiconductor layers, wherein the solvent has Hansen solubility parameters of a polarity parameter between about 4 and about 9 and a hydrogen bonding parameter between about 6 and about 11.

公开(公告)号：US20240065095A1

公开(公告)日：2024-02-22

申请号：US18119986

申请日：2023-03-10

Applicant: Samsung Display Co., LTD.

Inventor： Sang Hee YU ,  Gyu Bong KIM ,  Hoi Lim KIM ,  Se Hun KIM ,  Ju Yon LEE

IPC: H10K85/60

CPC classification number: H10K85/60 ,  H10K50/16

Abstract: Embodiments provide a composition for an electron transporting layer and a method for manufacturing a display device including the same. The composition includes inorganic particles, peroxide, a hydrocarbon compound, and a solvent. A method for manufacturing a display device includes forming a first electrode on a substrate, forming a light emitting layer on the first electrode, forming an electron transporting layer on the light emitting layer, and forming a second electrode on the electron transporting layer, wherein the electron transporting layer is formed of a composition for an electron transporting layer including inorganic particles, peroxide, a hydrocarbon compound, and a solvent.

公开(公告)号：US20220139871A1

公开(公告)日：2022-05-05

申请号：US17451284

申请日：2021-10-18

Applicant: Samsung Display Co., Ltd.

Inventor： Na Mi HONG ,  Hyo Jin KO ,  Duk Ki KIM ,  Jun Bo SIM ,  Chang Hee LEE ,  Jae Kook HA ,  Gyu Bong KIM ,  Hoi Lim KIM

IPC: H01L23/00 ,  H01L25/16 ,  C09D11/033 ,  C09K11/62

Abstract: A light-emitting element ink and a method of manufacturing a display device using the light-emitting element ink are provided. The light-emitting element ink comprises a solvent, a dispersant mixed with the solvent, and a plurality of light-emitting elements dispersed in the solvent, each of the light-emitting elements including a plurality of semiconductor layers and an insulating film surrounding parts of outer surfaces of the semiconductor layers, wherein the dispersant includes an aqueous dispersant or an organic dispersant, if the dispersant is the aqueous dispersant, the solvent has a hydrogen bonding parameter, of Hansen's solubility parameters, of less than 7, and if the dispersant is the organic dispersant, the solvent has a hydrogen bonding parameter, of Hansen's solubility parameters, of 7 or greater.