公开(公告)号：US11961945B2

公开(公告)日：2024-04-16

申请号：US17350949

申请日：2021-06-17

Applicant: Samsung Display Co., Ltd.

Inventor： Jun Bo Sim ,  Chang Hee Lee ,  Yun Hyuk Ko ,  Sang Ho Jeon ,  Jae Kook Ha

IPC: H01L33/44 ,  H01L25/075 ,  H01L25/16 ,  H01L33/00 ,  H01L33/62

CPC classification number: H01L33/44 ,  H01L25/0753 ,  H01L25/167 ,  H01L33/007 ,  H01L33/0075 ,  H01L33/0093 ,  H01L33/62 ,  H01L2933/0025

Abstract: A light emitting element includes: a light emitting stack pattern including a first semiconductor layer, an active layer, and a second semiconductor layer that are sequentially stacked along one direction; and an insulating film surrounding an outer surface of at least one of the first semiconductor layer, the active layer, and the second semiconductor layer. The insulating film including a zinc oxide (ZnO) thin film layer.

公开(公告)号：US12168732B2

公开(公告)日：2024-12-17

申请号：US18465881

申请日：2023-09-12

Applicant: Samsung Display Co., LTD.

Inventor： Jun Bo Sim ,  Hyo Jin Ko ,  Duk Ki Kim ,  Chang Hee Lee ,  Jae Kook Ha

IPC: C09D11/38 ,  C09D11/50 ,  C09K11/06 ,  H10K50/844 ,  H10K71/00

Abstract: A light emitting element ink and a method of manufacturing a display device are provided. The light emitting element ink includes a light emitting element solvent, a light emitting element dispersed in the light emitting element solvent, the light emitting element including a plurality of semiconductor layers and an insulating film surrounding outer surfaces of the semiconductor layers, a thickener dispersed in the light emitting element solvent, wherein a compound of the thickener includes a functional group capable of forming a hydrogen bond together with a compound of the light emitting element solvent or another compound of the thickener and the compound of the thickener is represented by Chemical Formula 1.

公开(公告)号：US12132140B2

公开(公告)日：2024-10-29

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

CPC classification number: H01L33/005 ,  B82B3/0052 ,  C09D11/033 ,  C09D11/50 ,  C09D11/52 ,  H01L27/156 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44 ,  H01L2933/0016

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：US11728464B2

公开(公告)日：2023-08-15

申请号：US16935095

申请日：2020-07-21

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Won Park ,  Chang Hee Lee ,  Duk Ki Kim ,  Yun Ku Jung ,  Yun Hyuk Ko ,  Jae Kook Ha

IPC: H01L33/56 ,  H01L33/36 ,  C08G61/10 ,  C08L47/00 ,  C08L65/02 ,  H01L33/00

CPC classification number: H01L33/56 ,  C08G61/10 ,  C08L47/00 ,  C08L65/02 ,  H01L33/0095 ,  H01L33/36 ,  C08G2261/3142 ,  H01L2933/005

Abstract: A light emitting element includes a first semiconductor layer; an active layer on the first semiconductor layer; a second semiconductor layer on the active layer; an insulating film surrounding an outer peripheral surface of each of the first semiconductor layer, the active layer and the second semiconductor layer; and a polymer film including a polymer chain and on at least a portion of a surface of the insulating film.

公开(公告)号：US11515481B2

公开(公告)日：2022-11-29

申请号：US15863768

申请日：2018-01-05

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hun Kim ,  Chang Woong Chu ,  Duk Ki Kim ,  Dong Woo Shin ,  Jae Kook Ha

IPC: H01L51/00 ,  G09G3/3208 ,  C07D251/12 ,  C07D239/24 ,  C07D209/82 ,  H01L51/50

Abstract: A composition for forming organic film, a display device utilizing the composition, and a method of manufacturing the display device are provided. The composition for forming an organic film includes a solvent; and a compound of Formula 1: ArR)k.  Formula 1

公开(公告)号：US11935876B2

公开(公告)日：2024-03-19

申请号：US17241943

申请日：2021-04-27

Applicant: Samsung Display Co., Ltd.

Inventor： Jun Bo Sim ,  Duk Ki Kim ,  Yong Hwi Kim ,  Hyo Jin Ko ,  Chang Hee Lee ,  Chan Woo Joo ,  Jae Kook Ha ,  Na Mi Hong

IPC: H01L25/075 ,  B82B3/00 ,  C09D11/037 ,  C09D11/322 ,  C09D11/38 ,  C09D11/50 ,  H01L27/12 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44 ,  H01L33/62

CPC classification number: H01L25/0753 ,  B82B3/0052 ,  C09D11/037 ,  C09D11/322 ,  C09D11/38 ,  C09D11/50 ,  H01L27/1214 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44 ,  H01L33/62 ,  H01L2933/0066

Abstract: A light-emitting element ink, a display device, and a method of fabricating the display device are provided. The light-emitting element ink includes a light-emitting element solvent, light-emitting elements dispersed in the light-emitting element solvent, each of the light-emitting elements including a plurality of semiconductor layers and an insulating film that surrounds parts of outer surfaces of the semiconductor layers, and a surfactant dispersed in the light-emitting element solvent, the surfactant including a fluorine-based and/or a silicon-based surfactant.

公开(公告)号：US11787964B2

公开(公告)日：2023-10-17

申请号：US17233288

申请日：2021-04-16

Applicant: Samsung Display Co., Ltd.

Inventor： Jun Bo Sim ,  Hyo Jin Ko ,  Duk Ki Kim ,  Chang Hee Lee ,  Jae Kook Ha

IPC: C09D11/38 ,  C09D11/50 ,  H10K50/844 ,  H10K71/00 ,  C09K11/06

CPC classification number: C09D11/38 ,  C09D11/50 ,  H10K50/844 ,  H10K71/00 ,  C09K11/06 ,  C09K2211/10

Abstract: A light emitting element ink and a method of manufacturing a display device are provided. The light emitting element ink includes a light emitting element solvent, a light emitting element dispersed in the light emitting element solvent, the light emitting element including a plurality of semiconductor layers and an insulating film surrounding outer surfaces of the semiconductor layers, a thickener dispersed in the light emitting element solvent, wherein a compound of the thickener includes a functional group capable of forming a hydrogen bond together with a compound of the light emitting element solvent or another compound of the thickener and the compound of the thickener is represented by Chemical Formula 1.

公开(公告)号：US12243963B2

公开(公告)日：2025-03-04

申请号：US17319602

申请日：2021-05-13

Applicant: Samsung Display Co., LTD.

Inventor： Hyo Jin Ko ,  Duk Ki Kim ,  Jun Bo Sim ,  Na Mi Hong ,  Yong Hwi Kim ,  Chang Hee Lee ,  Jae Kook Ha

IPC: H01L33/26 ,  C09D11/38 ,  C09D11/50 ,  C09K11/02 ,  G02F1/167 ,  H01L33/42 ,  H01L33/50

Abstract: A light emitting element ink comprises a light emitting element solvent, a light emitting element dispersed in the light emitting element solvent, the light emitting element including a plurality of semiconductor layers, and an insulating film surrounding outer surfaces of the plurality of semiconductor layers, and a thickener dispersed in the light emitting element solvent, wherein the thickener includes a compound represented by Chemical Structural Formula 1 as a polyol-based compound capable of forming a hydrogen bond with the light emitting element solvent or another thickener, and the thickener has a boiling point in a range of about 200° C. to about 450° C.

公开(公告)号：US11949046B2

公开(公告)日：2024-04-02

申请号：US17395950

申请日：2021-08-06

Applicant: Samsung Display Co., LTD.

Inventor： Se Hun Kim ,  Chang Hee Lee ,  Yun Hyuk Ko ,  Duk Ki Kim ,  Jun Woo Park ,  Soo Ho Lee ,  Jae Kook Ha ,  Yun Ku Jung

IPC: H01L33/00 ,  H01L25/16 ,  H01L33/44 ,  H01L33/20

CPC classification number: H01L33/44 ,  H01L25/167 ,  H01L33/0095 ,  H01L33/007 ,  H01L33/0093 ,  H01L33/20 ,  H01L2933/0025

Abstract: A light-emitting element includes a first semiconductor layer doped to have a first polarity, a second semiconductor layer doped to have a second polarity different from the first polarity, a light-emitting layer disposed between the first and second semiconductor layers, a shell layer formed on side surfaces of the first semiconductor layer, the light-emitting layer, and the second semiconductor layer, the shell layer including a divalent metal element, and an insulating film covering an outer surface of the shell layer and surrounding the side surface of the light-emitting layer.

公开(公告)号：US11456439B2

公开(公告)日：2022-09-27

申请号：US17031778

申请日：2020-09-24

Applicant: Samsung Display Co., Ltd.

Inventor： Yun Hyuk Ko ,  Chang Hee Lee ,  Jin Oh Kwag ,  Keun Kyu Song ,  Yun Ku Jung ,  Sung-Chan Jo ,  Jae Kook Ha

IPC: H01L51/52 ,  H01L27/32 ,  H01L33/30 ,  H01L33/32

Abstract: A light emitting element and a display device including the same are provided. The light emitting element includes a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, a protective layer surrounding an outer surface of at least one of the first semiconductor layer, the second semiconductor layer, and the active layer, and an insulating layer surrounding an outer surface of the protective layer. A surface of at least one of the first semiconductor layer, the second semiconductor layer, and the active layer includes a first lattice point, wherein the protective layer includes a first atom and a second atom, and wherein the first atom of the protective layer is at the first lattice point.