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：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：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.