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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
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.
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Patent Agency Ranking
公开(公告)号：US12191417B2
公开(公告)日：2025-01-07
申请号：US17320925
申请日：2021-05-14
Applicant: Samsung Display Co., LTD.
Inventor： Chang Hee Lee , Dong Uk Kim , Se Hun Kim , Hyo Jin Ko , Dong Hoon Kwak , Young Il Kim , Ji Yoon Kim
Abstract: A light emitting element includes a first surface corresponding to an end of the light emitting element, a second surface corresponding to another end of the light emitting element, a first semiconductor layer adjacent to the first surface, the first semiconductor layer including a first type of semiconductor, a second semiconductor layer adjacent to the second surface, the second semiconductor layer including a second type of semiconductor different from the first type of semiconductor, and an active layer disposed between the first semiconductor layer and the second semiconductor layer. An area of the first surface is larger than an area of the second surface, and a distance between the first surface and the second surface is shorter than a length defined by the first surface.
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3.发明授权公开(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.
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4.发明授权公开(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.
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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.
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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.
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