公开(公告)号：US20220165786A1

公开(公告)日：2022-05-26

申请号：US17454459

申请日：2021-11-10

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hun KIM ,  Chang Hee LEE ,  Jae Kook HA ,  In Pyo KIM ,  Jun Bo SIM ,  Hyo Jin KO ,  Chan Woo JOO ,  Na Mi HONG

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44

Abstract: A method of manufacturing a light emitting element includes: forming a plurality of light emitting patterns on a stack substrate; forming a polysilazane layer on the plurality of light emitting patterns; forming a first insulating film by curing the polysilazane layer; and forming a second insulating film on the first insulating film. The forming of the first insulating film includes photocuring the polysilazane layer by irradiating ultraviolet rays onto the polysilazane layer. The forming of the plurality of light emitting patterns includes: forming a light emitting stack structure on the stack substrate; and etching the light emitting stack structure.

公开(公告)号：US20220158039A1

公开(公告)日：2022-05-19

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 ,  H01L33/00 ,  H01L25/075 ,  H01L25/16 ,  H01L33/62

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：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：US20210149237A1

公开(公告)日：2021-05-20

申请号：US16890989

申请日：2020-06-02

Applicant: Samsung Display Co., Ltd.

Inventor： Jun Bo SIM ,  Ju Yong PARK ,  Da Young LEE ,  Jeong Uk HEO

IPC: G02F1/1339 ,  G02F1/1368 ,  G02F1/1362

Abstract: A display device includes: a first substrate; a second substrate overlapping the first substrate; a common electrode disposed on the second substrate; a column spacer disposed between the pixel electrode and the common electrode; and a plurality of pixels. Each of the plurality of pixels includes a transistor disposed on the first substrate and a pixel electrode electrically connected to the transistor through a hole. The display device further includes a plurality of column spacers disposed between the pixel electrode and the common electrode. The plurality of column spacers include a main spacer having a first height and a sub-spacer having a second height that is different from the first height. At least one of the main spacer and the sub-spacer includes a first spacer having a first planar area and a second planar spacer having a second planar area that is different from the first planar area.

公开(公告)号：US20240178201A1

公开(公告)日：2024-05-30

申请号：US18433201

申请日：2024-02-05

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 ,  C09D11/322 ,  C09D11/38 ,  C09D11/50 ,  H01L27/12 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44 ,  H01L33/62

CPC classification number: H01L25/0753 ,  B82B3/0052 ,  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：US20240170460A1

公开(公告)日：2024-05-23

申请号：US18325903

申请日：2023-05-30

Applicant: Samsung Display Co., LTD.

Inventor： Jae Hoon JUNG ,  Dong Gyun KIM ,  Jun Bo SIM ,  Hee Yeon YOO

IPC: H01L25/075 ,  C09D11/36 ,  C09K11/02 ,  H01L33/38

CPC classification number: H01L25/0753 ,  C09D11/36 ,  C09K11/02 ,  H01L33/38 ,  C09K2211/10 ,  H01L2933/0016

Abstract: A light emitting element solvent and method of fabricating a display device are provided. The light emitting element solvent includes a light emitting element solvent, and light emitting elements dispersed in the light emitting element solvent and each including a plurality of semiconductor layers and an insulating film surrounding outer surfaces of the semiconductor layers, wherein the light emitting element solvent includes a solvent molecule represented by Formula 1 and an ion remover represented by Formula 2.

公开(公告)号：US20230282778A1

公开(公告)日：2023-09-07

申请号：US17992656

申请日：2022-11-22

Applicant: Samsung Display Co., LTD.

Inventor： Dong Gyun KIM ,  Jun Bo SIM ,  Hee Yeon YOO ,  Jeong In CHOI ,  Chul Jong YOO ,  Yo Han LEE ,  Sung Ae JANG ,  Hyun Min CHO ,  Hyung Rae CHA

IPC: H01L33/38 ,  H01L25/075 ,  H01L33/62

CPC classification number: H01L33/382 ,  H01L25/0753 ,  H01L33/62

Abstract: A light-emitting element comprises a core comprising a first semiconductor layer, a second semiconductor layer provided on the first semiconductor layer, and an emissive layer provided between the first semiconductor layer and the second semiconductor layer, and a first element insulating film around a side surface of the core, wherein the first element insulating film comprises a composite of an insulating member and an elastic member.

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.

公开(公告)号：US20220093818A1

公开(公告)日：2022-03-24

申请号：US17360596

申请日：2021-06-28

Applicant: Samsung Display Co., LTD.

Inventor： Jun Bo SIM ,  Duk Ki KIM ,  Hyo Jin KO ,  Chang Hee LEE ,  Jae Kook HA ,  Na Mi HONG ,  Jong Hyuk KANG ,  Won Ho LEE ,  Hyun Deok IM ,  Eun A CHO

IPC: H01L33/00 ,  H01L27/15 ,  H01L33/32 ,  H01L33/24 ,  H01L33/06 ,  C09D11/50 ,  C09D11/52 ,  C09D11/037 ,  C09D11/033

Abstract: An ink for manufacturing a display device includes a solvent; and light emitting elements disposed in the solvent, wherein the light emitting elements include a first semiconductor layer including a first type of semiconductor and a second semiconductor layer including a second type of semiconductor, and an electrical conductivity of the ink is about 1.5 μS/m or less. Also provided are a method of manufacturing a display device using the ink and a display device manufactured by the method.

公开(公告)号：US20210332256A1

公开(公告)日：2021-10-28

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 ,  H01L51/52 ,  H01L51/56 ,  C09D11/50

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.