公开(公告)号：US20230026527A1

公开(公告)日：2023-01-26

申请号：US17778667

申请日：2020-09-03

Applicant: Samsung Display Co., LTD.

Inventor： Jae Hoon JUNG ,  Hye Jung HONG ,  Jong Hyuk KANG ,  Hee Yeon YOO ,  Sung Chan JO ,  Hyun Min CHO

IPC: H01L33/00 ,  H01L51/00 ,  H01L33/38 ,  H01L33/62

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 that is different from the first polarity; an active layer placed between the first semiconductor layer and the second semiconductor layer; and an insulating layer surrounding at least the outer surface of the active material. The insulating layer includes an insulating film surrounding the active layer, and an element dispersion agent including a magnetic metal and bonded to an outer surface of the insulating film.

公开(公告)号：US20230102417A1

公开(公告)日：2023-03-30

申请号：US17792943

申请日：2021-01-14

Applicant: Samsung Display Co., LTD.

Inventor： Jae Hoon JUNG ,  Buem Joon KIM ,  Hee Yeon YOO ,  Sung Chan JO ,  Eun A CHO ,  Hye Jung HONG ,  Jong Hyuk KANG ,  Keun Kyu SONG ,  Hyun Deok IM ,  Hyun Min CHO

IPC: C09D11/033 ,  C09D11/36 ,  C09D11/50 ,  H01L51/56 ,  C09K11/06

Abstract: A light emitting element ink includes a light emitting element solvent, and a light emitting element dispersed in the light-emitting diode solvent. The light emitting element includes semiconductor layers and an insulating film surrounding the outer surface of the semiconductor layers, wherein the light-emitting diode solvent is an organic solvent having a pKa value in a range of about 7 to about 15.

公开(公告)号：US20230170336A1

公开(公告)日：2023-06-01

申请号：US17921083

申请日：2021-04-01

Applicant: Samsung Display Co., LTD.

Inventor： Jae Hoon JUNG ,  Jong Hyuk KANG ,  Hee Yeon YOO ,  Hyun Min CHO ,  Hye Jung HONG

IPC: H01L25/075 ,  H01L33/24 ,  C09K11/02

CPC classification number: H01L25/0753 ,  H01L33/24 ,  C09K11/02

Abstract: Provided are a light-emitting element ink and a method for manufacturing a display apparatus. The light-emitting element ink comprises: a light-emitting element solvent; and a plurality of light-emitting elements dispersed in the light-emitting element solvent and each comprising a plurality of semiconductor layers and an insulation film partially surrounding the outer surfaces of the semiconductor layers, wherein the light-emitting element solvent includes a fatty acid ester-based compound having a melting point in the range of 0° C. to 15° C.

公开(公告)号：US20220204796A1

公开(公告)日：2022-06-30

申请号：US17593438

申请日：2020-03-03

Applicant: Samsung Display Co., Ltd.

Inventor： Jae Hoon JUNG ,  Hee Yeon YOO ,  Hye Jung HONG ,  Hyo Jin KO ,  Duk Ki KIM ,  Jun Bo SIM ,  Sung Chan JO ,  Jong Hyuk KANG ,  Keun Kyu SONG ,  Hyun Min CHO

IPC: C09D11/50 ,  H01L33/00 ,  H01L25/075

Abstract: A method for manufacturing a display device comprises the steps of: spraying, on a target substrate having a first electrode and a second electrode formed thereon, an element ink comprising a first element solvent and light-emitting elements dispersed in the first element solvent; forming a second element solvent in which at least some bonds of the first element solvent are decomposed by irradiating light to the first element solvent and mounting the light-emitting elements on the first electrode and the second electrode; and removing the second element solvent.

公开(公告)号：US20230256735A1

公开(公告)日：2023-08-17

申请号：US18004032

申请日：2021-06-04

Applicant: Samsung Display Co., LTD.

Inventor： Hye Jung HONG ,  Hyun Min CHO ,  Jong Hyuk KANG ,  Hee Yeon YOO ,  Yo Han LEE ,  Jae Hoon JUNG

IPC: B41J2/045 ,  B41J2/175

CPC classification number: B41J2/04563 ,  B41J2/175 ,  B41J2/04583

Abstract: An inkjet printing apparatus includes: a print head device including an inkjet head to spray a composition for ink including a plurality of bipolar elements; an ink circulation device including an ink storage to store the composition for ink, and transfer the composition for ink to the print head device; an ink injection device to inject the composition for ink into the ink storage; and a temperature adjusting device to adjust a temperature of the composition for ink. The temperature adjusting device includes: a first temperature adjusting device to adjust a temperature to be included in a first reference temperature range; a second temperature adjusting device to adjust a temperature to be included in a second reference temperature range; and a third temperature adjusting device to adjust a temperature to be included in a third reference temperature range.

公开(公告)号：US20220068876A1

公开(公告)日：2022-03-03

申请号：US17423453

申请日：2019-11-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Rag DO ,  Hee Yeon YOO ,  Yun Jae EO

IPC: H01L23/00 ,  H01L25/075 ,  H01L33/62

Abstract: A display device and a manufacturing method thereof are provided. The display device comprises: a substrate in which a first region and a second region that is a region other than the first area, are defined; a first electrode and a second electrode that are at least partially spaced apart from each other in the first area on the substrate; a coating layer disposed on the substrate so as to cover at least a portion of the first electrode and the second electrode; and at least one light-emitting element disposed between the first electrode and the second electrode in the first region, wherein the coating layer comprises: an opening exposing at least portion of the first electrode and the second electrode in the first region, wherein the coating layer comprises: an opening exposing at least portion of the first electrode and the second electrode; and a first coating layer disposed in a region other than the opening and including a material having a first polarity.

公开(公告)号：US20240332265A1

公开(公告)日：2024-10-03

申请号：US18678529

申请日：2024-05-30

Applicant: Samsung Display Co., LTD.

Inventor： In Hyuk KIM ,  Dong Gyun KIM ,  Jae Hoon JUNG ,  Jin Oh KWAG ,  Hee Yeon YOO ,  Sung Chan JO ,  Jeong In CHOI ,  Hye Jung HONG ,  Jong Hyuk KANG ,  Dong Eon LEE ,  Hyun Min CHO

IPC: H01L25/075 ,  H01L21/68 ,  H01L21/78 ,  H01L33/00

CPC classification number: H01L25/0753 ,  H01L21/68 ,  H01L21/7806 ,  H01L33/005

Abstract: An apparatus includes a base including a receiving portion that receives a substrate on which semiconductor elements are disposed; and at least one ultrasonic generator that generates and applies ultrasonic waves to the substrate placed in the base.

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：US20220037292A1

公开(公告)日：2022-02-03

申请号：US17382825

申请日：2021-07-22

Applicant: Samsung Display Co., LTD.

Inventor： In Hyuk KIM ,  Dong Gyun KIM ,  Jae Hoon JUNG ,  Jin Oh KWAG ,  Hee Yeon YOO ,  Sung Chan JO ,  Jeong In CHOI ,  Hye Jung HONG ,  Jong Hyuk KANG ,  Dong Eon LEE ,  Hyun Min CHO

IPC: H01L25/075 ,  H01L33/00 ,  H01L21/68 ,  H01L21/78

Abstract: An apparatus includes a base including a receiving portion that receives a substrate on which semiconductor elements are disposed; and at least one ultrasonic generator that generates and applies ultrasonic waves to the substrate placed in the base.