公开(公告)号：US20240247104A1

公开(公告)日：2024-07-25

申请号：US18530783

申请日：2023-12-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Fumiaki KATO ,  Masashi TSUJI ,  Norihito ISHII ,  Takahiro FUJIYAMA ,  Naotoshi SUGANUMA ,  Yusaku KONISHI ,  Ha Il KWON ,  Won Sik YOON

IPC: C08G73/02 ,  H10K50/15 ,  H10K71/10 ,  H10K85/10 ,  H10K85/60

CPC classification number: C08G73/02 ,  H10K50/15 ,  H10K71/10 ,  H10K85/111 ,  H10K85/615 ,  H10K85/631 ,  H10K85/6572

Abstract: A polymer compound including a structural unit represented by formula (1), and at least one of structural units represented by formula (2), formula (3), or formula (4), and a composition, an organic membrane, and an electroluminescence device including the polymer compound, and a method or producing the electroluminescence device are provided:

公开(公告)号：US20220149311A1

公开(公告)日：2022-05-12

申请号：US17515784

申请日：2021-11-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hongkyu SEO ,  Tae Hyung KIM ,  Eun Joo JANG ,  Won Sik YOON ,  Hyo Sook JANG ,  Oul CHO

IPC: H01L51/50 ,  H01L51/56 ,  H01L51/00

Abstract: A method of manufacturing a light emitting device that includes providing a first electrode, forming a light emitting layer including quantum dots on the first electrode, forming an electron auxiliary layer on the light emitting layer, and forming a second electrode on the electronic auxiliary layer. The forming of the electron auxiliary layer includes forming an electron auxiliary layer including a plurality of metal oxide nanoparticles, and contacting the plurality of metal oxide nanoparticles with a base including a hydroxyl group (OH).

公开(公告)号：US20210057664A1

公开(公告)日：2021-02-25

申请号：US17083832

申请日：2020-10-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Ho KIM ,  Won Sik YOON ,  Jeong Hee LEE ,  Eun Joo JANG ,  Oul CHO

IPC: H01L51/50 ,  H01L51/52 ,  H01L51/56

Abstract: A light emitting device includes: a first electrode and a second electrode facing each other, an emissive layer disposed between the first electrode and the second electrode and including a quantum dot, an electron auxiliary layer disposed between the emissive layer and the second electrode and including a plurality of nanoparticles, and a polymer layer between a portion of the second electrode and the electron auxiliary layer, wherein the nanoparticles include a metal oxide including zinc, wherein the second electrode has a first surface facing a surface of the electron auxiliary layer and a second surface opposite to the first surface, and the polymer layer is disposed on a portion of the second surface and a portion of the surface of the electron auxiliary layer, and wherein the polymer layer includes a polymerization product of a thiol compound and an unsaturated compound having at least two carbon-carbon unsaturated bonds.

公开(公告)号：US20240215283A1

公开(公告)日：2024-06-27

申请号：US18419638

申请日：2024-01-23

Applicant: SAMSUNG ELECTRONICS CO., LTD

Inventor： Moon Gyu HAN ,  Heejae LEE ,  Eun Joo JANG ,  Tae Ho KIM ,  Kun Su PARK ,  Won Sik YOON ,  Hyo Sook JANG

IPC: H10K50/115 ,  H10K50/11 ,  H10K50/16 ,  H10K71/00 ,  H10K71/12 ,  H10K101/30 ,  H10K101/40

CPC classification number: H10K50/115 ,  H10K50/11 ,  H10K50/166 ,  H10K71/00 ,  H10K71/12 ,  H10K2101/30 ,  H10K2101/40

Abstract: A quantum dot light-emitting device including first electrode and a second electrode, a quantum dot layer between the first electrode and the second electrode, a first electron transport layer and a second electron layer disposed between the quantum dot layer and the second electrode. The second electron transport layer is disposed between the quantum dot layer and the first electron transport layer, wherein each of the first electron transport layer and the second electron transport layer includes an inorganic material. A lowest unoccupied molecular orbital energy level of the second electron transport layer is shallower than a lowest unoccupied molecular orbital energy level of the first electron transport layer, and a lowest unoccupied molecular orbital energy level of the quantum dot layer is shallower than a lowest unoccupied molecular orbital energy level of the second electron transport layer. An electronic device including the quantum dot light-emitting device.

公开(公告)号：US20210119161A1

公开(公告)日：2021-04-22

申请号：US17072436

申请日：2020-10-16

Applicant: SAMSUNG ELECTRONICS CO., LTD

Inventor： Moon Gyu HAN ,  Heejae LEE ,  Eun Joo JANG ,  Tae Ho KIM ,  Kun Su PARK ,  Won Sik YOON ,  Hyo Sook JANG

IPC: H01L51/50

Abstract: A quantum dot light-emitting device including first electrode and a second electrode, a quantum dot layer between the first electrode and the second electrode, a first electron transport layer and a second electron layer disposed between the quantum dot layer and the second electrode. The second electron transport layer is disposed between the quantum dot layer and the first electron transport layer, wherein each of the first electron transport layer and the second electron transport layer includes an inorganic material. A lowest unoccupied molecular orbital energy level of the second electron transport layer is shallower than a lowest unoccupied molecular orbital energy level of the first electron transport layer, and a lowest unoccupied molecular orbital energy level of the quantum dot layer is shallower than a lowest unoccupied molecular orbital energy level of the second electron transport layer. An electronic device including the quantum dot light-emitting device.

公开(公告)号：US20240244862A1

公开(公告)日：2024-07-18

申请号：US18405428

申请日：2024-01-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin A KIM ,  Ju Hyun KIM ,  Yuho WON ,  Won Sik YOON ,  Taehyung KIM ,  Hyunju KIM

IPC: H10K50/115 ,  C09K11/02 ,  C09K11/06 ,  H10K85/30

CPC classification number: H10K50/115 ,  C09K11/02 ,  C09K11/06 ,  H10K85/381 ,  H10K2101/40

Abstract: A light emitting device includes a first electrode and a second electrode facing each other, a light emitting layer disposed between the first electrode and the second electrode, and the light emitting layer including quantum dots, wherein the light emitting layer includes a first light emitting layer proximate to the first electrode and a second light emitting layer proximate to the second electrode, the quantum dots of the first light emitting layer include a first ligand on a surface, and the quantum dots of the second light emitting layer include a second ligand on a surface, the first ligand different from the second ligand, a HOMO energy level of the first light emitting layer is lower (shallower) than a HOMO energy level of the second light emitting layer.

公开(公告)号：US20240224796A1

公开(公告)日：2024-07-04

申请号：US18600030

申请日：2024-03-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Moon Gyu HAN ,  Dae Young CHUNG ,  Kwanghee KIM ,  Eun Joo JANG ,  Chan Su KIM ,  Kun Su PARK ,  Won Sik YOON

IPC: H10K85/60 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K71/00 ,  H10K71/12 ,  H10K102/00

CPC classification number: H10K85/633 ,  H10K85/6572 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K71/00 ,  H10K71/12 ,  H10K2102/331 ,  H10K2102/351

Abstract: An electroluminescent device includes a first electrode and a second electrode facing each other; an emission layer disposed between the first electrode and the second electrode and including a plurality of quantum dots and a first hole transporting material having a substituted or unsubstituted C4 to C20 alkyl group attached to a backbone structure; a hole transport layer disposed between the emission layer and the first electrode and including a second hole transporting material; and an electron transport layer disposed between the emission layer and the second electrode.

公开(公告)号：US20240141231A1

公开(公告)日：2024-05-02

申请号：US18535107

申请日：2023-12-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kwanghee KIM ,  Tae Hyung KIM ,  Hongkyu SEO ,  Won Sik YOON ,  Jaeyong LEE ,  Eun Joo JANG ,  Oul CHO

IPC: C09K11/88 ,  C09K11/70

CPC classification number: C09K11/883 ,  C09K11/703 ,  B82Y40/00

Abstract: A semiconductor nanocrystal including an anion of an inorganic metal salt and a first organic ligand bound to a surface of the semiconductor nanocrystal, wherein the first organic ligand includes a substituted or unsubstituted C6 to C30 aromatic ring group and a carboxylate, a substituted or unsubstituted C3 to C30 aromatic hetero cyclic group and a carboxylate, or a combination thereof.

公开(公告)号：US20220077394A1

公开(公告)日：2022-03-10

申请号：US17470884

申请日：2021-09-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Fumiaki KATO ,  Masashi TSUJI ,  Takao MOTOYAMA ,  Yusaku KONISHI ,  Keigo FURUTA ,  Takahiro FUJIYAMA ,  Tae Ho KIM ,  Won Sik YOON ,  Ha Il KWON ,  Dae Young CHUNG ,  Eun Joo JANG

IPC: H01L51/00 ,  C08G61/10 ,  C08L65/02

Abstract: A copolymer having a structural unit represented by Chemical Formula 1 is provided. The copolymer may improve performance, e.g., luminous efficiency, of an electroluminescence device. In Chemical Formula 1, the definition of each substituent is as described in the detailed description.

公开(公告)号：US20220006036A1

公开(公告)日：2022-01-06

申请号：US17358905

申请日：2021-06-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hongkyu SEO ,  Kwanghee KIM ,  Eun Joo JANG ,  Won Sik YOON ,  Tae Hyung KIM ,  Tae Ho KIM

IPC: H01L51/50 ,  H01L51/56 ,  H01L51/00

Abstract: Light emitting device, method of manufacturing the light emitting device, and display device including the light emitting device are disclosed. The light emitting device includes a first electrode and a second electrode each having a surface opposite the other, a light emitting layer including quantum dots that is disposed between the first electrode and the second electrode, and an electron auxiliary layer disposed between the light emitting layer and the second electrode, wherein the electron auxiliary layer includes metal oxide nanoparticles including an anion of an organic acid bound to a surface of the metal oxide nanoparticle.