公开(公告)号：US11910697B2

公开(公告)日：2024-02-20

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: H10K85/10 ,  C08G61/10 ,  C08L65/02 ,  H10K50/15 ,  H10K50/17

CPC classification number: H10K85/111 ,  C08G61/10 ,  C08L65/02 ,  C08G2261/11 ,  C08G2261/148 ,  C08G2261/149 ,  C08G2261/1434 ,  C08G2261/312 ,  C08G2261/3142 ,  C08G2261/95 ,  H10K50/15 ,  H10K50/17

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：US11038136B2

公开(公告)日：2021-06-15

申请号：US16811637

申请日：2020-03-06

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: H01L51/50 ,  H01L51/56

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：US10923668B2

公开(公告)日：2021-02-16

申请号：US17005392

申请日：2020-08-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kun Su Park ,  Kwanghee Kim ,  Tae Ho Kim ,  Eun Joo Jang ,  Won Sik Yoon

IPC: H01L51/00 ,  H01L51/50

Abstract: An electroluminescent device, a method of manufacturing the same, and a display device including the same.
The electroluminescent device includes a first electrode, a hole transport layer disposed on the first electrode, an emission layer disposed on the hole transport layer and including light emitting particles, an electron transport layer disposed on the emission layer and including nanoparticles having electron transport capability, and a second electrode disposed on the electron transport layer, wherein at least a portion of the nanoparticles having electron transport capability include an inorganic oxide core represented by Chemical Formula 1, and a metal-organic compound chemically bound to the surface of the inorganic oxide core. MxOy  Chemical Formula 1

公开(公告)号：US12016190B2

公开(公告)日：2024-06-18

申请号：US17318460

申请日：2021-05-12

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: H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K71/00 ,  H10K85/60 ,  H10K101/00 ,  H10K102/00

CPC classification number: H10K50/115 ,  H10K50/15 ,  H10K50/157 ,  H10K50/167 ,  H10K71/00 ,  H10K85/631 ,  H10K85/633 ,  H10K50/16 ,  H10K2101/00 ,  H10K2102/331

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：US11925043B2

公开(公告)日：2024-03-05

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

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：US11532791B2

公开(公告)日：2022-12-20

申请号：US16791163

申请日：2020-02-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Ho Kim ,  Won Sik Yoon ,  Eun Joo Jang

IPC: H01L51/00 ,  C09K11/06 ,  H01L51/50 ,  H01L51/56

Abstract: A light emitting device including a first electrode and a second electrode facing each other, an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a plurality of quantum dots and metal carboxylate having at least one hydrocarbon group of at least one carbon atoms, and the plurality of quantum dots includes a first organic ligand, and does not include cadmium and lead, and a method of manufacturing the same.

公开(公告)号：US20200044173A1

公开(公告)日：2020-02-06

申请号：US16530253

申请日：2019-08-02

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：US12213333B2

公开(公告)日：2025-01-28

申请号：US18498727

申请日：2023-10-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hongkyu Seo ,  Kwanghee Kim ,  Eun Joo Jang ,  Won Sik Yoon ,  Tae Hyung Kim ,  Tae Ho Kim

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

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.

公开(公告)号：US11884858B2

公开(公告)日：2024-01-30

申请号：US17308344

申请日：2021-05-05

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 ,  B82Y40/00 ,  B82Y30/00 ,  B82Y20/00 ,  H10K50/16 ,  H10K50/18 ,  H10K50/115 ,  H10K50/17

CPC classification number: C09K11/883 ,  C09K11/703 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  H10K50/115 ,  H10K50/16 ,  H10K50/171 ,  H10K50/18

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：US11832468B2

公开(公告)日：2023-11-28

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: H10K50/16 ,  H10K71/00 ,  H10K85/60 ,  H10K50/115 ,  H10K102/00

CPC classification number: H10K50/16 ,  H10K71/00 ,  H10K85/60 ,  H10K50/115 ,  H10K2102/00 ,  H10K2102/331

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.