公开(公告)号：US11925044B2

公开(公告)日：2024-03-05

申请号：US17944394

申请日：2022-09-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Ho Kim ,  Won Sik Yoon ,  Jeong Hee Lee ,  Eun Joo Jang ,  Oul Cho

IPC: H10K50/115 ,  H10K50/81 ,  H10K50/84 ,  H10K59/00 ,  H10K71/00 ,  H10K102/10

CPC classification number: H10K50/115 ,  H10K50/81 ,  H10K50/84 ,  H10K71/00 ,  H10K59/00 ,  H10K2102/103

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：US11917841B2

公开(公告)日：2024-02-27

申请号：US17123292

申请日：2020-12-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jaejun Chang ,  Kwanghee Kim ,  Won Sik Yoon ,  Eun Joo Jang ,  Oul Cho

IPC: H10K50/115 ,  H10K50/11 ,  H10K50/15 ,  H10K101/40

CPC classification number: H10K50/115 ,  H10K50/11 ,  H10K50/15 ,  H10K2101/40

Abstract: A light-emitting device including a first electrode, a second electrode, and a light-emitting film disposed between the first electrode and the second electrode, and a method of producing the device. The light-emitting film includes a fluorine-containing organic salt, and quantum dots that do not include cadmium, lead, or a combination thereof, and the fluorine-containing organic salt includes a substituted or unsubstituted C1 to C30 hydrocarbon group, a non-metallic element, fluorine, and at least one of boron or phosphorus, and the non-metallic element includes carbon, nitrogen, oxygen, phosphorus, sulfur, or selenium.

公开(公告)号：US11710448B2

公开(公告)日：2023-07-25

申请号：US17578173

申请日：2022-01-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Oul Cho ,  Tae Hyung Kim ,  Ilyoung Lee ,  Eun Joo Jang ,  Won Sik Yoon

IPC: G09G3/32 ,  H10K50/115

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/043 ,  H10K50/115

Abstract: A light emitting element includes a first electrode, a second electrode, and a light emission layer interposed between the first electrode and the second electrode, where an emission efficiency of the light emission layer varies based on a voltage applied to at least one selected from the first electrode and the second electrode.

公开(公告)号：US10818859B2

公开(公告)日：2020-10-27

申请号：US16233567

申请日：2018-12-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H01L51/50 ,  H01L51/00

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, an organic ligand attached to a surface of the inorganic oxide core, and a metal-organic compound chemically bound to the surface of the inorganic oxide core. MxOy  Chemical Formula 1