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Patent Agency Ranking
公开(公告)号：US20230121042A1
公开(公告)日：2023-04-20
申请号：US17966926
申请日：2022-10-17
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kwanghee KIM , Taehyung KIM , Hong Kyu SEO , Wonsik YOON , Eun Joo JANG
Abstract: An electroluminescent device including a first electrode; a second electrode; a light emitting layer disposed between the first electrode and the second electrode; and an electron transport layer disposed between the light emitting layer and the second electrode, wherein the light emitting layer includes semiconductor nanoparticles, wherein the electron transport layer includes a plurality of metal oxide nanoparticles, and wherein the electron transport layer further includes a polycarboxylic acid compound and a halogen.
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2.发明公开公开(公告)号：US20230165027A1
公开(公告)日：2023-05-25
申请号：US17991017
申请日：2022-11-21
Applicant: Samsung Electronics Co., Ltd.
Inventor： Soonmin CHA , Wonsik YOON , Eun Joo JANG , Taehyung KIM , Hyo Sook JANG
IPC: H01L51/00
CPC classification number: H01L51/502 , H01L51/5092 , H01L51/5072 , H01L51/5056 , H01L51/56
Abstract: An electroluminescent device including a first electrode; a second electrode; and a light emitting layer disposed between the first electrode and the second electrode, wherein the light emitting layer includes a plurality of semiconductor nanoparticles and does not include cadmium, wherein the light emitting layer further includes a chemical species including a cyanide group including a cyano group, a cyanide anion, or a combination thereof, and wherein the chemical species includes a bond between a metal and the cyanide group.
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公开(公告)号：US20240097068A1
公开(公告)日：2024-03-21
申请号：US18244661
申请日：2023-09-11
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Daehee LEE , Yuho WON , Wonsik YOON , Taehyung KIM
Abstract: A quantum dot of a light emitting device, includes: a core; and a shell around the core and including halogen elements of at least one type, wherein a first number per unit volume of halogen elements in a first area of the shell, that includes an outer surface of the shell, is larger than a second number per unit volume of halogen elements in a second area of the shell other than the outer surface of the shell.
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4.发明公开公开(公告)号：US20230212335A1
公开(公告)日：2023-07-06
申请号：US18150672
申请日：2023-01-05
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Norihito ISHII , Fumiaki KATO , Masashi TSUJI , Naotoshi SUGANUMA , Takahiro FUJIYAMA , Yusaku KONISHI , Eun Joo JANG , Ha Il KWON , Hyo Sook JANG , Soonmin CHA , Tae Ho KIM , Wonsik YOON , Yuho WON
CPC classification number: C08F26/12 , H10K50/15 , H10K50/17 , H10K85/146
Abstract: As a technology capable of improving the durability of an electroluminescent device, for example, luminescence lifespan, a polymeric compound including a structural unit represented by Chemical Formula 1, or a structural unit represented by Chemical Formula 1 and a structural unit represented by Chemical Formula 2, and an electroluminescent device material or electroluminescent device including the same are provided:
In Chemical Formula 1 and Chemical Formula 2, R11 to R14 are not the same as R41 to R44.-
5.发明公开公开(公告)号：US20230212334A1
公开(公告)日：2023-07-06
申请号：US18150337
申请日：2023-01-05
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Takahiro FUJIYAMA , Norihito ISHII , Fumiaki KATO , Masashi TSUJI , Naotoshi SUGANUMA , Yusaku KONISHI , Eun Joo JANG , Ha Il KWON , Hyo Sook JANG , Soonmin CHA , Tae Ho KIM , Wonsik YOON , Yuho WON
CPC classification number: C08F26/02 , C08F28/06 , H10K85/111 , H10K85/113 , H10K50/15 , H10K50/17 , H10K2102/331
Abstract: A polymer including a structural unit represented by Chemical Formula 1, an electroluminescence device material including the polymer, an electroluminescence device including the polymer or the electroluminescence device material, and an electronic device including the electroluminescence device are provided:
In Chemical Formula 1, the definition of each substituent is the same as described in the specification.
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