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公开(公告)号：US11870001B2
公开(公告)日：2024-01-09
申请号：US17443402
申请日：2021-07-26
Inventor： Sooho Lee , Minki Nam , Sungwoon Kim , Jeongwoo Park , Wanki Bae , Changhee Lee , Byeongguk Jeong
IPC: H01L31/12 , H01L31/0384 , H01L31/103 , H01L31/18 , H10K50/115 , H10K59/60 , H10K71/00 , B82Y40/00 , B82Y20/00
CPC classification number: H01L31/125 , H01L31/03845 , H01L31/1032 , H01L31/1035 , H01L31/184 , H01L31/1828 , H10K50/115 , H10K59/60 , H10K71/00 , B82Y20/00 , B82Y40/00
Abstract: An electronic device includes a semiconductor nanoparticle, and a method of manufacturing the semiconductor nanoparticle is additionally provided. The semiconductor nanoparticle includes: a core including a first element; and a shell covering at least a portion of a surface of the core and including a second element and a third element, wherein the first element, the second element, and the third element are different from each other, and the first element and the second element are chemically bonded to each other on the at least a portion of the surface of the core.
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公开(公告)号：US11844274B2
公开(公告)日：2023-12-12
申请号：US16721613
申请日：2019-12-19
Inventor： SooYoung Park , Sehun Kim , JiEon Kwon , Hyojeong Kim , ChiHyun Ryoo , Changhee Lee , Hyein Jeong , Jongseok Han
CPC classification number: H10K85/6572 , H10K85/631 , H10K50/11
Abstract: An organic electroluminescence device of an embodiment includes oppositely disposed first electrode and second electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one among the organic layers includes a compound represented by Formula 1 below. Improved emission efficiency and color purity properties may be shown.
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公开(公告)号：US11765954B2
公开(公告)日：2023-09-19
申请号：US17354210
申请日：2021-06-22
Applicant: Samsung Display Co., Ltd.
Inventor： Jingoo Kang , Sungwoon Kim , Changhee Lee
IPC: H10K59/35 , H10K71/00 , H10K50/115 , H10K50/155 , H10K50/165
CPC classification number: H10K59/35 , H10K59/352 , H10K71/00 , H10K50/115 , H10K50/155 , H10K50/165
Abstract: A display device including a first light emitting element including a first emission layer and a first charge transport layer adjacent to the first emission layer, the first emission layer including a first quantum dot to emit first light, and a second light emitting element including a second emission layer and a second charge transport layer adjacent to the second emission layer, the second emission layer including a second quantum dot to emit second light that is longer in wavelength than the first light. The first charge transport layer includes a first metal oxide. The second charge transport layer includes a second metal oxide different from the first metal oxide.
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公开(公告)号：US20220131108A1
公开(公告)日：2022-04-28
申请号：US17508480
申请日：2021-10-22
Applicant: Samsung Display Co., Ltd
Inventor： Myoungjin PARK , Changhee Lee , Jaehong Park , Jingoo Kang , Seokgyu Yoon , Jaeyong Lee
Abstract: A light-emitting device includes: a first electrode; a second electrode; an interlayer between the first electrode and the second electrode and including an emission layer; a hole transport region between the first electrode and the emission layer; and an electron transport region between the second electrode and the emission layer, wherein the first electrode is a multi-layered electrode including: a first layer including a first material, a second layer disposed on the first layer and including a second material, and a third layer between the second layer and the hole transport region and including a third material, wherein a first surface of the third layer contacts the second layer, and a second surface of the third layer facing the first surface directly contacts the hole transport region, and the third material has a work function of greater than about 4.8 eV and less than or equal to about 6.8 eV.
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