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公开(公告)号：US11910626B2
公开(公告)日：2024-02-20
申请号：US17033774
申请日：2020-09-26
发明人： Hyomin Kim , Illsoo Park , Sijin Sung , Gina Yoo , Sunhwa Kim , Jaehong Kim , Heeseong Jeong , Jongseok Han
IPC分类号： H10K50/11 , H10K59/35 , H10K85/60 , H10K50/17 , H10K101/40 , H10K101/30 , H10K102/00
CPC分类号： H10K50/11 , H10K59/35 , H10K85/636 , H10K50/17 , H10K85/6572 , H10K2101/30 , H10K2101/40 , H10K2102/351
摘要： A light-emitting device includes: a substrate including a first subpixel, as second subpixel, and a third subpixel; a plurality of first electrodes respectively in the first subpixel, the second subpixel, and the third subpixel of the substrate; a second electrode facing the first electrode; an emission layer located between the plurality of first electrodes and the second electrode; a hole injection layer between the plurality of first electrodes and the emission layer; a first common layer between the hole injection layer and the emission layer, the first common layer integrated with the first subpixel, the second subpixel, and the third subpixel; a second common layer between the hole injection layer and the first common layer, the second common layer integrated with the first subpixel, the second subpixel, and the third subpixel, wherein the first common layer and the second common layer satisfy certain conditions. In particular, the first common layer consists of a blue host, and the blue host satisfies Equations 1 and 2:
|EHOMO_BH|>|EHOMO_REML| Equation 1
|EHOMO_BH|>|EHOMO_GEML|. Equation 2-
公开(公告)号：US11844274B2
公开(公告)日：2023-12-12
申请号：US16721613
申请日：2019-12-19
发明人： SooYoung Park , Sehun Kim , JiEon Kwon , Hyojeong Kim , ChiHyun Ryoo , Changhee Lee , Hyein Jeong , Jongseok Han
CPC分类号： H10K85/6572 , H10K85/631 , H10K50/11
摘要： 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：US20240147752A1
公开(公告)日：2024-05-02
申请号：US18476056
申请日：2023-09-27
发明人： Hyangki Sung , Dalho Kim , Jongseok Han , Eunji Park , Heeseong Jeong
IPC分类号： H10K50/17
CPC分类号： H10K50/171 , H10K2102/351
摘要： Provided is a light-emitting device including a first electrode, a second electrode facing the first electrode, an emission layer between the first electrode and the second electrode, and an electron transport region between the emission layer and the second electrode, wherein the electron transport region includes an electron injection layer including a first material and a second material, the first material and the second material each independently include an alkali metal, an alkaline earth metal, a transition metal, a post-transition metal, a lanthanide metal, or a combination thereof, the second material does not include Mg, the first material and the second material are different from each other, and a surface energy of the second material is greater than a surface energy of the first material.
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公开(公告)号：US20230380205A1
公开(公告)日：2023-11-23
申请号：US18316832
申请日：2023-05-12
发明人： Jongseok Han , Dalho Kim , Illsoo Park , Heeseong Jeong , Jaehong Kim , Hyomin Kim , Eunji Park , Sijin Sung
IPC分类号： H10K50/16 , H10K50/17 , H10K50/858
CPC分类号： H10K50/16 , H10K50/171 , H10K50/858
摘要： A light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer located between the first electrode and the second electrode; and an electron transport region located between the second electrode and the emission layer, wherein the electron transport region includes an electron injection layer including a first material and a second material, the first material and the second material each independently include an alkali metal, an alkaline earth metal, a rare earth metal, or any combination thereof, each of the first material and the second material does not include any halide of the alkali metal, and the first material and the second material are different from each other.
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公开(公告)号：US20220190273A1
公开(公告)日：2022-06-16
申请号：US17518551
申请日：2021-11-03
发明人： Jongseok Han , lllsoo Park , Jaehong Kim , Hyomin Kim , Sijin Sung , Heeseong Jeong
摘要： A display apparatus includes a substrate, a first electrode on the substrate, a second electrode on the first electrode, an emission layer between the first electrode and the second electrode, and a hole transport layer located between the first electrode and the emission layer, and including a first mixed layer in which a first material and a second material different from the first material are mixed with each other, wherein an absolute value of a difference between a Highest Occupied Molecular Orbital (HOMO) energy level of the first material and a HOMO energy level of the second material is about 0.3 eV or less.
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