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公开(公告)号：US20250031572A1
公开(公告)日：2025-01-23
申请号：US18888377
申请日：2024-09-18
Applicant: Samsung Display Co., Ltd.
Inventor： Jiyoung SONG , Seulong KIM , Pilgu KANG , Eungyoung PARK , Hajin SONG , Hyekyun LEE , Soonchul CHANG , Dongseob JEONG , Yangjin CHO , Jina HUR
IPC: H10K85/60 , H10K50/11 , H10K50/115 , H10K50/15 , H10K50/16 , H10K50/17 , H10K50/18 , H10K85/30 , H10K85/40 , H10K101/10
Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission region between the first electrode and the second electrode and including a first emission layer and a second emission layer; and a hole blocking layer between the first emission layer and the first electrode, or between the second emission layer and the second electrode, wherein the second emission layer may be between the first emission layer and the hole blocking layer, the first emission layer may include a first host and a first light-emitting material, the second emission layer may include a second host and a second light-emitting material, and the first light-emitting material and the second light-emitting material may respectively be included in the first emission layer and the second emission layer at an identical ratio.
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公开(公告)号：US20210273192A1
公开(公告)日：2021-09-02
申请号：US17060733
申请日：2020-10-01
Applicant: Samsung Display Co., Ltd.
Inventor： Seulong KIM , Pilgu KANG , Jiyoung KWON , Taehyung KIM , Hyoyeon KIM , Huiju PARK , Dongkyu LEE , Seho LEE , Yongdae LEE , Changgwi JIN , Jungho CHOI
IPC: H01L51/50 , C07D471/04 , C09K11/06 , H01L51/00
Abstract: Provided are an organic light-emitting device and an apparatus including the same. The organic light-emitting device includes a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode. The organic layer includes m emission units; and m-1 charge generation units between two neighboring emission units among the m emission units, wherein m is an integer of 2 or more, and at least one of the m-1 charge generation units includes a heterocyclic compound represented by Formula 1 below: Substituents in Formula 1 may be understood as described in connection with the detailed description.
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公开(公告)号：US20210013440A1
公开(公告)日：2021-01-14
申请号：US16881591
申请日：2020-05-22
Applicant: Samsung Display Co., Ltd.
Inventor： Seulong KIM , Taekyung KIM , Pilgu KANG , Jiyoung KWON , Eungyoung PARK , Jiyoung SONG , Soon-Chul CHANG , Dongseob JEONG
Abstract: A light emitting device includes a first electrode, a first stack on the first electrode, a first charge generation layer on the first stack, a second stack on the first charge generation layer, and a second electrode on the second stack. The first stack includes a first light emitting layer and a plurality of first organic layers, and the second stack includes a second light emitting layer and a plurality of second organic layers. Among the plurality of first organic layers and the plurality of second organic layers, at least one of organic layers adjacent to the first light emitting layer and the second light emitting layer includes a light emitting material.
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公开(公告)号：US20210376248A1
公开(公告)日：2021-12-02
申请号：US17329903
申请日：2021-05-25
Applicant: Samsung Display Co., Ltd.
Inventor： Jiyoung SONG , Seulong KIM , Pilgu KANG , Eungyoung PARK , Hajin SONG , Hyekyun LEE , Soonchul CHANG , Dongseob JEONG , Yangjin CHO , Jina HUR
IPC: H01L51/00
Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission region between the first electrode and the second electrode and including a first emission layer and a second emission layer; and a hole blocking layer between the first emission layer and the first electrode, or between the second emission layer and the second electrode, wherein the second emission layer may be between the first emission layer and the hole blocking layer, the first emission layer may include a first host and a first light-emitting material, the second emission layer may include a second host and a second light-emitting material, and the first light-emitting material and the second light-emitting material may respectively be included in the first emission layer and the second emission layer at an identical ratio.
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公开(公告)号：US20200295271A1
公开(公告)日：2020-09-17
申请号：US16813539
申请日：2020-03-09
Applicant: Samsung Display Co., Ltd.
Inventor： Jaeyong LEE , Taekyung KIM , Minkyung KIM , Seulong KIM , Pilgu KANG , Jiyoung KWON , Soonchul CHANG , Jaehoon HWANG
Abstract: Provided are an organic-light-emitting device and a display apparatus including the same. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including at least one light-emitting unit, wherein the at least one light-emitting unit includes: an emission layer; and a hole transport region between the first electrode and the emission layer and including a first hole transport (HT) layer, the emission layer includes a host, the first HT layer includes a first compound, a minimum bond dissociation energy (BDE1HT) of the first compound is larger than a triplet energy (T1,host) of the host, and a minimum bond dissociation energy (BDEhost) of the host is larger than the triplet energy (T1,host) of the host.
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Patent Agency Ranking
公开(公告)号：US20200220082A1
公开(公告)日：2020-07-09
申请号：US16677576
申请日：2019-11-07
Applicant: Samsung Display Co., Ltd.
Inventor： Seulong KIM , Pilgu KANG , Jiyoung KWON , TAEKYUNG KIM , Soon-Chul CHANG
IPC: H01L51/00 , C07C15/28 , C09K11/06 , C07D213/06
Abstract: Provided are an organic electroluminescence device and a display device including the same. The organic electroluminescence device includes a polycyclic compound represented by Formula 1 in a hole blocking layer and at least one of a first light emitting layer and an electron transport layer, wherein each of Y1 to Y5 and Y11 to Y15 is independently CH or N, at least four of Y1 to Y5 are CH, at least four of Y11 to Y15 are CH, and R1, R2, and R3 are as disclosed in the description.
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公开(公告)号：US20230180606A1
公开(公告)日：2023-06-08
申请号：US18160631
申请日：2023-01-27
Applicant: Samsung Display Co., LTD.
Inventor： Jaeyong LEE , Taekyung KIM , Minkyung KIM , Seulong KIM , Pilgu KANG , Jiyoung KWON , Soonchul CHANG , Jaehoon HWANG
CPC classification number: H10K85/6572 , H10K85/631 , H10K85/636 , H10K85/654 , H10K85/626 , H10K50/11 , H10K85/615 , H10K50/15 , H10K2101/30 , H10K50/16 , H10K2101/40 , H10K50/19
Abstract: Provided are an organic-light-emitting device and a display apparatus including the same. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including at least one light-emitting unit, wherein the at least one light-emitting unit includes: an emission layer; and a hole transport region between the first electrode and the emission layer and including a first hole transport (HT) layer, the emission layer includes a host, the first HT layer includes a first compound, a minimum bond dissociation energy (BDE1HT) of the first compound is larger than a triplet energy (T1,host) of the host, and a minimum bond dissociation energy (BDEhost) of the host is larger than the triplet energy (T1,host) of the host.
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公开(公告)号：US20230180503A1
公开(公告)日：2023-06-08
申请号：US17900271
申请日：2022-08-31
Applicant: Samsung Display Co., LTD.
Inventor： Yoonseok KA , Ji Young MOON , Hakchoong LEE , Pilgu KANG , Dong Chan KIM , Ha Jin SONG , Jung Ho CHOI , Jae Hoon HWANG
CPC classification number: H01L51/5068 , H01L27/3244 , H01L51/502 , H01L51/5084
Abstract: An embodiment provides a light emitting device including: a first electrode; a second electrode overlapping the first electrode in a plan view; and a light emitting part disposed between the first electrode and the second electrode. The second electrode includes a first layer disposed on the light emitting part and including a first organic material, and a metal thin film layer disposed on the first layer and including a first metal. The light emitting part includes an emission layer, a hole transport region disposed between the first electrode and the emission layer, and an electron transport region disposed between the emission layer and the second electrode. The first layer is disposed on the electron transport region.
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公开(公告)号：US20220328768A1
公开(公告)日：2022-10-13
申请号：US17709742
申请日：2022-03-31
Applicant: Samsung Display Co., Ltd.
Inventor： Seulong KIM , Pilgu KANG , Hajin SONG , Jihwan YOON , Yangjin CHO , Jungho CHOI , Jaehoon HWANG
IPC: H01L51/00
Abstract: Provided are a heterocyclic compound, a light-emitting device including the heterocyclic compound, and an electronic apparatus including the light-emitting device. The heterocyclic compound is represented by Formula 1, which is explained in the specification. The light-emitting device is capable of maintaining efficiency and color expression at constant levels.
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公开(公告)号：US20210028368A1
公开(公告)日：2021-01-28
申请号：US16933751
申请日：2020-07-20
Applicant: Samsung Display Co., Ltd.
Inventor： Jiyoung SONG , Seulong KIM , Pilgu KANG , Eungyoung PARK , Soonchul CHANG , Dongseob JEONG , Jaehoon HWANG
Abstract: A condensed cyclic compound is represented by Formula 1 and satisfies Equation 1. An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an organic layer between the first electrode and the second electrode and including at least one light-emitting unit; and at least one of the condensed cyclic compound. |EH,HOMO−EH,HOMO-1|≤0.3 eV Equation 1
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