公开(公告)号：US12232416B2

公开(公告)日：2025-02-18

申请号：US15293174

申请日：2016-10-13

Applicant: Samsung Display Co., Ltd.

Inventor： Hwan-Hee Cho ,  Myeong-Suk Kim ,  Sung-Wook Kim ,  Se-Hun Kim ,  Jin-Soo Hwang

IPC: H01L51/54 ,  C09K11/02 ,  C09K11/06 ,  H10K50/11 ,  H10K85/30 ,  H10K85/60 ,  H10K50/12 ,  H10K50/15 ,  H10K101/00 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40

Abstract: An 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 including an emission layer, wherein the organic layer includes a first compound, a second compound, a third compound, and a fourth compound, and the first compound to the fourth compound satisfy Equations 1 to 8: E1,LUMO≥E2,LUMO+0.15 electron volts (eV)  Equation 1 E1,HOMO≥E2,HOMO+0.15 eV  Equation 2 E1,T1≥E4,T1  Equation 3 E2,T1≥E4,T1  Equation 4 E3,T1≥E4,T1  Equation 5 E3,LUMO≥E2,LUMO+0.1 eV  Equation 6 −5.6 eV≥E3,HOMO  Equation 7 Egap1≥Egap3.  Equation 8

公开(公告)号：US12232412B2

公开(公告)日：2025-02-18

申请号：US18497143

申请日：2023-10-30

Applicant: Samsung Electronics Co., Ltd. ,  SAMSUNG SDI CO., LTD.

Inventor： Minsik Min ,  Sangmo Kim ,  Hosuk Kang ,  Wook Kim ,  Sungho Nam ,  Hyejin Bae ,  Jhunmo Son ,  Yongsik Jung ,  Jun Chwae

IPC: H01L51/54 ,  C07F15/00 ,  C09K11/06 ,  H10K85/30 ,  H10K50/11 ,  H10K101/10

Abstract: Provided are the organometallic compound represented by Formula 1 and an organic light-emitting device including the same: M, X1 to X4, X11, ring CY2 to ring CY4, T1, T2, R1 to R4, and a1 to a4 in Formula 1 are the same as described in the present specification.

公开(公告)号：US12225817B2

公开(公告)日：2025-02-11

申请号：US17739532

申请日：2022-05-09

Applicant: Samsung Electronics Co., Ltd. ,  Samsung SDI Co., Ltd.

Inventor： Sangmo Kim ,  Hyunjung Kim ,  Soonok Jeon ,  Yeonsook Chung ,  Miyoung Chae ,  Dalho Huh ,  Eunsuk Kwon ,  Jongsoo Kim ,  Myungsun Sim

IPC: H01L51/54 ,  C07D209/94 ,  C07D487/04 ,  C07D491/04 ,  C07D491/048 ,  C07D495/04 ,  C07D513/04 ,  C07D519/00 ,  C09K11/02 ,  C09K11/06 ,  H10K85/60 ,  H10K50/11 ,  H10K85/30 ,  H10K101/10

Abstract: A condensed cyclic compound represented by Formula 1: Ar1-L1-L2-Ar2  Formula 1 wherein Ar1, Ar2, L1, and L2 are the same as described in the specification.

公开(公告)号：US12167687B2

公开(公告)日：2024-12-10

申请号：US16391985

申请日：2019-04-23

Applicant: Samsung Display Co., Ltd.

Inventor： Sehun Kim ,  Dukki Kim ,  Seunguk Noh ,  Dongwoo Shin ,  Jaekook Ha ,  Eungdo Kim ,  Eunju Nam ,  Hyunwoo Lee ,  Jaesung Lim

IPC: H01L51/54 ,  H10K71/40 ,  H10K85/10 ,  H10K85/60 ,  H10K50/15

Abstract: An organic light-emitting device includes a first hole transport region including a polymer compound that includes a repeating unit derived from a compound including a moiety represented by Formula 1A and a second hole transport region including a first compound and a second compound, the first compound including a repeating unit represented by Formula 1, the second compound being a compound represented by Formula 1, and the third compound being a compound represented by Formula 3.

公开(公告)号：US12156464B2

公开(公告)日：2024-11-26

申请号：US16442940

申请日：2019-06-17

Applicant: Universal Display Corporation

Inventor： Chuanjun Xia ,  Chun Lin ,  Ting-Chih Wang

IPC: H01L51/54 ,  C09K11/06 ,  H10K85/40 ,  H10K85/60 ,  H10K50/11

Abstract: A composition formed of a mixture of two compounds having similar thermal evaporation properties that are pre-mixed into an evaporation source that can be used to co-evaporate the two compounds into an emission layer in OLEDs via vacuum thermal evaporation process is disclosed. The first and second compounds can have an evaporation temperature T1 and T2, respectively, of 150 to 350° C., and the absolute value of T1-T2 can be less than 20° C. The first compound can have a concentration C1 in the mixture and a concentration C2 in a film formed by evaporating the mixture in a vacuum deposition tool at a constant pressure between 1×10−6 Torr to 1×10−9 Torr, at a 2 Å/sec deposition rate on a surface positioned at a predefined distance away from the mixture being evaporated, where the absolute value of (C1−C2)/C1 is less than 5%.

公开(公告)号：US11976086B2

公开(公告)日：2024-05-07

申请号：US16666321

申请日：2019-10-28

Applicant: Samsung Display Co., Ltd.

Inventor： Jaesung Lee ,  Soobyung Ko ,  Sungbum Kim ,  Junghoon Han ,  Haejin Kim ,  Sujin Shin ,  Eunsoo Ahn ,  Eunyoung Lee ,  Hyunjung Lee ,  Mina Jeon

IPC: H01L51/54 ,  C07F15/00 ,  H10K50/11 ,  H10K85/30 ,  H10K101/10

CPC classification number: C07F15/0086 ,  H10K50/11 ,  H10K85/346 ,  H10K85/361 ,  H10K2101/10

Abstract: Provided are an organometallic compound, an organic light-emitting device including the organometallic compound, and an apparatus including the organic light-emitting device. The organometallic compound may be represented by the formula M11 M12 (L11)n11(L12)n12, wherein M11 and M12 are each independently selected from a Period 1 transition metal, a Period 2 transition metal, and a Period 3 transition metal; L11 is a ligand represented by Formula 1-1 shown below, L12 is selected from a monodentate ligand and a bidentate ligand, n11 is 1, and n12 is selected from 0, 1, 2, 3, and 4.

公开(公告)号：US11950501B2

公开(公告)日：2024-04-02

申请号：US17968388

申请日：2022-10-18

Applicant: Samsung Display Co., Ltd.

Inventor： Seok-Hwan Hwang ,  Young-Kook Kim ,  Yoon-Hyun Kwak ,  Jong-Hyuk Lee ,  Kwan-Hee Lee ,  Min-Seung Chun

IPC: H01L51/54 ,  C07D209/88 ,  C09K11/06 ,  H05B33/14 ,  H10K50/81 ,  H10K50/818 ,  H10K50/82 ,  H10K50/828 ,  H10K59/123 ,  H10K59/35 ,  H10K85/60 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/18 ,  H10K59/32 ,  H10K101/10 ,  H10K102/00 ,  H10K102/10

CPC classification number: H10K85/636 ,  C07D209/88 ,  C09K11/06 ,  H05B33/14 ,  H10K50/81 ,  H10K50/818 ,  H10K50/82 ,  H10K50/828 ,  H10K59/123 ,  H10K59/35 ,  H10K85/633 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1022 ,  C09K2211/1029 ,  C09K2211/185 ,  C09K2323/00 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/171 ,  H10K50/18 ,  H10K59/32 ,  H10K85/615 ,  H10K85/626 ,  H10K85/6572 ,  H10K2101/10 ,  H10K2102/00 ,  H10K2102/103 ,  H10K2102/351 ,  Y10S428/917 ,  Y10T428/31504

Abstract: An organic light emitting device including: a substrate; a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode and including an emission layer, wherein one of the first electrode and the second electrode is a reflective electrode and the other is a semitransparent or transparent electrode, and wherein the organic layer includes a layer having at least one of the compounds having at least one carbazole group, and a flat panel display device including the organic light emitting device. The organic light emitting device has low driving voltage, excellent current density, high brightness, excellent color purity, high efficiency, and long lifetime.

公开(公告)号：US11925041B2

公开(公告)日：2024-03-05

申请号：US17127045

申请日：2020-12-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Seo ,  Takeyoshi Watabe ,  Satomi Mitsumori

IPC: H01L51/54 ,  C07D241/38 ,  C07D403/12 ,  C07D405/10 ,  C09K11/02 ,  C09K11/06 ,  H10K50/11 ,  H10K85/30 ,  H10K85/60 ,  H10K50/13 ,  H10K59/35 ,  H10K101/00 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40

CPC classification number: H10K50/11 ,  C07D241/38 ,  C07D403/12 ,  C07D405/10 ,  C09K11/02 ,  C09K11/06 ,  H10K85/342 ,  H10K85/633 ,  H10K85/636 ,  H10K85/6572 ,  H10K85/6574 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1022 ,  C09K2211/1029 ,  C09K2211/1033 ,  C09K2211/1044 ,  C09K2211/1048 ,  C09K2211/1051 ,  C09K2211/1059 ,  C09K2211/1088 ,  C09K2211/1092 ,  C09K2211/185 ,  C09K2211/188 ,  H10K50/131 ,  H10K59/35 ,  H10K85/615 ,  H10K2101/10 ,  H10K2101/27 ,  H10K2101/30 ,  H10K2101/40 ,  H10K2101/90 ,  Y02P20/582

Abstract: To provide a light-emitting element with high emission efficiency and low driving voltage. The light-emitting element includes a guest material and a host material. A LUMO level of the guest material is lower than a LUMO level of the host material. An energy difference between the LUMO level and a HOMO level of the guest material is larger than an energy difference between the LUMO level and a HOMO level of the host material. The guest material has a function of converting triplet excitation energy into light emission. An energy difference between the LUMO level of the guest material and the HOMO level of the host material is larger than or equal to energy of light emission of the guest material.

公开(公告)号：US11917907B2

公开(公告)日：2024-02-27

申请号：US17532294

申请日：2021-11-22

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Kyoung-Jin Park ,  Tae-Jin Lee ,  Jae-Hoon Shim ,  Yoo Jin Doh ,  Hee-Choon Ahn ,  Young-Kwang Kim ,  Doo-Hyeon Moon ,  Jeong-Eun Yang ,  Su-Hyun Lee ,  Chi-Sik Kim ,  Ji-Song Jun

IPC: H01L51/54 ,  H10K85/60 ,  C09K11/06 ,  H05B33/20 ,  C07D209/86 ,  C07D405/14 ,  C07D409/14 ,  C09K11/02 ,  H10K50/11 ,  H10K50/15 ,  H10K101/10 ,  H10K101/00

CPC classification number: H10K85/633 ,  C07D209/86 ,  C07D405/14 ,  C07D409/14 ,  C09K11/025 ,  C09K11/06 ,  H05B33/20 ,  H10K85/631 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  C09K2211/1007 ,  C09K2211/1029 ,  C09K2211/1088 ,  C09K2211/1092 ,  C09K2211/185 ,  H10K50/11 ,  H10K50/15 ,  H10K50/156 ,  H10K85/615 ,  H10K85/624 ,  H10K85/626 ,  H10K2101/10 ,  H10K2101/90

Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.

公开(公告)号：US11882714B2

公开(公告)日：2024-01-23

申请号：US17691090

申请日：2022-03-09

Applicant: Samsung Display Co., Ltd.

Inventor： Naoyuki Ito ,  Seul-Ong Kim ,  Youn-Sun Kim ,  Dong-Woo Shin ,  Jung-Sub Lee

IPC: H01L51/54 ,  H10K50/18 ,  H10K50/165 ,  H10K50/16 ,  H10K50/11 ,  H10K50/15 ,  H10K85/30 ,  H10K85/60 ,  H10K101/10 ,  H10K101/30

CPC classification number: H10K50/18 ,  H10K50/165 ,  H10K50/166 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K85/324 ,  H10K85/342 ,  H10K85/622 ,  H10K85/626 ,  H10K85/631 ,  H10K85/633 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6576 ,  H10K2101/10 ,  H10K2101/30

Abstract: An organic light-emitting device and a flat panel display device, the organic-light emitting device including an anode; a cathode; and an organic layer therebetween including an emission layer, a hole transport region between the anode and the emission layer, the hole transport region including at least one of a hole injection layer, a hole transport layer, and an electron blocking layer, an electron transport region between the emission layer and the cathode, the electron transport region including at least one of a hole blocking layer, an electron transport layer, and an electron injection layer, and a buffer layer between the emission layer and the electron transport region, wherein the buffer layer includes a biscarbazole-based derivative and triphenylene-based derivative, and a triplet energy (ET1) of the biscarbazole-based derivative or the triphenylene-based derivative and a triplet energy (ET2) of a dopant of the emission layer satisfy the following relationship:






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