公开(公告)号：US20230189632A1

公开(公告)日：2023-06-15

申请号：US18163560

申请日：2023-02-02

Applicant: Arizona Board of Regents on behalf of Arizona State University

Inventor： Jian Li

IPC: H10K85/30

CPC classification number: H10K85/346 ,  H10K85/322 ,  H10K2101/27

Abstract: Organic light emitting devices (OLEDs) with emissive layers containing both phosphorescent Pt complexes and fluorescent emitters, are described. The devices presented employ both fluorescent and phosphorescent Pt complexes in order to redistribute the excited states to primarily reside on known stable fluorescent emitters to achieve high device operational stability but maintain the high efficiency characteristic of phosphorescent OLEDs.

公开(公告)号：US20240341186A1

公开(公告)日：2024-10-10

申请号：US18592732

申请日：2024-03-01

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takuya HARUYAMA ,  Harue OSAKA ,  Naoaki HASHIMOTO

IPC: H10K85/60 ,  C07F5/02 ,  C09K11/06 ,  H10K50/12 ,  H10K101/00

CPC classification number: H10K85/658 ,  C07F5/027 ,  C09K11/06 ,  C09K2211/1018 ,  H10K50/12 ,  H10K2101/27

Abstract: An organic compound is represented by General Formula (G1). In General Formula (G1), X1 to X4 each independently represent any one of groups represented by General Formulae (g1-1) to (g1-3). Two or three of X1 to X4 represent the group represented by General Formula (g1-1) or (g1-2). R1 to R14 each independently represent any one of hydrogen (including deuterium), a straight-chain alkyl group having 1 to 10 carbon atoms, a branched alkyl group having 3 to 10 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 12 carbon atoms, a substituted or unsubstituted cycloalkyl group having 4 to 10 carbon atoms and having a bridged structure, a trialkylsilyl group having 3 to 12 carbon atoms, a alkoxy group having 2 to 10 carbon atoms, and a fluoroalkyl group having 1 to 10 carbon atoms. Ar1 to Ar4 each independently represent a substituted or unsubstituted aryl group having 6 to 30 carbon atoms or a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms.

公开(公告)号：US20240324454A1

公开(公告)日：2024-09-26

申请号：US18603088

申请日：2024-03-12

Applicant: Samsung Display Co., Ltd.

Inventor： Hyunyoung Kim ,  Hyunwoo Lee

IPC: H10K85/60 ,  C09K11/06 ,  H10K50/15 ,  H10K50/16 ,  H10K85/30 ,  H10K85/40 ,  H10K101/00 ,  H10K101/25 ,  H10K101/60

CPC classification number: H10K85/6572 ,  C09K11/06 ,  H10K50/15 ,  H10K50/16 ,  H10K85/346 ,  H10K85/40 ,  H10K85/631 ,  H10K85/654 ,  H10K85/6574 ,  H10K85/658 ,  H10K2101/25 ,  H10K2101/27 ,  H10K2101/60

Abstract: An organic light-emitting device and an electronic apparatus including the same are provided. The organic light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer provided between the first electrode and the second electrode and including an emission layer, wherein the emission layer includes a first compound that is a hole-transporting compound, a second compound that is an electron-transporting compound, a third compound capable of emitting phosphorescence, and a fourth compound capable of emitting delayed fluorescence, and a value of R0 is at least 3.5 nm.

公开(公告)号：US20240324265A1

公开(公告)日：2024-09-26

申请号：US18680760

申请日：2024-05-31

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Nobuharu OHSAWA ,  Satoshi SEO

IPC: H10K50/11 ,  C09K11/06 ,  H10K50/12 ,  H10K85/60 ,  H10K101/00 ,  H10K101/10 ,  H10K101/30

CPC classification number: H10K50/11 ,  C09K11/06 ,  H10K50/121 ,  H10K85/615 ,  H10K2101/10 ,  H10K2101/27 ,  H10K2101/30 ,  H10K2101/90

Abstract: A light-emitting element including a fluorescent material as a light-emitting material and having high emission efficiency is provided. The light-emitting element includes a pair of electrodes and an EL layer provided between the pair of electrodes. The EL layer includes a host material and a guest material. The host material is capable of exhibiting thermally activated delayed fluorescence at room temperature. The guest material is capable of exhibiting fluorescence. The second triplet excitation energy level of the guest material is higher than or equal to the lowest singlet excitation energy level of the guest material.

公开(公告)号：US20240306490A1

公开(公告)日：2024-09-12

申请号：US18645413

申请日：2024-04-25

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Ryota TAKAHASHI ,  Tomoki KATO ,  Hirokatsu ITO ,  Masahiro KAWAMURA ,  Masakazu FUNAHASHI ,  Hiroyuki SAITO ,  Yuichiro KAWAMURA ,  Yoshiaki TAKAHASHI ,  Tetsuya MASUDA ,  Hitoshi KUMA

IPC: H10K85/60 ,  C07C211/61 ,  C07D209/86 ,  C07D213/16 ,  C07D213/22 ,  C07D231/56 ,  C07D235/18 ,  C07D237/08 ,  C07D239/26 ,  C07D239/74 ,  C07D241/12 ,  C07D251/24 ,  C07D307/92 ,  C07D333/74 ,  C07D333/76 ,  C07D471/04 ,  C09K11/06 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/165 ,  H10K50/18 ,  H10K71/00 ,  H10K71/16 ,  H10K101/00 ,  H10K101/10 ,  H10K102/00

CPC classification number: H10K85/624 ,  C07C211/61 ,  C07D209/86 ,  C07D213/16 ,  C07D213/22 ,  C07D231/56 ,  C07D235/18 ,  C07D237/08 ,  C07D239/26 ,  C07D239/74 ,  C07D241/12 ,  C07D251/24 ,  C07D307/92 ,  C07D333/74 ,  C07D333/76 ,  C07D471/04 ,  C09K11/06 ,  H10K85/623 ,  H10K85/633 ,  H10K85/654 ,  C07C2603/18 ,  C07C2603/52 ,  C07C2603/94 ,  C07C2603/97 ,  C09K2211/1018 ,  H10K50/11 ,  H10K50/15 ,  H10K50/156 ,  H10K50/165 ,  H10K50/166 ,  H10K50/18 ,  H10K71/00 ,  H10K71/164 ,  H10K2101/10 ,  H10K2101/27 ,  H10K2102/351

Abstract: Compounds of formulae (2-7) or (2-9) are provided:




Also provided are organic electroluminescence (EL) devices containing the compounds having a high emission efficiency when operated at low voltage and a long lifetime and electronic devices including such organic EL devices.

公开(公告)号：US12082490B2

公开(公告)日：2024-09-03

申请号：US18163560

申请日：2023-02-02

Applicant: Arizona Board of Regents on behalf of Arizona State University

Inventor： Jian Li

IPC: H01L51/50 ,  H10K85/30 ,  H10K101/00

CPC classification number: H10K85/346 ,  H10K85/322 ,  H10K2101/27

Abstract: Organic light emitting devices (OLEDs) with emissive layers containing both phosphorescent Pt complexes and fluorescent emitters, are described. The devices presented employ both fluorescent and phosphorescent Pt complexes in order to redistribute the excited states to primarily reside on known stable fluorescent emitters to achieve high device operational stability but maintain the high efficiency characteristic of phosphorescent OLEDs.

公开(公告)号：US20240260445A1

公开(公告)日：2024-08-01

申请号：US18437316

申请日：2024-02-09

Applicant: UNIVERSAL DISPLAY CORPORATION

Inventor： Hsiao-Fan CHEN ,  Tyler FLEETHAM ,  Rasha HAMZE

IPC: H10K85/30 ,  C07F5/02 ,  C09K11/02 ,  C09K11/06 ,  H10K50/12 ,  H10K101/00

CPC classification number: H10K85/322 ,  C07F5/027 ,  C09K11/02 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1018 ,  H10K50/121 ,  H10K2101/27

Abstract: Provided are compounds of Formula I




that are useful as emitters in OLEDs.

公开(公告)号：US12048176B2

公开(公告)日：2024-07-23

申请号：US18214118

申请日：2023-06-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Nobuharu Ohsawa ,  Satoshi Seo

IPC: H01L51/50 ,  C09K11/06 ,  G06F3/041 ,  H10K50/12 ,  H10K85/30 ,  H10K85/60 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3275 ,  H10K101/00 ,  H10K101/30

CPC classification number: H10K50/121 ,  C09K11/06 ,  G06F3/041 ,  H10K85/342 ,  H10K85/633 ,  H10K85/657 ,  H10K85/6572 ,  H10K85/6576 ,  C09K2211/1059 ,  C09K2211/185 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3275 ,  H10K85/622 ,  H10K85/6574 ,  H10K2101/27 ,  H10K2101/30

Abstract: An object is to provide a light-emitting element with high emission efficiency. The light-emitting element contains first to third organic compounds. The first organic compound has a function of converting triplet excitation energy into light. The second organic compound has a benzofuropyrimidine skeleton or a benzothienopyrimidine skeleton. The third organic compound is a fluorescent compound. Light emitted from the light-emitting element is light emitted from the third organic compound that receives excitation energy from the first organic compound or from an exciplex formed by the first and second organic compounds.

公开(公告)号：US11950439B2

公开(公告)日：2024-04-02

申请号：US17959225

申请日：2022-10-03

Applicant: LG Display Co., Ltd.

Inventor： Eun-Jung Park ,  Jung-Keun Kim ,  Wook Song ,  Tae-Shick Kim

IPC: H10K50/13 ,  H10K50/11 ,  H10K50/15 ,  H10K50/19 ,  H10K59/12 ,  H10K59/38 ,  H10K85/30 ,  H10K101/00 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40

CPC classification number: H10K50/131 ,  H10K50/11 ,  H10K50/15 ,  H10K50/19 ,  H10K59/38 ,  H10K59/12 ,  H10K85/342 ,  H10K2101/10 ,  H10K2101/27 ,  H10K2101/30 ,  H10K2101/40 ,  H10K2101/90

Abstract: Disclosed herein are a white organic light-emitting device. The white organic light-emitting device enables an overall improvement in characteristics such as color temperature, efficiency, luminance, and service life, by changing the configuration of different types of emission layers in contact with each other, and a display device using the same.

公开(公告)号：US20240008301A1

公开(公告)日：2024-01-04

申请号：US18214844

申请日：2023-06-27

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Toshiki Sasaki ,  Hiromitsu KIDO ,  Tsunenori SUZUKI ,  Nobuharu OHSAWA ,  Hideko YOSHIZUMI ,  Satoshi SEO ,  Satoko NUMATA ,  Eriko AOYAMA ,  Yui YOSHIYASU

IPC: H10K50/13 ,  H10K50/16 ,  H10K50/15 ,  H10K85/60 ,  C09K11/06

CPC classification number: H10K50/13 ,  H10K50/16 ,  H10K50/15 ,  H10K85/649 ,  C09K11/06 ,  H10K2101/27

Abstract: A green phosphorescent light-emitting device with a long lifetime is provided. The light-emitting device includes a first electrode, a second electrode, and a light-emitting layer. The light-emitting layer is between the first electrode and the second electrode. The light-emitting layer includes a first organic compound, a second organic compound, and a phosphorescent light-emitting substance. The first organic compound includes a heteroaromatic ring skeleton and an aromatic hydrocarbon group. The second organic compound includes a bicarbazole skeleton. The lowest triplet excited level of the first organic compound is derived from only the aromatic hydrocarbon group. The energy of the lowest triplet excited level of the second organic compound is higher than or equal to 2.20 eV and lower than or equal to 2.65 eV.