公开(公告)号：US12239015B2

公开(公告)日：2025-02-25

申请号：US16526083

申请日：2019-07-30

Applicant: University of Southern California

Inventor： Mark E. Thompson ,  Cong Trinh ,  Peter I. Djurovich ,  Sarah M. Conron

IPC: H01L51/00 ,  B82Y10/00 ,  C09B47/00 ,  C09B57/10 ,  H01L51/42 ,  H10K30/20 ,  H10K85/20 ,  H10K85/30 ,  H10K30/81 ,  H10K50/11 ,  H10K101/30 ,  H10K101/40

Abstract: Disclosed herein are organic photosensitive optoelectronic devices comprising acceptor and/or donor sensitizers to increase absorption and photoresponse of the photoactive layers of the devices. In particular, devices herein include at least one acceptor layer and at least one donor layer, wherein the acceptor layer may comprise a mixture of an acceptor material and at least one sensitizer, and the donor layer may comprise a mixture of a donor material and at least one sensitizer. Methods of fabricating the organic photosensitive optoelectronic devices are also disclosed.

公开(公告)号：US12239013B2

公开(公告)日：2025-02-25

申请号：US18364552

申请日：2023-08-03

Applicant: Universal Display Corporation

Inventor： Eric A. Margulies ,  Zhiqiang Ji ,  Nicholas J. Thompson ,  Geza Szigethy ,  Michael S. Weaver ,  Jerald Feldman

IPC: H10K85/30 ,  H10K50/11 ,  H10K50/125 ,  H10K50/13 ,  H10K50/17 ,  H10K50/18 ,  H10K50/81 ,  H10K50/82 ,  H10K50/15 ,  H10K50/16 ,  H10K101/10 ,  H10K101/30

Abstract: Provided is an OLED structure includes an organic layer having a primary phosphorescent emitter and a first host; where one of the following conditions is true: (1) the organic layer further includes a secondary emitter; or (2) the OLED further includes a second organic layer where the second organic layer includes a secondary emitter. The primary phosphorescent emitter has a peak emission wavelength λmax that is ≥600 nm and ≤750 nm; the secondary emitter has a peak emission wavelength λmax that is ≥750 nm; the primary phosphorescent emitter is capable of transferring energy to the secondary emitter; the first host has a lowest excited state triplet energy T1 that is at least 0.1 eV higher than that of the primary phosphorescent emitter; the primary phosphorescent emitter has the formula Pt(L1)m; L1 can represent one or more ligands that are the same or different; each L1 is independently monodentate or multidentate; and m represents a maximum possible number of ligands L1 that can coordinate to Pt.

公开(公告)号：US12225760B2

公开(公告)日：2025-02-11

申请号：US18599472

申请日：2024-03-08

Applicant: Universal Display Corporation

Inventor： Michael Fusella ,  Nicholas J. Thompson

IPC: H10K50/00 ,  H01L33/44 ,  H10K50/11 ,  H10K50/85 ,  H10K101/10 ,  H10K101/30 ,  H10K102/00

Abstract: Provided are compounds, formulations comprising compounds, and devices that utilize compounds, where the devices include a substrate, a first electrode, an organic emissive layer comprising an organic emissive material disposed over the first electrode. The device includes an enhancement layer, comprising a plasmonic material exhibiting surface plasmon resonance that non-radiatively couples to the organic emissive material and transfers excited state energy from the organic emissive material to the non-radiative mode of surface plasmon polaritons. The enhancement layer is provided no more than a threshold distance away from the organic emissive layer, where the organic emissive material has a total non-radiative decay rate constant and a total radiative decay rate constant due to the presence of the enhancement layer. At least one of the organic emissive material and the organic emissive layer has a vertical dipole ratio (VDR) value of equal or greater than 0.33.

公开(公告)号：US12225748B2

公开(公告)日：2025-02-11

申请号：US18788835

申请日：2024-07-30

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Seo ,  Tatsuyoshi Takahashi ,  Takeyoshi Watabe ,  Satomi Mitsumori

IPC: H10K50/12 ,  C07F15/00 ,  C09K11/06 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K59/12 ,  H10K59/38 ,  H10K59/40 ,  H10K85/30 ,  H10K85/60 ,  H10K101/00 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40

Abstract: A light-emitting element with high emission efficiency. The light-emitting element includes a first organic compound, a second organic compound, and a guest material. The LUMO level of the first organic compound is lower than the LUMO level of the second organic compound. The HOMO level of the first organic compound is lower than the HOMO level of the second organic compound. The HOMO level of the guest material is higher than the HOMO level of the second organic compound. The energy difference between the LUMO level of the guest material and the HOMO level of the guest material is larger than the energy difference between the LUMO level of the first organic compound and the HOMO level of the second organic compound. The guest material has a function of converting triplet excitation energy into light emission. The first organic compound and the second organic compound form an exciplex.

公开(公告)号：US12201009B2

公开(公告)日：2025-01-14

申请号：US17519297

申请日：2021-11-04

Applicant: LG DISPLAY CO., LTD.

Inventor： Dong-Ryun Lee ,  Hye-Gun Ryu ,  Ik-Rang Choe ,  Jun-Yun Kim

IPC: H10K85/30 ,  H10K50/11 ,  H10K50/19 ,  H10K101/30 ,  H10K101/40

Abstract: An organic light emitting diode (OLED) including at least one emitting material layer (EML) disposed between two electrodes and comprising a first compound including a fused ring of boron and oxygen as a nuclear atom and a second compound including a fused ring of born and nitrogen as a nuclear atom and an organic light emitting device including the OLED is disclosed. The first compound and the second compound may be the same emitting material layer or adjacently disposed emitting material layers. The OLED can lower its driving voltage and improve its luminous efficiency using the first and second compounds with adjusting their energy levels.

公开(公告)号：US12187748B2

公开(公告)日：2025-01-07

申请号：US17450917

申请日：2021-10-14

Applicant: UNIVERSAL DISPLAY CORPORATION

Inventor： Bin Ma ,  Bert Alleyne ,  Pierre-Luc Boudreault

IPC: H01L51/50 ,  C07F15/00 ,  H10K85/30 ,  H10K85/40 ,  H10K85/60 ,  H10K50/11 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40

Abstract: Provided are phenylthienothiazole containing compounds. The compound of the present invention comprises a first phenylthienothiazole-derived ligand LA according to Formula I as described herein which is coordinated to Ir to form a 5-membered chelate ring. Also provided are formulations comprising these compounds. Further provided are OLEDs and related consumer products that utilize these compounds.

公开(公告)号：US20250008837A1

公开(公告)日：2025-01-02

申请号：US18815138

申请日：2024-08-26

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Sayaka MIZUTANI ,  Takayasu SADO

IPC: H10K85/60 ,  C07D405/10 ,  C07D405/14 ,  C07D409/10 ,  C07D409/14 ,  C09K11/02 ,  C09K11/06 ,  H10K50/11 ,  H10K50/16 ,  H10K50/17 ,  H10K50/18 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40 ,  H10K102/00 ,  H10K102/10

Abstract: An organic EL device includes an anode, an emitting layer, an electron transporting zone and a cathode in this sequence, in which the electron transporting zone contains an aromatic heterocyclic derivative represented by a formula (1) below. In the formula (1), X1 to X3 are a nitrogen atom or CR1, and A is represented by a formula (2) below. In the formula (2), L1 is s single bond or a linking group, and HAr is represented by a formula (3) below. In the formula (3), Y1 is an oxygen atom, a sulfur atom or the like, and one of X11 to X18 is a carbon atom bonded to L1 by a single bond and the rest of X11 to X18 are a nitrogen atom or CR13. (HAr)a-L1-  (2)

公开(公告)号：US12178061B2

公开(公告)日：2024-12-24

申请号：US17600278

申请日：2020-11-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xiaojin Zhang ,  Huiyun Yang ,  Changho Lee

IPC: H10K50/12 ,  H10K101/20 ,  H10K101/30

Abstract: The disclosure relates to an organic light emitting diode, a method for manufacturing the same, and a display panel. The organic light emitting diode includes: a first electrode; a second electrode disposed opposite to the first electrode; a light-emitting layer between the first electrode and the second electrode; the light-emitting layer includes a first light-emitting sub-layer and a second light-emitting sub-layer; the first light-emitting sub-layer includes a host material, a TADF sensitizer and a fluorescent guest material; the second light-emitting sub-layer includes the host material or includes the host material and the TADF sensitizer. The light-emitting layer of the organic light emitting diode of the present disclosure includes the first light-emitting sub-laver and the second light-emitting sub-layer, and thus the luminous efficiency of the red light-emitting device, the green light-emitting device, and the blue light-emitting device can be harmonized by effectively adjusting a thickness of the second light-emitting sub-layer.

公开(公告)号：US12171108B2

公开(公告)日：2024-12-17

申请号：US17358660

申请日：2021-06-25

Applicant: Samsung Display Co., Ltd.

Inventor： Hojung Syn

IPC: H10K50/11 ,  C09K11/06 ,  H10K50/00 ,  H10K85/30 ,  H10K85/60 ,  H10K101/00 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40 ,  H10K102/00

Abstract: An organic electroluminescence device according to an embodiment includes a first electrode, a hole transport region disposed on the first electrode, an exciton diffusion layer disposed on the hole transport region and including a first host represented by Formula 1, an emission layer disposed on the exciton diffusion layer and including a second host, a third host, and a phosphorescent dopant, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region. The organic electroluminescence device exhibits high efficiency and a long service life.

公开(公告)号：US20240414932A1

公开(公告)日：2024-12-12

申请号：US18807908

申请日：2024-08-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Heunggyu KIM ,  Sehun KIM ,  Taeheon KANG ,  Hyeran MUN ,  Juyon LEE ,  Jaekook HA

IPC: H10K50/11 ,  H10K50/16 ,  H10K71/00 ,  H10K71/12 ,  H10K85/60 ,  H10K101/30 ,  H10K101/40

Abstract: A composition for manufacturing a light-emitting device includes: a solvent; and a first compound and a second compound, each dispersed in the solvent; wherein a molecular weight of the first compound is 750 g/mol or less, a molecular weight of the second compound is greater than 750 g/mol, a lowest unoccupied molecular orbital (LUMO) energy level of the second compound is greater than −2.4 eV, a highest occupied molecular orbital (HOMO) energy level of the second compound is less than −5.6 eV, and a bandgap energy of the second compound is greater than 3.2 eV.