Abstract: A method for producing silicon carbide directly from comminuted coal and a silicon precursor is described. The process includes coating comminuted coal with a silicon precursor and heating the silicon precursor coated comminuted coal to initially form polymerized preceramic silicon-carbon foam and then further heating to form silicon carbide foam.
Abstract: A compound comprising a ligand LA, having a structure of Formula I, is provided. In Formula I, A1 to A8 are each independently CR or N; at least two adjacent ones of A1 to A8 are CR and the Rs are joined together to form a six-membered ring fused to ring A or ring C; X is O, S, or Se; each R and RB is independently hydrogen or a substituent; any adjacent substituents are optionally joined or fused into a ring; the ligand LA is coordinated to a metal M; the metal M is bonded to ring A through a M-C bond; the metal M can be coordinated to other ligands; and the ligand LA is optionally linked with other ligands. Formulations, OLEDs, and consumer products containing such compounds are also disclosed.
Type:
Grant
Filed:
August 5, 2021
Date of Patent:
June 20, 2023
Assignee:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Mingjuan Su, Walter Yeager, Alan Deangelis, Bin Ma, Jui-Yi Tsai, Lichang Zeng, Chuanjun Xia
Abstract: The present invention relates to an organic mixture and an application thereof in organic electronic devices. The organic mixture comprises a spirofluorene organic compound containing a fused heterocyclic ring and an aromatic fused heterocyclic organic compound containing an electron-donating group. A combination of the two materials may be used as a host material of a phosphorescent organic light-emitting diode (OLED), which may use the energy of excitons and balance the charge transport to the greatest extent and which may effectively reduce the concentration of excitons and the operating voltage of a corresponding device, thereby effectively improving the efficiency and service life of the related electronic device in order to provide an effective solution for improving the overall performance of an organic electronic device.
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 and including an emission layer, wherein the organic layer includes the compound of Formula 1: When the compound of Formula 1 is used in an organic light-emitting device, the organic light-emitting device may have high-efficiency characteristics as compared to a case where a compound of the related art is used, resulting particularly in excellent lifespan improvement effects, and accordingly, significantly improved lifespan.
Type:
Grant
Filed:
March 12, 2020
Date of Patent:
June 6, 2023
Assignee:
Samsung Display Co., Ltd.
Inventors:
Dongjun Kim, Minji Kim, Eunjae Jeong, Sohee Jo, Sanghyun Han
Abstract: An organometallic compound includes a hexadentate ligand bonded to a metal atom (M1). An energy level (E3MC) of a 3MC state (triplet metal centered state) of the organometallic compound is higher than an energy level (E3MLCT) of a 3MLCT state (triplet metal-to-ligand charge transfer state) of the organometallic compound.
Type:
Grant
Filed:
April 19, 2019
Date of Patent:
June 6, 2023
Assignee:
Samsung Display Co., Ltd.
Inventors:
Sunwoo Kang, Soobyung Ko, Taekyung Kim, Sangho Jeon, Youngmi Cho
Abstract: The present disclosure relates to the field of organic electroluminescence technology, and in particular to a compound, an organic electroluminescent device, and a display equipment. The compound of the present disclosure has the structure shown in Formula (I).
Abstract: A composite material including a black pigment and a textile material. The composite material has a reflectivity toward near infrared electromagnetic radiation having a wavelength from 800 nm to 2500 nm of greater than or equal to 12%, and has a reflectivity toward visible light having a wavelength from 350 nm to 750 nm of less than or equal to 10%. The composite material also has a blackness (My) from 125 to 165.
Type:
Grant
Filed:
June 8, 2022
Date of Patent:
May 23, 2023
Assignees:
Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
Inventors:
Michael P. Rowe, Songtao Wu, Debasish Banerjee, Charles R. Rutledge, Torin C. Peck, Michael Jones
Abstract: Provided is an amine based compound of Chemical Formula 1: and an organic electroluminescent device comprising the same. The amine based compound can be used as a material of an organic material layer of an organic electroluminescent device, and can achieve an improvement of the efficiency, a low driving voltage and/or an improvement of the lifetime characteristic when applied to the organic electroluminescent device.
Type:
Grant
Filed:
November 15, 2018
Date of Patent:
May 23, 2023
Assignee:
LG CHEM, LTD.
Inventors:
Jae Seung Ha, Sung Jae Lee, Hyeon Jin Mun
Abstract: Described herein are an SiC material and a method for manufacturing same. The SiC material includes an SiC layer having a low thermal conductivity region formed in at least a portion thereof, wherein the low thermal conductivity region has an average crystal grain size of 3.5 ?m or less and (111) plane preferential growth according to X-ray diffraction analysis.
Abstract: The present disclosure provides a compound for a display panel. The compound includes elements selected from O, S or N, electron-donor groups and electron-accepting groups. The OLED device in the display panel includes an anode, a cathode, and at least one organic thin film layer between the anode and the cathode. The organic thin film layer includes a light emitting layer, the light emitting layer includes the compound of the present disclosure, and the compound is used to be any one of a host material, a doping material, and a co-doping material. The compound reduces energy level difference between singlet and triplet states ?EST through design of the compound molecular structure. The compound realizes an efficient reverse intersystem crossing process, has typical TADF characteristics, and can be used as a light-emitting layer material of an OLED device to improve luminous efficiency and working life.
Abstract: An organic electroluminescence device and a display apparatus, where the organic electroluminescence device includes an organic light emitting layer which includes a host material, a sensitizer material, and a resonance thermally activated delayed fluorescent material, where the host material is a wide bandgap material, and the sensitizer material is an exciplex material, a singlet state energy level for the wide bandgap material is greater than a singlet state energy level for the exciplex, and a triplet state energy level for the wide bandgap material is greater than a triplet state energy level for the exciplex, and a singlet state energy level for the exciplex material is greater than a singlet state energy level for the resonance delayed fluorescent material, and a triplet state energy level for the exciplex material is greater than a triplet state energy level for the resonance delayed fluorescent material.
Type:
Grant
Filed:
February 28, 2020
Date of Patent:
April 25, 2023
Assignees:
KunShan Go-Visionox Opto-Electronics Co., Ltd, TSINGHUA UNIVERSITY
Inventors:
Lian Duan, Minghan Cai, Xiaozeng Song, Jinbei Wei
Abstract: The present disclosure relates to an electroluminescent material ink, comprising a quantum dot material, an organic light emitting material, and an organic solvent. The organic solvent includes a first solvent shown in general formula (I): wherein R0 is CmH2m+1; R1, R2, R3, and R4 are each independently CnH2n+1, 0?m?8 and 0<n?8, or 0<m?8 and 0?n?8. The electroluminescent material ink has good physical parameters and can effectively prevent nozzle blockage.
Abstract: An article adapted to receive multiple battery cells, such as a battery module, which provides thermal insulation between adjacent battery cells using thermally insulating layers comprising a ceramifiable elastomeric silicone material, using fumed silica (amorphous SiO2) or fumed silica (amorphous SiO2)+quartz (crystalline SiO2). There is also provided, the use of said ceramifiable elastomeric silicone material as a means of delaying and/or preventing thermal runaway in such an article. Typically, the battery cells for which this article is designed are lithium-ion battery cells.
Type:
Grant
Filed:
February 17, 2020
Date of Patent:
April 18, 2023
Assignees:
DOW SILICONES CORPORATION, DOW GLOBAL TECHNOLOGIES LLC
Inventors:
Yusheng Chen, Peng Wang, Xiangyang Tai, Yi Guo, Rui Wang, Yi Zhang, Qing Shi
Abstract: The present invention encompasses materials and methods for catalyzing the cross-linking and curing of siloxane polymers. In particular, the present disclosure provides materials, methods, and conditions for vapor phase catalysis for curing organosiloxane polymers and resins, including resin linear organosiloxane block copolymers, as well as the incorporation of those methods into processes for making light emitting devices, including light emitting diodes.
Type:
Grant
Filed:
August 19, 2020
Date of Patent:
April 18, 2023
Assignee:
Lumileds LLC
Inventors:
Daniel B. Roitman, Danielle R. Chamberlin, David B. Roberts
Abstract: The present invention concerns a solid nanocomposite material consisting of a polymer-matrix in which are dispersed alkali metal, hydronium or ammonium salts of polyanionic components, wherein the polymer-matrix comprises at least a linear or branched polymer or copolymer containing one or several poly(ethylene oxide) (PEO) chains, said polymer or copolymer being optionally crosslinked and each PEO chain having at least 4 ethylene oxide monomer units. The present invention relates also to a photonic, e.g. optoelectronic, device comprising such a nanocomposite material. Such material and device can be used as phosphorescence emitter, for crop growth lighting or for generating singlet oxygen.
Type:
Grant
Filed:
October 30, 2018
Date of Patent:
April 4, 2023
Assignees:
Universite de Rennes 1, Centre National de la Recherche Scientifique (CNRS), Universidade de Franca—UNIFRAN
Inventors:
Yann Molard, Maria De Los Angeles Amela-Cortes, Malo Robin, Stephane Cordier, Eduardo Ferreira Molina
Abstract: A quantum dot composition includes quantum dots and a leveling agent, wherein the leveling agent includes a first repeating unit represented by Formula 1 and a second repeating unit represented by Formula 2: A light-emitting device and a method of manufacturing the same are also provided.
Type:
Grant
Filed:
April 22, 2020
Date of Patent:
March 28, 2023
Assignee:
Samsung Display Co., Ltd.
Inventors:
Minki Nam, Yunku Jung, Jaehong Park, Dukki Kim, Sungwoon Kim
Abstract: A method of forming an polymer composites is disclosed herein that includes infiltrating CNT sponges with a polymer or metal to form a composite. The method uses a relatively easy, scalable, and low-cost synthesis process that makes the composites attractive as TIM. CNTs in the sponge structure are covalently bonded, resulting in a low Young's modulus while at the same time maintaining a good thermal conductivity. This strategy makes it possible to obtain both high deformability and high thermal conductivity, which are difficult to have simultaneously due to their adverse correlation.