Fluroescent, Phosphorescent, Or Luminescent Layer Patents (Class 428/690)
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Patent number: 11519874Abstract: A humidity sensor is provided. The humidity sensor includes a flexible substrate, a moisture absorption prevention layer covering the flexible substrate, a dielectric layer on the moisture absorption prevention layer, hydrophobic patterns on the dielectric layer, a first electrode between the moisture absorption prevention layer and the dielectric layer, and a second electrode spaced apart from the first electrode between the moisture absorption prevention layer and the dielectric layer. The first electrode has a thickness greater than that of the moisture absorption prevention layer.Type: GrantFiled: August 19, 2021Date of Patent: December 6, 2022Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Woo Seok Yang, Sunghoon Hong, Gyu Ri Lim
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Patent number: 11522135Abstract: An organic electroluminescence device and a method of manufacturing an organic electroluminescence device, the device including a first electrode; a second electrode on the first electrode; and an emission layer between the first electrode and the second electrode, wherein the emission layer includes a first host represented by the following Formula 1, and a second host represented by one of the following Formula 2-1 to Formula 2-5:Type: GrantFiled: July 3, 2019Date of Patent: December 6, 2022Assignee: Samsung Display Co., Ltd.Inventor: Minkyung Kim
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Patent number: 11522138Abstract: A novel heterocyclic compound is provided. In particular, a novel heterocyclic compound which can improve the element characteristics of a light-emitting element is provided. A novel light-emitting element with high emission efficiency and high heat resistance is provided. A heterocyclic compound represented by General Formula (G1). A represents any of a dibenzothiophenyl group, a dibenzofuranyl group, and a carbazolyl group. DBq represents a dibenzo[f,h]quinoxalinyl group. In addition, n is 0 or 1. Each of Ar1 to Ar4 independently represents a substituted or unsubstituted arylene group having 6 to 10 carbon atoms. In Ar1 to Ar4, the adjacent arylene groups may be bonded to each other to form a ring. When the adjacent arylene groups in Ar1 to Ar4 form a fluorene skeleton, the fluorene skeleton may have a substituent.Type: GrantFiled: October 19, 2016Date of Patent: December 6, 2022Inventors: Sachiko Kawakami, Yoshimi Ishiguro, Tatsuyoshi Takahashi, Takao Hamada
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Patent number: 11512101Abstract: The present invention relates to an organic electroluminescent device comprising a light-emitting layer B containing at least one host compound H of Formula (I) wherein each of X?1 and X?2 is independently from another selected from the group consisting of nitrogen and an optionally substituted carbon atom, and wherein at least one of R?1—R?10 is CN and at least one of RA—RE is a substituted silane residue.Type: GrantFiled: December 11, 2019Date of Patent: November 29, 2022Assignee: Samsung Display Co., Ltd.Inventor: Sebastian Dueck
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Patent number: 11508913Abstract: The present invention includes a novel series of host materials for OLEDs based on substituted fused 1,2,4-triazines, represented by Formula I. The invention also includes an organic light-emitting device comprising an anode, a cathode, and an organic layer, disposed between the anode and the cathode, comprising a compound of Formula I. The compounds of the invention may improve the device EQE and lifetime.Type: GrantFiled: July 3, 2018Date of Patent: November 22, 2022Assignee: Universal Display CorporationInventors: Alexey Borisovich Dyatkin, Bin Ma
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Patent number: 11502261Abstract: The present disclosure relates to a compound represented by Formula 1 and an organic light emitting device using the same. The compound used as a material of an organic material layer of the organic light emitting device provides improved efficiency, low driving voltage, and improved lifetime characteristic.Type: GrantFiled: May 2, 2018Date of Patent: November 15, 2022Assignee: LG CHEM LTD.Inventors: Wanpyo Hong, Min Seung Chun, Kyung Seok Jeong, Jin Joo Kim, Ok Keun Song, Hongsik Yoon
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Patent number: 11495750Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound of the present disclosure, an organic electroluminescent device having low driving voltage, high luminous efficiency, and/or excellent lifespan characteristics can be provided.Type: GrantFiled: October 26, 2017Date of Patent: November 8, 2022Inventors: Doo-Hyeon Moon, Bitnari Kim, Sang-Hee Cho
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Patent number: 11485706Abstract: A novel composition formed of a first compound is disclosed where the first compound is selected fromType: GrantFiled: August 22, 2019Date of Patent: November 1, 2022Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Bin Ma, Ting-Chih Wang, Vadim Adamovich
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Patent number: 11489125Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode provided on the first electrode, and a plurality of organic material layers provided between the first electrode and the second electrode, wherein at least one organic material layer among the plurality of organic material layers include a monoamine compound, and the monoamine compound includes a core structure including two condensed rings which are combined to form a spiro structure, where each condensed ring has a condensed structure of three or more pentagonal or hexagonal rings. High emission efficiency may be achieved.Type: GrantFiled: May 3, 2019Date of Patent: November 1, 2022Assignee: Samsung Display Co., Ltd.Inventor: Takuya Uno
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Patent number: 11482677Abstract: The present specification relates to a compound and an organic electronic device including the same.Type: GrantFiled: January 9, 2017Date of Patent: October 25, 2022Inventors: Yongbum Cha, Sung Kil Hong, Jungoh Huh, Jin Joo Kim
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Patent number: 11482683Abstract: Iridium complexes comprising three different bidentate ligands and their use in OLEDs to enhance the device efficiency and lifetime are disclosed. The complexes have a structure of the formula Ir(LA)(LB)(LC), where ligand LA is selected from a variety of structures, ligand LB has the structure and LC has the structure In these structures, rings A, B, C, and D are each independently a 5 or 6-membered carbocyclic or heterocyclic ring; R1, R2, R3, RA, RB, RC, and RD can be any of a variety of substituents, and Z1 and Z2 are each independently C or N.Type: GrantFiled: June 9, 2017Date of Patent: October 25, 2022Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Jui-Yi Tsai, Zhiqiang Ji, Alexey Borisovich Dyatkin, Chuanjun Xia, Chun Lin, Lichang Zeng, Walter Yeager
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Patent number: 11469379Abstract: Provided are a compound of Formula 1 and an organic electric element including a first electrode, a second electrode, and an organic material layer between the first electrode and the second electrode and comprising the compound, the element showing improved luminescence efficiency, stability, and life span.Type: GrantFiled: August 2, 2019Date of Patent: October 11, 2022Assignee: DUK SAN NEOLUX CO., LTD.Inventors: Soung Yun Mun, Sun-Hee Lee, Jung Cheol Park, DaeSung Kim, Bum Sung Lee, Seong Je Park
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Patent number: 11469382Abstract: A metal compound including a first ligand LA having the Formula: is disclosed. The metal compounds are useful in the emissive layer in organic light emitting devices.Type: GrantFiled: May 30, 2018Date of Patent: October 11, 2022Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Zhiqiang Ji, Alexey Borisovich Dyatkin, Jui-Yi Tsai
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Patent number: 11469377Abstract: To provide a composition having a very low refractive index, an organic photoelectronic element using the composition, and simple methods for producing such a composition and an organic photoelectronic element. A composition comprising a fluorinated polymer, an organic semiconductor material and a dopant.Type: GrantFiled: June 24, 2019Date of Patent: October 11, 2022Assignees: NATIONAL UNIVERSITY CORPORATION YAMAGATA UNIVERSITY, AGC Inc.Inventors: Daisuke Yokoyama, Takefumi Abe, Yasuhiro Kuwana
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Patent number: 11462366Abstract: A solid electrolytic capacitor containing a capacitor element is provided. The capacitor element contains a sintered porous anode body, a dielectric that overlies the anode body, a solid electrolyte that overlies the dielectric, and an external coating that overlies the solid electrolyte and includes conductive polymer particles. The solid electrolyte includes an intrinsically conductive polymer containing repeating thiophene units of a certain formula.Type: GrantFiled: August 9, 2019Date of Patent: October 4, 2022Assignee: KYOCERA AVX Components CorporationInventors: Miloslav Uher, Kiyofumi Aoki, Pavel Kucharczyk
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Patent number: 11456423Abstract: A composition of materials including a first compound having a structure according to Formula IType: GrantFiled: January 19, 2021Date of Patent: September 27, 2022Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Lichang Zeng, Suman Layek, Pierre-Luc T. Boudreault, Zeinab Elshenawy, Gregg Kottas, Alexey Borisovich Dyatkin, Scott Joseph, Vadim Adamovich, Chuanjun Xia, Ting-Chih Wang, Walter Yeager
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Patent number: 11456421Abstract: Anthracene derivatives each having a structure including an anthracene skeleton, a phenanthrene skeleton selected from among various phenanthrene skeletons different in bonding site which is bonded to the 9-position of the anthracene skeleton and a group selected from among various aryl groups and so on which is bonded to the 10-position of the anthracene skeleton. Organic EL devices made by using the derivatives exhibit high light emission efficiency and a long life.Type: GrantFiled: September 9, 2019Date of Patent: September 27, 2022Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Masahiro Kawamura, Mitsunori Ito
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Patent number: 11456428Abstract: Disclosed are indolocarbazole polycyclic aromatic derivatives that can be employed in various organic layers of organic electroluminescent devices. The indolocarbazole derivatives have a boron-containing structure. Also disclosed are organic electroluminescent devices including the indolocarbazole derivatives. The organic electroluminescent devices are highly efficient and long lasting and have greatly improved luminous efficiency.Type: GrantFiled: November 19, 2019Date of Patent: September 27, 2022Assignee: SFC CO., LTD.Inventors: SungHoon Joo, Ji-Hwan Kim, Byung-sun Yang, Hyeon Jun Jo, Sungeun Choi, Su-jin Kim
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Patent number: 11456398Abstract: An LED chip package structure and a method of manufacturing the same are provided. The method of manufacturing the LED chip package structure includes providing a phosphor film including a phosphor layer and an outer enclosing layer for enclosing the phosphor layer that includes a plurality of phosphor particles; removing the outer enclosing layer from the phosphor layer for exposing the phosphor layer; and then covering an LED chip with the phosphor layer. The LED chip package structure includes an LED chip and a phosphor layer for covering the LED chip. The phosphor layer includes a plurality of phosphor particles tightly connected with each other, and the phosphor layer has no non-phosphor material. Therefore, the LED chip can be directly covered by the phosphor layer without the outer enclosing layer, and the phosphor particle without the non-phosphor material can directly contact the LED chip.Type: GrantFiled: September 15, 2020Date of Patent: September 27, 2022Assignee: ASTI GLOBAL INC., TAIWANInventor: Chien-Shou Liao
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Patent number: 11447473Abstract: The present disclosure relates to compounds of Formula (I) as useful materials for OLED's. X is C(R)2, O, S or —N(Ph); at least one of A1 and A2 is CN, cyanoaryl, or heteroaryl having at least one nitrogen atom as a ring-constituting atom; and at least one of D1, D2, D3 and D4 is diarylamino.Type: GrantFiled: September 6, 2019Date of Patent: September 20, 2022Assignee: KYULUX, INC.Inventors: Jorge Aguilera-Iparraguirre, Yoshitake Suzuki, Shuo-Hsien Cheng, YuSeok Yang
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Patent number: 11450811Abstract: A condensed cyclic compound and an organic light-emitting device including the same, the condensed cyclic compound being represented by the following Formula 1:Type: GrantFiled: March 19, 2019Date of Patent: September 20, 2022Assignee: Samsung Display Co., Ltd.Inventors: Eunjae Jeong, Dongjun Kim, Youngkook Kim, Jongwoo Kim, Sanghyun Han
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Patent number: 11437582Abstract: Disclosed is an organic electroluminescent device, comprising a substrate and light emitting units formed in sequence on the substrate, characterized in that, each of the light emitting units comprises a first electrode layer (1), a light emitting layer (2) and a second electrode layer (3), the light emitting layer comprises a host material and a dye, the host material is made of materials having both electron transport capability and hole transport capability; at least one material in the host material has a CT excited triplet state energy level T1 greater than its n-? excited triplet state energy level S1, and T1-S1?0.3 eV; or, at least one material in the host material has a CT excited triplet state energy level T1 greater than its n-? excited triplet state energy level S1, and T1-S1?1 eV, with the difference between its n-? excited second triplet state energy level and its CT excited first singlet state energy level being in the range of ?0.1 eV to 0.1 eV.Type: GrantFiled: June 15, 2016Date of Patent: September 6, 2022Assignees: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD., TSINGHUA UNIVERSITYInventors: Lian Duan, Dongdong Zhang, Song Liu, Jing Xie, Fei Zhao
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Patent number: 11437592Abstract: The present invention relates to bi- and oligonuclear metal complexes and to electronic devices, especially organic electroluminescent devices, comprising these metal complexes.Type: GrantFiled: July 20, 2017Date of Patent: September 6, 2022Assignee: MERCK PATENT GMBHInventors: Philipp Stoessel, Christian Ehrenreich
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Patent number: 11434253Abstract: Enantiopure terphenyl presenting two ortho-located chiral axes having the following structural formula (I): their process of synthesis and their use as mono or bidentate ligands for asymmetric organometallic reactions, as organocatalysts, as chiral base and as generator, with metal, of isolable chiral metallic complexes for applications in asymmetric catalysis and others.Type: GrantFiled: December 12, 2018Date of Patent: September 6, 2022Assignees: UNIVERSITE DE STRASBOURG, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Quentin Dherbassy, Joanna Wencel-Delord, Françoise Colobert, Gaspard Hedouin
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Patent number: 11437581Abstract: The present application provides a blue fluorescent material and an OLED display panel, wherein the blue fluorescent material is a tetrahedral structure formed by simultaneously connecting a tert-butyl pyrene and a charge carrier transport unit to a same carbon of cyclohexane; wherein the tert-butyl pyrene increases an external quantum efficiency of the OLED display panel, and the tetrahedral structure increases distance between activated particles and reduces a concentration quenching. The charge carrier transport unit improves a balance of the carrier transfer and alleviates a problem that the current OLED display panel has a low luminous efficiency of the blue light material.Type: GrantFiled: September 25, 2019Date of Patent: September 6, 2022Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Keyan Bai
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Patent number: 11430961Abstract: The object of the present invention is to provide an iridium complex compound emitting red light, a composition comprising the iridium complex compound and a solvent, an organic electroluminescent element which is produced using the compound or the composition and has a long driving life and an excellent electronic durability, and a display device and lighting device using the organic electroluminescent element. The present invention relates to an iridium complex compound solvent having a 2-phenyl quinazoline framework and a specific substituent.Type: GrantFiled: February 9, 2015Date of Patent: August 30, 2022Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Koichi Ishibashi, Kazuhiro Nagayama, Hideji Komatsu, Koichiro Iida
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Patent number: 11424417Abstract: An organic electroluminescence device includes a first electrode, a second electrode on the first electrode, and an emission layer between the first electrode and the second electrode. The emission layer may include a compound including a first phenyl group that is substituted with at least one cyano group and a second phenyl group that is substituted with five substituted or unsubstituted carbazole groups, the second phenyl group being directly bonded to the first phenyl group.Type: GrantFiled: September 11, 2019Date of Patent: August 23, 2022Assignee: Samsung Display Co., Ltd.Inventors: Yoshimasa Fujita, Keigo Hoshi, Yuuki Miyazaki
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Patent number: 11417843Abstract: An organic electroluminescence device of an embodiment includes a first electrode and a second electrode opposite of the first electrode, and at least one organic layer between the first electrode and the second electrode, wherein the at least one organic layer includes an amine compound represented by Formula 1 below.Type: GrantFiled: September 26, 2019Date of Patent: August 16, 2022Assignee: Samsung Display Co., Ltd.Inventor: Takao Sakuma
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Patent number: 11408096Abstract: Described herein is the application of centrifugal spinning to provide a flexible mechanoluminescent material composed of rare earth metal doped fibers. Rare earth metal doped fibers are formed, in one embodiment, by centrifugal spinning.Type: GrantFiled: September 7, 2018Date of Patent: August 9, 2022Assignee: The Board of Regents of the University of Texas SystemInventors: Karen Lozano, Yuanbing Mao, Carlos Hernandez, Misael E. Martinez, Mark Anthony Ruiz, Jorge Ernesto Vidal, Jose Zuniga
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Patent number: 11411188Abstract: An electroluminescent device with an improved luminous efficiency. The device includes a light emitting layer with an arylamine polymer including a structural unit (A) represented by Chemical Formula (1).Type: GrantFiled: December 30, 2019Date of Patent: August 9, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Fumiaki Kato, Masashi Tsuji, Takahiro Fujiyama, Keigo Furuta, Takao Motoyama, Yusaku Konishi
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Patent number: 11404649Abstract: The present invention relates to metal complexes and to electronic devices, especially organic electroluminescent devices, comprising these metal complexes. The metal complex is, for example, represented by a compound formula (1) M(L)n(L?)m, containing a substructure M(L)n of the formula (2), and where M is iridium or platinum.Type: GrantFiled: July 4, 2016Date of Patent: August 2, 2022Assignee: MERCK PATENT GMBHInventors: Philipp Stoessel, Christian Ehrenreich
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Patent number: 11398604Abstract: An organic electronic material containing a charge transport compound having a structural region represented by formula (I) and having a weight average molecular weight greater than 40,000. —Ar—X—Y—Z??(I) In the formula, Ar represents an arylene group or heteroarylene group of 2 to 30 carbon atoms, X represents a linking group, Y represents an aliphatic hydrocarbon group of 1 to 10 carbon atoms, and Z represents a substituted or unsubstituted polymerizable functional group.Type: GrantFiled: October 23, 2017Date of Patent: July 26, 2022Assignee: SHOWA DENKO MATERIALS CO., LTD.Inventors: Kazuyuki Kamo, Naoki Asano, Hiroshi Takaira, Iori Fukushima, Shigeaki Funyuu
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Patent number: 11393988Abstract: The present invention relates to metal complexes and to electronic devices, in particular organic electroluminescent devices, comprising these metal complexes.Type: GrantFiled: January 13, 2015Date of Patent: July 19, 2022Assignee: MERCK PATENT GMBHInventors: Philipp Stoessel, Nils Koenen
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Patent number: 11393990Abstract: Provided is a quantum dot light-emitting device and a display apparatus including the same. The quantum dot light-emitting device comprises: an anode; a cathode; a hole transport layer disposed between the anode and the cathode; a light-emitting layer disposed between the hole transport layer and the cathode, the light-emitting layer including a quantum dot having a core-shell structure; and a buffer layer disposed between the hole transport layer and the light-emitting layer, wherein the buffer layer contains an organic compound or derivatives thereof. The external quantum efficiency and device stability are improved. an aromatic hydrocarbon compound or derivatives thereof having a functional group selected from the group consisting of a hydroxyl group (—OH), a carboxyl group (—COOH), an amino group (—NR, —NH, —NH2, where R is a C1 to C6 monovalent hydrocarbon group or derivatives thereof) and a thiol group (—SH).Type: GrantFiled: August 12, 2019Date of Patent: July 19, 2022Assignee: LG DISPLAY CO., LTD.Inventors: Jaehyun Park, Somang Kim, Kyunam Kim
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Patent number: 11380853Abstract: Disclosed is an organic light emitting diode including a first electrode; a second electrode facing the first electrode; and a first emitting material layer, which includes a first host, a second host and a first dopant and disposed between the first and second electrodes. The first host is represented by Formula 1, the second host may be a triazine derivative, and the first dopant may be a red, green or blue dopant.Type: GrantFiled: December 23, 2019Date of Patent: July 5, 2022Assignees: LG DISPLAY CO., LTD., HEESUNG MATERIAL CO., LTD.Inventors: Hye-Seung Kang, Do-Han Kim, Woo-Sam Kim, Dong-Jun Kim, Hyo-Kyun Ham, Young-Seok No
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Patent number: 11377458Abstract: An organometallic compound represented by Formula 1: M(L1)n1(L2)n2(L3)n3??Formula 1 wherein in Formula 1, M, L1, L2, L3, n1, n2, and n3 are the same as defined in the specification.Type: GrantFiled: October 16, 2018Date of Patent: July 5, 2022Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.Inventors: Juhyun Kim, Wook Kim, Youngchun Kwon, Sangmo Kim, Changho Noh, Minsik Min, Sangho Park, Hyejin Bae, Wonseok Oh, Hasup Lee, Yongsik Jung, Younsuk Choi
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Patent number: 11380855Abstract: Novel iridium complexes containing phenylpyridine and pyridyl aza-benzo fused ligands are described. These complexes are useful as light emitters when incorporated into OLEDs.Type: GrantFiled: October 21, 2019Date of Patent: July 5, 2022Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Scott Beers, Chuanjun Xia, Harvey Wendt, Suman Layek
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Patent number: 11374180Abstract: Compounds are provided that comprise a ligand having a 5-substituted 2-phenylquinoline. In particular, the 2-phenylquinoline may be substituted with a cycloalkyl containing group at the 5-position. These compounds may be used in organic light emitting devices, in particular as red emitters in the emissive layer of such devices, to provide devices having improved properties.Type: GrantFiled: April 29, 2020Date of Patent: June 28, 2022Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Chuanjun Xia, Bin Ma, David Zenan Li, Bert Alleyne, Alan Deangelis, James Fiordeliso, Vadim Adamovich
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Patent number: 11367835Abstract: The present invention provides a quantum dot light emitting diode comprising i) an emitting layer of at least one semiconductor nanoparticle made from semiconductor materials selected from the group consisting of Group II-VI compounds, Group II-V compounds, Group III-VI compounds, Group III-V compounds, Group IV-VI compounds, Group I-III-VI compounds, Group II-IV-VI compounds, Group II-IV-V compounds, or any combination thereof; and ii) a polymer for hole injection or hole transport layer, comprising one or more triaryl aminium radical cations having the structure (S1).Type: GrantFiled: June 26, 2017Date of Patent: June 21, 2022Assignees: Dow Global Technologies LLC, Rohm and Haas Electronic Materials LLCInventors: Anatoliy N. Sokolov, Brian Goodfellow, Robert David Grigg, Liam P. Spencer, John W. Kramer, David D. Devore, Sukrit Mukhopadhyay, Peter Trefonas, III
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Patent number: 11349083Abstract: The present invention includes novel compounds containing heterocycles and oligomeric phenylene or aza and cyano substituted variants thereof. These compounds may be useful as host materials for phosphorescent electroluminescent devices.Type: GrantFiled: August 8, 2018Date of Patent: May 31, 2022Assignee: Universal Display CorporationInventor: Peter Wolohan
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Patent number: 11349077Abstract: Disclosed is an organic light emitting diode (OLED) display comprising a substrate; an organic light emitting element disposed on the substrate; an encapsulation substrate disposed on the organic light emitting element; and an adhesive layer formed on the substrate, covering the organic light emitting element, and bonding the substrate on which the organic light emitting element is formed with the encapsulation substrate.Type: GrantFiled: October 23, 2019Date of Patent: May 31, 2022Assignee: Samsung Display Co., Ltd.Inventors: Jung-Hyun Son, Hoon Kim
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Patent number: 11349080Abstract: Organic electroluminescent materials and devices are disclosed. The organic electroluminescent materials are novel benzodithiophene or its analogous structure compounds, which can be used as charge transporting materials, hole injection materials, or the like in an electroluminescent device. These novel compounds can offer excellent performance compared with existing materials, for example, to further improve the voltage, efficiency and/or lifetime of the OLEDs.Type: GrantFiled: December 11, 2018Date of Patent: May 31, 2022Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventor: Chuanjun Xia
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Patent number: 11349084Abstract: A charge-transfer salt formed from a material comprising a repeat unit of formula (I) and an n-dopant: wherein BG is a backbone group of the repeat unit; R1 is a ionic substituent comprising at least one cationic or anionic group; n is at least 1; R2 is a non-ionic substituent; and m is 0 or a positive integer; the material further comprising a counterion balancing the charge of the cationic or anionic group.Type: GrantFiled: December 16, 2016Date of Patent: May 31, 2022Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Thomas Kugler, Sheena Zuberi, Florence Bourcet
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Patent number: 11345686Abstract: Provided are: an aromatic amine derivative including a substituent A and a substituent B each represented by the formula (1) or (2) and having an arylene group bound to a carbazole structure, in which the substituent A and the substituent B include groups different from each other in the position at which the arylene group is bonded to the carbazole structure, and the substituent A and the substituent B are bonded to the same nitrogen atom or different nitrogen atoms in the molecule; an organic electroluminescent device including an organic thin-film layer formed of one or more layers including at least a light emitting layer, the organic thin-film layer being interposed between a cathode and a anode, in which at least one layer of the organic thin-film layer contains the aromatic amine derivative, and the molecules are rarely crystallized, the yield upon production of the organic electroluminescent device is improved, the driving voltage for the organic electroluminescent device is low, and the lifetime of tType: GrantFiled: February 14, 2019Date of Patent: May 31, 2022Assignee: IDEMITSU KOSAN CO., LTD.Inventor: Tomoki Kato
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Patent number: 11339134Abstract: A composition which is useful for production of a light emitting device excellent in light emission efficiency is provided. In particular, provided is a composition containing a compound represented by formula (1) and a phosphorescent compound, wherein R1 and R2 each independently represent a substituent, n1 represents an integer of 1 to 14, and Ar1 represents an arylene group or a divalent heterocyclic group, and at least one of one or more groups Ar1 is a group represented by the formula (1-A), wherein the variable groups R1A to R8A, R91A, and R92A are as defined in the specification.Type: GrantFiled: August 25, 2016Date of Patent: May 24, 2022Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Toshiaki Sasada, Takashi Kuragano, Yoshiaki Tsubata, Makoto Anryu, Takakazu Saito
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Patent number: 11339182Abstract: A compound of Formula (LA)n-M-(LC)m, wherein the ligand LA is of Formula I, and the ligand LC is selected from Formula I that is different than ligand LA, a monoanionic bidentate ligand, or a monoanionic monodentate ligand. M is a metal; and n is 1 or 2, and m is 0, 1 or 2. Ring A is a 5-membered or 6-membered heteroaryl ring, which is bonded to Ring B; Z is selected from O or S; Z1 is selected from a carbene C or N; and Z2 is selected from C or N. Moreover, two adjacent ring carbons of Ring B will form a group of formula D, wherein * represents the point of attachment to the two adjacent ring carbons, Formula D, wherein X is selected from NRN, O, S, or Se; and RN is selected from the group consisting of hydrogen, deuterium, alkyl, cycloalkyl, heteroalkyl, aryl, heteroaryl, and combinations thereof; and Y1, Y2, Y3, and Y4 are independently CRY1, CRY2, CRY3, and CRY4, respectively, or N, and Ring D has no more than two nitrogen ring atoms.Type: GrantFiled: April 26, 2019Date of Patent: May 24, 2022Assignee: Universal Display CorporationInventors: Jui-Yi Tsai, Alexey Borisovich Dyatkin, Zhiqiang Ji
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Patent number: 11342387Abstract: Provided is an organic light-emitting display apparatus. The organic light-emitting display apparatus includes a first substrate; an organic light-emitting device disposed on the first substrate; and a thin film comprising at least one perovskite compound represented by Formula 1 disposed on the organic light-emitting device. T the thin film is positioned in a traveling direction of light emitted from the organic light-emitting device: [A][B1nB2(1-n)][X]3??<Formula 1> A is at least one monovalent organic-cation, at least one monovalent inorganic-cation, or a combination thereof. B1 and B2 are each independently at least one divalent inorganic-cation. n is a real number satisfying 0<n?1. X is at least one monovalent anion.Type: GrantFiled: March 21, 2017Date of Patent: May 24, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dongchan Kim, Byoungduk Lee, Yoonhyeung Cho
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Patent number: 11335859Abstract: The present disclosure relates to a compound of Chemical Formula 1, a coating composition including the same, and an organic light emitting device including the same.Type: GrantFiled: June 20, 2018Date of Patent: May 17, 2022Inventors: Yongwook Kim, Jaechol Lee, Jaesoon Bae, Daeho Kim, Seokhee Yoon, Sungkyoung Kang, Kwanghyun Kim
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Patent number: 11335858Abstract: Provided are an organic EL device material capable of reducing the driving voltage of an organic EL device and increasing the lifetime of the device as compared with a conventional organic EL device material, specifically an aromatic amine derivative represented by N(Ara) (Arb) (Arc), and an organic EL device using the material. [Ara is represented by the formula (II). (In the formula (II): La represents a single bond or an arylene group; R1 to R4 each represent an alkyl group, an aryl group, or the like, and R3's or R4's, or R3 and R4 may be bonded to each other to form a ring; and o represents 0 to 3 and p represents 0 to 4.) Arb is represented by the formula (III).Type: GrantFiled: May 28, 2019Date of Patent: May 17, 2022Assignee: IDEMITSU KOSAN CO., LTD.Inventor: Tomoki Kato
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Patent number: 11335747Abstract: A display device includes a bank including an opening exposing a surface of a base. The bank further includes side surfaces adjacent to an upper surface. The side surfaces slope downward from the upper surface toward an opening in an organic film pattern. A plurality of fine holes is formed on the upper surface and the side surfaces, the bank may also include a plurality of inner holes.Type: GrantFiled: July 1, 2020Date of Patent: May 17, 2022Assignee: Samsung Display Co., Ltd.Inventors: Myung Hwan Kim, Suk Hoon Kang, Min Jae Kim, Hee Ra Kim, Beom Soo Shin, Hong Yeon Lee, Baek Kyun Jeon