The Five-membered Hetero Ring Shares Ring Carbons With Two Benzene Rings (i.e., Carbazoles) Patents (Class 548/440)
  • Publication number: 20150084016
    Abstract: An organic electroluminescent element including a luminescent compound represented by the following formula (in which R1 to R14 each independently represent a hydrogen atom, a deuterium atom, an alkyl group, an aryl group, a heteroaryl group, a fluorine atom, a cyano group, an amino group, an alkoxy group, an aryloxy group, a thio group, or a silyl group, and 8 to 13 groups out of R1 to R14 each represent a hydrogen atom or a deuterium atom.) in a light emitting layer has high durability and excellent chromaticity.
    Type: Application
    Filed: October 5, 2012
    Publication date: March 26, 2015
    Applicant: UDC IRELAND LIMITED
    Inventors: Toru Watanabe, Yuki Hirai, Tianhua Ouyang, Koji Takaku, Wataru Sotoyama, Tetsu Kitamura, Yasunori Yonekuta
  • Patent number: 8986857
    Abstract: Provided is a novel compound which can be used for a transport layer or as a host material or a light-emitting material in a light-emitting element and with which a high-performance light-emitting element can be manufactured. A dibenzo[c,g]carbazole compound in which an aryl group having 14 to 30 carbon atoms and including at least anthracene is bonded to nitrogen of a dibenzo[c,g]carbazole derivative is synthesized. By use of the dibenzo[c,g]carbazole compound, a light-emitting element having very good characteristics can be obtained.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: March 24, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroki Suzuki, Satoshi Seo, Sachiko Kawakami, Tsunenori Suzuki
  • Patent number: 8987715
    Abstract: An organic electroluminescence device (1) includes: an anode (3); a cathode (4); and an emitting layer (5) provided between the anode (3) and the cathode (4). The emitting layer contains a first host, a second host and a phosphorescent dopant. A triplet energy of each of the first host and the second host is 2.8 eV or more. An ionization potential of the first host is 5.5 eV or less. An affinity Af1 of the first host is smaller than an affinity Af2 of the second host.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: March 24, 2015
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kazuki Nishimura, Hitoshi Kuma, Chishio Hosokawa, Hideaki Nagashima, Masaki Numata
  • Patent number: 8986858
    Abstract: Disclosed is an organic electroluminescent device (organic EL device) that is improved in luminous efficiency, sufficiently secures driving stability, and has a simple configuration. This organic EL device comprises organic layers between an anode and a cathode piled one upon another on a substrate and at least one organic layer selected from a light-emitting layer, a hole-transporting layer, an electron-transporting layer, and a hole-blocking layer contains a carbazole compound represented by the following formula (1). In the case where the light-emitting layer of the organic electroluminescent device contains a phosphorescent dopant and a host material, it is the carbazole compound that is contained as the host material.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: March 24, 2015
    Assignee: Nippon Steel & Sumikin Chemical Co., Ltd.
    Inventors: Masashi Tada, Junya Ogawa, Takahiro Kai, Megumi Matsumoto, Yasuhisa Tsutsumi
  • Patent number: 8987472
    Abstract: The present invention relates to a novel triscarbazole compound comprising cyclo- or polycycloalkyl or aralkyl substituent, which can be represented by Formula (I). wherein; RA is a substituent comprising a substituted or unsubstituted cyclo- or polycycloalkyl group wherein the ring system comprises three to twenty carbon atoms or an aralkyl group having an overall number of nine to twenty carbon atoms, RB, RC, RD and RE are any substituent other than a substituted or unsubstituted aniline, and m, o, p and q are same or different at each occurrence and represent an integer from 0 to 4.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: March 24, 2015
    Assignee: Solvay SA
    Inventor: Jonathan Maunoury
  • Publication number: 20150073030
    Abstract: The T cells specific to human collagen type II, one of the possible autoantigens, have a crucial role in the development of rheumatoid arthritis in the context of HLA-DR4. The protein-protein interactions between the T cell receptor (TCR) and the type II collagen linked to the allele MHC of class II HLA-DR4 may thus represent the target for the development of new drugs against rheumatoid arthritis. Using computational virtual screening techniques, families of pharmacologically active molecules have been identified that interfere with the TCR/collagen ll-MHCII interaction. The compounds identified here open up new possibilities in the treatment of rheumatoid arthritis.
    Type: Application
    Filed: April 2, 2013
    Publication date: March 12, 2015
    Inventors: Maria Cristina De Rosa, Francesco Ria, Bruno Giardina, Gianfranco Ferraccioli, Davide Pirolli, Chiara Nicolo'
  • Publication number: 20150069368
    Abstract: A compound for an organic photoelectric device, the compound being represented by the following Chemical Formula (“CF”) 1:
    Type: Application
    Filed: October 20, 2014
    Publication date: March 12, 2015
    Inventors: Hyung-Sun KIM, Eun-Sun YU, Young-Hoon KIM, Soo-Hyun MIN, Ho-Jae LEE, Eui-Su KANG, Mi-Young CHAE
  • Publication number: 20150069342
    Abstract: A condensed-cyclic compound represented by Formula 1 and an organic light-emitting device including the condensed-cyclic compound. wherein R1 to R10 are defined as in the specification.
    Type: Application
    Filed: May 1, 2014
    Publication date: March 12, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Eun-Young Lee, Seok-Hwan Hwang, Young-Kook Kim, Jun-Ha Park, Hye-Jin Jung, Jin-O Lim, Jong-Woo Kim, Sang-Hyun Han, Kwang-Hyun Kim, Eun-Jae Jeong, Soo-Yon Kim
  • Publication number: 20150065730
    Abstract: The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.
    Type: Application
    Filed: January 21, 2013
    Publication date: March 5, 2015
    Inventors: Elvira Montenegro, Amir H. Parham, Philipp Stoessel, Teresa Mujica-Fernaud, Frank Voges, Arne Buesing
  • Publication number: 20150057270
    Abstract: The invention provides prodrugs of DNA-reactive analogs of duocarmycin and CC-1065 anticancer agents, wherein a cyclic prodrug form, such as carbamate, thionocarbamate, or carbamimidate, can be hydrolyzed by the patient in vivo to yield a respective bioactive agent comprising a DNA-alkylating moiety and a binding/targeting moiety. The DNA-reactive moiety is a ?-spiro-cyclohexenone fused to a heterocyclyl group which can be produced by endogenous hydrolysis of a cyclic carbamate prodrug of the invention. The cyclic carbamate prodrug produces no residual byproduct during activation in vivo. Methods of synthesis and biological methods and data are also provided.
    Type: Application
    Filed: March 26, 2013
    Publication date: February 26, 2015
    Inventor: Dale L. Boger
  • Patent number: 8962157
    Abstract: Compounds of formula I may be used in optoelectronic devices wherein R1, R2 and R4 are, independently at each occurrence, H, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; R3 is H or a is, independently at each occurrence, 1 or 2; b is, independently at each occurrence, an integer ranging from 0-3; c is, independently at each occurrence, an integer ranging from 0-4; Ar is independently at each occurrence, H, or heteroaryl; and at least two of Ar are heteroaryl.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: February 24, 2015
    Assignee: General Electric Company
    Inventors: Qing Ye, Jie Liu, Kelly Scott Chichak, Yangang Liang
  • Publication number: 20150048332
    Abstract: An amine-based compound is represented by Formula 1 below: wherein Z11 to Z24, R1 to R4 and Ar1 are as indicated in the specification. An organic light-emitting diode includes the amine-based compound.
    Type: Application
    Filed: July 9, 2014
    Publication date: February 19, 2015
    Inventors: Dong-Hyun KIM, Mi-Kyung KIM, Se-Hun KIM, Hwan-Hee CHO, Sam-Il KHO, Hyoung-Kun KIM, Chang-Woong CHU
  • Patent number: 8957224
    Abstract: A specific type of carbazole photoinitiator is capable of providing radiation curable compositions that are curable by UV LEDs and do not exhibit an unstable yellowing behavior in an image upon storage like ITX.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: February 17, 2015
    Assignee: Agfa Graphics NV
    Inventor: Johan Loccufier
  • Patent number: 8951647
    Abstract: The present invention relates to organic electroluminescent devices which comprise fluorene derivatives and spirobifluorene derivatives as matrix material for phosphorescent emitters.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: February 10, 2015
    Assignee: Merck Patent GmbH
    Inventors: Amir Hossain Parham, Joachim Kaiser, Anja Gerhard, Jonas Valentin Kroeber
  • Patent number: 8945724
    Abstract: A novel nitrogen-containing heterocyclic derivative having a specific structure. An organic electroluminescence device comprises an organic thin-film layer which is disposed between a cathode and an anode and comprises one or more layers having a light emitting layer. At least one layer of the organic thin-film layer comprises the nitrogen-containing heterocyclic derivative. The organic electroluminescence device exhibits a high luminance and a high luminous efficiency even at a low driving voltage.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: February 3, 2015
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Hiroshi Yamamoto, Takashi Arakane
  • Patent number: 8945728
    Abstract: The invention provides an organic compound incorporating a specific structure into a pyridine skeleton or a 1,3,5-triazine skeleton and adapting the molecular weight to a specific range, a composition comprising the organic compound and a solvent, organic electroluminescent element comprising a layer that is formed by using the composition, and the uses thereof.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: February 3, 2015
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Koichi Ishibashi, Hideki Gorohmaru, Wataru Shimizu, Tomomi Okamoto
  • Patent number: 8946984
    Abstract: Disclosed are electroluminescent devices that comprise organic layers that contain dibenzofuran compounds. The compounds are suitable components of, for example, blue-emitting, durable, organo-electroluminescent layers. The electroluminescent devices may be employed for full color display panels in, for example, mobile phones, televisions and personal computer screens.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: February 3, 2015
    Assignee: BASF SE
    Inventors: Junichi Tanabe, Hidetaka Oka, Hiroshi Yamamoto
  • Patent number: 8940414
    Abstract: A biscarbazole derivative of the invention is represented by a formula (1A) or (1B) below. In the formula (1A) or (1B): A1 represents a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; A2 represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; X1 and X2 each are a linking group; Y1 to Y4 each represent a substituent; p and q represent an integer of 1 to 4; and r and s represent an integer of 1 to 3.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: January 27, 2015
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Tetsuya Inoue, Mitsunori Ito, Kei Yoshida, Kumiko Hibino, Kazuki Nishimura, Toshinari Ogiwara, Kiyoshi Ikeda
  • Patent number: 8940412
    Abstract: An organic electroluminescence device and a material for producing the organic electroluminescence device. The organic electroluminescence device includes an organic thin film layer between a cathode and an anode, the organic thin film layer including one or more layers, in which the organic thin film layer includes one or more light emitting layers and at least one of the light emitting layers includes a phosphorescent material and a host material. The host material has an essential structure in which a naphthalene ring is bonded to a fluorene skeleton, dibenzofuran skeleton, or dibenzothiophene skeleton. The organic electroluminescence device is a phosphorescent device having high efficiency and long lifetime.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: January 27, 2015
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Yoriyuki Takashima, Toshihiro Iwakuma, Toshinari Ogiwara, Chishio Hosokawa, Mitsunori Ito
  • Publication number: 20150021576
    Abstract: A material for an electroluminescence device and an electroluminescence device including the same, the material being represented by following Formula 1:
    Type: Application
    Filed: July 16, 2014
    Publication date: January 22, 2015
    Inventor: Hiroaki ITOI
  • Publication number: 20150021555
    Abstract: Luminescent materials including donor-acceptor compounds with a high triplet energy heteropolyaromatic system, namely, dibenzofuran, dibenzothiophene and dibenzoselenophene with one or multiple nitrogens in the ring as the electron acceptor for use as emitters in organic light emitting diodes is disclosed.
    Type: Application
    Filed: July 16, 2013
    Publication date: January 22, 2015
    Inventors: Raymond Kwong, Chuanjun Xia, Scott Joseph, Siu Tung Lam, Chi Hang Lee
  • Publication number: 20150014649
    Abstract: The present invention relates to novel organic compounds containing a triphenylene and a carbazole. The compounds are useful for organic light-emitting diodes. The compounds are also useful for charge-transport and charge-blocking layers, and as hosts in the light-emissive layer for organic light emitting devices (OLEDs).
    Type: Application
    Filed: February 6, 2014
    Publication date: January 15, 2015
    Inventors: Bin MA, Walter YEAGER, Edward BARRON, Kwang-Ohk CHEON, Lichang ZENG, Chuanjun XIA
  • Patent number: 8932732
    Abstract: The present invention relates to organic electroluminescent devices, in particular blue-emitting devices, in which compounds of the formulae (1) to (4) are used as host material or dopant in the emitting layer and/or as hole-transport material and/or as electron-transport material.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: January 13, 2015
    Assignee: Merck Patent GmbH
    Inventors: Arne Buesing, Philipp Stoessel, Holger Heil
  • Patent number: 8932734
    Abstract: Compounds comprising a 3,9-linked oligocarbazole moiety and a dibenzothiophene, dibenzofuran, dibenzoselenophene, aza-dibenzothiophene, aza-dibenzofuran, or aza-dibenzoselenophene are provided. The 3,9-linked oligocarbazole and dibenzo or aza-dibenzo moiety are separated by an aromatic spacer. The compounds may be used as non-emissive materials for phosphorescent OLEDs to provide devise having improved performance.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: January 13, 2015
    Assignee: Universal Display Corporation
    Inventor: Alexey Dyatkin
  • Patent number: 8927117
    Abstract: The present invention relates to a compound of the formula (1) and (2) The invention further relates to a process to produce the compound. The invention additionally relates and an electronic device containing the compound of the formula (1) or (2). The electronic device can be an organic electroluminescence devices, particularly a blue emitting device, in which compounds are used as host materials or dopants in the emitting layer and/or as hole transport materials and/or as electron transport materials.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: January 6, 2015
    Assignee: Merck Patent GmbH
    Inventors: Arne Buesing, Holger Heil, Philipp Stoessel
  • Patent number: 8927115
    Abstract: An organic electroluminescent device excellent in light emission efficiency and driving voltage, having electrodes composed of an anode and a cathode, a first organic layer arranged in contact with or adjacent to the anode between the electrodes and containing a hole transporting polymer compound and a second organic layer arranged in contact with the first organic layer between the first organic layer and the cathode and containing an electron transporting polymer compound, wherein the hole transporting polymer compound and the electron transporting polymer compound are regulated by specific parameters, at least one of the first organic layer and the second organic layer contains a light emitting material regulated by specific parameters, and light of specific color is emitted from the first organic layer or from the first organic layer or the second organic layer.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: January 6, 2015
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Takeshi Yamada
  • Patent number: 8927114
    Abstract: A layer included in an electroluminescent element is required to be thickened to optimize light extraction efficiency of the electroluminescent element and to prevent short-circuit between electrodes. However, in a conventional element material, desired light extraction efficiency cannot be accomplished since drive voltage rises or power consumption is increased as the element material is thickened. A composite is formed by mixing a conjugated molecule having low ionization potential and a substance having an electron-accepting property to the conjugated molecule. A composite layer included in an element is formed using the composite as an element material. The composite layer is arranged between a first electrode and a light emitting layer or between a second electrode and a light emitting layer. The composite layer has high conductivity; therefore, drive voltage does not rise even if a film thickness is increased.
    Type: Grant
    Filed: November 24, 2005
    Date of Patent: January 6, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Ryoji Nomura, Satoshi Seo, Hiroko Abe, Takako Takasu, Hideko Inoue, Hisao Ikeda, Daisuke Kumaki, Junichiro Sakata
  • Patent number: 8927121
    Abstract: Disclosed herein are compounds represented by Formula 1, wherein R1, Ar1, X, Ar2, Ar3, and Het are described herein. Compositions and light-emitting devices related thereto are also disclosed.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: January 6, 2015
    Assignee: Nitto Denko Corporation
    Inventors: Shijun Zheng, Jensen Cayas, Sheng Li, Amane Mochizuki, Hyun Sik Chae, Brett T. Harding
  • Publication number: 20150005509
    Abstract: An anthracene derivative represented by a general formula (1) and an organic compound represented by a general formula (8) are provided. Further, by use of the anthracene derivative represented by the general formula (1), a light-emitting element with high emission efficiency can be obtained. Furthermore, by use of the anthracene derivative represented by the general formula (1), a light-emitting element that emits blue light with high color purity can be obtained.
    Type: Application
    Filed: September 10, 2014
    Publication date: January 1, 2015
    Inventors: Sachiko KAWAKAMI, Nobuharu OHSAWA
  • Publication number: 20150004731
    Abstract: Objects of the present invention are to provide novel anthracene derivatives and novel organic compounds; a light-emitting element that has high emission efficiency; a light-emitting element that is capable of emitting blue light with high luminous efficiency; a light-emitting element that is capable of operation for a long time; and a light-emitting device and an electronic device that have lower power consumption. An anthracene derivative represented by a general formula (1) and an organic compound represented by a general formula (17) are provided. A light-emitting element that has high emission efficiency can be obtained by use of the anthracene derivative represented by the general formula (1). Further, a light-emitting element that has a long life can be obtained by use of the anthracene derivative represented by the general formula (1).
    Type: Application
    Filed: July 10, 2014
    Publication date: January 1, 2015
    Inventors: Sachiko KAWAKAMI, Nobuharu OHSAWA, Satoshi SEO, Hiroki SUZUKI
  • Patent number: 8920946
    Abstract: Embodiments of the present invention are directed to a compound represented by Formula 1 below and an organic light-emitting device including the compound.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: December 30, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung-Sub Lee, Seung-Gak Yang
  • Publication number: 20140374720
    Abstract: An aromatic amine derivative represented by formula (1): wherein L1, L2, Ar1, Ar2, R1, R2, a, b, and Q are as defined in the specification. An organic electroluminescence device having at least one organic thin film layer which includes the aromatic amine derivative has high emission efficiency and long lifetime.
    Type: Application
    Filed: September 11, 2012
    Publication date: December 25, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoki Kato, Takahiro Fujiyama
  • Patent number: 8911886
    Abstract: A material for electroluminescent devices which comprises a compound in which a heterocyclic group having nitrogen is bonded to carbazolyl group and an organic electroluminescent device having at least one organic thin film layer which is sandwiched between the cathode and the anode and contains the above material in at least one layer, are provided. The material can provide organic electroluminescent devices emitting bluish light with a high purity of color. The organic electroluminescence device uses the material.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: December 16, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Toshihiro Iwakuma, Chishio Hosokawa, Hidetsugu Ikeda, Seiji Tomita, Takashi Arakane
  • Publication number: 20140353553
    Abstract: A novel compound represented by general formula (1), a carrier system including a carrier having the novel compound fixed thereon, and a photoelectric conversion device having the carrier system. In formula (1), Z is a C1-C50 conjugated group; R1 is a C6-C20 aromatic hydrocarbon group, a C7-C20 aromatic hydrocarbon group substituted by an aliphatic hydrocarbon group, or a C1-C20 aliphatic hydrocarbon group, each substituted by carboxyl, cyano, amino, amide, or nitro, the aliphatic hydrocarbon group being optionally interrupted by —O—, etc.; R2 is hydrogen or an optionally substituted C1-C20 hydrocarbon group; R30, R31, R32, R33, R40, R41, R42, R43, and R44 are each hydrogen or optionally substituted hydrocarbon group, and adjacent two of them may be connected to form a ring; R5 is hydrogen or cyano; and R11 is represented by formula (11-1) or (11-2), wherein n, ring A, and the like are as defined in the description.
    Type: Application
    Filed: February 27, 2013
    Publication date: December 4, 2014
    Applicant: ADEKA Corporation
    Inventors: Hiroyuki Osada, Yohei Aoyama
  • Patent number: 8900728
    Abstract: It is an object of the present invention to provide a material which is excellent in a hole injecting property and a hole transporting property, and to provide a light emitting element and a light emitting device using a material which is excellent in a hole injecting property and a hole transporting property. The present invention provides a carbazole derivative represented by a general formula (1). The carbazole derivative according to the present invention is excellent in the hole injecting property. By using the carbazole derivative according to the present invention as a hole injecting material for a hole injecting layer of a light emitting element, a driving voltage can be reduced. In addition, a lower driving voltage, improvement of the luminous efficiency, a longer life time, and higher reliability can be realized by applying the material to a light emitting element or a light emitting device.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: December 2, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Harue Nakashima, Sachiko Kawakami, Daisuke Kumaki
  • Patent number: 8895157
    Abstract: Optionally substituted bispyridinylbenzene compounds useful in light-emitting devices include, but are not limited to, 1,3-bis(5-(9H-carbazol-9-yl)pyridin-3-yl)benzene and 9,9?-(5,5?-(5-methyl-1,3-phenylene)bis(pyridine-5,3-diyl))bis(9H-carbazole).
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: November 25, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Shijun Zheng, Rebecca Romero, David T. Sisk
  • Patent number: 8889271
    Abstract: Disclosed are a novel-structural compound including a 5-membered heterocycle, an organic electronic device using the same, and a terminal thereof.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: November 18, 2014
    Assignees: Duksan High Metal Co., Ltd., Samsung Mobile Display Co., Ltd.
    Inventors: Junghwan Park, Daesung Kim, Jungcheol Park, Kiwon Kim, Jinuk Ju, Jangyeol Baek, Soungyun Mun, Yongwook Park, Hwasoon Jung, Wonsam Kim, Jihun Byun, Sungjin Park, Eunkyung Kim, Daehyuk Choi, Dongha Kim, Hansung Yu, Kwanhee Lee, Taeshick Kim, Daeyup Shin, Mikyung Kim, Dongheon Kim
  • Publication number: 20140332777
    Abstract: Provided are a phosphorescent host material and an organic light-emitting device including the same. An emission material layer according to the inventive concept includes the phosphorescent host material and a phosphorescent dopant material. The phosphorescent host material has higher triplet energy than the phosphorescent dopant material. Thus, the light-emitting efficiency of the organic light-emitting device may be improved.
    Type: Application
    Filed: April 23, 2014
    Publication date: November 13, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Nam Sung CHO, Joo Hyun HWANG, Jeong Ik LEE
  • Publication number: 20140336392
    Abstract: The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device containing the same. Using the organic electroluminescent compounds of the present invention, it is possible to manufacture an OLED device with a long operating lifespan and high luminous efficiency. In addition, the compounds can improve the power efficiency of the device and reduce overall power consumption.
    Type: Application
    Filed: December 4, 2012
    Publication date: November 13, 2014
    Inventors: Young-Gil Kim, Young-Jun Cho, So-Mi Park, Hyuck-Joo Kwon, Kyung-Joo Lee, Bong-Ok Kim
  • Patent number: 8883398
    Abstract: The present application relates to a photoactive compound including an oxime ester group and a phosphonate group together, and a photosensitive resin composition comprising the same, the compound of the present application having excellent storage stability and high-temperature process characteristics.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: November 11, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Changho Cho, Sunghyun Kim, Han Soo Kim, Sunhwa Kim, Raisa Kharbash, Jongho Park
  • Publication number: 20140330025
    Abstract: A monoamine compound characterized by being represented by the following general formula (1). [In general formula (1), R1 to R3 each independently represent a phenyl group which may have a substituent in at least one of o- and m-positions, in which the substituent may be bonded to each other to form a cyclic structure. R1 to R3 are a group different from each other.
    Type: Application
    Filed: July 17, 2014
    Publication date: November 6, 2014
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Tatsushi BABA, Koichiro IIDA
  • Patent number: 8877355
    Abstract: The present invention provides an organic electroluminescent device exhibiting a long life, a high luminance, and a high efficiency. An organic electroluminescent device comprising on a substrate an anode, a hole transport layer, an organic light-emitting layer, and a cathode, wherein the organic light-emitting layer contains an organic compound having a pyridine ring, a pyrazine ring, or a triazine ring as a partial structure and the hole transport layer contains a monoamine compound represented by the following formula (I): wherein R1 to R9 represent a hydrogen atom, an aryl group, or an alkyl group; R1 to R9 may be the same or different from each other; and R1 to R9 may further have an aryl group or an alkyl group as a substituent in the case where R1 to R9 are an aryl group or an alkyl group.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 4, 2014
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Masayoshi Yabe, Masayo Fugono, Koichiro Iida, Masako Takeuchi, Tomoyuki Ogata
  • Patent number: 8877352
    Abstract: A biscarbazole derivative of the invention is represented by a formula (1A) or (1B) below. In the formula (1A) or (1B): A1 represents a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; A2 represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; X1 and X2 each are a linking group; Y1 to Y4 each represent a substituent; p and q represent an integer of 1 to 4; and r and s represent an integer of 1 to 3.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: November 4, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Tetsuya Inoue, Mitsunori Ito, Kei Yoshida, Kumiko Hibino, Kazuki Nishimura, Toshinari Ogiwara, Kiyoshi Ikeda
  • Patent number: 8871430
    Abstract: The present invention relates to a photoactive compound having a novel structure and a photosensitive resin composition including the same, and the photoactive compound according to the present invention has excellent sensitivity due to efficient absorption to a UV light source by including a nitro group and a phosphonate structure, and has excellent retention rate, mechanical strength, heat resistance, chemical resistance and developing resistance by improving solubility of the photosensitive resin composition by excellent compatibility of the phosphonate structure and a binder resin. Therefore, the photosensitive resin composition according to the present invention is useful to cure a column spacer, an overcoat, a passivation material and the like of a liquid crystal display device, and is useful in view of a high temperature process property.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: October 28, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Changho Cho, Won Jin Chung, Raisa Kharbash, Sunghyun Kim, Dongchang Choi, Sang Chul Lee, Han Soo Kim, Yoon Hee Heo, Sunhwa Kim
  • Publication number: 20140312331
    Abstract: Provided are an organic electroluminescence device having high current efficiency and a long lifetime, and a biscarbazole derivative for realizing the device. The biscarbazole derivative has a specific substituent. The organic EL device has a plurality of organic thin-film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin-film layers contains the biscarbazole derivative.
    Type: Application
    Filed: June 30, 2014
    Publication date: October 23, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tetsuya Inoue, Mitsunori Ito, Tomoki Kato, Kumiko Hibino, Kazuki Nishimura, Takayasu Sado
  • Patent number: 8865323
    Abstract: A biscarbazole derivative of the invention is represented by a formula (1) below. In the formula (1): A1 represents a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; A2 represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; X1 and X2 each are a linking group; Y1 to Y4 each represent a substituent; p and q represent an integer of 1 to 4; and r and s represent an integer of 1 to 3.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: October 21, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Tetsuya Inoue, Mitsunori Ito, Kei Yoshida, Kumiko Hibino, Kazuki Nishimura, Toshinari Ogiwara, Kiyoshi Ikeda
  • Patent number: 8859109
    Abstract: Disclosed is an organic electroluminescent device (organic EL device) that is improved in luminous efficiency, fully secured of driving stability, and of simple structure. The organic EL device comprises a light-emitting layer between an anode and a cathode piled one upon another on a substrate and the light-emitting layer comprises a phosphorescent dopant and a compound containing carbazolyl groups at both ends represented by the following formula (1) as a host material. In formula (1), X is independently CH optionally containing a substituent or N and L is a direct bond, an ethylene group, or an acetylene group.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: October 14, 2014
    Assignee: Nippon Steel & Sumikin Chemical Co., Ltd.
    Inventors: Yuichi Sawada, Takahiro Kai, Masaki Komori, Toshihiro Yamamoto
  • Patent number: 8859113
    Abstract: The present invention relates to novel carbazole derivatives and an organic light-emitting diode device using the same. These carbazole derivatives can simultaneously or singly be used as a hole transporting layer, a host or guest of an emitting layer or an electron transporting layer of an organic light-emitting diode device.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: October 14, 2014
    Assignee: China Petrochemical Development Corporation
    Inventors: Hsian Chan Liu, Min Sheng Chen, Chin Yi Lee
  • Patent number: 8852757
    Abstract: Disclosed is an organic electroluminescent device having high external quantum efficiency and long emission life. Also disclosed are an illuminating device and a display, each comprising such an organic electroluminescent device. The organic electroluminescent device is characterized by comprising at least an anode and a cathode on a supporting substrate, while having at least one light-emitting layer between the anode and the cathode. The organic electroluminescent device is also characterized by containing a polymer which at least partially contains a compound A having a partial structure represented by the general formula (a) below and a reactive group, and is obtained by polymerizing the compound A through the reactive group. (In the formula, Ar1 and Ar2 respectively represent an aromatic ring.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: October 7, 2014
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Rie Katakura, Hiroshi Kita, Tatsuo Tanaka, Hideo Taka
  • Patent number: RE45216
    Abstract: An organic electroluminescent element including at least an emission layer sandwiched between an anode and a cathode, wherein the emission layer comprises at least a compound represented by Formula (A),
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: October 28, 2014
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Tatsuo Tanaka, Hideo Taka