The Five-membered Hetero Ring Shares Ring Carbons With Two Benzene Rings (i.e., Carbazoles) Patents (Class 548/440)
  • Publication number: 20140155624
    Abstract: A hole transport material for the organic electroluminescence device, the hole transport material being represented by the following Formula 1,
    Type: Application
    Filed: January 15, 2014
    Publication date: June 5, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventor: Hiroaki ITOI
  • Patent number: 8741446
    Abstract: Organic compounds and organic electroluminescent devices employing the same are provided.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: June 3, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Jin-Sheng Lin, Meng-Ting Lee, Heh-Lung Huang
  • Patent number: 8741450
    Abstract: A material for organic electroluminescence devices comprising a compound in which a heterocyclic group having nitrogen is bonded to an arylcarbazolyl group or a carbazolylalkylene group and an organic electroluminescence device comprising an anode, a cathode and an organic thin film layer comprising at least one layer and disposed between the anode and the cathode, wherein at least one layer in the organic thin film layer comprises the material for organic electroluminescence devices described above. The material can provide an organic electroluminescence device emitting bluish light with a high purity of color. The organic electroluminescence device uses the material.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: June 3, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Toshihiro Iwakuma, Hiroshi Yamamoto, Yoshio Hironaka, Hidetsugu Ikeda, Chishio Hosokawa, Seiji Tomita, Takashi Arakane
  • Patent number: 8743031
    Abstract: An aspect of the present invention provides the dibenzothiophene compound expressed by General Formula 1 in Claim 1. In General Formula 1, R1 is either a hydrogen atom or an unsubstituted phenyl group, and Ar1 is any of phenanthrenyl, fluorenyl, triphenylenyl, naphthyl, chrysenyl, and pyrenyl groups. The options for the Ar1 substituents, namely the phenanthrenyl, fluorenyl, triphenylenyl, naphthyl, chrysenyl, and pyrenyl groups, may contain at least one of an alkyl group having one to four carbon atoms and an aryl group as a substituent.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: June 3, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masashi Hashimoto, Jun Kamatani, Kenichi Ikari, Akihito Saitoh
  • Publication number: 20140145175
    Abstract: An object is to provide a novel carbazole derivative that has an excellent carrier-transport property and can be suitably used for a transport layer or as a host material of a light-emitting element. Another object is to provide an organic semiconductor material and a light-emitting element material each using the carbazole derivative. As the carbazole derivative that can achieve the above objects, a carbazole derivative in which a carbazolyl group whose either 2- or 3-position of carbazole is substituted by the 4-position of a dibenzothiophene skeleton or a dibenzofuran skeleton is bonded to aromatic hydrocarbon that has 14 to 70 carbon atoms and includes a condensed tricyclic ring, a condensed tetracyclic ring, a condensed pentacyclic ring, a condensed hexacyclic ring, or a condensed heptacyclic ring has been able to be synthesized.
    Type: Application
    Filed: February 3, 2014
    Publication date: May 29, 2014
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroki Suzuki, Kyoko Takeda, Sachiko Kawakami, Tsunenori Suzuki, Satoshi Seo, Nobuharu Ohsawa
  • Publication number: 20140138652
    Abstract: A blue phosphorescence compound and an organic light emitting diode using the same are disclosed. The blue phosphorescence compound is represented by Chemical Formula 1 below: wherein ‘A’ and ‘B’ are symmetrically or asymmetrically substituted at positions of Nos. 2 and 7 or Nos. 3 and 6 of dibenzofuran core and are independently formed of an aromatic cyclic compound or a heterocyclic compound.
    Type: Application
    Filed: October 30, 2013
    Publication date: May 22, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Inbum SONG, Sukyoung BAE
  • Publication number: 20140138669
    Abstract: A delayed fluorescence material comprising a compound represented by the general formula below. At least one of R1 to R8 represent an electron-donating group and the others represent a hydrogen atom; at least one of R9 to R16 represent an electron-withdrawing group and the others represent a hydrogen atom.
    Type: Application
    Filed: July 13, 2012
    Publication date: May 22, 2014
    Applicant: KYUSHU UNIVERSITY NATIONAL UNIVERSITY CORPORATION
    Inventors: Tetsuya Nakagawa, Chihaya Adachi
  • Patent number: 8728631
    Abstract: A dendrimer compound characterized by comprising a core represented by the following formula (1-1), (1-2), (1-3), or (1-4) and at least one kind of dendritic structure selected among dendritic structures represented by the following formulae (3) and (4).
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: May 20, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Makoto Kitano, Yoshiaki Tsubata
  • Publication number: 20140131670
    Abstract: The disclosure provides an organic compound and an organic electroluminescence device employing the same. According to an embodiment of the disclosure, the organic compound has a chemical structure as represented as below: wherein, R are independent and can be hydrogen, halogen, cyano, C1-8 alkyl, C1-8 alkoxy, C5-10 aryl, or C2-8 heteroaryl.
    Type: Application
    Filed: May 8, 2013
    Publication date: May 15, 2014
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventor: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
  • Publication number: 20140131686
    Abstract: To provide a light-emitting element including a novel compound, which is capable of being used for a transport layer, a host material, or a light-emitting material in a light-emitting element. A light-emitting element which includes an EL layer between a pair of electrodes. In an analysis of the EL layer by liquid chromatography mass spectrometry, an ion having a mass/charge ratio (m/z) of 772 is detected, and by collision of an argon gas with the ion at an energy greater than or equal to 30 eV and less than or equal to 100 eV, one or more of an ion having a mass/charge ratio (m/z) of 349 and an ion having a mass/charge ratio (m/z) of 425 is or are detected.
    Type: Application
    Filed: November 12, 2013
    Publication date: May 15, 2014
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Sachiko KAWAKAMI, Kaori OGITA, Nobuharu OHSAWA, Hiromi SEO, Satoshi SEO
  • Patent number: 8722904
    Abstract: A novel anthracene derivative with a large energy gap is provided. An anthracene derivative represented by General Formula (G1) below is provided. In the formula, Ar1 and Ar2 independently represent an aryl group with 6 to 13 carbon atoms in a ring, R1 and R2 independently represent any of hydrogen, an alkyl group with 1 to 4 carbon atoms, or an aryl group with 6 to 13 carbon atoms in a ring, and each of Ar1, Ar2, R1, and R2 may have a substituent and the two substituents may be bonded to each other to form a ring.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: May 13, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Sachiko Kawakami, Tsunenori Suzuki, Nobuharu Ohsawa, Satoko Shitagaki, Satoshi Seo
  • Publication number: 20140117329
    Abstract: An amine-based compound and an organic light-emitting device including the amine-based compound are provided.
    Type: Application
    Filed: August 5, 2013
    Publication date: May 1, 2014
    Inventors: Ji-Youn LEE, Yoon-Hyun KWAK, Bum-Woo PARK, Sun-Young LEE, Jong-Won CHOI, WHA-IL CHOI, So-Yeon KIM
  • Publication number: 20140117331
    Abstract: A heterocyclic compound represented by Formula 1 below, and an organic light-emitting device including the heterocyclic compound: whrerein X1 and R1 to R10 are defined as in the specification.
    Type: Application
    Filed: September 14, 2013
    Publication date: May 1, 2014
    Inventors: So-Yeon Kim, Yoon-Hyun Kwak, Bum-Woo Park, Sun-Young Lee, Jong-Won Choi, Wha-IL Choi, Ji-Youn Lee
  • Patent number: 8704215
    Abstract: A novel stilbene derivative is provided with motivation of providing a blue emissive material showing excellent color purity. The use of the stilbene derivative of the present invention allows the fabrication of a blue-emissive light-emitting element with excellent color purity. The invention also includes an electronic device equipped with a display portion in which the stilbene derivative is employed. The stilbene derivative of the present invention is represented by formula (1), in which Ar1 and Ar2 may form a 5-membered ring by being directly bonded to each other. In formula (1), A11 represents any one of substituents represented by general formulas (1-1) to (1-3). The variables shown in formula (1) and (1-1) to (1-3) are as defined in the specification.
    Type: Grant
    Filed: March 10, 2012
    Date of Patent: April 22, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masakazu Egawa, Harue Osaka, Sachiko Kawakami, Nobuharu Ohsawa, Satoshi Seo, Ryoji Nomura
  • Patent number: 8703300
    Abstract: Disclosed is a long-life organic electroluminescent element which can be driven at low voltage. Also disclosed are a display and illuminator using the same. Specifically disclosed is an organic electroluminescent element comprising on a substrate, an anode, a cathode and an organic compound layer arranged between the anode and the cathode and including at least one light emission layer. This organic electroluminescent element is characterized in that the organic compound layer includes an electron transport material-containing layer which contains an electron transport material represented by Formula (a) and at least one substance selected from the group consisting of metals, salts of the metals and electron-donating compounds. Formula (a) Ar1-(Ar2)n [In the formula, Ar1 represents a group derived from an aromatic hydrocarbon ring or a group derived from an aromatic heterocycle; Ar2 represents a group derived from an aromatic heterocycle; and n represents an integer of 2 or more.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: April 22, 2014
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Yoshiyuki Suzuri, Akira Kawakami, Hiroshi Kita
  • Patent number: 8703804
    Abstract: The present invention provides novel ryanodine receptor type 2 (RyR2) inhibitors and methods of their use in the treatment of cardiac conditions. In general, the RyR2 inhibitors of the present invention assist in the normalization of intracellular calcium homeostasis. In certain embodiments, the RyR2 inhibitors are store-overload-induced Ca2+ release (SOICR) inhibitors that minimally inhibit or do not inhibit Ca2+-induced Ca2+ release (CICR), thereby providing beneficial effects in cardiac therapy.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: April 22, 2014
    Assignee: UTI Limited Partnership
    Inventors: S. R. Wayne Chen, Thomas G. Back, Dawei Jiang, Kannan Vembaiyan
  • Patent number: 8703305
    Abstract: To provide a new bipolar organic compound. In particular, to provide a bipolar organic compound having excellent heat resistance and to provide a bipolar organic compound which is electrochemically stable. Further, to provide a light emitting element and a light emitting device of which a driving voltage and power consumption are reduced by using a new bipolar organic compound. Further, to provide a light emitting element and a light emitting device which have excellent heat resistance by using a new bipolar organic compound. Further, to provide a light emitting element and a light emitting device which have a long life by using a new bipolar organic compound.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: April 22, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masakazu Egawa, Satoshi Seo, Nobuharu Ohsawa
  • Publication number: 20140103300
    Abstract: Novel heterocyclic compounds that impart improved luminescence efficiency characteristics such as low voltage, high luminance and long lifetime to organic light-emitting devices are described. Synthetic methods for the subject heterocyclic compounds are described. Methods for the construction of an organic light-emitting device comprising at least one of the subject heterocyclic compounds and comprising various hole transport layers, various electron transport layers and an emission layer are disclosed. The emission layer can comprise red, green, blue and white emission layers; one of said emission layers can comprise a phosphorescent compound. In certain embodiments, the heterocyclic compounds are useful as either fluorescent dopants or as phosphorescent hosts in the emission layer.
    Type: Application
    Filed: November 30, 2012
    Publication date: April 17, 2014
    Inventors: Sun-Young Lee, Yoon-Hyun Kwak, Bum-Woo Park, Jong-Won Choi, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee, Bo-Ra Lee
  • Patent number: 8697255
    Abstract: The present invention relates to an organic light-emitting diode comprising an anode and a cathode Ka and a light-emitting layer E and if appropriate at least one further layer, where the light-emitting layer E and/or the at least one further layer comprises at least one compound selected from disilylcarbazoles, disilyldibenzofurans, disilyldibenzothiophenes, disilyldibenzophospholes, disilyldibenzothiophene S-oxides and disilyldibenzothiophene S,S-dioxides, to a light-emitting layer comprising at least one of the aforementioned compounds, to the use of the aforementioned compounds as matrix material, hole/exciton blocker material, electron/exciton blocker material, hole injection material, electron injection material, hole conductor material and/or electron conductor material, and to a device selected from the group consisting of stationary visual display units, mobile visual display units and illumination units comprising at least one inventive organic light-emitting diode.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: April 15, 2014
    Assignee: BASF SE
    Inventors: Nicolle Langer, Klaus Kahle, Christian Lennartz, Oliver Molt, Evelyn Fuchs, Jens Rudolph, Christian Schildknecht, Soichi Watanabe, Gerhard Wagenblast
  • Patent number: 8685541
    Abstract: Disclosed are electroluminescent materials comprising a homopolymer based on recurring structural units of the formula (I) wherein R9, R9? R9?, R11, R13 R14, R11?, R13?, R14? independently are H or an organic substituent, where at least one of R9, R9? R9?, R11, R13 R14, R11?, R13?, R14? comprises a group R10 of the formula —(Sp)x10-[PG?]< wherein Sp is a divalent organic spacer, PG? is a group derived from a polymerizable group, and x10 is 0 or 1, with substituents and spacer as defined in claim 1. Further disclosed are some novel polymers of this class as well as monomers for their preparation. The homopolymers are advantageously used as a host material in devices further comprising a luminescent component, which is usually selected from phosphorescent metal complexes and fluorescent dopants.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: April 1, 2014
    Assignee: BASF SE
    Inventors: Natalia Chebotareva, Roger Pretot, Paul Adriaan Van Der Schaaf, Annemarie Wolleb, Heinz Wolleb
  • Patent number: 8685543
    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: May 31, 2012
    Date of Patent: April 1, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Toshihiro Iwakuma, Chishio Hosokawa, Hidetsugu Ikeda, Seiji Tomita, Takashi Arakane
  • Patent number: 8679648
    Abstract: A heterocyclic compound represented by Formula 1 below and an organic light-emitting diode (OLED) including the same: wherein R1 through R12, Ar1, Ar2, A, B, a, and b are the same as defined above. An OLED including an organic layer including the heterocyclic compound has low driving voltage, high luminous efficiency, and a long lifetime.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: March 25, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Hyun Han, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jin-O Lim, Soo-Yon Kim, Il-Soo Oh, Jong-Hyuk Lee
  • Patent number: 8679647
    Abstract: The invention relates to organic electroluminescent devices which comprise triazine derivatives as the electron transport material.
    Type: Grant
    Filed: November 26, 2009
    Date of Patent: March 25, 2014
    Assignee: Merck Patent GmbH
    Inventors: Christof Pflumm, Simone Leu, Joachim Kaiser, Amir Hossain Parham, Frank Voges, Jonas Valentin Kroeber, Arne Buesing
  • Patent number: 8679645
    Abstract: The present invention relates to novel materials which can be used in organic electronic devices, in particular electroluminescent devices, and are certain derivatives of fused aromatic systems.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: March 25, 2014
    Assignee: Merck Patent GmbH
    Inventors: Holger Heil, Arne Buesing, Philipp Stoessel, Horst Vestweber
  • Patent number: 8674114
    Abstract: A novel carbazole compound that can be used for a transport layer, a host material, or a light-emitting material in a light-emitting element. In the carbazole compound, two carbazole skeletons each include carbazole, the 3-position of which is bonded to the 4-position of a dibenzofuran skeleton or a dibenzothiophene skeleton and these two carbazole skeletons are linked via benzene or biphenyl. The carbazole compound has an excellent carrier-transport property and a wide energy gap and can be suitably used for a material in a light-emitting element or for an organic semiconductor material.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: March 18, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Sachiko Kawakami, Kaori Ogita, Nobuharu Ohsawa, Hiromi Seo, Satoshi Seo
  • Patent number: 8673459
    Abstract: An object is to provide a light-emitting element with high emission efficiency which includes a novel carbazole derivative that has a wide energy gap and can be used for a transport layer or a host material in a light-emitting element. A carbazole derivative in which the 4-position of dibenzothiophene or dibenzofuran is bonded to the 2- or 3-position of carbazole has been able to be provided by use of the carbazole derivative. Further, a light-emitting element having high emission efficiency has been able to be provided by use of the carbazole derivative.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: March 18, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Harue Osaka, Sachiko Kawakami, Nobuharu Ohsawa, Tsunenori Suzuki, Hiromi Nowatari, Hiroki Suzuki, Kyoko Takeda
  • Patent number: 8673460
    Abstract: The present invention relates to a novel heterocyclic derivative and an organic light emitting device using the compound, and the heterocyclic derivative may largely improve a life span, efficiency, electrochemical stability and thermal stability of the organic light emitting device.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: March 18, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Ji-Eun Kim, Kong-Kyeom Kim, Se-Hwan Son, Jun-Gi Jang
  • Publication number: 20140070204
    Abstract: The present invention provides an organic thin-film light emitting device having both high luminance efficiency and durability due to the use of a light emitting device material containing a compound having a specific carbazole skeleton.
    Type: Application
    Filed: May 8, 2012
    Publication date: March 13, 2014
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Kazumasa Nagao, Tsuyoshi Tominaga, Jinwoo Kwon
  • Publication number: 20140070199
    Abstract: A compound for an organic optoelectronic device, an organic light emitting diode, and a display device including the organic light emitting diode, the compound being represented by the following Chemical Formula 1:
    Type: Application
    Filed: November 6, 2013
    Publication date: March 13, 2014
    Inventors: Sung-Hyun JUNG, Dal-Ho HUH, Dong-Wan RYU, Kyoung-Mi LEE, Eui-Su KANG, Mi-Young CHAE
  • Patent number: 8669373
    Abstract: To provide a method for producing a wide variety of carbazole derivatives which have a simple and uncomplicated process and in which variations in the yield, purity, etc. of a desired substance which are caused by an aryl group introduced is reduced as much as possible. A method for producing a carbazole derivative represented by General Formula (1) is provided, in which 9-[4-(10-phenyl-9-anthryl)phenyl]-9H-carbazole having an active site at the 3-position of the carbazole skeleton and an aromatic compound having an active site are coupled. In the formula, Ar1 represents an aryl group with 6 to 13 carbon atoms in a ring, and Ar1 may have a substituent.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: March 11, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroki Suzuki, Sachiko Kawakami, Nobuharu Ohsawa, Satoshi Seo
  • Publication number: 20140048784
    Abstract: A biscarbazole derivative having a specific group, which is represented by formula (1): and an organic electroluminescence device in which a plurality of organic thin-film layers including a light emitting layer are disposed between a cathode and an anode, and at least one of the organic thin-film layers include the biscarbazole derivative. The organic electroluminescence device exhibits high emission efficiency and has a long lifetime. In formula (1), each of A1 and A2 independently represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms; each of Y1 to Y16 independently represents C(R) or a nitrogen atom; each of R groups independently represents a hydrogen atom, etc.; and each of L1 and L2 independently represents a single bond, etc.; provided that at least one of A1, A2 and R represents a substituted or unsubstituted fluoranthenyl group, etc.
    Type: Application
    Filed: February 6, 2012
    Publication date: February 20, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tetsuya Inoue, Mitsunori Ito, Kumiko Hibino, Kazuki Nishimura, Kiyoshi Ikeda
  • Patent number: 8652653
    Abstract: Novel materials are provided, having a single phenyl or a chain of phenyls where there is a nitrogen atom on each end of the single phenyl or chain of phenyls. The nitrogen atom may be further substituted with particular thiophene, benzothiophene, and triphenylene groups. Organic light-emitting devices are also provided, where the novel materials are used as a hole transport material in the device. Combinations of the hole transport material with specific host materials are also provided.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: February 18, 2014
    Assignee: Universal Display Corporation
    Inventors: Chun Lin, Bin Ma, Chuanjun Xia, Yonggang Wu, Raymond Kwong
  • Patent number: 8652656
    Abstract: Novel aryl silicon and aryl germanium host materials, and in particular host materials containing triphenylene and pyrene fragments, are described. These compounds improve OLED device performance when used as hosts in the emissive layer of the OLED.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: February 18, 2014
    Assignee: Universal Display Corporation
    Inventors: Lichang Zeng, Alexey Dyatkin, Gregg Kottas
  • Patent number: 8652654
    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: April 20, 2011
    Date of Patent: February 18, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Tetsuya Inoue, Mitsunori Ito, Kei Yoshida, Kumiko Hibino, Kazuki Nishimura, Toshinari Ogiwara, Kiyoshi Ikeda
  • Publication number: 20140042411
    Abstract: Provided is a method for purifying an organic material having a 10% weight reduction temperature of 250° C. or more as measured by thermogravimetry at a vacuum degree of 1×10?2 Pa or less, which may sublime and purify the organic material having high heat resistance at high sublimation temperature with high purity and high yield in a short period of time, in which the organic material is subjected sublimation purification after a concentration of inorganic impurities in the organic material is adjusted to 5,000 ppm or less.
    Type: Application
    Filed: October 7, 2013
    Publication date: February 13, 2014
    Applicant: FUJIFILM CORPORATION
    Inventor: Eiji FUKUZAKI
  • Publication number: 20140034915
    Abstract: A heterocyclic compound is represented by Formula 1. An organic light emitting device includes a first electrode, a second electrode and an organic layer between the first and second electrodes. The organic layer includes the heterocyclic compound. An organic light-emitting display apparatus includes the organic light-emitting device and a transistor including a source, a drain, a gate and an active layer. The source or the drain is electrically connected to the first electrode of the organic light-emitting device.
    Type: Application
    Filed: January 25, 2013
    Publication date: February 6, 2014
    Applicant: SAMSUNG DISPLAY CO. LTD.
    Inventors: Sun-Young Lee, Yoon-Hyun Kwak, Bum-Woo Park, Jong-Won Choi, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee
  • Publication number: 20140034928
    Abstract: A novel organic compound having a high hole-transport property is provided. A long-lifetime light-emitting element is provided. An organic compound represented by General Formula (G0) is provided. In General Formula (G0), Ar1 represents a substituted or unsubstituted naphthyl group, Ar2 represents a substituted or unsubstituted carbazolyl group, Ar3 represents a substituted or unsubstituted fluorenyl group or a substituted or unsubstituted spirofluorenyl group, and ?1 and ?2 each independently represent a substituted or unsubstituted phenylene group or a substituted or unsubstituted biphenyldiyl group.
    Type: Application
    Filed: August 1, 2013
    Publication date: February 6, 2014
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoko Shitagaki, Takao Hamada, Kanta Abe, Satoshi Seo
  • Patent number: 8642189
    Abstract: The invention provides an organic compound which shows an excellent electron-injecting/transporting performance, has a hole-blocking ability and shows a high stability as a film, that is, having excellent characteristics as a material for organic electroluminescent device having high efficiency and high durability; and provides an organic EL device comprising the compound and having high efficiency and high durability.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: February 4, 2014
    Assignees: Hodogaya Chemical Co., Ltd., Shinshu University, National University Corporation
    Inventors: Norimasa Yokoyama, Shuichi Hayashi, Makoto Nagaoka, Yoshio Taniguchi, Musubu Ichikawa
  • Patent number: 8642782
    Abstract: An object is to provide a novel carbazole derivative that has an excellent carrier-transport property and can be suitably used for a transport layer or as a host material of a light-emitting element. Another object is to provide an organic semiconductor material and a light-emitting element material each using the carbazole derivative. As the carbazole derivative that can achieve the above objects, a carbazole derivative in which a carbazolyl group whose either 2- or 3-position of carbazole is substituted by the 4-position of a dibenzothiophene skeleton or a dibenzofuran skeleton is bonded to aromatic hydrocarbon that has 14 to 70 carbon atoms and includes a condensed tricyclic ring, a condensed tetracyclic ring, a condensed pentacyclic ring, a condensed hexacyclic ring, or a condensed heptacyclic ring has been able to be synthesized.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: February 4, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroki Suzuki, Kyoko Takeda, Sachiko Kawakami, Tsunenori Suzuki, Satoshi Seo, Nobuharu Ohsawa
  • Publication number: 20140027747
    Abstract: The present invention relates to a compound, which is represented by one chemical formula among the chemical formulas (1) to (3), an organic electronic element comprising the compound, and an electronic device comprising the organic electronic element. The compound is characterized by comprising at least one phenyl group having at least one substitution with deuterium or tritium.
    Type: Application
    Filed: March 29, 2012
    Publication date: January 30, 2014
    Applicant: DUKSAN HIGH METAL CO., LTD.
    Inventors: Soungyun Mun, Bumsung Lee, Jungcheol Park, Kiwon Kim, Yongwook Park, Jeongkeun Park, Heesun Ji, Junghwan Park
  • Publication number: 20140027741
    Abstract: Heterocyclic compounds, synthetic methods for preparing the same, and organic light-emitting display devices comprising the same are described. The subject heterocyclic compounds may comprise an aromatic ring or a heteroaromatic ring fused with a carbazole, dibenzothiophene, or dibenzofurane derivative, the compounds featuring rigid backbone structures with high glass transition temperatures and high melting points. The subject heterocyclic compounds may exhibit high electrical stability, improved charge transport ability, high heat resistance and improved light-emitting properties when used in organic light-emitting devices. Organic light-emitting display devices prepared according to the present invention exhibit lower driving voltages, increased luminescent efficiencies and longer lifetimes.
    Type: Application
    Filed: June 17, 2013
    Publication date: January 30, 2014
    Inventors: Bum-Woo PARK, Yoon-Hyun KWAK, Sun-Young LEE, Jong-Won CHOI, Wha-Il CHOI, So-Yeon KIM, Ji-Youn LEE, Jin-Young YUN
  • Publication number: 20140027754
    Abstract: The present invention provides a light emitting device material containing a compound having a specific pyrene structure, capable of providing an organic thin-film light emitting device which enables high-efficiency light emission and low-voltage driving, and is also excellent in durability; and a light emitting device using the same.
    Type: Application
    Filed: June 11, 2012
    Publication date: January 30, 2014
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Koji Ueoka, Kazumasa Nagao, Kazunori Sugimoto, Tsuyoshi Tominaga
  • Patent number: 8628864
    Abstract: There is provided an indolo[3,2,1-jk]carbazole compound having an excellent membrane property, a high T1 energy, and a deep HOMO level. There is also provided an organic light-emitting device that contains the indolo[3,2,1-jk]carbazole compound. There is provided an indolo[3,2,1-jk]carbazole compound having a high T1 energy and a deep HOMO level.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: January 14, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigemoto Abe, Jun Kamatani, Kengo Kishino
  • Publication number: 20140008633
    Abstract: A biscarbazole derivative represented by formula (1): wherein A1, A2, L1, L2, R1 to R4, and a to d are as defined in the specification, is useful as a material for forming organic EL devices and the organic EL devices including the derivative is capable of driving at a low voltage and has a long lifetime.
    Type: Application
    Filed: March 21, 2012
    Publication date: January 9, 2014
    Applicants: MITSUI CHEMICALS, INC, IDEMITSU KOSAN CO., LTD
    Inventors: Tomoki Kato, Nobuhiro Yabunouchi, Takahiro Fujiyama
  • Patent number: 8623522
    Abstract: Provided are a novel aromatic amine derivative having a specific structure and an organic electroluminescence device in which an organic thin layer comprising a single layer or plural layers including a light emitting layer is interposed between a cathode and an anode, wherein at leas one layer of the above organic thin layer contains the aromatic amine derivative described above in the form of a single component or a mixed component. Thus, the organic electroluminescence device is less liable to be crystallized in molecules, improved in a yield in producing the organic electroluminescence device and extended in a lifetime.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: January 7, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Nobuhiro Yabunouchi, Tetsuya Inoue
  • Patent number: 8623521
    Abstract: A heterocyclic compound, an organic light-emitting diode, and a flat display device, the heterocyclic compound being represented by Formula 1, below:
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: January 7, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Kook Kim, Seok-Hwan Hwang, Hye-Jin Jung, Jin-O Lim, Sang-Hyun Han, Yoon-Hyun Kwak, Sun-Young Lee, Hee-Joo Ko, Jong-Hyuk Lee, Sung-Chul Kim
  • Publication number: 20140001449
    Abstract: The present invention relates to a novel triscarbazole compound having substituent on N-phenyl, which can be represented by Formula (I). wherein R1 is selected from the group consisting of hydrogen, halogen or alkyl or alkoxy group having 1 to 20 carbon atoms wherein at least one hydrogen atom is optionally replaced by halogen; RA, RB, RC, RD and RE are any of substituents other than hydrogen wherein at least two of R1 and RA may further form a fused ring; and i, j, k, l and m are same or different at each occurrence and represent an integer from 0 to 4, with the proviso that when R1 is hydrogen, i is not 0. By introduction of the substituent on N-phenyl, the device efficiency, stability and lifetime can be increased while maintaining the solubility. These compounds can be used in various organic devices such as organic light emitting diodes, photovoltaic cells or organic semiconductor devices.
    Type: Application
    Filed: August 23, 2011
    Publication date: January 2, 2014
    Applicant: Solvay SA
    Inventors: Jonathan Maunoury, Enrico Orselli, Alexandre Ferrand, Dominique Bascour
  • Publication number: 20140001446
    Abstract: A material for organic electroluminescence device having a specific central skeleton to which a cyano-substituted aromatic hydrocarbon group or a cyano-substituted heterocyclic group is bonded at its specific position is described. Further described is an organic electroluminescence device including an organic thin film layer between an anode and a cathode. The organic thin film layer include an light emitting layer and at least one layer of the organic thin film layer contains the material for organic electroluminescence device. The material for organic electroluminescence device realizes an organic electroluminescence device with good emission efficiency.
    Type: Application
    Filed: December 5, 2012
    Publication date: January 2, 2014
    Inventors: Yumiko MIZUKI, Mitsunori Ito, Tetsuya Inoue, Kumiko Hibino, Kazuki Nishimura, Kei Yoshida
  • Publication number: 20140005411
    Abstract: The invention relates to solution-processable, p-type, low-optical gap oligothiophene compounds for use in solar cell application, comprising at least one thiophene-containing group, at least one electron-withdrawing dicyanovinyl or tricyanovinyl group, and at least one electron-donating diphenylaminofluorenyl or N-alkylcarbazole group.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 2, 2014
    Inventors: Ricky Man-Shing Wong, Weifeng Zhang, Lei Guo
  • Patent number: 8617722
    Abstract: The present invention provides a polymer material capable of preparing organic EL elements having low driving voltage and high durability. The polymer compound of the present invention includes a constituting unit derived from a monomer represented by the formula (1); (in the formula (1), each of A1's is independently a condensed polycyclic aromatic group optionally having a heteroatom as a ring-constituting atom; the condensed polycyclic aromatic group links to A2 at the meta position to the bonding position of the ring represented by the following formula; each of A2's is independently a six-membered ring aromatic group optionally having a heteroatom as a ring-constituting atom; at least one of A1 and A2 has a substituent having a polymerizable functional group; at least one of X's is a nitrogen atom, and n's are independently 1 or 2).
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: December 31, 2013
    Assignee: Showa Denko K.K.
    Inventors: Masahiko Toba, Tsuyoshi Kato