Polycondensed Aromatic Or Heteroaromatic Compound (e.g., Pyrene, Perylene, Pentacene) (epo) Patents (Class 257/E51.049)
  • Patent number: 9034482
    Abstract: The present invention relates to the improvement of organic electroluminescent devices which consist of a certain matrix material which has been doped with at least one phosphorescent emitter, and which are characterized in that the doping zone of the emitter in the matrix at right angles to the layer extends only over a part of the matrix layer.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: May 19, 2015
    Assignee: Merck Patent GmbH
    Inventors: Horst Vestweber, Anja Gerhard, Philipp Stössel
  • Patent number: 8940409
    Abstract: Disclosed is an organic light emitting material having the following chemical formula, for improving luminous efficiency, where R1, R2, R3 and R4 denote materials selected from an aromatic group with 6-24 carbon atoms (C6-C24), the group being independently substituted or unsubstituted, preferably, an aromatic group with 6-24 carbon atoms (C6-C24), the group consisting of trimethylsilane (TMS), CN, halogen (F, Cl, Br) alkyl groups with 1-4 carbon atoms (C1-C4).
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: January 27, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Jong-Kwan Bin, Soon-Wook Cha, Seung-Jae Lee, In-Bum Song, Jung-Keun Kim, Do-Han Kim, Chun-Gun Park, Nam-Sung Cho
  • Patent number: 8937303
    Abstract: An organic electroluminescent device comprising: a pair of electrodes comprising an anode and a cathode, and one or more layers of organic compound arranged between the pair of electrodes, wherein the organic compound layer, or one or more of the organic compound layers, comprises a compound represented by a substituted imidazole. The substituents on the imidazole ring may be selected from a range of suitable substituents, including: substituted or unsubstituted aryl groups, substituted or unsubstituted heterocyclic groups, substituted or unsubstituted alkyl groups or cyano groups. In various aspects of the invention, at least one of the substituent groups may be a substituted or unsubstituted imidazole or thiophene group.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: January 20, 2015
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: James Matthew MacDonald, Kazunori Ueno, Karl Peter Weber, Tadahiko Hirai, Juo-Hao Li
  • Patent number: 8906521
    Abstract: Disclosed is a useful organic EL device which comprises a phosphorescent light-emitting layer and is endowed with improved luminous efficiency and high driving stability. Also disclosed is a hole-transporting material suitable for use in the phosphorescent light-emitting device. The hole-transporting material is a triptycene derivative which has substituents at the 9- and 10-positions and is substituted with an aromatic group containing at least one diarylamino group (—ArNAr2). The organic EL device contains the triptycene derivative in at least one organic layer selected from the group of a phosphorescent light-emitting layer, a hole-transporting layer, an electron-blocking layer, and an exciton-blocking layer. The diarylamino group (—NAr2) may be fused to form an aromatic heterocyclic group such as a carbazolyl group.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: December 9, 2014
    Assignee: Nippon Steel & Sumikin Chemical Co., Ltd.
    Inventors: Mitsuru Suda, Takahiro Kai, Toshihiro Yamamoto
  • Patent number: 8835020
    Abstract: A blue fluorescent compound includes a host material being capable of transporting an electron or a hole; and a dopant material represented by following Formula 1: wherein at least two of the R1, the R2, the R3, and the R4 are selected from substituted or non-substituted aromatic group or substituted or non-substituted heterocyclic group, and the R5 is selected from substituted or non-substituted aromatic group or substituted or non-substituted heterocyclic group.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: September 16, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Seung-Jae Lee, In-Bum Song, Jung-Keun Kim, Do-Han Kim, Chun-Gun Park, Hyoung-Yun Oh, Jong-Kwan Bin, Kyung-Hoon Lee, Hyun-Cheol Jeong, Dong-Hee Yoo, Nam-Sung Cho, Jong-Hyun Park, In-Sun Yoo, Tae-Han Park, Soon-Wook Cha
  • Patent number: 8779655
    Abstract: An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. The organic thin-film layer includes at least one emitting layer. The at least one emitting layer contains at least one phosphorescent material and a host material represented by the following formula (1).
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: July 15, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Kenichi Fukuoka, Chishio Hosokawa, Masahiro Kawamura, Mitsunori Ito, Yoriyuki Takashima, Toshinari Ogiwara
  • Patent number: 8748010
    Abstract: The present invention relates to compounds of the formula (1) and to the use thereof in organic electroluminescent devices. The compounds of the formula (1) 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: July 26, 2006
    Date of Patent: June 10, 2014
    Assignee: Merck Patent GmbH
    Inventors: Holger Heil, Arne Buesing, Philipp Stoessel, Horst Vestweber, Amir Hossain Parham
  • Patent number: 8703302
    Abstract: Disclosed is an organic electroluminescent device (organic EL device) that is improved in the luminous efficiency, fully secured of the driving stability, and of a simple structure and disclosed also is a compound useful therefor. The organic EL device comprises a light-emitting layer disposed between an anode and a cathode piled one upon another on a substrate and the said light-emitting layer comprises a phosphorescent dopant and an indolocarbazole derivative as a host material. The indolocarbazole derivative is represented by the following formula (3) wherein Ar is an aromatic group and L is a direct bond or an aromatic group.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: April 22, 2014
    Assignee: Nippon Steel & Sumikin Chemical Co., Ltd.
    Inventors: Takahiro Kai, Masaki Komori, Toshihiro Yamamoto
  • Patent number: 8614357
    Abstract: SBF derivatives, represented with the following formula: SBF-X wherein: with m=0, 1, 2 or 3; p=positive integer,; n=positive integer; L: is the same or different and independently represents C, PR, AsR, SbR, BiR, S, Se, Te, S?Y, Se?Y or Te?Y; Y: is the same or different and independently represents O, S, Se or Te; K: is the same or different and independently represents a chemical bond or a group selected from O, S, BR(2?p), N, NR(2?p), R(2?p)P?O, B3O3, (PR)3N3, CR(3?p), CR(3?p)(C6H4)(p+1), SiR(3?p)(C6H4)(p+1) alkyne, substituted alkyne, alkyne, substituted alkyne, aromatic or R substituted aromatic, heteroaromatic-or a combination of two, three or four of the above mentioned groups; SBF: spiro-compound of formula (I): R, A, B, C, D: is the same or different and independently represents H, deuterium, F, Cl, Br, I, CN, a linear, branched or cyclic alkyl, alkoxy or thioalkoxy chain, or a combination from two, three or four of these systems; two or more substituents R can form a further monocyclic or
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: December 24, 2013
    Assignee: Merck Patent GmbH
    Inventors: Liliana Bagala'Rampazzo, Giulia Fioravanti, Leonardo Mattiello
  • Patent number: 8610345
    Abstract: A light emitting device material containing a pyrene compound of formula (1) and a light emitting device.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: December 17, 2013
    Assignee: TORAY Industries, Inc.
    Inventors: Seiichiro Murase, Kazumasa Nagao, Kazunori Sugimoto, Takeshi Ishigaki, Takafumi Ogawa
  • Patent number: 8465851
    Abstract: A device is provided, having an anode, a cathode, and two adjacent organic layers disposed between the anode and the cathode. One organic layer is a phosphorescent emissive material. The other organic layer may comprise an aromatic hydrocarbon material, comprising an aromatic non-heterocyclic hydrocarbon core optionally substituted, and wherein the substituents are the same or different, and each is selected from the group consisting of alkyl, alkenyl, alkynyl, aryl, heteroalkyl, substituted aryl, substituted heteroaryl and heterocyclic groups. The second organic layer may comprise a material having a molecular dipole moment less than about 2.0 debyes, such that the device has an unmodified external quantum efficiency of at least about 3% and a lifetime of at least about 1000 hours at an initial luminance of about 100 to about 1000 cd/m2.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: June 18, 2013
    Assignees: Universal Display Corporation, The University of Southern California
    Inventors: Mark E. Thompson, Raymond Kwong, Yeh-Jiun Tung, Jason Brooks
  • Patent number: 8455311
    Abstract: A solid state Klystron structure is fabricated by forming a source contact and a drain contact to both ends of a conducting wire and by forming a bias gate and a signal gate on the conducting wire. The conducting wire may be at least one carbon nanotube or at least one semiconductor wire with long ballistic mean free paths. By applying a signal at a frequency that corresponds to an integer multiple of the transit time of the ballistic carriers between adjacent fingers of the signal gate, the carriers are bunched within the conducting wire, thus amplifying the current through the solid state Klystron at a frequency of the signal to the signal gate, thus achieving a power gain.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: June 4, 2013
    Assignee: International Business Machines Corporation
    Inventor: Paul M. Solomon
  • Patent number: 8426036
    Abstract: An organic EL device includes: an anode for injecting holes; a phosphorescent-emitting layer; a fluorescent-emitting layer; and a cathode for injecting electrons. The phosphorescent-emitting layer contains a phosphorescent host and a phosphorescent dopant for phosphorescent emission. The fluorescent-emitting layer contains a fluorescent host and a fluorescent dopant for fluorescent emission. The fluorescent host is at least one of an asymmetric anthracene derivative represented by a formula (1) below and a pyrene derivative represented by a formula (2) below.
    Type: Grant
    Filed: July 4, 2008
    Date of Patent: April 23, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Masahiro Kawamura, Chishio Hosokawa, Kenichi Fukuoka, Yukitoshi Jinde
  • Patent number: 8395143
    Abstract: The present invention provides a novel compound that is capable of largely improving lifespan, efficiency, electrochemical stability and thermal stability of the organic light emitting device, and an organic light emitting device in which the compound is included in an organic compound layer.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: March 12, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Jae-Chol Lee, Kong-Kyeom Kim, Sung-Kil Hong, Tae-Yoon Park
  • Patent number: 8330350
    Abstract: An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. In the organic electroluminescence device, the organic thin-film layer includes at least one emitting layer, and the at least one emitting layer includes at least one phosphorescent material and a host material represented by the following Formula (1).
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: December 11, 2012
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Kenichi Fukuoka, Chishio Hosokawa, Masahiro Kawamura, Mitsunori Ito, Yoriyuki Takashima, Toshinari Ogiwara
  • Patent number: 8330153
    Abstract: Provided is an organic light-emitting device that shows high luminous efficiency even when driven at a high luminance. More specifically, provided is an organic light-emitting device, including: an anode (transparent electrode layer) and a cathode (metal electrode layer); and an organic compound layer being interposed between the anode and the cathode, and including an emission layer, in which: the emission layer has a host, a first dopant, and a second dopant; the host includes an aromatic hydrocarbon compound; the first dopant includes a phosphorescent iridium complex; and the second dopant includes a compound having two triarylamine structures.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: December 11, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryota Ooishi, Jun Kamatani, Kengo Kishino, Tetsuya Kosuge, Shigemoto Abe
  • Patent number: 8278819
    Abstract: In an organic electroluminescence device including a cathode and an anode, at least an emitting layer and an electron transporting layer are provided between the cathode and the anode. The emitting layer contains a host material formed of a naphthacene derivative represented by the following formula (1) and a dopant material formed of a compound having a pyrromethene skeleton represented by the following formula (2) or a metal complex of the compound. The electron transporting layer is preferably a benzoimidazole derivative.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: October 2, 2012
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Chishio Hosokawa, Takayasu Sado, Kiyoshi Ikeda
  • Patent number: 8277955
    Abstract: A compound for an organic EL device as a light-emitting material for use in an organic EL device is provided. The compound includes a polymer molecule containing a light-emitting molecule for determining a luminescent color region of the light-emitting material, and molecules represented by Formulas (1) to (4) as constituent units. (wherein R represents an alkyl group, an aryl group, or an alkylaryl group) (wherein R? represents hydrogen, an alkyl group, or an alkylaryl group).
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: October 2, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Tetsuji Fujita
  • Patent number: 8216697
    Abstract: The present invention relates to an OLED device including a cathode, an anode, and having therebetween a light-emitting layer, further including, between the cathode and the light emitting layer, a first layer containing a fluoranthene-macrocyclic compound. The fluoranthene-macrocyclic compound includes a fluoranthene nucleus having the 7,10-positions connected by a linking group. The fluoranthene nucleus can be further substituted, provided substituents in the 8- and 9-positions cannot combine to form a five-membered ring group. The OLED device includes at least one layer, between the light-emitting layer and the cathode, containing an alkali metal material. It provides improvement in features such as efficiency and drive voltage.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: July 10, 2012
    Assignee: Global Oled Technology LLC
    Inventors: William J. Begley, Natasha Andrievsky
  • Patent number: 8217570
    Abstract: Provided are an anthracene derivative having a heteroaryl group containing a nitrogen-containing six-membered ring and having a specific structure and an organic electroluminescence device in which an organic thin film layer comprising a single layer or plural layers including at least a light emitting layer is interposed between a cathode and an anode, wherein at least one layer in the above organic thin film layer contains the anthracene derivative described above in the form of a single component or a mixed component. Provided are the organic electroluminescence device in which homogeneous light emission is obtained over a long period of time and which has a long lifetime and the anthracene derivative which materializes the same.
    Type: Grant
    Filed: November 25, 2005
    Date of Patent: July 10, 2012
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Masahiro Kawamura, Chishio Hosokawa
  • Patent number: 8188462
    Abstract: The invention concerns Spirobifluorene derivatives having the general formula (II) and the corresponding, radical anions that can be represented via the general formula (II): in which K, L, M and N, the same or different from each other, are independently: H or A-C?O, with the proviso that it is never K=L=M=N?H, wherein A is an aromatic group, possibly substituted with at least an R? group selected in the group of the substituents commonly used in organic chemistry and/or at least one R group where R=aliphatic radical. The invention also concerns the method for preparing said derivatives and radical anions. Said compounds are applied in the field of components for molecular electronics, in particular systems for electroluminescence, molecular-based computational systems, OLEDs, molecular switching components, components for non-linear optics, field-effect transistors and semiconductors with negative differential resistance.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: May 29, 2012
    Assignee: Merck Patent GmbH
    Inventors: Liliana Bagala' Rampazzo, Giulia Fioravanti, Leonardo Mattiello
  • Patent number: 8154195
    Abstract: An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. In the organic electroluminescence device, the organic thin-film layer includes at least one emitting layer, and the at least one emitting layer contains: at least one phosphorescent material; and a host material represented by the following formula (1). Ra—Ar1—Ar2—Rb??(1) In the formula, Ar1, Ar2, Ra and Rb each represent a substituted or unsubstituted benzene ring or a substituted or unsubstituted condensed aromatic hydrocarbon group selected from a group consisting of a naphthalene ring, a chrysene ring, a fluoranthene ring, a triphenylene ring, a phenanthrene ring, a benzophenanthrene ring, a dibenzophenanthrene ring, a benzotriphenylene ring, a benzochrysene ring, a picene ring and a benzo[b]fluoranthene ring.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: April 10, 2012
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Kenichi Fukuoka, Chishio Hosokawa, Masahiro Kawamura, Mitsunori Ito, Yoriyuki Takashima, Toshinari Ogiwara
  • Patent number: 8115378
    Abstract: This invention relates to electroluminescent 3,6,9,12-tetrasubstituted chrysenes that are useful in electroluminescent applications. It also relates to electronic devices in which the active layer includes such a chrysene composition.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: February 14, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Alex Sergey Ionkin
  • Patent number: 8110824
    Abstract: Provided are a novel benzo[a]fluoranthene compound and an organic light emitting device having extremely good light emitting efficiency, extremely good luminance, and durability. The benzo[a]fluoranthene compound is represented by the following general formula (I): wherein: at least one of R11 to R22 represents Rm represented by the following general formula (i): Rm=—X1—Ar1??(i) wherein X1 represents a substituted or unsubstituted phenylene group, or a substituted or unsubstituted, divalent monocyclic heterocyclic group, and Ar1 represents one of the following groups (a) and (b): (a) a substituted or unsubstituted fused polycyclic group, and (b) a composite substituent formed by combining two or more of a benzene ring, a monocyclic heterocyclic ring, and a fused polycyclic ring, the composite substituent being permitted to have a substituent.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: February 7, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Yamada, Satoshi Igawa, Masashi Hashimoto, Minako Nakasu, Takayuki Horiuchi, Jun Kamatani, Shinjiro Okada
  • Patent number: 8105700
    Abstract: A device is provided, having an anode, a cathode, and two adjacent organic layers disposed between the anode and the cathode. One organic layer is a phosphorescent emissive material. The other organic layer may comprise an aromatic hydrocarbon material, comprising an aromatic non-heterocyclic hydrocarbon core optionally substituted, and wherein the substituents are the same or different, and each is selected from the group consisting of alkyl, alkenyl, alkynyl, aryl, heteroalkyl, substituted aryl, substituted heteroaryl and heterocyclic groups. The second organic layer may comprise a material having a molecular dipole moment less than about 2.0 debyes, such that the device has an unmodified external quantum efficiency of at least about 3% and a lifetime of at least about 1000 hours at an initial luminance of about 100 to about 1000 cd m2.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: January 31, 2012
    Assignees: Universal Display Corporation, The University of Southern California
    Inventors: Mark E. Thompson, Raymond Kwong, Yeh-Jiun Tung, Jason Brooks
  • Patent number: 8106392
    Abstract: An object is to provide a novel anthracene derivative. Another object is to provide a light-emitting element with high luminous efficiency. Yet another object is to provide a light-emitting element with a long lifetime. Still another object is to provide a light-emitting device and an electronic device having a long lifetime by using the light-emitting elements of the present invention. The anthracene derivative represented by General Formula (1) is provided. The ability of the anthracene derivative represented by General Formula (1) to exhibit high luminous efficiency allows the production of a light-emitting element with high luminous efficiency and a long lifetime.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: January 31, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masakazu Egawa, Harue Nakashima, Sachiko Kawakami, Tsunenori Suzuki, Ryoji Nomura
  • Publication number: 20120012831
    Abstract: A compound having a benzotriazole ring structure and a formula (1): wherein Ar is a substituted or unsubstituted aromatic hydrocarbon group, aromatic heterocyclic group, or condensed polycyclic aromatic group; A and B are the same as or different from each other and each represent a hydrogen atom or a monovalent group of formula (2), provided that A and B are not simultaneously hydrogen atoms: wherein R1 to R8 are the same as or different and each represent a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a cyano group, a trifluoromethyl group, a linear or branched alkyl group having 1 to 6 carbon atoms, aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or condensed polycyclic aromatic group; m is an integer of 0, 1 or 2; X represents a carbon atom or a nitrogen atom; when X is a nitrogen atom, the nitrogen atom does not have substituents or bonding groups of R1, R2, R3 and R4; and when m is 2, a plurality of R1, R2, R3, R4 and X each are the s
    Type: Application
    Filed: March 17, 2010
    Publication date: January 19, 2012
    Applicants: Shinshu University, Hodogaya Chemical Co., Ltd.
    Inventors: Norimasa Yokoyama, Shuichi Hayashi, Naoaki Kabasawa, Yoshio Taniguchi, Musubu Ichikawa, Shunji Mochiduki
  • Publication number: 20120012832
    Abstract: There are provided an aromatic monoamine derivative having a fluorene structure-containing organic group and an aromatic hydrocarbon group-containing organic group, and an organic electroluminescent element containing an organic thin film layer composed of a single layer or plural layers while including at least a light emitting layer, the organic thin film layer being between a cathode and an anode, wherein at least one layer of the organic thin film layer, particularly a hole transport layer, contains the aromatic amine derivative alone or as a component of a mixture. An organic electroluminescent element which maintains high luminous efficiency even if exposed to a high temperature environment, and has a low driving voltage and a long emission lifetime, and an aromatic amine derivative capable of realizing the organic electroluminescent element are provided.
    Type: Application
    Filed: March 18, 2010
    Publication date: January 19, 2012
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Nobuhiro Yabunouchi, Tomoki Kato, Takahiro Fujiyawa, Yoshiyuki Totani
  • Publication number: 20120007072
    Abstract: Disclosed is an organic electroluminescent element which can be produced by a wet process, has improved laminated structure, and also has improved external quantum efficiency and an improved service life. The organic electroluminescent element comprises at least an anode; a cathode and a laminated structure intercalated between the anode and the cathode, all of which are arranged on a substrate, wherein the laminated structure has at least four layers formed by a wet process, and wherein the layers produced by the wet process include at least a hole injection layer, a hole transport layer and a light-emitting layer. The organic electroluminescent element is characterized in that the hole injection layer comprises an electrically conductive polymer, the hole transport layer comprises a polymeric compound having a repeating unit represented by general formula (1), and the polymeric compound has a weight average molecular weight of 50,000 to 200,000 in terms of polystyrene content.
    Type: Application
    Filed: April 14, 2010
    Publication date: January 12, 2012
    Inventors: Kazutoshi Murota, Toshihiko Iwasaki
  • Publication number: 20120007070
    Abstract: Provided is an organic electroluminescent device (organic EL device), which has improved luminous efficiency, shows sufficiently ensured driving stability, and has a simple construction. The organic electroluminescent device includes an anode, a cathode, and organic layers including a hole-transporting layer and a light-emitting layer, the organic layers being interposed between the anode and the cathode, in which the light-emitting layer contains a phosphorescent light-emitting material and the hole-transporting layer and the light-emitting layer have an electron- and/or exciton-blocking layer therebetween, the electron- and/or exciton-blocking layer being adjacent to the light-emitting layer and containing an indolocarbazole compound represented by the general formula (2). In the formula, a ring B represents a heterocycle represented by the formula (1c) to be fused with adjacent rings, Z represents an n-valent aromatic hydrocarbon group or an aromatic heterocyclic group, and n represents 1 or 2.
    Type: Application
    Filed: March 25, 2010
    Publication date: January 12, 2012
    Inventors: Takahiro Kai, Toshihiro Yamamoto, Masaki Komori, Kazuaki Yoshimura, Taishi Tsuji, Yasuhiro Takahashi
  • Publication number: 20120007071
    Abstract: An exemplary embodiment of the present invention provides an organic light-emitting device, comprising: a first electrode; a second electrode; and a light emitting layer that is disposed between the first electrode and the second electrode, wherein the organic light-emitting device further comprises a first organic material layer that is contacted with the first electrode and a second organic material layer that is contacted with the second electrode, the first and the second organic material layers comprise a compound represented by Formula 1, and a third organic material layer comprising an n-type dopant between the second organic material layer contacted with the second electrode and the light emitting layer is included, and a method for manufacturing the same.
    Type: Application
    Filed: March 17, 2010
    Publication date: January 12, 2012
    Inventors: Mun-Kyu Joo, Jeoung-Kwen Noh, Jong-Seonk Kim
  • Publication number: 20120001161
    Abstract: Disclosed is an organic electroluminescent element which has achieved both high luminous efficiency and low driving voltage by containing a light-emitting element material, which comprises a specific pyrene compound, in one of the layers that constitute the light-emitting element, preferably in a light-emitting layer or in an electron-transporting layer.
    Type: Application
    Filed: March 25, 2010
    Publication date: January 5, 2012
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Yohei Nakano, Kazunori Sugimoto, Kazumasa Nagao, Daisaku Tanaka, Tsuyoshi Tominaga
  • Publication number: 20110308617
    Abstract: A photoelectric conversion element is provided which includes a semiconductor electrode (108) containing a semiconductor layer (103) and a dye, a counter electrode (109), and an electrolyte layer (104) disposed between the semiconductor electrode (108) and the counter electrode (109) and in which the dye contains a compound expressed by General Formula 1. (where A in General Formula 1 represents a substituted or unsubstituted aromatic group and may contain one or more atoms of oxygen, nitrogen, sulfur, silicon, phosphorus, boron, or halogen and the aromatic group may be obtained by condensing a plurality of aromatic groups).
    Type: Application
    Filed: March 4, 2010
    Publication date: December 22, 2011
    Applicant: NEC CORPORATION
    Inventors: Kentaro Nakahara, Kenji Kobayashi, Masahiro Suguro, Shin Nakamura
  • Publication number: 20110303903
    Abstract: A red light emitting organic electroluminescence device (11) has a structure in which an organic layer (14) including a light emitting layer (14c) is sandwiched between an anode (13) and a cathode (15). In the organic electroluminescence device (11), the light emitting layer (14c) contains, as a host material, a polycyclic aromatic hydrocarbon compound of which a parent skeleton is 4 to 7 rings, together with a red light emitting guest material. In addition, a photosensitizing layer (14d) containing a phosphorescent material having an organic material is provided adjacently to the light emitting layer (14c). Consequently, there are provided a red light organic electroluminescence device being sufficiently good in luminous efficiency and color purity and a display apparatus using the same.
    Type: Application
    Filed: August 3, 2009
    Publication date: December 15, 2011
    Applicant: SONY CORPORATION
    Inventors: Tadahiko Yoshinaga, Shigeyuki Matsunami, Yasunori Kijima
  • Publication number: 20110272680
    Abstract: Disclosed is a useful organic EL device which comprises a phosphorescent light-emitting layer and is endowed with improved luminous efficiency and high driving stability. Also disclosed is a hole-transporting material suitable for use in the phosphorescent light-emitting device. The hole-transporting material is a triptycene derivative which has substituents at the 9- and 10-positions and is substituted with an aromatic group containing at least one diarylamino group (—ArNAr2). The organic EL device contains the triptycene derivative in at least one organic layer selected from the group of a phosphorescent light-emitting layer, a hole-transporting layer, an electron-blocking layer, and an exciton-blocking layer. The diarylamino group (—NAr2) may be fused to form an aromatic heterocyclic group such as a carbazolyl group.
    Type: Application
    Filed: January 15, 2010
    Publication date: November 10, 2011
    Applicant: NIPPON STEEL CHEMICAL CO., LTD.
    Inventors: Mitsuru Suda, Takahiro Kai, Toshihiro Yamamoto
  • Patent number: 8053769
    Abstract: A transistor includes a first semiconductor layer associated with a first electrode; a second semiconductor layer associated with a second electrode; and a discontinuous layer between the first and second semiconductor layer. The discontinuous layer has a plurality of openings being formed on a non-uniform organic surface. Applications of the transistor include an inverter that operates at low supply voltage and high frequency.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: November 8, 2011
    Assignee: Academia Sinica
    Inventors: Chih-Wei Chu, Shiau-Shin Cheng
  • Patent number: 8049208
    Abstract: It is an object of the present invention, in a case of using a conductive material as part of an electrode for an organic transistor, to provide an organic transistor having a structure whose characteristics are not controlled by the work function of the conductive material. Moreover, it is other objects of the present invention to provide an organic transistor having favorable carrier mobility and to provide an organic transistor which is excellent in durability. A composite layer containing an organic compound and an inorganic material is used for an electrode for an organic field effect transistor, that is, at least part of one of a source electrode and a drain electrode in the organic field effect transistor.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: November 1, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Ryota Imahayashi, Shinobu Furukawa, Shunpei Yamazaki
  • Publication number: 20110240969
    Abstract: An organic light-emitting device including a substrate; a first electrode disposed on the substrate; a second electrode; an organic layer disposed between the first electrode and the second electrode, the organic layer including an emission layer and an electron transport layer, the electron transport layer including an anthracene-based compound and a quinolate-based compound; and at least one first layer disposed between the first electrode and the emission layer, the at least one first layer including a cyano group-containing compound.
    Type: Application
    Filed: April 1, 2011
    Publication date: October 6, 2011
    Inventors: Tae-Shick Kim, Kwan-Hee Lee, Dong-Heon Kim
  • Patent number: 8026664
    Abstract: To provide a novel fluoranthene derivative and an organic light emitting device having the fluoranthene derivative.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: September 27, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihito Saitoh, Keiji Okinaka, Satoshi Igawa, Jun Kamatani, Naoki Yamada, Masashi Hashimoto, Masanori Muratsubaki, Takao Takiguchi, Akihiro Senoo, Shinjiro Okada, Minako Nakasu
  • Patent number: 8026663
    Abstract: The present invention provides a novel compound represented by general formula (I) below, a method of manufacturing the same and an organic electroluminescent device employing the same: where R1 to R6 are independent of one another and are each a hydrogen atom or a substituent represented by general formula (II) below, and at least one of R1 to R6 is a substituent represented by general formula (II): —C?C—SiRaRbRc??(II) where Ra, Rb and Rc are independent of one another and are each an aliphatic hydrocarbon group having 1 to 10 carbon atoms or an aromatic hydrocarbon group.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: September 27, 2011
    Assignee: National University Corporation Gunma University
    Inventors: Hideyuki Matsumoto, Soichiro Kyushin, Keisuke Negishi, Youhei Ono, Manabu Uchida, Hidefumi Oomori
  • Patent number: 8021915
    Abstract: There is provided a field effect transistor having an organic semiconductor layer, including: an organic semiconductor layer containing at least porphyrin; and a layer composed of at least a polysiloxane compound, the layer being laminated on the organic semiconductor layer so as to be in intimate contact with the organic semiconductor layer. As a result, there can be provided a field effect transistor which enables an organic semiconductor layer having high crystallinity and high orientation to be formed and which exhibits a high mobility.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: September 20, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Daisuke Miura, Tomonari Nakayama, Toshinobu Ohnishi, Makoto Kubota, Akane Masumoto, Hidetoshi Tsuzuki, Makiko Miyachi
  • Patent number: 7973306
    Abstract: Disclosed in an anthracene derivative, an organic electronic device using the anthracene derivative, and an electronic apparatus including the organic electronic device. The anthracene derivative is capable of being used as a hole injecting material, a hole transporting material, an electron injecting material, an electron transporting material, and a light emitting material in an organic electronic device including an organic light emitting device. In particular, the anthracene derivative is capable of being used alone as a light emitting material and a host or a dopant in a host/dopant system. The organic electronic device is excellent in views of efficiency, driving voltage, life time, and stability.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: July 5, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Ji-Eun Kim, Jae-Chol Lee, Hye-Young Jang, Tae-Yoon Park, Sung-Kil Hong, Jun-Gi Jang, Jin-Kyoon Park, Hyun Nam, Kong-Kyeom Kim, Yeon-Hwan Kim
  • Patent number: 7952269
    Abstract: An organic light-emitting device is provided which has an optical output with a high efficiency, a high luminance and a long life and which includes a pair of electrodes including an anode and a cathode, and at least one layer comprising an organic compound provided between the pair of electrodes, wherein at least one layer having a light-emitting region of the at least one layer comprising the organic compound comprises a first compound represented by the general formula (1): and a second compound having a bandgap larger than a bandgap of the first compound.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: May 31, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keiji Okinaka, Masataka Yashima, Akihito Saitoh, Naoki Yamada, Akihiro Senoo, Kazunori Ueno
  • Patent number: 7935960
    Abstract: The invention relates to novel polyacene compounds, organic semiconducting formulations and layers comprising them, a process for preparing the formulation and layer and electronic devices, including organic field effect transistors (OFETs), comprising the same.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: May 3, 2011
    Assignee: Merck Patent GmbH
    Inventors: Remi Manouk Anemian, Stephen William Leeming
  • Patent number: 7906225
    Abstract: A substituted fluoranthene, a light emitting layer including the substituted fluoranthene, a diode including the substituted fluoranthene, and a visual display unit including the substituted fluoranthene.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: March 15, 2011
    Assignee: BASF Aktiengesellschaft
    Inventors: Florian Doetz, Reinhold Schwalm, Joachim Roesch
  • Patent number: 7906228
    Abstract: The present invention relates to novel compounds for electronic material, and organic electroluminescent devices or organic solar cells comprising the same. Specifically, the compounds for electronic material according to the invention are characterized in that they are represented by Chemical Formula (1): Since the compounds for electronic material, when being applied to an organic electroluminescent device, show good luminous efficiency and excellent life property of material, OLED's having very good operation life can be manufactured therefrom.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: March 15, 2011
    Assignee: Gracel Display Inc.
    Inventors: Mi Ae Lee, Young Jun Cho, Hyuck Joo Kwon, Bong Ok Kim, Sung Min Kim, Seung Soo Yoon
  • Patent number: 7888863
    Abstract: The present invention relates to novel organic electroluminescent compounds, and organic electroluminescent devices employing the same as electroluminescent material. Specifically, the organic electroluminescent compounds according to the invention are characterized in that they are represented by Chemical Formula (1): wherein, A and B independently represent CR7 or N, provided that both A and B cannot be CR7 or N at the same time; and X is O or S.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: February 15, 2011
    Assignee: Gracel Display Inc.
    Inventors: Hyo Nim Shin, Young Jun Cho, Hyuck Joo Kwon, Bong Ok Kim, Sung Min Kim, Seung Soo Yoon
  • Patent number: 7879463
    Abstract: Provided are a dimethylenecyclohexane compound represented by Formula 1 below, a method of preparing the same and an organic light emitting device comprising the dimethylenecyclohexane compound: The organic light emitting device comprising the dimethylenecyclohexane compound represented by Formula 1 has a low driving voltage, excellent efficiency and improved color purity.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: February 1, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Byoung-Ki Choi, O-Hyun Kwon, Che-Un Yang, Woon-Jung Paek, Myeong-Suk Kim, Dong-Woo Shin, Eun-Sil Han, Yi-Yeol Lyu, Sang-Hoon Park
  • Patent number: 7862907
    Abstract: A dimethylenecyclohexane compound represented by formula 1, a method of preparing the same, and an organic light emitting device using the dimethylenecyclohexane are provided. The dimethylenecyclohexane compound can improve the driving voltage, efficiency and color purity of the organic light emitting device.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: January 4, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Byoung-Ki Choi, Young-Hoon Kim, Jong-Jin Park, Myeong-Suk Kim, Sung-Hun Lee, Lyong-Sun Pu, Das Rupasree Ragini, Young-Hun Byun, Young-Mok Son, O-Hyun Kwon, Yi-Yeol Lyu
  • Patent number: RE44824
    Abstract: The present invention provides an organic electronic device using the compound of the formula (1) and a pyrene derivative having a new structure.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: April 8, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Dong Hoon Lee, Kong Kyeom Kim, Jae Soon Bae, Dae Woong Lee, Jung Bum Kim