Amine Compound Having At Least Two Aryl On Amine-nitrogen Atom (e.g., Triphenylamine) (epo) Patents (Class 257/E51.051)
  • Patent number: 9029843
    Abstract: An organic light-emitting element comprising: an anode; a cathode; banks; a functional layer between the anode and the cathode; and a hole injection layer between the anode and the functional layer. The functional layer includes one or more sublayers including a light-emitting sublayer defined by the banks and that contains an organic material. The hole injection layer comprises tungsten oxide, includes an occupied energy level that is approximately 1.8 electron volts to approximately 3.6 electron volts lower than a lowest energy level of a valence band of the hole injection layer in terms of a binding energy, has a surface facing the functional layer, and has a recessed structure such that a portion of the surface overlapping with the light-emitting sublayer is located closer to the anode than other portions. The recessed structure has a recessed portion whose inner surface is in contact with the functional layer.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: May 12, 2015
    Assignee: Joled Inc.
    Inventors: Kenji Harada, Seiji Nishiyama, Takahiro Komatsu, Takayuki Takeuchi, Satoru Ohuchi, Yoshiaki Tsukamoto, Shinya Fujimura, Kei Sakanoue
  • Patent number: 9012035
    Abstract: Disclosed is an organic electroluminescence device having a longer drive life. The organic electroluminescence device includes a light emitting layer which contains a luminescent dye and a host material having a nitrogen-containing aromatic heterocyclic ring. The luminescence resulting from the hole transport layer adjacent to the light emitting layer is less than one-hundredth of the luminescence resulting from the luminescent dye.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: April 21, 2015
    Assignees: Pioneer Corporation, Mitsubishi Chemical Corporation
    Inventors: Taishi Tsuji, Shin Kawami, Hideki Sato, Masayoshi Yabe
  • Patent number: 8999524
    Abstract: An organic light-emitting device includes a first electrode, a mixed organic layer, an emission layer, an electron transport layer, and a second electrode. The mixed organic layer contains a fluorene derivative and a pyrazine derivative, and the electron transport layer contains a lithium quinolate and a pyridine derivative.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: April 7, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Heon Kim, Tae-Shick Kim, Kwan-Hee Lee, Min-Seung Chun, Jung-Ha Son, Jae-Hyun Kwak, Mi-Kyung Kim, Choon-Woo Lim
  • 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: 8920942
    Abstract: Disclosed is an organic electroluminescent element having high luminous efficiency and long life. Also disclosed are a display device and an illuminating device respectively using such an organic electroluminescent element. Specifically disclosed is an organic electroluminescent element comprising an electrode and at least one or more organic layers on a substrate. This organic electroluminescent element is characterized in that at least one of the organic layers is a light-emitting layer containing a phosphorescent compound and a host compound, the phosphorescent compound has a HOMO of ?5.15 to ?3.50 eV and a LUMO of from ?1.25 to +1.00 eV, and the host compound has a 0-0 band of the phosphorescence spectrum at not more than 460 nm and a glass transition temperature of not less than 60° C.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: December 30, 2014
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Shinya Otsu, Hiroshi Kita, Eisaku Katoh
  • Patent number: 8872423
    Abstract: An electroluminescent device is provided with an anode, a cathode, and an organic layer having at least a light-emitting layer and held between the anode and the cathode. A layer with a nitrogen-containing heterocycle derivative therein is arranged between the anode and the light-emitting layer. The layer with the nitrogen-containing heterocycle derivative contained therein has a thickness greater than a hole supply layer arranged between the anode and the light-emitting layer.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: October 28, 2014
    Assignee: Sony Corporation
    Inventors: Emiko Kambe, Akifumi Nakamura, Yasunori Kijima, Hiroshi Yamamoto
  • Patent number: 8835018
    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: Grant
    Filed: March 25, 2008
    Date of Patent: September 16, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Sachiko Kawakami, Nobuharu Ohsawa
  • Patent number: 8809841
    Abstract: A light-emitting element which at least includes a monomolecular layer including a luminescent center material with a fluorescent light-emitting property, and a monomolecular layer including a host material with a carrier (electron or hole)-transport property and a band gap larger than a band gap (note that a band gap refers to the energy difference between a HOMO level and a LUMO level) of the luminescent center material, between a pair of electrodes, in which the monomolecular layer including the host material and the monomolecular layer including the luminescent center material share the same interface, is provided.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: August 19, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kunihiko Suzuki, Harue Osaka, Masahiro Takahashi
  • Patent number: 8758905
    Abstract: A quinoxaline derivative represented by a formula (1) is provided. In the formula (1), R9 and R10 and R11 and R12 are bonded to each other to form an aromatic ring, and Ar1 to Ar4 each independently represents an aryl group or a heterocyclic group.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: June 24, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoko Shitagaki, Atsushi Tokuda, Hiroko Abe, Ryoji Nomura, Satoshi Seo
  • Patent number: 8753757
    Abstract: An organic electroluminescence element comprising: an anode layer, a cathode layer, and an organic luminescence layer therebetween, the organic luminescence layer having a carbazole derivative with a glass-transition temperature of 110° C. or higher, and a phosphorescent dopant. This structure makes it possible to provide an organic electroluminescence element which can make use of the triplet exciton state of the carbazole derivative even at room temperature and which has a practical life and superior heat-resistance.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: June 17, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventor: Chishio Hosokawa
  • Patent number: 8614010
    Abstract: Provided are an organic electroluminescence device that not only provides high efficiency but also has a long lifetime, and an aromatic amine derivative that realizes the device. The organic electroluminescence device includes an aromatic amine derivative, including at least one substituent A having dibenzofuran and at least one substituent B selected from groups each having dibenzofuran or carbazole, in a molecule thereof, in which the substituent A and the substituent B include groups different from each other, and the substituent A and the substituent B are bonded to the same nitrogen atom, or different nitrogen atoms, in the molecule. The molecules of the aromatic amine derivative hardly crystallize, which improves a yield in the production of the organic electroluminescence device.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: December 24, 2013
    Assignee: Idemitsu Kosan, Co., Ltd.
    Inventors: Nobuhiro Yabunouchi, Masahiro Kawamura, Tomoki Kato
  • Patent number: 8609257
    Abstract: The organic electroluminescence device has, on a substrate thereof, a pair of electrodes and at least one organic layer including a light emitting layer between the electrodes, wherein the light emitting layer contains a phosphorescent complex material containing a specific monoanionic bidentate ligand and the device contains, in a layer sandwiched between the light emitting layer and a cathode, a compound represented by the following formula (1): (Cz)p-L-(A)q??(1) wherein, Cz represents a substituted or unsubstituted arylcarbazolyl or carbazolylaryl, L represents a single bond or a substituted or unsubstituted arylene, cycloalkylene, or aromatic heterocycle, A represents a substituted or unsubstituted nitrogen-containing 6-membered aromatic heterocycle, and each of p and q independently represents an integer from 1 to 6.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: December 17, 2013
    Assignee: UDC Ireland Limited
    Inventors: Toshihiro Ise, Tetsu Kitamura, Saki Takada, Toru Watanabe
  • Patent number: 8581262
    Abstract: The present invention relates to compositions comprising functionalized or un-functionalized multi cyclic hydrocarbons and functional organic compounds, which can be used in different electronic devices. The invention further relates to an electronic device comprising one or more organic functional layers, wherein at least one of the layers comprises at least one functionalized or un-functionalized multi cyclic hydrocarbon. Another embodiment of the present invention relates to a formulation comprising functionalized or un-functionalized multi cyclic hydrocarbons, from which a thin layer comprising at least one functionalized or un-functionalized multi cyclic hydrocarbon can be formed.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: November 12, 2013
    Assignee: Merck Patent GmbH
    Inventors: Junyou Pan, Thomas Eberle, Herwig Buchholz
  • Patent number: 8518559
    Abstract: There is provided conductive organic arylamine compounds. The compounds may be prepared as films and such films may be used as a hole transporting layer, an emissive layer or an electron transporting layer in organic light emitting devices.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: August 27, 2013
    Assignee: Agency for Science, Technology and Research
    Inventors: Zhikuan Chen, Changgua Zhen
  • Patent number: 8475938
    Abstract: Disclosed is an organic EL device element having high external quantum efficiency and long life time. A lighting device and a display device each using the organic EL device element are also disclosed. The organic EL element comprises plural organic compound layers including a light-emitting layer and at least one hole transport layer, interposed between an anode and a cathode, and a phosphorescent light-emitting compound contained in the light-emitting layer emits light. The organic EL device is characterized in that at least one hole-transport layer contains two or more polymerizable compounds represented by general Formula (1) or two or more polymer compounds having a structural unit derived from a compound. In the Formula (1) L1 represents a divalent bonding group, Ar1 through Ar4 represent an aromatic group, provided that at least one of Ar1 through Ar4 represents a polymerizable group as a substituent.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: July 2, 2013
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Noriko Yasukawa, Rie Katakura, Hideo Taka
  • Patent number: 8470454
    Abstract: A material for an organic photoelectric device and an organic photoelectric device including the same, the material including an asymmetric compound represented by the following Chemical Formula 1: wherein, in Chemical Formula 1, Ar1 is hydrogen or a substituted or unsubstituted aryl, provided that when Ar1 is a substituted aryl having a substituent, Ar2 is not the same as the substituent of Ar1, Ar2 and Ar3 are each independently a substituted or unsubstituted carbazolyl, a substituted or unsubstituted C2 to C30 heteroaryl, a substituted or unsubstituted C2 to C30 arylamine, or a substituted or unsubstituted C2 to C30 heteroarylamine, L1 and L2 are each independently a substituted or unsubstituted phenylene, a substituted or unsubstituted naphthylene, or a substituted or unsubstituted anthracene, and m and n are each independently integers of 1 to 4.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: June 25, 2013
    Assignee: Cheil Industries, Inc.
    Inventors: Nam-Soo Kim, Myeong-Soon Kang, Ho-Kuk Jung, Eui-Su Kang, Young-Sung Park, Mi-Young Chae, Jin-Seong Park
  • Patent number: 8427046
    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: May 16, 2006
    Date of Patent: April 23, 2013
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Masayoshi Yabe, Masayo Fugono, Koichiro Iida, Masako Takeuchi, Tomoyuki Ogata
  • Patent number: 8420227
    Abstract: An object of the present invention is to provide a composite material formed of an organic compound and an inorganic compound, and has an excellent carrier transporting property, an excellent carrier injecting property to the organic compound, as well as excellent transparency. A composite material of the present invention for achieving the above object is a composite material of an organic compound represented in the general formula below, and an inorganic compound. For the inorganic compound, an oxide of a transition metal, preferably an oxide of a metal belonging to groups 4 to 8 of the periodic table, in particular vanadium oxide, tantalum oxide, molybdenum oxide, tungsten oxide, rhenium oxide, and ruthenium oxide, can be used.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: April 16, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yuji Iwaki, Satoshi Seo, Daisuke Kumaki
  • Patent number: 8420234
    Abstract: An organic electroluminescent device is provided and includes: a pair of electrodes; an organic layer including a light emitting layer between the electrodes. The organic layer contains a compound represented by formula (I). In formula (I), R11, R12, and R13 each independently represents a C1-6 alkyl group, Q1 represents a carbon atom or a silicon atom, R14 represents a hydrogen atom or -Q2(R16)(R17)R18 in which Q2 represents a carbon atom or a silicon atom and R16, R17, and R18 each independently represents a C1-6 alkyl group, R15 represents a hydrogen atom, a substituted or unsubstituted alkyl group, a cyano group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group, and n stands for 1 or 2.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: April 16, 2013
    Assignee: UDC Ireland Limited
    Inventors: Ikuo Kinoshita, Akira Takeda, Toshihiro Ise, Hiroo Takizawa, Masaaki Inoue, Takashi Kato
  • Patent number: 8420232
    Abstract: Disclosed are Binaphthyl-Arylamine Polymers having Formula I: In the Formula: Ar1 is an arylene; Ar2 is an aryl group; Ar3 is an arylene; Binap is a binaphthyl moiety; M is a conjugated moiety; and x, y and z are mole fractions such that x+y+z=1.0, with the proviso that x and y are not zero.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: April 16, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Kyung-Ho Park, Nora Sabina Radu
  • Patent number: 8362474
    Abstract: It is an object to provide an organic field effect transistor including an electrode which can reduce an energy barrier at an interface between a conductive layer and a semiconductor layer, and a semiconductor device including the organic field effect transistor. A composite layer containing an organic compound and an inorganic compound is provided in at least part of one of a source electrode and a drain electrode in an organic field effect transistor, and as the organic compound, a carbazole derivative represented by the general formula (1) is used. By providing the composite layer in at least part of one of the source electrode and the drain electrode, an energy barrier at an interface between a conductive layer and a semiconductor layer can be reduced.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: January 29, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shinobu Furukawa, Ryota Imahayashi, Kaoru Kato
  • Patent number: 8343640
    Abstract: A material for an organic photoelectric device includes a compound represented by the following Formula 1:
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: January 1, 2013
    Assignee: Cheil Industries, Inc.
    Inventors: Nam-Soo Kim, Eun-Sun Yu, Young-Hoon Kim, Mi-Young Chae
  • Patent number: 8318323
    Abstract: Provided are a polycyclic compound of a compound having such a structure that two benzene rings bond to a central benzene ring each other to form a fused ring and another fused ring bonds to a terminal thereof, and an organic electroluminescence device including one or more organic thin film layers containing a light emitting layer between a cathode and an anode, in which at least one of the organic thin film layers includes the polycyclic compound of the present invention. The organic electroluminescence device has high luminous efficiency, no defect in pixels, and long lifetime. In addition, provided is a polycyclic compound realizing the organic electroluminescence device.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: November 27, 2012
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Tomoki Kato, Masaki Numata, Kazuki Nishimura, Toshihiro Iwakuma, Chishio Hosokawa, Kei Yoshida
  • Patent number: 8304094
    Abstract: It is an object to provide a light-emitting element with high luminous efficiency by using a hole transporting substance with a sufficiently high T1 level. Further, it is another object to provide a light-emitting device and an electronic appliance with low power consumption by using a hole transporting substance with a sufficiently high T1 level. The present invention provides a light-emitting element which has a first layer containing a spiro-9,9?-bifluorene derivative in which one amino group is combined and a second layer containing a phosphorescent compound between an anode and a cathode.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: November 6, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Nobuharu Ohsawa, Sachiko Kawakami, Harue Osaka
  • Patent number: 8264140
    Abstract: An organic electroluminescence element includes a pair of electrodes composed of an anode and a cathode, at least one of which is transparent or semitransparent, and one or more organic compound layers disposed between the pair of electrodes, wherein at least one of the organic compound layers comprises at least one charge-transporting polyester consisting of repeating units containing, as a partial structure, at least one structure represented by the following formula (I-1).
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: September 11, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Koji Horiba, Hidekazu Hirose, Tadayoshi Ozaki, Yohei Nishino, Mieko Seki, Takeshi Agata, Akira Imai, Katsuhiro Sato, Kiyokazu Mashimo, Hirohito Yoneyama, Toru Ishii, Daisuke Okuda
  • Patent number: 8257837
    Abstract: An organic light-emitting device in which at least one organic layer including a light-emitting layer is sandwiched between an anode and a cathode and a phosphorescent compound in the light-emitting layer emits light.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: September 4, 2012
    Assignee: Showa Denko K.K.
    Inventors: Tetsuhiko Yamaguchi, Yoshiaki Takahashi
  • Patent number: 8252433
    Abstract: The present invention provides a novel organic compound having excellent heat resistance. By using the novel organic compound, a light-emitting device and an electronic device having excellent heat resistance can be provided. A quinoxaline derivative represented by the general formula (1) is provided. Since the quinoxaline derivative represented by the general formula (1) has excellent heat resistance, when it is used for a light-emitting element, a light-emitting device using the light-emitting element also have excellent heat resistance. Further, electronic devices having excellent heat resistance can be provided.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: August 28, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masakazu Egawa, Nobuharu Ohsawa
  • Patent number: 8247089
    Abstract: Provided is an organic EL element, which has a controlled emission wavelength, a high emission efficiency and a long emission life. An organic EL element material for such organic EL element, a lighting device, and a display device using such organic EL element are also provided.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: August 21, 2012
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Shinya Otsu, Eisaku Katoh
  • Patent number: 8241939
    Abstract: A method for manufacturing a biosensor includes forming a silicon nanowire channel, etching a first conductivity-type single crystalline silicon layer which is a top layer of a Silicon-On-Insulator (SOI) substrate to form a first conductivity-type single crystalline silicon line pattern, doping both sidewalls of the first conductivity-type single crystalline silicon line pattern with impurities of a second conductivity-type opposite to the first conductivity-type to form a second conductivity-type channel, forming second conductivity-type pads for forming electrodes at both ends of the first conductivity-type single crystalline silicon line pattern, forming, in an undoped region of the first conductivity-type single crystalline silicon line pattern, a first electrode for applying a reverse-bias voltage to insulate the first conductivity-type single crystalline silicon line pattern and the second conductivity-type channel from each other, and forming second electrodes for applying a bias voltage across the sec
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: August 14, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chan Woo Park, Chang Geun Ahn, Jong Heon Yang, In Bok Baek, Chil Seong Ah, Han Young Yu, An Soon Kim, Tae Youb Kim, Moon Gyu Jang, Myung Sim Jun
  • Patent number: 8231984
    Abstract: Target is to provide an organic compound material having a bipolar character. A quinoxaline derivative represented by a general formula (1) is provided. In the formula, R1-R12 each independently represents a hydrogen atom, a halogen atom, a lower alkyl group, an alkoxy group, an acyl group, a nitro group, a cyano group, an amino group, a dialkylamino group, a diarylamino group, a vinyl group, an aryl group, or a heterocyclic residue group. R9 and R10, R10 and R11, and R11 and R12 are each independent or respectively mutually bonded to form an aromatic ring. Ar1-Ar4 each independently represents an aryl group or a heterocyclic residue group. Ar1, Ar2, Ar3 and Ar4 are each independent or Arl and Ar2, and Ar3 and Ar4 are respectively mutually bonded directly, or Ar1 and Ar3, and Ar3 and Ar4 are bonded via oxygen (O), sulfur (S) or a carbonyl group.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: July 31, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoko Shitagaki, Atsushi Tokuda, Hiroko Abe, Ryoji Nomura, Satoshi Seo
  • Patent number: 8198801
    Abstract: The present invention relates to a novel compound that can significantly improve the lifespan, efficiency and thermal stability of an organic light emitting device, and to an organic electroluminescence device or light emitting device comprising the compound in an organic compound layer is also disclosed.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: June 12, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Ji Eun Kim, Jae Chol Lee, Kong Kyeom Kim, Jae Soon Bae, Jun Gi Jang, Sang Young Jeon, Min Soo Kang, Wook Dong Cho, Byung Sun Jeon, Yeon Hwan Kim
  • Patent number: 8192847
    Abstract: Disclosed is a novel organic EL device material. Also disclosed are an organic EL device, an illuminating device and a display each having high emission efficiency and long emission lifetime, which are obtained by employing the organic EL device material.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: June 5, 2012
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Shinya Otsu, Eisaku Katoh
  • Patent number: 8120243
    Abstract: A material for an organic photoelectric device, the material including a compound represented by the following Chemical Formula 1: wherein, in Chemical Formula 1, HTU and HTU? are independently hole transporting units, and R1 to R3 are independently a substituent selected from the group of hydrogen, a substituted or unsubstituted C6 to C30 aryl, a substituted or unsubstituted C2 to C30 heteroaryl, and a substituted or unsubstituted C1 to C30 alkyl, wherein the term “substituted” refers to one substituted with a halogen, a C1 to C30 alkyl, a C1 to C30 haloalkyl, a C6 to C30 aryl, a C2 to C30 heteroaryl, a C1 to C20 alkoxy, or combinations thereof.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: February 21, 2012
    Assignee: Cheil Industries, Inc.
    Inventors: Young-Hoon Kim, Eun-Sun Yu, Nam-Soo Kim, Mi-Young Chae
  • Patent number: 8114530
    Abstract: Provided is a material containing at least one phosphorescent metal complex, and a compound represented by the following formula (1): wherein at least one of R1 to R3 is a 9-carbazolyl group which is optionally substituted or an azacarbazolyl group having 2 to 5 nitrogen atoms which is optionally substituted. The material for the organic electroluminescence device may be used as a host material or a hole transporting material. Also provided is an organic electroluminescence device which has an organic thin film layer that contains the material, and exhibits a high emitting efficiency, causes little pixel defects, is excellent in heat resistance, and has a long lifetime.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: February 14, 2012
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Toshihiro Iwakuma, Jun Endo, Masaki Numata, Kenichi Fukuoka
  • Patent number: 8102113
    Abstract: There is provided a quinoxaline-containing compound represented by the following formula (I); wherein Ar1 represents a substituted or unsubstituted monovalent aromatic group; and R1 represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: January 24, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Koji Horiba, Hidekazu Hirose, Takeshi Agata
  • Publication number: 20110309341
    Abstract: A polymer compound comprising a constituent unit represented by the following formula (1a): wherein ring A and ring B represent an aromatic hydrocarbon ring. R1 is a group represented by the following formula (2). R2 represents an aryl group or a monovalent aromatic heterocyclic group. wherein Ar1 represents an arylene group or a divalent group comprising two or more directly bonded arylene groups; Ar4 and Ar5 represent an aryl group or a monovalent aromatic heterocyclic group; Ar2 and Ar3 represent an arylene group or a divalent aromatic heterocyclic group; R6 represents a hydrogen atom, an alkyl group, an aryl group or a monovalent aromatic heterocyclic group.
    Type: Application
    Filed: November 18, 2009
    Publication date: December 22, 2011
    Applicants: SUMATION CO., LTD., SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kazuei Ohuchi, Tomoya Nakatani
  • Patent number: 8049206
    Abstract: It is an object to provide an organic field effect transistor including an electrode which can reduce an energy barrier at an interface between a conductive layer and a semiconductor layer, and a semiconductor device including the organic field effect transistor. A composite layer containing an organic compound and an inorganic compound is provided in at least part of one of a source electrode and a drain electrode in an organic field effect transistor, and as the organic compound, a carbazole derivative represented by the general formula (1) is used. By providing the composite layer in at least part of one of the source electrode and the drain electrode, an energy barrier at an interface between a conductive layer and a semiconductor layer can be reduced.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: November 1, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shinobu Furukawa, Ryota Imahayashi, Kaoru Kato
  • 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
  • Patent number: 8043723
    Abstract: An organic EL device includes: a pair of electrodes; and an organic layer sandwiched between the pair of electrodes. The organic layer includes a compound including layer, and the compound including layer includes a compound of 1,3-bis[N,N-bis{(4?-methylbiphen-4-yl)}amino]-5-N,N-bis(4-methylphenyl) aminobenzene. The heat resistance and the vapor deposition property of the organic layer containing the above tertiary amine compound can be improved.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: October 25, 2011
    Assignee: Denso Corporation
    Inventors: Tetsuya Kato, Kazushige Kojima
  • 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: 8026665
    Abstract: Disclosed are a novel deuterated aryl amine compound capable of enhancing thermal stability, hole transporting capability, luminescence efficiency, etc. of an organic light emitting diode at the time of being used as a hole-injecting layer, a preparation method thereof, and an organic light emitting diode using the same.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: September 27, 2011
    Assignee: Doosan Corporation
    Inventors: Kyoung-soo Kim, Tae-hyung Kim, Kyu-man Youn, Hyeon-jin Seo, Myung-soo Ko, Sang-hoon Lee, Dong-wan Ryu, Yeong-eun Kim
  • Patent number: 7990046
    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: March 13, 2003
    Date of Patent: August 2, 2011
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Toshihiro Iwakuma, Chishio Hosokawa, Hidetsugu Ikeda, Seiji Tomita, Takashi Arakane
  • Patent number: 7964891
    Abstract: The present invention provides a light-emitting element having a structure in which the drive voltage is comparatively low and a light-emitting element in which the increase in the drive voltage over time is small. Further, the present invention provides a display device in which the drive voltage and the increase in the drive voltage over time are small and which can resist long-term use. A layer in contact with an electrode in a light-emitting element is a layer containing a P-type semiconductor or a hole-generating layer such as an organic compound layer containing a material having electron-accepting properties. The light-emitting layer is sandwiched between the hole-generating layers, and an electron-generating layer is sandwiched between the light-emitting layer and the hole-generating layer on a cathode side.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: June 21, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Daisuke Kumaki, Satoshi Seo
  • 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: 7952089
    Abstract: An object of the invention is to provide a composite material with which a light emitting element can be manufactured to have superior heat resistance, and another is to have durability high enough to be driven stably for a long time. Another object is to provide a composite material with which a light emitting element can be manufactured to achieve both objects. Still another object is to provide a composite material with which a light emitting element can be manufactured to achieve the above objects and to have little increase in power consumption. One feature of a composite material of the invention which can achieve the above objects is to comprise an organic-inorganic hybrid material in which an organic group is covalently bonded to silicon in a skeleton composed of siloxane bonds, and a material which is capable of accepting or donating electrons from or to the organic group.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: May 31, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Ryoji Nomura, Takako Takasu
  • Patent number: 7939183
    Abstract: Provided is a material for an organic electroluminescence device, which is composed of a compound having a specific structure; and is capable of providing an organic electroluminescence device having a high luminous efficiency, excellent heat resistance, and a long lifetime while having no pixel defects, and an organic electroluminescence device using the same. The organic electroluminescence device comprises an organic thin film layer composed of one or more layers including at least a light-emitting layer and sandwiched between a cathode and an anode. In the organic electroluminescence device, at least one layer of the organic thin film layer comprises the material for an organic electroluminescence device.
    Type: Grant
    Filed: December 24, 2004
    Date of Patent: May 10, 2011
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Toshihiro Iwakuma, Hisayuki Kawamura, Hidetsugu Ikeda, Chishio Hosokawa, Takashi Arakane, Hiroaki Nakamura
  • Patent number: 7923128
    Abstract: The invention provides an organic electroluminescent device having at least a light-emitting layer containing a light-emitting material and a host material, a hole injection-promoting layer, and a hole-transporting layer containing a hole-transporting material in this order between a pair of electrodes, in which the hole injection-promoting layer contains a hole-transporting material and has a thickness of 0.1 nm to 0.3 nm, and the relationship Ip1<Ip2<Ip3 is satisfied, when Ip1 is defined as the ionization potential of the hole-transporting material of the hole-transporting layer, Ip2 is defined as the ionization potential of the hole-transporting material of the hole injection-promoting layer, and Ip3 is defined as the ionization potential of the host material. Accordingly, the invention provides an electroluminescent device excellent in both light emitting efficiency and operation durability.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: April 12, 2011
    Assignee: Fujifilm Corporation
    Inventor: Fumito Nariyuki
  • Patent number: 7919773
    Abstract: An object of the present invention is to provide a novel aromatic amine compound, and a light-emitting element, a light-emitting device, and an electronic appliance with high luminous efficiency. An aromatic amine compound expressed by General Formula (1) and a light-emitting element, a light-emitting device, and an electronic appliance formed using the aromatic amine compound expressed by General Formula (1) are provided. By the use of the aromatic amine compound expressed by General Formula (1), the light-emitting element, the light-emitting device, and the electronic appliance can have high luminous efficiency.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: April 5, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Sachiko Kawakami, Nobuharu Ohsawa, Harue Nakashima, Satoko Shitagaki
  • Patent number: 7897964
    Abstract: It is an object of the present invention to provide a material having a high Tg and a wide energy gap. The present invention provides a spirofluorene derivative represented by General Formula 1. (In the formula, R1 is any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, or a group represented by General Formula 2. Each of R2 and R3 is either hydrogen or an alkyl group having 1 to 4 carbon atoms and may be identical or different. R4 is an aryl group having 6 to 15 carbon atoms. Each of R5 and R6 is any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, or an aryl group having 6 to 15 carbon atoms and may be identical or different.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: March 1, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Sachiko Kawakami, Harue Nakashima
  • 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