For Radiation-sensitive Or Light-emitting Organic Solid-state Device With Potential Or Surface Barrier (epo) Patents (Class 257/E51.026)
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Patent number: 8771845Abstract: Disclosed herein are compounds represented by Formula 1, wherein R1, Ar1, X, Ar2, Ar3, and Het are described herein. Compositions and light-emitting devices related thereto are also disclosed.Type: GrantFiled: June 24, 2013Date of Patent: July 8, 2014Assignee: Nitto Denko CorporationInventors: Shijun Zheng, Jensen Cayas, Sheng Li, Amane Mochizuki, Hyun Sik Chae, Brett T. Harding
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Patent number: 8771841Abstract: A problem of the invention is to provide an organic EL device having a high efficiency, a low driving voltage and a long life, by combining various materials for organic EL device, which are excellent in an injection or transportation performance of holes or electrons, and in stability and durability in a thin film, so as to enable the respective materials to effectively reveal their characteristics. The invention relates to an organic electroluminescent device including at least an anode electrode, a hole-injecting layer, a hole-transporting layer, an emitting layer, an electron-transporting layer and a cathode electrode in this order, in which the hole-injecting layer contains an arylamine compound having, in its molecule, a structure in which three or more triphenylamine structures are connected through a single bond or a hetero atom-free divalent group; and the hole-transporting layer contains an arylamine compound having two triphenylamine structures in its molecule.Type: GrantFiled: May 15, 2009Date of Patent: July 8, 2014Assignee: Hodogaya Chemical Co., Ltd.Inventors: Norimasa Yokoyama, Shigeru Kusano, Shuichi Hayashi
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Patent number: 8771840Abstract: Provided are a heterocyclic compound which emits blue light and is represented by General Formula (G1) below, and a light-emitting element, a light-emitting device, an electronic device and a lighting device which are formed using the heterocyclic compound represented by General Formula (G1) below. The use of the heterocyclic compound represented by General Formula (G1) makes it possible to provide a light-emitting element which has high emission efficiency, and also a light-emitting device, an electronic device and a lighting device which have reduced power consumption.Type: GrantFiled: November 9, 2010Date of Patent: July 8, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hiroki Suzuki, Tsunenori Suzuki, Satoshi Seo
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Patent number: 8772082Abstract: To provide a light-emitting element, a light-emitting device, and an electronic device each formed using the organometallic complex represented by General Formula (G1) as a guest material and a low molecule compound as a host material.Type: GrantFiled: June 7, 2013Date of Patent: July 8, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hideko Inoue, Nobuharu Ohsawa, Satoshi Seo
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Patent number: 8766238Abstract: The present invention relates to light-emitting devices and in particular organic light-emitting devices (OLEDs). In particular, the invention relates to emitter materials in which charged metal complexes are bonded to a polymer by electrostatic interactions.Type: GrantFiled: January 17, 2008Date of Patent: July 1, 2014Assignee: Merck Patent GmbHInventors: Hartmut Yersin, Uwe Monkowius, Dominik Pentlehner
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Patent number: 8759819Abstract: An organic electroluminescence device includes an anode, a cathode, and an organic thin-film layer interposed between the anode and the cathode. The organic thin-film layer includes a phosphorescent-emitting layer containing a host and a phosphorescent dopant, and an electron transporting layer that is provided closer to the cathode than the phosphorescent-emitting layer. The host contains a substituted or unsubstituted polycyclic fused aromatic skeleton.Type: GrantFiled: November 21, 2008Date of Patent: June 24, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Kenichi Fukuoka, Chishio Hosokawa, Jun Endo, Nobuhiro Yabunouchi, Hiroshi Yamamoto
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Patent number: 8748014Abstract: The present invention relates to a compound having a substituted anthracene ring structure and a pyridoindole ring structure, which is represented by the following general formula (1) or the following general formula (2); and an organic electroluminescent device having a pair of electrodes and at least one organic layer interposed therebetween, in which the compound having a substituted anthracene ring structure and a pyridoindole ring structure, which is represented by the following general formula (1) or the following general formula (2), is used as a constituent material of the aforementioned at least one organic layer.Type: GrantFiled: November 10, 2010Date of Patent: June 10, 2014Assignee: Hodogaya Chemical Co., Ltd.Inventors: Norimasa Yokoyama, Shuichi Hayashi, Kouki Kase, Hiroshi Ohkuma, Eiji Takahashi, Daizou Kanda
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Patent number: 8748012Abstract: Novel aryl silicon and aryl germanium host materials are described. These compounds improve OLED device performance when used as hosts in the emissive layer of the OLED.Type: GrantFiled: May 25, 2011Date of Patent: June 10, 2014Assignee: Universal Display CorporationInventors: Lichang Zeng, Alexey B. Dyatkin, Gregg Kottas
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Patent number: 8748874Abstract: A protein photoelectric conversion device including a gold electrode; and a substance selected from the group consisting of a metal-substituted cytochrome b562, a zinc chlorin cytochrome b562, a derivative thereof, and a variant thereof immobilized on the gold electrode.Type: GrantFiled: December 28, 2011Date of Patent: June 10, 2014Assignee: Sony CorporationInventors: Seiji Yamada, Yuichi Tokita, Yoshio Goto, Wei Luo, Satoshi Nakamaru
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Patent number: 8741446Abstract: Organic compounds and organic electroluminescent devices employing the same are provided.Type: GrantFiled: December 21, 2010Date of Patent: June 3, 2014Assignee: Industrial Technology Research InstituteInventors: Jin-Sheng Lin, Meng-Ting Lee, Heh-Lung Huang
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Patent number: 8741449Abstract: An anthracene derivative represented by the general formula (G1) is provided. The anthracene derivative represented by the general formula (G1) is a novel anthracene derivative having a wide band gap. Further, the anthracene derivative has a large energy gap and can be very suitably used as a material for a light-emitting element which exhibits blue light emission.Type: GrantFiled: June 8, 2012Date of Patent: June 3, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Sachiko Kawakami, Nobuharu Ohsawa, Satoshi Seo
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Patent number: 8735875Abstract: Provided is a light-emitting element having light emitting sections (17) that are distributed on a transparent substrate (11). Specifically, an electroluminescence element (10) includes the substrate having a bored part (16b) which is formed by recessing, below the light emitting sections, the surface of the substrate on a light emitting section side. By this configuration, the light-emitting element has a high light-emitting efficiency and exhibits required light distribution characteristics by controlling a direction of emitted light.Type: GrantFiled: May 26, 2010Date of Patent: May 27, 2014Assignee: Showa Denko K.K.Inventors: Masaru Tajima, Kanjiro Sako, Katsumasa Hirose, Kunio Kondo
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Patent number: 8735879Abstract: The invention provides an organic light-emitting diode which includes at least two electroluminescent layers (ELR, ELB), both of which are fluorescent or phosphorescent and emit at different wavelengths, as well as a hole- and electron-conducting buffer layer (T) arranged between the electroluminescent layers. The buffer layer is a bi-layer having an electron-transport layer (T2) and a hole-transport layer (T1), each one of the hole- and electron-transport layers being made of one or more materials in which the HOMO level(s) are comprised between or equal to the HOMO levels of the electroluminescent layers, and in which the LUMO levels are between or equal to the LUMO levels of said electroluminescent layers, with a tolerance of 0.3 eV.Type: GrantFiled: April 4, 2011Date of Patent: May 27, 2014Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: David Vaufrey, Frédéric Sermet
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Patent number: 8729532Abstract: The present invention provides a light-absorbing material capable of providing high photoelectric conversion efficiency when applied to a photoelectric conversion element. The light-absorbing material of the present invention has a structure represented by Formula (1) below: X—Y??(1) (wherein X represents a light-absorbing site, and Y represents a radical site that becomes a radical when in an oxidized state and/or when in a reduced state, and is capable of repeated oxidation-reduction).Type: GrantFiled: May 21, 2010Date of Patent: May 20, 2014Assignees: Panasonic Corporation, Waseda UniversityInventors: Takashi Sekiguchi, Hiroyuki Nishide, Michio Suzuka, Takeyuki Yamaki, Kenichi Oyaizu, Fumiaki Kato, Satoko Kambe
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Patent number: 8728631Abstract: 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: GrantFiled: September 10, 2004Date of Patent: May 20, 2014Assignee: Sumitomo Chemical Company, LimitedInventors: Makoto Kitano, Yoshiaki Tsubata
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Patent number: 8716702Abstract: An organic light-emitting display device includes: a buffer layer including sequentially stacked materials having different refractive indexes on a substrate; source and drain electrodes on the buffer layer; a first active layer of a thin film transistor between the source and drain electrodes, and a second active layer spaced from the first active layer at a same layer as and including a same material as the first active layer; a first insulation layer on the buffer layer, the source and drain electrodes, the first and second active layers, and including sequentially stacked materials having different refractive indexes; a first gate electrode corresponding to a center region of the first and second active layers with the first insulation layer therebetween, and a pixel electrode at a same layer as and comprising a same material as the first gate electrode; and a second gate electrode on the first gate electrode.Type: GrantFiled: August 12, 2011Date of Patent: May 6, 2014Assignee: Samsung Display Co., Ltd.Inventor: Sung-Ho Kim
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Patent number: 8716698Abstract: An organic electroluminescent device comprising at least an anode electrode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer and a cathode electrode in this order, wherein the hole injection layer comprises an arylamine compound having at least three triphenylamine structures in the molecule, the hole transport layer comprises an arylamine compound having two triphenylamine structures in the molecule, and the electron transport layer comprises a substituted bipyridyl compound represented by the following general formula (1):Type: GrantFiled: June 9, 2009Date of Patent: May 6, 2014Assignee: Hodogaya Chemical Co., Ltd.Inventors: Norimasa Yokoyama, Shigeru Kusano, Shuichi Hayashi
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Patent number: 8710493Abstract: An organic electroluminescence device includes an anode, a cathode and layers between the anode and the cathode, the layers at least including a hole transporting layer, a first emitting layer, a second emitting layer and an electron transporting layer, in which the first emitting layer includes a first host material and a first luminescent material and the second emitting layer is continuously formed on the first emitting layer near the cathode and includes a second host material and a second luminescent material. The second host material is a monoazine derivative, a diazine derivative, or a triazine derivative. The first and second luminescent materials are different metal complexes.Type: GrantFiled: May 23, 2011Date of Patent: April 29, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuki Nishimura, Toshinari Ogiwara, Hitoshi Kuma, Kenichi Fukuoka, Chishio Hosokawa, Yukitoshi Jinde
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Patent number: 8710495Abstract: Disclosed is a light-emitting element having a light-emitting layer which includes a first layer, a second layer, and a third layer provided in this order on an anode side between the anode and a cathode. The first layer has a hole-transporting property, the second layer has a bipolar property, and the third layer has an electron-transporting property, wherein the first layer contains a first fluorescent compound and a hole-transporting organic compound, the second layer contains a phosphorescent compound and a host material, and the third layer contains a second fluorescent compound and an electron-transporting organic compound. The light-emitting layer is also arranged so that the triplet-excitation energy of both the hole-transporting organic compound and the electron-transporting organic compound are greater than that of the host material.Type: GrantFiled: October 4, 2012Date of Patent: April 29, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Seo, Kaoru Ikeda
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Patent number: 8703300Abstract: 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: GrantFiled: March 14, 2006Date of Patent: April 22, 2014Assignee: Konica Minolta Holdings, Inc.Inventors: Yoshiyuki Suzuri, Akira Kawakami, Hiroshi Kita
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Patent number: 8704213Abstract: A photoelectric conversion device having: a pair of electrodes; a photoelectric conversion layer sandwiched between the pair of electrodes; and at least one electron blocking layer provided between one electrode of the pair of electrodes and the photoelectric conversion layer, wherein the photoelectric conversion layer contains at least one organic material, and the at least one electron blocking layer has a mixed layer containing fullerene or fullerene derivatives.Type: GrantFiled: October 26, 2011Date of Patent: April 22, 2014Assignee: FUJIFILM CorporationInventor: Hideyuki Suzuki
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Patent number: 8703304Abstract: An aromatic amine derivative having a specific structure. An organic electroluminescence device which is composed of one or more organic thin film layers sandwiched between a cathode and an anode, wherein at least one of the organic thin film layers, especially a hole transporting layer, contains the aromatic amine derivative. The aromatic amine derivative has at least one substituted or unsubstituted dibenzofuran skeleton and at least one substituted or unsubstituted terphenylene skeleton. Because the molecules in the aromatic amine derivate hardly crystallize, organic electroluminescence devices improving their production yield and having prolonged lifetime are provided.Type: GrantFiled: March 7, 2012Date of Patent: April 22, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventor: Nobuhiro Yabunouchi
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Patent number: 8697255Abstract: 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: GrantFiled: June 26, 2008Date of Patent: April 15, 2014Assignee: BASF SEInventors: Nicolle Langer, Klaus Kahle, Christian Lennartz, Oliver Molt, Evelyn Fuchs, Jens Rudolph, Christian Schildknecht, Soichi Watanabe, Gerhard Wagenblast
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Publication number: 20140097406Abstract: A liquid composition (e.g., inkjet fluid) for forming an organic layer of an organic electronic device (e.g., an OLED). The liquid composition comprises a small molecule organic semiconductor material mixed in a solvent in which the solvent compound has the following formula: wherein R1 is C1-6 alkyl; R2 is C1-6 alkyl; and R3 is one or more optional substitutions independently selected from C1-6 alkyl and lower aryl.Type: ApplicationFiled: October 4, 2012Publication date: April 10, 2014Applicant: UNIVERSAL DISPLAY CORPORATIONInventors: Kwang-Ohk CHEON, Angang DONG, Michael INBASEKARAN, Suman LAYEK
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Patent number: 8692240Abstract: A blue color photoelectric conversion film includes: a p-type layer formed by depositing tetracene; a p,n-type layer formed by co-depositing tetracene and naphthalene-tetracarboxylic-dianhydride (“NTCDA”) on the p-type layer; and an n-type layer formed by depositing NTCDA on the p,n-type layer.Type: GrantFiled: November 2, 2012Date of Patent: April 8, 2014Assignees: Samsung Electronics Co., Ltd., Osaka UniversityInventors: Kyu-sik Kim, Masahiro Hiramoto
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Patent number: 8685541Abstract: 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: GrantFiled: May 19, 2009Date of Patent: April 1, 2014Assignee: BASF SEInventors: Natalia Chebotareva, Roger Pretot, Paul Adriaan Van Der Schaaf, Annemarie Wolleb, Heinz Wolleb
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Patent number: 8685768Abstract: The inventive concept provides organic light emitting diodes and methods of manufacturing an organic light emitting diode. The organic light emitting diode includes a substrate, a first electrode layer and a second electrode layer formed on the substrate, an organic light emitting layer disposed between the first electrode layer and the second electrode layer and generating light, and a scattering layer between the first electrode layer and the substrate or between the first electrode layer and the organic light emitting layer. The scattering layer scatters the light.Type: GrantFiled: June 12, 2012Date of Patent: April 1, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Jin Woo Huh, Jeong Ik Lee, Chul Woong Joo, Doo-Hee Cho, Jin Wook Shin, Jaehyun Moon, Jun-Han Han, Joo Hyun Hwang, Hye Yong Chu, Byoung Gon Yu
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Patent number: 8686408Abstract: A photoelectric conversion device is provided and includes: a first electrode, a second electrode, and a photoelectric conversion layer between the first and second electrodes, the photoelectric conversion layer containing a mixture of an organic photoelectric conversion dye, a fullerene or a fullerene derivative, and a fullerene polymer; various embodiments of the device, a photosensor, an imaging device, and production methods for these devices.Type: GrantFiled: February 24, 2011Date of Patent: April 1, 2014Assignee: FUJIFILM CorporationInventors: Katsuyuki Yofu, Daigo Sawaki
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Patent number: 8685543Abstract: 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: GrantFiled: May 31, 2012Date of Patent: April 1, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Toshihiro Iwakuma, Chishio Hosokawa, Hidetsugu Ikeda, Seiji Tomita, Takashi Arakane
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Publication number: 20140084253Abstract: A transparent conductive electrode stack containing a work function adjusted carbon-containing material is provided. Specifically, the transparent conductive electrode stack includes a layer of a carbon-containing material and a layer of a work function modifying material. The presence of the work function modifying material in the transparent conductive electrode stack shifts the work function of the layer of carbon-containing material to a higher value for better hole injection into the OLED device as compared to a transparent conductive electrode that includes only a layer of carbon-containing material and no work function modifying material.Type: ApplicationFiled: September 25, 2012Publication date: March 27, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Tze-Chiang Chen, James B. Hannon, Ning Li, Satoshi Oida, George S. Tulevski, Devendra K. Sadana
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Publication number: 20140087500Abstract: A transparent conductive electrode stack containing a work function adjusted carbon-containing material is provided. Specifically, the transparent conductive electrode stack includes a layer of a carbon-containing material and a layer of a work function modifying material. The presence of the work function modifying material in the transparent conductive electrode stack shifts the work function of the layer of carbon-containing material to a higher value for better hole injection into the OLED device as compared to a transparent conductive electrode that includes only a layer of carbon-containing material and no work function modifying material.Type: ApplicationFiled: October 25, 2012Publication date: March 27, 2014Applicant: International Business Machines CorporationInventors: Tze-Chiang Chen, James B. Hannon, Ning Li, Satoshi Oida, George S. Tulevski, Devendra K. Sadana
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Publication number: 20140087501Abstract: Graphene is used as a replacement for indium tin oxide as a transparent conductive electrode which can be used in an organic light emitting diode (OLED) device. Using graphene reduces the cost of manufacturing OLED devices and also makes the OLED device extremely flexible. The graphene is chemically doped so that the work function of the graphene is shifted to a higher value for better hole injection into the OLED device as compared to an OLED device containing an undoped layer of graphene. An interfacial layer comprising a conductive polymer and/or metal oxide can also be used to further reduce the remaining injection barrier.Type: ApplicationFiled: October 25, 2012Publication date: March 27, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Tze-Chiang Chen, James B. Hannon, Ning Li, Satoshi Oida, Devendra K. Sadana, George S. Tulevski
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Publication number: 20140084252Abstract: Graphene is used as a replacement for indium tin oxide as a transparent conductive electrode which can be used in an organic light emitting diode (OLED) device. Using graphene reduces the cost of manufacturing OLED devices and also makes the OLED device extremely flexible. The graphene is chemically doped so that the work function of the graphene is shifted to a higher value for better hole injection into the OLED device as compared to an OLED device containing an undoped layer of graphene. An interfacial layer comprising a conductive polymer and/or metal oxide can also be used to further reduce the remaining injection barrier.Type: ApplicationFiled: September 25, 2012Publication date: March 27, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Tze-Chiang Chen, James B. Hannon, Ning Li, Satoshi Oida, Devendra K. Sadana, George S. Tulevski
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Patent number: 8679647Abstract: The invention relates to organic electroluminescent devices which comprise triazine derivatives as the electron transport material.Type: GrantFiled: November 26, 2009Date of Patent: March 25, 2014Assignee: Merck Patent GmbHInventors: Christof Pflumm, Simone Leu, Joachim Kaiser, Amir Hossain Parham, Frank Voges, Jonas Valentin Kroeber, Arne Buesing
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Patent number: 8679645Abstract: 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: GrantFiled: May 16, 2006Date of Patent: March 25, 2014Assignee: Merck Patent GmbHInventors: Holger Heil, Arne Buesing, Philipp Stoessel, Horst Vestweber
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Patent number: 8679644Abstract: The present invention relates to polymers which contain certain triarylamine units of the Formula (1) The materials according to the invention exhibit a longer lifetime than materials in accordance with the prior art and therefore more suitable for use in polymeric organic light-emitting diodes.Type: GrantFiled: April 26, 2005Date of Patent: March 25, 2014Assignee: Merck Patent GmbHInventors: Amir Parham, Susanne Heun, Aurélie Ludemann, Arne Buesing, Junyou Pan, Heinrich Becker
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Patent number: 8679648Abstract: 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: GrantFiled: January 9, 2012Date of Patent: March 25, 2014Assignee: 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
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Publication number: 20140077166Abstract: The present invention provides an organic light emitting device comprising a first electrode, at least one organic layer and a second electrode, laminated successively, in which at least one layer of the organic layer has a polycyclic aromatic hydrocarbon as a core and comprises at least one of a derivative in which a substituted or unsubstituted C2-30 cycloalkane, or a substituted or unsubstituted C5-50 polycycloalkane is directly fused to the core or fused to a substituent of the core: and a new organic compound usable in the organic light emitting device. Furthermore, the present invention provides a charge carrier extracting, injecting or transporting material which has a polycyclic aromatic hydrocarbon as a core and comprises a derivative in which a substituted or unsubstituted C2-30 cycloalkane, or a substituted or unsubstituted C5-50 polycycloalkane is directly fused to the core or fused to a substituent of the core.Type: ApplicationFiled: September 20, 2012Publication date: March 20, 2014Inventors: Kong Kyeom Kim, Sung Kil Hong, Hye Young Jang, Dong Seob Jeong
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Patent number: 8673459Abstract: 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: GrantFiled: September 9, 2011Date of Patent: March 18, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Seo, Harue Osaka, Sachiko Kawakami, Nobuharu Ohsawa, Tsunenori Suzuki, Hiromi Nowatari, Hiroki Suzuki, Kyoko Takeda
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Patent number: 8673460Abstract: 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: GrantFiled: September 10, 2010Date of Patent: March 18, 2014Assignee: LG Chem, Ltd.Inventors: Ji-Eun Kim, Kong-Kyeom Kim, Se-Hwan Son, Jun-Gi Jang
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Patent number: 8669547Abstract: There is provided an organic light-emitting diode luminaire. The luminaire includes a patterned first electrode, a second electrode, and an electroluminescent layer therebetween. The electroluminescent layer includes: a host material capable of electroluminescence having an emission color that is blue; a first electroluminescent dopant having an emission color that is green; and a second electroluminescent dopant having an emission color that is in the red/orange region. The additive mixing of all the emitted colors results in an overall emission of white light.Type: GrantFiled: December 14, 2010Date of Patent: March 11, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Daniel David Lecloux, Norman Herron, Vsevolod Rostovtsev
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Publication number: 20140061594Abstract: A first device is provided. The first device further comprises an organic light emitting device. The organic light emitting device further comprises an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer may include an organic host compound and at least one organic emitting compound capable of fluorescent emission at room temperature. Various configurations are described for providing a range of current densities in which T-T fusion dominates over S-T annihilation, leading to very high efficiency fluorescent OLEDs.Type: ApplicationFiled: August 31, 2012Publication date: March 6, 2014Applicant: The Regents of the University of MichiganInventors: Stephen Forrest, Yifan Zhang
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Publication number: 20140061591Abstract: Optoelectronic devices with enhanced internal outcoupling include a substrate, an anode, a cathode, an electroluminescent layer, and electron transporting layer comprising a fluoro compound of formula I (Ar2)n—Ar1—(Ar2)n??I wherein Ar1 is C5-C40 aryl, C5-C40 substituted aryl, C5-C40 heteroaryl, or C5-C40 substituted heteroaryl; Ar2 is, independently at each occurrence, fluoro- or fluoroalkyl-substituted C5-40 heteroaryl; and n is 1, 2, or 3.Type: ApplicationFiled: August 30, 2012Publication date: March 6, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Kelly Scott Chichak, Jie Jerry Liu, Joseph John Shiang, Arunkumar Natarajan, Christian Maria Anton Heller
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Patent number: 8664645Abstract: An organic electroluminescence element includes: a pair of electrodes composed of a positive electrode and a negative electrode, one of which is transparent or semitransparent; and one or more organic compound layers that are sandwiched between the pair of electrodes, in which at least one layer of the organic compound layers contains one or more of charge-transporting polyesters represented by formula (I).Type: GrantFiled: August 31, 2011Date of Patent: March 4, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Hidekazu Hirose, Takeshi Agata, Katsuhiro Sato
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Patent number: 8664647Abstract: Provided is a high-luminance, long-life laminated organic electroluminescent element. The organic electroluminescent element has a composition in which a plurality of light-emitting units, including at least one organic light-emitting layer, are laminated between a positive electrode and a negative electrode, and in which a linking layer is held between the respective light-emitting units. The linking layer is formed by laminating, in succession from the positive electrode side, an electron generating/transport section, an intermediate layer, and a hole generating/transport section, which contain at least one metal selected from a group consisting of an alkali metal, alkaline earth metal, rare earth metal, alloy of these metals, and compound of these metals. Preferably the intermediate layer contains an electrical insulating non-semiconductive substance having a specific resistance which is between 1.0×102 ?·cm and 1.0×109 ?·cm.Type: GrantFiled: July 22, 2010Date of Patent: March 4, 2014Assignee: Kaneka CorporationInventors: Naomi Nagai, Masami Nishida, Nobuhito Miura, Toshio Matsumoto, Hirotaka Umezaki
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Publication number: 20140057390Abstract: Systems and methods are provided in which individual elements of a thin patterned film are deposited by two or more nozzles having different geometries. The different nozzle geometries may include one or more of different throttle diameters, different exhaust diameters, different cross-sectional shapes, different bore angles, different wall angles, different exhaust distances from the substrate, and different leading edges relative to the direction of movement of the nozzles or the substrate. Methods may include steps of ejecting a carrier gas and a material from a plurality of nozzles and depositing the material on the substrate in a plurality of laterally spaced elements, each of the elements deposited by a separate nozzle group. At least one of the nozzles in a group of nozzles depositing an element may be configured to deposit the material on the substrate in a width that is smaller than the width of the element.Type: ApplicationFiled: August 27, 2012Publication date: February 27, 2014Applicant: Universal Display CorporationInventors: Siddharth Harikrishna Mohan, Paul E. Burrows
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Patent number: 8659107Abstract: A radiation receiver has a semiconductor body including a first active region and a second active region, which are provided in each case for detecting radiation. The first active region and the second active region are spaced vertically from one another. A tunnel region is arranged between the first active region and the second active region. The tunnel region is connected electrically conductively with a land, which is provided between the first active region and the second active region for external electrical contacting of the semiconductor body. A method of producing a radiation receiver is additionally indicated.Type: GrantFiled: December 17, 2008Date of Patent: February 25, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Rainer Butendeich, Reiner Windisch
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Patent number: 8652653Abstract: 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: GrantFiled: June 30, 2009Date of Patent: February 18, 2014Assignee: Universal Display CorporationInventors: Chun Lin, Bin Ma, Chuanjun Xia, Yonggang Wu, Raymond Kwong
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Patent number: 8652656Abstract: 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: GrantFiled: November 14, 2011Date of Patent: February 18, 2014Assignee: Universal Display CorporationInventors: Lichang Zeng, Alexey Dyatkin, Gregg Kottas
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Patent number: 8653543Abstract: The deposition substrate of the present invention includes a light-transmitting substrate having a first region and a second region. In the first region, a first heat-insulating layer transmitting light is provided over the light-transmitting substrate, a light absorption layer is provided over the first heat-insulating layer, and a first organic compound-containing layer is provided over the light absorption layer. In the second region, a reflective layer is provided over the light-transmitting substrate, a second heat-insulating layer is provided over the reflective layer, and a second organic compound-containing layer is provided over the second heat-insulating layer. The edge of the second heat-insulating layer is placed inside the edge of the reflective layer, and there is a space between the first heat-insulating layer and the second heat-insulating layer.Type: GrantFiled: April 22, 2011Date of Patent: February 18, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kohei Yokoyama, Hisao Ikeda