Selection Of Material For Organic Solid-state Device (epo) Patents (Class 257/E51.024)

  • Patent number: 10611786
    Abstract: Reactions that directly install nitrogen into C—H bonds of complex molecules are significant because of their potential to change the chemical and biological properties of a given compound. Selective intramolecular C—H amination reactions that achieve high levels of reactivity, while maintaining excellent site-selectivity and functional-group tolerance is a challenging problem. Herein is reported a manganese perchlorophthalocyanine catalyst [MnIII(ClPc)] for intermolecular benzylic C—H amination of bioactive molecules and natural products that proceeds with unprecedented levels of reactivity and site-selectivity. In the presence of Brønsted or Lewis acid, the [MnIII(ClPc)]-catalyzed C—H amination demonstrates unique tolerance for tertiary amine, pyridine and benzimidazole functionalities. Mechanistic studies indicate that C—H amination proceeds through an electrophilic metallonitrene intermediate via a stepwise pathway where C—H cleavage is the rate-determining step of the reaction.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: April 7, 2020
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: M. Christina White, Joseph R. Clark, Kaibo Feng, Anasheh Sookezian, Chloe Wendell
  • Patent number: 9006725
    Abstract: The invention concerns apolymer of the formula (I): wherein: M1 is an optionally substituted dithienophthalimide formula (II): wherein: X is N or C—R, wherein R is H or a C1-C40 alkyl group, R2, at each occurrence, is independently selected from H, a C1-40 alkyl group, a C2-40 alkenyl group, a C1-40 haloalkyl group, and a monocyclicor polycyclic moiety, wherein: each of the C1-40 alkyl group, the C2-40 alkenyl group, and the C1-40 haloalkyl group can be optionally substituted with 1-10 substituents independently selected from a halogen, CN, —NO2, OH, NH2, —NH(C1-20 alkyl), N(C1-20 alkyl)2, —S(O)2OH, —CHO, —C(O)—C1-20 alkyl, —C(O)OH, —C(O)—OC1-20 alkyl, —C(O)NH2, —C(O)NH—C1-20 alkyl, —C(O)N(C1-20 alkyl)2, —OC1-20 alkyl, —SiH3, —SiH(C1-20 alkyl)2, —SiH2(C1-20 alkyl), and —Si(C1-20 alkyl)3; and the monocyclic or polycyclic moiety can be covalently bonded to the imide nitrogen via an optional linker, and can be optionally substituted with 1-5 substituentsindependently selected from a halogen, oxo, —CN, —NO2, OH,
    Type: Grant
    Filed: July 4, 2012
    Date of Patent: April 14, 2015
    Assignee: BASF SE
    Inventors: Hiroyoshi Noguchi, Florian Doetz, Ashok Kumar Mishra, Subramanian Vaidyanathan, Mai Minh-Tien
  • Patent number: 9006712
    Abstract: The invention relates to an organic memory with an electrode and a counter-electrode, comprising at least one oxide layer, an electrically undoped organic layer and an electrically doped organic layer between the electrode and the counter-electrode, wherein the oxide layer is adjacent to the electrode and the undoped organic layer.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: April 14, 2015
    Assignee: Novaled AG
    Inventors: Philipp Sebastian, Bjoern Luessem, Karl Leo
  • Patent number: 8986855
    Abstract: Derivatives of benzo[h]naphtho[1,2-f]quinoline and organic light emitting devices (OLEDs) including them are disclosed. The subject compounds impart high efficiency, low driving voltage, high luminance and long lifespan to the OLEDs. The subject compounds may be used as light emitting materials, as electron transporting materials, or as electron injecting materials. Because the subject compounds have high glass transition temperatures or high melting points, OLEDs including them exhibit high durability in storage or operation. Suitable substituents may be selected from deuterium, alkyl, alkenyl, alkynyl, cycloalkyl, alkoxy, aryloxy, arylthio, aryl, aryl- or heteroaryl-substituted amino, heteroaryl, condensed polycyclic, halogen, cyano, nitro, hydroxyl and carboxyl groups.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: March 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-O Lim, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Sang-Hyun Han, Bo-Ra Lee, Jong-Hyuk Lee
  • Patent number: 8974920
    Abstract: Triphenylene derivatives having a structure of formula (1) are provided. Ar represents an aromatic compound, n is 1 to 3, and each of R and R1 to R13 is a member independently selected from the group consisting of hydrogen, halo, cyano, trifluoromethyl, amino, C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, C3-C20 cycloalkyl, C3-C20 cycloalkenyl, C1-C20 heterocycloalkyl, C1-C20 heterocycloalkenyl, aryl and heteroaryl. The compound of the present invention may function as a host emitter or dopant in the emitter layer of OLED device. An OLED device is also herein provided.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: March 10, 2015
    Assignee: National Tsing Hua University
    Inventors: Chien-Hong Cheng, Yu-Han Chen, Ho-Hsiu Chou
  • Patent number: 8968885
    Abstract: Polymers which can be used in p-type materials for organic electronic devices and photovoltaic cells. Compounds, monomers, dimers, trimers, and polymers comprising: Good photovoltaic efficiency and lifetime can be achieved. The R group can provide solubility, environmental stability, and fine tuning of spectroscopic and/or electronic properties. Different polymer microstructures can be prepared which encourage multiple band gaps and broad and strong absorptions. The carbonyl can interact with adjacent thiophene rings to provide backbone with rigidity, induce planarity, and reduce and/or eliminate intramolecular chain twisting defects. Polymers comprising benzodithiophene and/or benzothiadiazole structures can show particularly high performance.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: March 3, 2015
    Assignee: Solvay USA, Inc.
    Inventors: Christopher T. Brown, Christophe René Gaston Grenier, Chad Landis, Elena E. Sheina, Atta Gueye
  • Patent number: 8962158
    Abstract: Provided is an organic electroluminescent device (organic EL device), which has improved luminous efficiency, has sufficient driving stability, and has a simple construction. The organic EL device of the present invention is an organic electroluminescent device, including a light-emitting layer and a hole-transporting layer between an anode and a cathode laminated on a substrate, in which the light-emitting layer contains a phosphorescent light-emitting dopant and an indolocarbazole compound that serves as a host material, or alternatively, the hole-transporting layer contains an indolocarbazole compound. The indolocarbazole compound is represented by the following formula (1). In the formula: A1's each represent an aromatic hydrocarbon group or an aromatic heterocyclic group, provided that at least one of A1's has a fused ring structure; and R1's each represent a hydrogen atom, an alkyl group, an alkoxy group, or an acyl group.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: February 24, 2015
    Assignee: Nippon Steel & Sumikin Chemical Co., Ltd.
    Inventors: Masaki Komori, Takahiro Kai, Toshihiro Yamamoto
  • Patent number: 8963142
    Abstract: Provided is a photoelectric transducer having a photoelectric conversion material layer including an organic material with higher sensitivity and response than conventional one. The photoelectric transducer includes (a-1) first and second electrodes 21 and 22 separated from each other and (a-2) a photoelectric conversion material layer 30 provided between the first and second electrodes 21 and 22, wherein the photoelectric conversion material layer 30 includes an azo moiety-containing thiazole compound represented by the structural formula (1).
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: February 24, 2015
    Assignee: Sony Corporation
    Inventors: Ayumi Nihei, Masaki Murata
  • Patent number: 8963131
    Abstract: An electronic device, such as a thin-film transistor, includes a semiconducting layer formed from a semiconductor composition. The semiconductor composition comprises a polymer binder and a small molecule semiconductor. The semiconducting layer has been deposited on an alignment layer that has been aligned in the direction between the source and drain electrodes. The resulting device has increased charge carrier mobility.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: February 24, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yiliang Wu, Anthony J. Wigglesworth, Ping Liu, Nan-Xing Hu
  • Patent number: 8951649
    Abstract: Derivatives of benzo[h]naphtho[1,2-f]quinoline and organic light emitting devices (OLEDs) including them are disclosed. The subject compounds impart high efficiency, low driving voltage, high luminance and long lifespan to the OLEDs. The subject compounds may be used as light emitting materials, as electron transporting materials, or as electron injecting materials. Because the subject compounds have high glass transition temperatures or high melting points, OLEDs including them exhibit high durability in storage or operation. Suitable substituents may be selected from deuterium, alkyl, alkenyl, alkynyl, cycloalkyl, alkoxy, aryloxy, arylthio, aryl, aryl- or heteroaryl-substituted amino, heteroaryl, condensed polycyclic, halogen, cyano, nitro, hydroxyl and carboxyl groups.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: February 10, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-O Lim, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Sang-Hyun Han, Bo-Ra Lee, Jong-Hyuk Lee
  • Patent number: 8945425
    Abstract: An electronic device, such as a thin-film transistor, includes a semiconducting layer formed from a semiconductor composition. The semiconductor composition comprises a polymer binder and a small molecule semiconductor. The small molecule semiconductor in the semiconducting layer has a crystallite size of less than 100 nanometers. Devices formed from the composition exhibit high mobility and excellent stability.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: February 3, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yiliang Wu, Sandra J. Gardner, Anthony J. Wigglesworth, Ping Liu, Nan-Xing Hu
  • Patent number: 8946682
    Abstract: The present invention relates to novel donor-acceptor fluorene compounds, which can be used as for the fabrication of electroluminescent devices, and a process of preparing said novel compounds. More particularly, the present invention relates to amine donor and nitrile/ester acceptor fluorenes, fluorenones their ?-conjugated systems and related compounds, processes for preparing the said compounds including oxidation of fluorenes to corresponding fluorenones and their use in preparing organic electronic devices such as organic light emitting diodes (OLEDs), photovoltaic/solar cell, Field effect transistors and other useful electroluminescent devices. The compounds are prepared by reacting 2H-pyran-2-ones in isolated or rigid conformations with cyclic ketones containing methylene carbonyl moiety in the presence of a base in an organic solvent.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: February 3, 2015
    Assignee: Council of Scientific & Industrial Research
    Inventors: Atul Goel, Sumit Chaurasia, Vijay Kumar, Sundar Manoharan, R. S. Anand
  • Patent number: 8937300
    Abstract: This invention relates to triarylamine compounds that are useful in electronic applications. It also relates to electronic devices in which the active layer includes such a compound.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: January 20, 2015
    Assignee: E I du Pont de Nemours and Company
    Inventors: Ying Wang, Weishi Wu, Kerwin D. Dobbs
  • Patent number: 8933437
    Abstract: An organic semiconductor device according to the present invention includes a semiconductor layer 14 interposed between two electrodes 12 and 15, and the semiconductor layer 14 contains a trioxotriangulene (TOT) derivative, which is a neutral radical compound, as a semiconductor material. The semiconductor layer 14 acts as an n-type semiconductor and coacts with a p-type semiconductor layer 13 to exhibit a photoelectric conversion effect. The organic semiconductor device is characterized as including a semiconductor layer that has a narrow band gap, has light absorption performance in an infrared region, and is high in carrier mobility.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: January 13, 2015
    Assignee: Kaneka Corporation
    Inventors: Yasushi Morita, Masaaki Yokoyama, Shozo Yanagida, Yoshihisa Tawada, Kenji Yamamoto, Ryotaro Tsuji
  • Patent number: 8927972
    Abstract: A current-amplifying transistor device is provided, between an emitter electrode and a collector electrode, with two organic semiconductor layers and a sheet-shaped base electrode. One of the organic semiconductor layers is arranged between the emitter electrode and the base collector electrode, and has a diode structure of a p-type organic semiconductor layer and an n-type p-type organic semiconductor layer. A current-amplifying, light-emitting transistor device including the current-amplifying transistor device and an organic EL device portion formed in the current-amplifying transistor device is also disclosed.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: January 6, 2015
    Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Ken-ichi Nakayama, Junji Kido, Yong-Jin Pu, Fumito Suzuki, Naomi Oguma, Naoki Hirata
  • Patent number: 8927978
    Abstract: An object of the invention is to provide an organic electroluminescence (EL) element formed using a relatively stable new electron injection material in an atmosphere of approximately ordinary pressure. An organic EL element of a preferable embodiment is an organic EL element including a supporting substrate, an anode, a light-emitting layer, an electron injection layer, and a cathode in this order, in which the electron injection layer is formed by applying an ink including an ionic polymer so as to form a film, and the cathode is formed by applying an ink including a material which forms the cathode so as to form a film or transferring a conductive thin film which forms the cathode.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: January 6, 2015
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shoji Mima, Yoshinobu Ono
  • Patent number: 8921832
    Abstract: The present invention relates to a novel compound and an organic light emitting device using the compound, and the compound according to the present invention may largely improve a life span, efficiency, electrochemical stability and thermal stability of the organic light emitting device.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: December 30, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Dae-Woong Lee, Sung-Kil Hong, Tae-Yoon Park, Yeon-Hwan Kim, Seong-So Kim
  • Patent number: 8916406
    Abstract: Disclosed is an organic electroluminescence device which can be stably produced by a wet process and exhibits enhanced external quantum efficiency and reduced coating unevenness and a production method thereof. Specifically, disclosed is a method of producing the organic electroluminescence device comprising at least a layer, which is formed by a wet process comprising of coating a solution of an organic material dissolved in a solvent to form a liquid layer, followed by removal of the solvent by blowing air to form the layer, wherein the relative drying rate of the solvent to butyl acetate is from 1 to 1000, (based on the drying rate of butyl acetate being 100), the thickness of the formed liquid layer is from 1 to 100 ?m, a air-blowing rate is from 0.1 to 5 m/s and the time between completion of coating and start of blowing is from 0 to 60 sec.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: December 23, 2014
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Wataru Ishikawa, Tadashi Sekiguchi
  • Patent number: 8912535
    Abstract: The various inventions and/or their embodiments disclosed herein relate to certain naphthalene diimide (NDI) compounds wherein the NDI groups are bonded to certain subclasses of bridging heteroaryl (hAr) groups, such as the “NDI-hAr-NDI” oligomeric compounds, wherein hAr is a heteroaryl group chosen to provide desirable electronic and steric properties, and the possible identities of the “Rz” terminal peripheral substituent groups are described herein. Transistor and inverter devices can be prepared.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: December 16, 2014
    Assignee: Georgia Tech Research Corporation
    Inventors: Lauren E. Polander, Shree Prakash Tiwari, Seth Marder, Bernard Kippelen, Raghunath R. Dasari, Yulia A. Getmanenko, Do Kyung Hwang, Mathieu Fenoll
  • Patent number: 8901549
    Abstract: The present invention provides an organic light emitting diode touch display panel including a substrate, a plurality of first electrodes and a plurality of second electrodes disposed on the substrate, a plurality of light emitting layers, a plurality of dielectric layers, a plurality of first electrode stripes, and a plurality of second stripes. Each light emitting layer is disposed on each first electrode, and each dielectric layer is disposed on each second electrode. Each first electrode stripe is disposed on the light emitting layers in each row, and each second electrode stripe is disposed on the dielectric layers in each row. Each first electrode, each light emitting layer and each first electrode stripe form an organic light emitting diode, and each second electrode, each dielectric layer and each second electrode stripe form a touch sensing capacitor.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: December 2, 2014
    Assignee: HannStar Display Corp.
    Inventors: Chien-Hsiang Huang, Kun-Hua Tsai, Jun-Shih Chung, Chun-Hsi Chen
  • Patent number: 8895963
    Abstract: An organic semiconductor material is represented by the following formula (F): wherein A represents a cyclic conjugated skeleton structure formed of one or more aromatic rings, and R1 and R2 each independently represent a substituted or unsubstituted alkyl group. The organic semiconductor material has high electron mobility and high on/off ratio, and can form an organic semiconductor thin film by a solution process making use of its solution.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: November 25, 2014
    Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Ken-ichi Nakayama, Junji Kido, Yong-Jin Pu, Yohei Hashimoto, Naomi Oguma, Naoki Hirata
  • Patent number: 8890130
    Abstract: Disclosed herein is a facile process for the formation of conjugated polymers inside or outside assembled solid-state devices. One process generally involves applying a voltage to a device comprising at least two electrodes, a combination of an electrolyte composition and a electroactive monomer disposed between the electrodes, and a potential source in electrical connection with the at least two electrodes; wherein the applying voltage polymerizes the electroactive monomer into a conjugated polymer. Also disclosed are electrochromic articles prepared from the process and solid-state devices comprising a composite of an electrolyte composition and a conjugated polymer.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: November 18, 2014
    Assignee: The University of Connecticut
    Inventors: Gregory Allen Sotzing, Michael A. Invernale
  • Patent number: 8860014
    Abstract: An organic electroluminescent member comprising: a positive electrode and a negative electrode on a substrate: multiple organic layers which include at least a positive hole transport layer, a light-emitting layer and an electron transport layer, and which are arranged between the positive electrode and the negative electrode; and an electron injection layer arranged between the electron transport layer and the negative electrode. The electron injection layer is formed from at least one selected from the group consisting of alkali metals and compounds containing alkali metals having a melting point of less than 90° C., and at least one selected from the group consisting of alkali metals, alkaline earth metals, compounds containing alkali metals, and compounds containing.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: October 14, 2014
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Kenji Arai, Toshihiko Iwasaki
  • Patent number: 8860019
    Abstract: The present invention provides a light-emitting element inducing an electron-transporting layer and a hole-transporting layer between a first electrode and a second electrode; and a first layer and a second layer between the electron-transporting layer and the hole-transporting layer, wherein the first layer includes a first organic compound and an organic compound having a hole-transporting property, the second layer includes a second organic compound and an organic compound having an electron-transporting property, the first layer is formed in contact with the first electrode side of the second layer, the first organic compound and the second organic compound are the same compound, and a voltage is applied to the first electrode and the second electrode, so that both of the first organic compound and the second organic compound emit light.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: October 14, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Nobuharu Ohsawa
  • Patent number: 8853349
    Abstract: Conjugated polymers and small molecules including the nonplanar aromatic 1,6-methano[10]annulene ring structure along with aromatic subunits, such as diketopyrrolopyrrole, and 2,1,3-benzothiadiazole, substituted with alkyl chains in a “Tail In,” “Tail Out,” or “No Tail” regiochemistry are disclosed.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: October 7, 2014
    Inventors: John D. Tovar, Benjamin C. Streifel, Patricia A. Peart
  • Patent number: 8853676
    Abstract: An organic light emitting diode (OLED) and a manufacturing method thereof are provided. The OLED includes a substrate, and a first electrode serving as an anode, an organic material layer, a second electrode serving as a cathode, and a sealing layer are formed on the substrate in sequence, and the second electrode is a composite transparent structure layer realizing light emission at the top portion. By forming the composite transparent cathode with a light-transmissive top portion, the OLED emits lights from the top portion, so as to effectively enhance a light utilization ratio and a light transmission ratio, and thus not only an aperture ratio of a display screen is enhanced, but also an excellent displaying effect is obtained.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: October 7, 2014
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Li Sun
  • Patent number: 8835022
    Abstract: Disclosed are a metal complex compound represented by the following Chemical Formula 1 or 3, and an organic light emitting diode device including the same. In Chemical Formulae 1 and 3, M1, M2, R1 to R14, y1 and y2 are as defined in the detailed description.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: September 16, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yuji Hamada, Kwan-Hee Lee
  • Patent number: 8816341
    Abstract: An organic electroluminescent display includes a substrate having a pixel area, a pixel definition layer having an opening corresponding to the pixel area, a pixel electrode in the pixel area, a hole injection layer on the pixel electrode, a conductive primer layer in the opening and on the hole injection layer, the conductive primer layer being more lyophilic than the hole injection layer, a hole transfer layer in the opening and on the conductive primer layer, an organic light-emitting layer on the hole transfer layer, and a common electrode on the organic light-emitting layer.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: August 26, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang Sub Kim, SungWoong Kim, Jae Hoon Kim
  • 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: 8804404
    Abstract: A semiconductor device that can transmit and receive data without contact is popular partly as some railway passes, electronic money cards, and the like; however, it has been a prime task to provide an inexpensive semiconductor device for further popularization. In view of the above current conditions, a semiconductor device of the present invention includes a memory with a simple structure for providing an inexpensive semiconductor device and a manufacturing method thereof. A memory element included in the memory includes a layer containing an organic compound, and a source electrode or a drain electrode of a TFT provided in the memory element portion is used as a conductive layer which forms a bit line of the memory element.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: August 12, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshinobu Asami, Tamae Takano, Masayuki Sakakura, Ryoji Nomura, Shunpei Yamazaki
  • Patent number: 8796677
    Abstract: An apparatus includes a substrate; and a photoactive layer disposed on the substrate. The photoactive layer includes an electron acceptor material; an electron donor material; and a material having dipoles.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: August 5, 2014
    Assignee: NUtech Ventures
    Inventors: Jinsong Huang, Bin Yang, Yongbo Yuan
  • Patent number: 8795852
    Abstract: Disclosed is a highly reliable organic electroluminescent device, in particular, a phosphorescent organic electroluminescent device using a low-molecular-weight host material, wherein a good balance between electron and hole injection and an efficient mechanism of phosphorescence are maintained. The organic electroluminescent device contains a light-emitting layer between an anode layer and a cathode layer and the light-emitting layer comprises a phosphorescent dopant material and a host material with a molecular weight of not more than 10,000. The host material is composed of a first host material and a second host material that is different from the first host material and the first host material differs from the second host material by not more than 0.1 eV in the ionization potential (IP), by not more than 0.1 eV in the electron affinity (EA), and by not more than 0.1 eV in the triplet energy (T1).
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: August 5, 2014
    Assignee: Nippon Steel & Sumikin Chemical Co., Ltd.
    Inventors: Tohru Asari, Hiroyuki Hayashida, Kazuto Shiraishi, Takayuki Shimizu, Yasushi Koishikawa, Kazuaki Yoshimura
  • Patent number: 8772767
    Abstract: There is provided an organic light-emitting diode luminaire. The luminaire includes a patterned first electrode, a second electrode, and a light-emitting layer therebetween. The light-emitting layer includes a first plurality of pixels having an emission color that is blue; a second plurality of pixels having an emission color that is green, the second plurality of pixels being laterally spaced from the first plurality of pixels; and a third plurality of pixels having an emission color that is red-orange, the third plurality of pixels being laterally spaced from the first and second pluralities of pixels. The additive mixing of all the emitted colors results in an overall emission of white light.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: July 8, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Kerwin D Dobbs, Norman Herron, Vsevolod Rostovtsev
  • Patent number: 8743031
    Abstract: An aspect of the present invention provides the dibenzothiophene compound expressed by General Formula 1 in Claim 1. In General Formula 1, R1 is either a hydrogen atom or an unsubstituted phenyl group, and Ar1 is any of phenanthrenyl, fluorenyl, triphenylenyl, naphthyl, chrysenyl, and pyrenyl groups. The options for the Ar1 substituents, namely the phenanthrenyl, fluorenyl, triphenylenyl, naphthyl, chrysenyl, and pyrenyl groups, may contain at least one of an alkyl group having one to four carbon atoms and an aryl group as a substituent.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: June 3, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masashi Hashimoto, Jun Kamatani, Kenichi Ikari, Akihito Saitoh
  • Patent number: 8692235
    Abstract: An organic photoelectric semiconductor device including organic group VA salts in an organic salt-containing layer and a method for manufacturing the same are provided. The organic photoelectric semiconductor device includes: a first electrode; an organic active layer disposed over the first electrode; an organic salt-containing layer disposed over the organic active layer, where the organic salt-containing layer includes quaternary group VA salts of cations represented by the following formula (I) or derivatives thereof and anions; and a second electrode, disposed over the organic salt-containing layer, where, X, R1, R2, R3 and R4 are defined the same as the specification. Accordingly, the present invention can enhance the transmission of electrons and thus enhances the performance of devices.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: April 8, 2014
    Assignee: National Cheng Kung University
    Inventors: Ten-Chin Wen, Sung-Nien Hsieh, Tzung-Fang Guo, Wei-Chou Hsu, Chen-Yan Li
  • Patent number: 8686406
    Abstract: A pyrene-based compound, an organic light-emitting diode including the compound and an organic light-emitting apparatus including the compound are disclosed.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: April 1, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Woo Shin, O-Hyun Kwon, Kyul Han, Seul-Ong Kim, Byoung-Ki Choi
  • Patent number: 8664648
    Abstract: An N-type organic thin film transistor, an ambipolar field-effect transistor, and methods of fabricating the same are disclosed. The N-type organic thin film transistor of the present invention comprises: a substrate; a gate electrode locating on the substrate; a gate-insulating layer covering the gate electrode, and the gate-insulating layer is made of silk protein; a buffering layer locating on the gate-insulating layer, and the buffering layer is made of pentacene; an N-type organic semiconductor layer locating on the buffering layer; and a source and a drain electrode, wherein the N-type organic semiconductor layer, the buffering layer, the source and the drain electrode are disposed over the gate dielectric layer.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: March 4, 2014
    Assignee: National Tsing Hua University
    Inventors: Jenn-Chang Hwang, Li-Shiuan Tsai, Chun-Yi Lee, Cheng-Lun Tsai
  • Patent number: 8659008
    Abstract: The present invention provides a composite material in which an organic compound and an inorganic compound are composited, which is superior in conductivity, a composite material which is superior in a property of injecting carriers to an organic compound, and a composite material having low resistance with metal. Further, the present invention provides a light emitting element operating at a low drive voltage by applying the composite material to a current excitation type light emitting element, and a light emitting device consuming low power by manufacturing a light emitting device using the light emitting element. The present invention provides a composite material including metal oxide and an organic compound having an oxidation peak potential with respect to an oxidation-reduction potential of ferrocene in dimethylformamide (DMF) at room temperature within the range of 0 V and 1.5 V (vs. Fc/Fc+), preferably within the range of 0.1 V and 1.0 V (vs. Fc/Fc+).
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: February 25, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Kumi Kojima
  • Patent number: 8658459
    Abstract: A method of producing an organic semiconductor device is provided in which a layer composed of an organic semiconductor having excellent crystallinity and orientation in a low-temperature region can be formed, and the device can be produced in the air.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: February 25, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akane Masumoto, Toshihiro Kikuchi, Noboru Ono, Hidemitsu Uno, Hiroko Nakashima
  • Patent number: 8637857
    Abstract: An organic light-emitting diode, organic solar cell or switching element comprising at least one substituted carbazole derivative of the general formula (I), (II) or (III) in which X is NR4, O, S or PR4; Y is NR5, O, S or PR5; where at least one of the symbols X and Y is NR4 or NR5; substituted carbazole derivatives of the formula (I), (II) or (III); a light-emitting layer comprising at least one substituted carbazole derivative of the general formula (I), (II) or (III) and at least one emitter material; the use of substituted carbazole derivatives of the general formula (I), (II) or (III) as matrix material, hole/exciton blocker material and/or electron/exciton blocker material and/or hole injection material and/or electron injection material and/or hole conductor material and/or electron conductor material in an organic light-emitting diode, an organic solar cell or in a switching element, and a device selected from the group consisting of stationary visual display units, mobile visual display units,
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: January 28, 2014
    Assignees: BASF SE, Koninklijke Philips Electronics N.V., Osram Opto Semiconductor GmbH
    Inventors: Nicolle Langer, Christian Schildknecht, Soichi Watanabe, Evelyn Fuchs, Gerhard Wagenblast, Christian Lennartz, Oliver Molt, Korinna Dormann, Arvid Hunze, Ralf Krause, Günter Schmid, Karsten Heuser, Volker van Elsbergen, Herbert Friedrich Boerner
  • Patent number: 8633473
    Abstract: It is an object of the present invention to provide a high-contrast light-emitting device without using a polarization plate. In particular, it is an object of the present invention to make contrast control simpler for a light-emitting device provided with a color filter. A light-emitting device according to the present invention has a feature of having a structure for reducing reflection of light from a light-emitting later at a reflective electrode, and further, has a feature of absorbing wavelengths other than the light by a color filter to enhance the contrast. Accordingly, contrast control can be performed in consideration of only a luminescence component from the light-emitting layer, and is thus made simpler.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: January 21, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeshi Noda, Masayuki Sakakura, Yasuyuki Arai, Yuko Tachimura
  • Patent number: 8624232
    Abstract: There is provided compounds of formula I, ambipolar semiconductor material derived from such compounds and devices comprising such ambipolar semiconductor material.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: January 7, 2014
    Inventors: Prashant Sonar, Samarendra P. Singh, Mui Siang Soh, Yuning Li
  • Patent number: 8598572
    Abstract: Provided are an electronic device including a bank structure and a method of manufacturing the same. The method of manufacturing the electronic device requires a fewer number of processes and comprises a direct patterning of insulating layers, such as fluorinated organic polymer layers, is possible using cost-efficient techniques such as inkjet printing.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: December 3, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Arthur Mathea, Joerg Fischer, Marcus Schaedig
  • Patent number: 8587192
    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).
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: November 19, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Kenichi Fukuoka, Chishio Hosokawa, Masahiro Kawamura, Mitsunori Ito, Yoriyuki Takashima, Toshinari Ogiwara
  • Patent number: 8586973
    Abstract: The present invention relates to a host material comprising a compound having two carbazole moieties which is suitable for blue-emitting OLEDs. Surprisingly, it has been found that when appropriate substituents are present in the carbazole structure, the solubility of the compounds can be improved without any adverse effect on the OLED performance. The present invention further relates to the use of the host materials and to an organic light emitting device comprising the host material.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: November 19, 2013
    Assignee: Solvay SA
    Inventors: Roland Martin, Veronique Mathieu, Victor Sorokin, Praveen Bachawala, Wieslaw Adam Mazur, Jonathan Maunoury
  • Patent number: 8546175
    Abstract: Disclosed is a method of manufacturing an organic light-emitting display device. An organic light-emitting display device may include, for example, a thin-film transistor (TFT) including a gate electrode, an active layer insulated from the gate electrode, source and drain electrodes insulated from the gate electrode and contacting the active layer and an insulating layer disposed between the source and drain electrodes and the active layer; and an organic light-emitting diode electrically connected to the TFT. The insulating layer may include, for example, a first insulating layer contacting the active layer; and a second insulating layer formed of a metal oxide and disposed on the first insulating layer.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: October 1, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Joong Chung, Jin-Seong Park, Jong-Han Jeong, Jae-Kyeong Jeong, Yeon-Gon Mo, Min-Kyu Kim, Tae-Kyung Ahn, Hui-Won Yang, Kwang-Suk Kim, Eun-Hyun Kim, Jae-Wook Kang, Jae-Soon Im
  • Patent number: 8535974
    Abstract: A composition comprising: at least one compound comprising a hole transporting core, wherein the core is covalently bonded to a first arylamine group and also covalently bonded to a second arylamine group different from the first, and wherein the compound is covalently bonded to at least one intractability group, wherein the intractability group is covalently bonded to the hole transporting core, the first arylamine group, the second arylamine group, or a combination thereof, and wherein the compound has a molecular weight of about 5,000 g/mole or less. Blended mixtures of arylamine compounds, including fluorene core compounds, can provide good film formation and stability when coated onto hole injection layers. Solution processing of OLEDs is a particularly important application.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: September 17, 2013
    Assignee: Plextronics, Inc.
    Inventors: Christopher T. Brown, Neetu Chopra, Christopher R. Knittel, Mathew Mathai, Venkataramanan Seshadri, Jing Wang, Brian Woodworth
  • Patent number: 8525155
    Abstract: The invention generally encompasses phosphonium ionic liquids and compositions and their use in many applications, including but not limited to: as electrolytes in electronic devices such as memory devices including static, permanent and dynamic random access memory, as battery electrolytes, as a heat transfer medium, fuel cells and electrochromatic devices, among other applications. In particular, the invention generally relates to phosphonium ionic liquids, compositions and molecules possessing structural features, wherein the molecules exhibit superior combination of thermodynamic stability, low volatility, wide liquidus range and ionic conductivity. The invention further encompasses methods of making such phosphonium ionic liquids, compositions and molecules, and operational devices and systems comprising the same.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: September 3, 2013
    Assignee: eSionic ES, Inc.
    Inventors: J. Adrian Hawkins, David A. Hudgins, Levi J. Irwin
  • Patent number: 8526216
    Abstract: A semiconductor device that can transmit and receive data without contact is popular partly as some railway passes, electronic money cards, and the like; however, it has been a prime task to provide an inexpensive semiconductor device for further popularization. In view of the above current conditions, a semiconductor device of the present invention includes a memory with a simple structure for providing an inexpensive semiconductor device and a manufacturing method thereof. A memory element included in the memory includes a layer containing an organic compound, and a source electrode or a drain electrode of a TFT provided in the memory element portion is used as a conductive layer which forms a bit line of the memory element.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: September 3, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshinobu Asami, Tamae Takano, Masayuki Sakakura, Ryoji Nomura, Shunpei Yamazaki
  • Patent number: 8518738
    Abstract: A method for forming a semiconductor body, the method comprising: forming a mixture of an organic semiconducting material and a binder material; causing the semiconducting material to at least partially solidify; and causing the binder material to crystallize in such a way as to cause the semiconducting material to at least partially segregate from the binder material.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: August 27, 2013
    Assignees: Cambridge Enterprise Limited, Technische Universiteit Eindhoven, Eidgenoessische Technische Hochschule Zurich
    Inventors: Henning Sirringhaus, Shalom Goffri, Rene A. J. Janssen, Christopher Paul Radano, Paul Smith, Christian Muller, Pascal Wolfer, Natalie Stingelin-Stutzmann