For Radiation-sensitive Or Light-emitting Organic Solid-state Device With Potential Or Surface Barrier (epo) Patents (Class 257/E51.026)
  • Patent number: 9040176
    Abstract: An organic light-emitting device including: a substrate; a display unit on the substrate; and an encapsulation layer covering the display unit, the encapsulation layer having an alternating stack structure of an organic layer and an inorganic layer, and the organic layer including a polymer polymerized from monomers of Formula 1 and Formula 2:
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 26, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Nam-Jin Kim, Chul-Hwan Park
  • Patent number: 9040172
    Abstract: The present invention describes novel indenofluorene derivatives which can preferably be employed as matrix materials for phosphorescent dopants or as electron-transport materials, in particular for use in the emission and/or charge-transport layer of electroluminescent devices. The invention furthermore relates to polymers which comprise these compounds as structural units and to a process for the preparation of the compounds according to the invention and to electronic devices which comprise same.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: May 26, 2015
    Assignee: Merck Patent GmbH
    Inventors: Amir Hossain Parham, Christof Pflumm, Teresa Mujica-Fernaud, Arne Buesing, Holger Heil
  • Patent number: 9040175
    Abstract: The present invention relates to an electronic device comprising at least one organic semiconducting material according to the following formula (I): wherein R1-4 are independently selected from H, halogen, CN, substituted or unsubstituted C1-C20-alkyl or heteroalkyl, C6-C20-aryl or C5-C20-heteroaryl, C1-C20-alkoxy or C6-C20-aryloxy, Ar is selected from substituted or unsubstituted C6-C20-aryl or C5-C20-heteroaryl, and R5 is selected from substituted or unsubstituted C6-C20-aryl or C5-C20-heteroaryl, H, F or formula (II).
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: May 26, 2015
    Assignee: NOVALED AG
    Inventors: Omrane Fadhel, Ramona Pretsch
  • Patent number: 9040382
    Abstract: A semiconductor device includes a substrate formed of a first semiconductor material; two insulators on the substrate; and a semiconductor region having a portion between the two insulators and over the substrate. The semiconductor region has a bottom surface contacting the substrate and having sloped sidewalls. The semiconductor region is formed of a second semiconductor material different from the first semiconductor material.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: May 26, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jing-Cheng Lin, Chen-Hua Yu
  • Patent number: 9035545
    Abstract: Provided is an organic light emitting diode including an organic light-emitting part including a first electrode, an organic material layer having a light-emitting layer, and a second electrode, and an encapsulating layer included on an entire top surface of the organic light-emitting part. Here, the encapsulating layer has a structure in which at least two of a water barrier film, a glass cap, a metal foil and a conductive film are stacked. Accordingly, the diode may have excellent water and oxygen barrier effects, and deterioration of the diode or running failure may be prevented.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: May 19, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Kwang Jin Jeong, Min Soo Kang, Jong Seok Kim, Hyun Jee Yoo, Yoon Gyung Cho
  • Patent number: 9034485
    Abstract: The present invention relates to compounds of the formula (1) and to the use thereof in organic electronic devices, and to organic electronic devices which comprise compounds of the formula (1), preferably as hole-transport materials and/or as emitting materials.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: May 19, 2015
    Assignee: Merck Patent GmbH
    Inventors: Arne Buesing, Holger Heil, Philipp Stoessel, Amir Hossain Parham, Rocco Fortte, Jonas Valentin Kroeber
  • Patent number: 9018660
    Abstract: A device includes a light emitting assembly including at least one light panel including at least one phosphorescent organic light emitting device. A total light emitting area of the light emitting assembly is greater than 1000 cm2. The device exhibits a luminous emittance of at least 7000 lm/m2 and a peak luminance of less than 5000 cd/m2. The light emitting assembly has a luminaire emissive utilization of at least 60 percent.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: April 28, 2015
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Huiqing Pang, Ruiqing Ma
  • Patent number: 9017829
    Abstract: The present invention relates to a material for an organic electroluminescent device, including a phenanthrocarbazole-based compound having a specific structure, and an organic electroluminescent device including the same. More specifically, the phenanthrocarbazole-based compound is applied as a material for a phosphorescent and fluorescent organic electroluminescent device, thereby providing an organic light emitting device with improved light emitting efficiency, luminance, thermal stability, driving voltage, lifetime and the like.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: April 28, 2015
    Assignee: Doosan Corporation
    Inventors: Jin-Seok Hong, Eun Jung Lee, Shin Han Kim, Kyoung-Soo Kim
  • Patent number: 9017827
    Abstract: A compound for an organic optoelectronic device, an organic light emitting diode, and a display device, the compound including sequentially combined substituents represented by the following Chemical Formulae 1 to 3:
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: April 28, 2015
    Assignee: Cheil Industries, Inc.
    Inventors: Sung-Hyun Jung, Hyung-Sun Kim, Ho-Jae Lee, Eun-Sun Yu, Mi-Young Chae, Ja-Hyun Kim
  • Patent number: 9012894
    Abstract: A light-emitting element includes a first electrode, a first light-emitting layer formed over the first electrode, a second light-emitting layer formed on and in contact with the first light-emitting layer to be in contact therewith, and a second electrode formed over the second light-emitting layer. The first light-emitting layer includes a first light-emitting substance and a hole-transporting organic compound, and the second light-emitting layer includes a second light-emitting substance and an electron-transporting organic compound. Substances are selected such that a difference in LUMO levels between the first light-emitting substance, the second light-emitting substance, and the electron-transporting organic compound is 0.2 eV or less, a difference in HOMO levels between the hole-transporting organic compound, the first light-emitting substance, and the second light-emitting substance is 0.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: April 21, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Tsunenori Suzuki
  • Patent number: 9005775
    Abstract: A composition includes: (B) an arylamine derivative having at least one polymerizable group; and (A) a cyano group-free azo based polymerization initiator.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: April 14, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Naoyuki Hayashi, Ryo Nishio, Saki Takada
  • Patent number: 9005779
    Abstract: Disclosed are a compound comprising a five-membered hetero ring, an organic electrical element using the same and a terminal thereof.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: April 14, 2015
    Assignee: Duk San Neolux Co., Ltd.
    Inventors: Junghwan Park, Daesung Kim, Heesun Ji, Soungyun Mun, Sunhee Lee, Bumsung Lee
  • Patent number: 9005777
    Abstract: A heterocyclic compound represented by Formula 1 below, and an organic light-emitting diode including the heterocyclic compound, and a flat display device including the organic light-emitting diode. wherein Ar1 to Ar4, X1, X2, Y1, Y2, L1, and m are defined as in the specification.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: April 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hye-Jin Jung, Seok-Hwan Hwang, Young-Kook Kim, Jin-O Lim, Sang-Hyun Han, Jong-Hyuk Lee
  • Patent number: 8999530
    Abstract: The present invention provides a new compound and an organic electronic device using the same. The compound according to the present invention may serve as hole injection, hole transporting, electron injection and transporting, and light emitting materials and the like in an organic electronic device comprising an organic light emitting device, and the organic electronic device according to the present invention shows excellent properties in terms of efficiency, driving voltage and service life.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: April 7, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Changhwan Shin, Kongkyeom Kim, Dong Hoon Lee, Jungi Jang, Minseung Chun
  • Patent number: 8999527
    Abstract: An electronic device employing a polymeric anode with high work function.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: April 7, 2015
    Assignee: Postech Academy-Industry Foundation
    Inventors: Tae-Woo Lee, Seong-Hoon Woo
  • Patent number: 8999526
    Abstract: An organic photoelectric device may include an anode and a cathode configured to face each other, and an active layer between the anode and cathode, wherein the active layer includes a quinacridone derivative and a thiophene derivative having a cyanovinyl group.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: April 7, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang Hee Lee, Kyu Sik Kim, Kyung Bae Park, Dong-Seok Leem, Seon Jeong Lim
  • 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: 8999528
    Abstract: A condensation compound is represented by Formula 1, 2, or 3 where R1 to R24 and A to F are further defined in the detailed description.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: April 7, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: So-Yeon Kim, Yoon-Hyun Kwak, Bum-Woo Park, Jong-Won Choi, Wha-Il Choi, Sun-Young Lee, Ji-Youn Lee, Jin-Young Yun
  • Patent number: 8993123
    Abstract: The present invention relates to the compounds of the formula (1) and to organic electroluminescent devices, in particular blue-emitting devices, in which these compounds are used as host material in the emitting layer and/or as electron-transport material.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: March 31, 2015
    Assignee: Merck Patent GmbH
    Inventors: Arne Buesing, Holger Heil, Philipp Stoessel
  • Patent number: 8993126
    Abstract: In the light-emitting element in which a plurality of EL layers is separated from each other by a charge generation layer, provided are an electron relay layer in contact with an anode side of the charge generation region and an electron transport layer in contact with the electron relay layer. The electron transport layer contains an alkaline earth metal. A concentration gradient of the alkaline earth metal contained in the electron transport layer is such that the concentration of the alkaline earth metal becomes lower from an interface between the electron transport layer and the electron relay layer to the anode.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: March 31, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiromi Nowatari, Satoshi Seo, Nobuharu Ohsawa
  • Patent number: 8993129
    Abstract: Fluorescence-emitting material which improves luminous efficiency of an organic light-emitting element such as an organic EL element or an organic PL element and an organic light-emitting element using the fluorescence-emitting material. The fluorescence-emitting material includes a compound having an indolocarbazole skeleton represented by the following general formula (1), as defined in the specification. The organic light-emitting element includes an organic EL element including: a substrate; an anode; a cathode; and a light-emitting layer, the anode and the cathode being laminated on the substrate and the light-emitting layer being sandwiched between the anode and the cathode, in which the light-emitting layer includes: the organic light-emitting material; and as a host material, an organic compound having excited triplet energy higher than that of the organic light-emitting material.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: March 31, 2015
    Assignees: Nippon Steel & Sumikin Chemical Co., Ltd., Kyushu University, National University Corporation
    Inventors: Ayataka Endo, Chihaya Adachi, Kazuaki Yoshimura, Atsushi Kawada, Hiroshi Miyazaki, Takahiro Kai
  • Patent number: 8993130
    Abstract: The present invention discloses a novel organic compound is represented by the following formula(I), the organic EL device employing the organic compound as host material or dopant material of emitting layer and/or as electron transporting material can lower driving voltage, prolong half-lifetime and increase the efficiency. wherein m represent an integer of 0 to 10, n represent an integer of 0 to 2. X is a divalent bridge selected from the atom or group consisting from O, S, C(R5)2, N(R5), Si(R5)2. Ar, R1 to R4 are substituents and the same definition as described in the present invention.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: March 31, 2015
    Inventors: Feng-Wen Yen, Cheng-Hao Chang
  • Patent number: 8994059
    Abstract: 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: Grant
    Filed: February 19, 2014
    Date of Patent: March 31, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: 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
  • Patent number: 8986857
    Abstract: Provided is a novel compound which can be used for a transport layer or as a host material or a light-emitting material in a light-emitting element and with which a high-performance light-emitting element can be manufactured. A dibenzo[c,g]carbazole compound in which an aryl group having 14 to 30 carbon atoms and including at least anthracene is bonded to nitrogen of a dibenzo[c,g]carbazole derivative is synthesized. By use of the dibenzo[c,g]carbazole compound, a light-emitting element having very good characteristics can be obtained.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: March 24, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroki Suzuki, Satoshi Seo, Sachiko Kawakami, Tsunenori Suzuki
  • Patent number: 8987715
    Abstract: An organic electroluminescence device (1) includes: an anode (3); a cathode (4); and an emitting layer (5) provided between the anode (3) and the cathode (4). The emitting layer contains a first host, a second host and a phosphorescent dopant. A triplet energy of each of the first host and the second host is 2.8 eV or more. An ionization potential of the first host is 5.5 eV or less. An affinity Af1 of the first host is smaller than an affinity Af2 of the second host.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: March 24, 2015
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kazuki Nishimura, Hitoshi Kuma, Chishio Hosokawa, Hideaki Nagashima, Masaki Numata
  • Patent number: 8986852
    Abstract: The present invention relates to the compounds of the formula (1) and to organic electroluminescent devices, in particular blue-emitting devices, in which these compounds are used as host material or dopant in the emitting layer and/or as hole-transport material and/or as electron-transport material.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: March 24, 2015
    Assignee: Merck Patent GmbH
    Inventors: Philipp Stoessel, Arne Buesing, Holger Heil
  • Patent number: 8986858
    Abstract: Disclosed is an organic electroluminescent device (organic EL device) that is improved in luminous efficiency, sufficiently secures driving stability, and has a simple configuration. This organic EL device comprises organic layers between an anode and a cathode piled one upon another on a substrate and at least one organic layer selected from a light-emitting layer, a hole-transporting layer, an electron-transporting layer, and a hole-blocking layer contains a carbazole compound represented by the following formula (1). In the case where the light-emitting layer of the organic electroluminescent device contains a phosphorescent dopant and a host material, it is the carbazole compound that is contained as the host material.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: March 24, 2015
    Assignee: Nippon Steel & Sumikin Chemical Co., Ltd.
    Inventors: Masashi Tada, Junya Ogawa, Takahiro Kai, Megumi Matsumoto, Yasuhisa Tsutsumi
  • Patent number: 8981351
    Abstract: An organic light-emitting device including: a first electrode; a second electrode; and an organic layer that includes a carrier transport layer and an emission layer and is interposed between the first and second electrodes, wherein the emission layer and the carrier transport layer include the same material.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: March 17, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yuji Hamada, Kwan-Hee Lee
  • Patent number: 8980442
    Abstract: There are provided an aromatic monoamine derivative having a fluorene structure-containing organic group and an aromatic hydrocarbon group-containing organic group, and an organic electroluminescent element containing an organic thin film layer composed of a single layer or plural layers while including at least a light emitting layer, the organic thin film layer being between a cathode and an anode, wherein at least one layer of the organic thin film layer, particularly a hole transport layer, contains the aromatic amine derivative alone or as a component of a mixture. An organic electroluminescent element which maintains high luminous efficiency even if exposed to a high temperature environment, and has a low driving voltage and a long emission lifetime, and an aromatic amine derivative capable of realizing the organic electroluminescent element are provided.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: March 17, 2015
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Nobuhiro Yabunouchi, Tomoki Kato, Takahiro Fujiyama, Yoshiyuki Totani
  • Patent number: 8980443
    Abstract: Disclosed is an organic electroluminescent element which can be produced by a wet process, has improved laminated structure, and also has improved external quantum efficiency and an improved service life. The organic electroluminescent element comprises at least an anode; a cathode and a laminated structure intercalated between the anode and the cathode, all of which are arranged on a substrate, wherein the laminated structure has at least four layers formed by a wet process, and wherein the layers produced by the wet process include at least a hole injection layer, a hole transport layer and a light-emitting layer. The organic electroluminescent element is characterized in that the hole injection layer comprises an electrically conductive polymer, the hole transport layer comprises a polymeric compound having a repeating unit represented by general formula (1), and the polymeric compound has a weight average molecular weight of 50,000 to 200,000 in terms of polystyrene content.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: March 17, 2015
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Kazutoshi Murota, Toshihiko Iwasaki
  • Patent number: 8974702
    Abstract: The present invention relates to novel formulations comprising an organic semiconductor (OSC) and one or more organic solvents. The formulation comprises a dimethyl anisole solvent. Furthermore, the present invention describes the use of these formulations as inks for the preparation of organic electronic (OE) devices, especially organic photovoltaic (OPV) cells and OLED devices, to methods for preparing OE devices using the novel formulations, and to OE devices, OLED devices and OPV cells prepared from such methods and formulations.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: March 10, 2015
    Assignee: Merck Patent GmbH
    Inventors: Philip Edward May, Mark James, Susanne Heun, Magda Goncalves-Miskiewicz, Katie Court
  • Patent number: 8962160
    Abstract: The present invention discloses a novel material is represented by the following formula (A), the organic EL device employing the material as blue emitting layer can lower driving voltage, prolong half-lifetime and increase the efficiency. Wherein m represent an integer of 0 to 4, R1 and R2 are identical or different. R1 and R2 are independently selected from the group consisting of a hydrogen atom, alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 30 carbon atoms. R3 and R4 are identical or different, R3 and R4 are independently selected from the group consisting of hydrogen atom, a halide, a substituted or unsubstituted arylamine, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: February 24, 2015
    Assignee: Feng-Wen Yen
    Inventors: Feng-Wen Yen, Cheng-Hao Chang
  • Patent number: 8962157
    Abstract: Compounds of formula I may be used in optoelectronic devices wherein R1, R2 and R4 are, independently at each occurrence, H, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; R3 is H or a is, independently at each occurrence, 1 or 2; b is, independently at each occurrence, an integer ranging from 0-3; c is, independently at each occurrence, an integer ranging from 0-4; Ar is independently at each occurrence, H, or heteroaryl; and at least two of Ar are heteroaryl.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: February 24, 2015
    Assignee: General Electric Company
    Inventors: Qing Ye, Jie Liu, Kelly Scott Chichak, Yangang Liang
  • Patent number: 8956740
    Abstract: A film-forming ink includes: film-forming materials containing a ?-conjugated compounds; and a liquid medium which is capable of dissolving or dispersing the film-forming material and containing a compound represented by the following formula (I), wherein the compound is one in which the substituent of at least one of R1 to R6 is a linear or branched alkyl group, and the molecular structure of the one substituent is larger than the molecular structure of another substituent, and thus, the molecular weight of the whole molecule is biased towards the side where the one substituent is present.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: February 17, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Shotaro Watanabe, Masashi Goto
  • Patent number: 8951645
    Abstract: A stacked organic light emitting device that includes an anode connected to an external power source, a cathode connected to the external power source, at least two light emitting sections aligned between the anode and the cathode, including a light emitting layer, and an internal electrode aligned between the light emitting sections. The internal electrode is a single-layered internal electrode which is made from one selected from the group consisting of a metal, alloys of the metal, and metal oxides thereof, having a work function below 4.5 eV, each light emitting section includes an organic material layer containing an organic material having an electron affinity above 4 eV, and the organic material layer is formed between the light emitting layer of the light emitting section and the electrode facing the anode connected to the external power source in two electrodes which make contact with the light emitting section.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: February 10, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Ji Weon Jeong, Young Chul Lee, Jeoung Kwen Noh, Yun Hye Hahm, Dong Seob Jeong, Jun Gi Jang
  • Patent number: 8951647
    Abstract: The present invention relates to organic electroluminescent devices which comprise fluorene derivatives and spirobifluorene derivatives as matrix material for phosphorescent emitters.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: February 10, 2015
    Assignee: Merck Patent GmbH
    Inventors: Amir Hossain Parham, Joachim Kaiser, Anja Gerhard, Jonas Valentin Kroeber
  • Patent number: 8952362
    Abstract: 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: Grant
    Filed: August 31, 2012
    Date of Patent: February 10, 2015
    Assignee: The Regents of the University of Michigan
    Inventors: Stephen Forrest, Yifan Zhang
  • Patent number: 8945728
    Abstract: The invention provides an organic compound incorporating a specific structure into a pyridine skeleton or a 1,3,5-triazine skeleton and adapting the molecular weight to a specific range, a composition comprising the organic compound and a solvent, organic electroluminescent element comprising a layer that is formed by using the composition, and the uses thereof.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: February 3, 2015
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Koichi Ishibashi, Hideki Gorohmaru, Wataru Shimizu, Tomomi Okamoto
  • Patent number: 8945724
    Abstract: A novel nitrogen-containing heterocyclic derivative having a specific structure. An organic electroluminescence device comprises an organic thin-film layer which is disposed between a cathode and an anode and comprises one or more layers having a light emitting layer. At least one layer of the organic thin-film layer comprises the nitrogen-containing heterocyclic derivative. The organic electroluminescence device exhibits a high luminance and a high luminous efficiency even at a low driving voltage.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: February 3, 2015
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Hiroshi Yamamoto, Takashi Arakane
  • Patent number: 8946711
    Abstract: An organic light-emitting display device including: a substrate; a plurality of pixels each including a first electrode, a second electrode, and an organic emission layer interposed between the first electrode and the second electrode; and a black matrix-containing neutral density (ND) film formed in a direction in which light is emitted from the plurality of pixels.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: February 3, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jang-Seok Ma
  • Patent number: 8940412
    Abstract: An organic electroluminescence device and a material for producing the organic electroluminescence device. The organic electroluminescence device includes an organic thin film layer between a cathode and an anode, the organic thin film layer including one or more layers, in which the organic thin film layer includes one or more light emitting layers and at least one of the light emitting layers includes a phosphorescent material and a host material. The host material has an essential structure in which a naphthalene ring is bonded to a fluorene skeleton, dibenzofuran skeleton, or dibenzothiophene skeleton. The organic electroluminescence device is a phosphorescent device having high efficiency and long lifetime.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: January 27, 2015
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Yoriyuki Takashima, Toshihiro Iwakuma, Toshinari Ogiwara, Chishio Hosokawa, Mitsunori Ito
  • Patent number: 8940407
    Abstract: The present invention relates to the improvement of organic electronic devices, in particular electroluminescent devices, by using compounds which can have a plurality of isomers, where one of these isomers is present in excess.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: January 27, 2015
    Assignee: Merck Patent GmbH
    Inventors: Philipp Stoessel, Esther Breuning, Horst Vestweber, Holger Heil
  • Patent number: 8940416
    Abstract: A triarylamine derivative represented by a general formula (G1) given below is provided. Note that in the formula, Ar represents either a substituted or unsubstituted phenyl group or a substituted or unsubstituted biphenyl group; ? represents a substituted or unsubstituted naphthyl group; ? represents either hydrogen or a substituted or unsubstituted naphthyl group; n and m each independently represent 1 or 2; and R1 to R8 each independently represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, or a phenyl group.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: January 27, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Harue Osaka, Takahiro Ushikubo, Nobuharu Ohsawa, Satoshi Seo, Tsunenori Suzuki
  • Patent number: 8932734
    Abstract: Compounds comprising a 3,9-linked oligocarbazole moiety and a dibenzothiophene, dibenzofuran, dibenzoselenophene, aza-dibenzothiophene, aza-dibenzofuran, or aza-dibenzoselenophene are provided. The 3,9-linked oligocarbazole and dibenzo or aza-dibenzo moiety are separated by an aromatic spacer. The compounds may be used as non-emissive materials for phosphorescent OLEDs to provide devise having improved performance.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: January 13, 2015
    Assignee: Universal Display Corporation
    Inventor: Alexey Dyatkin
  • Patent number: 8932732
    Abstract: The present invention relates to organic electroluminescent devices, in particular blue-emitting devices, in which compounds of the formulae (1) to (4) are used as host material or dopant in the emitting layer and/or as hole-transport material and/or as electron-transport material.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: January 13, 2015
    Assignee: Merck Patent GmbH
    Inventors: Arne Buesing, Philipp Stoessel, Holger Heil
  • Patent number: 8932735
    Abstract: An aromatic amine derivative represented by the following formula (1): wherein A1 is a substituted or unsubstituted alkyl group, a substituted or unsubstituted aromatic group, a substituted or unsubstituted heterocyclic group or an organic group represented by the following formula (2): wherein X1, X2 and X3 are independently a substituted or unsubstituted aromatic group or a substituted or unsubstituted heterocyclic group; X1 and X2 are linkage groups which are different from each other; and B1, B2 and B3 are independently a substituted or unsubstituted aromatic group or a substituted or unsubstituted heterocyclic group.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: January 13, 2015
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Yumiko Mizuki, Masakazu Funahashi
  • Patent number: 8927121
    Abstract: 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: Grant
    Filed: June 24, 2013
    Date of Patent: January 6, 2015
    Assignee: Nitto Denko Corporation
    Inventors: Shijun Zheng, Jensen Cayas, Sheng Li, Amane Mochizuki, Hyun Sik Chae, Brett T. Harding
  • Patent number: 8927114
    Abstract: A layer included in an electroluminescent element is required to be thickened to optimize light extraction efficiency of the electroluminescent element and to prevent short-circuit between electrodes. However, in a conventional element material, desired light extraction efficiency cannot be accomplished since drive voltage rises or power consumption is increased as the element material is thickened. A composite is formed by mixing a conjugated molecule having low ionization potential and a substance having an electron-accepting property to the conjugated molecule. A composite layer included in an element is formed using the composite as an element material. The composite layer is arranged between a first electrode and a light emitting layer or between a second electrode and a light emitting layer. The composite layer has high conductivity; therefore, drive voltage does not rise even if a film thickness is increased.
    Type: Grant
    Filed: November 24, 2005
    Date of Patent: January 6, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Ryoji Nomura, Satoshi Seo, Hiroko Abe, Takako Takasu, Hideko Inoue, Hisao Ikeda, Daisuke Kumaki, Junichiro Sakata
  • Patent number: 8929978
    Abstract: Methods and devices related to the treatment of diseases using phototherapy are described. Some embodiments provide an organic light-emitting diode device, such as a light-emitting device for phototherapy, comprising Ring system 1, Ring system 2, Ring system 3, or Ring system 4. Methods of treating disease with phototherapy are also described.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: January 6, 2015
    Assignee: Nitto Denko Corporation
    Inventors: Sazzadur Rahman Khan, Shijun Zheng, Amane Mochizuki, Liping Ma
  • Patent number: 8927119
    Abstract: There is provided an organic compound having excellent characteristics, including excellent electron-injecting/transporting performance, hole blocking ability, and high stability in the thin-film state, for use as material of an organic electroluminescent device having high efficiency and high durability. There is also provided a high-efficient and high-durable organic electroluminescent device using the compound. The compound is represented by general formula (1) having a substituted anthracene ring structure and a pyridoindole ring structure. The organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, and the compound is used as a constituent material of at least one organic layer.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: January 6, 2015
    Assignee: Hodogaya Chemical Co., Ltd.
    Inventors: Norimasa Yokoyama, Shuichi Hayashi, Naoaki Kabasawa, Daizou Kanda, Shigeru Kusano