Comprising Aliphatic Or Olefinic Chains (e.g., Polyn-vinylcarbazol, Pvc, Ptfe) (epo) Patents (Class 257/E51.033)
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Patent number: 9006721Abstract: An organic light-emitting diode includes a substrate, a first electrode on the substrate, a second electrode facing the first electrode, an emission layer interposed between the first electrode and the second electrode, a hole transportation region between the first electrode and the emission layer, and an electron transportation region interposed between the emission layer and the second electrode. The hole transportation region includes a first compound represented by Formula 1 below, and at least one of the hole transportation region and the emission layer includes a second compound represented by Formula 100 below: wherein Ar101, Ar102, xa, xb, R101-R119, Ar50, Ar60, R51-R60 and p are further defined.Type: GrantFiled: July 16, 2013Date of Patent: April 14, 2015Assignee: Samsung Display Co., Ltd.Inventors: Ji-Youn Lee, Yoon-Hyun Kwak, Bum-Woo Park, Sun-Young Lee, Jong-Won Choi, Wha-Il Choi, So-Yeon Kim
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Patent number: 8791451Abstract: A composition comprising: at least one conjugated polymer, at least one second polymer comprising repeat units represented by: (I) optionally, —[CH2—CH(Ph-OH)]— and (II) —[CH2—CH(Ph-OR)]— wherein Ph is a phenyl ring and R comprises a fluorinated group, an alkyl group, an alkylsulfonic acid group, an alkylene oxide group, or a combination thereof is described. Other polymers can be used as second polymer including polymers comprising modified naphthol side groups. The composition can be used in hole injection and hole transport layers for organic electronic devices. Increased lifetime and better processability can be achieved. Versatility with useful OLED emitters can be achieved. Ink formulations can be adapted for ink jet printing. The conjugated polymer can be a polythiophene. Applications include OLEDs and OPVs.Type: GrantFiled: March 5, 2009Date of Patent: July 29, 2014Assignee: Solvay USA, Inc.Inventors: Venkataramanan Seshadri, Christopher T. Brown, Brian E. Woodworth, Edward S. Yang
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Patent number: 8741442Abstract: A surface modified electrode, included in an electronic device comprises an electrode layer, and a functional organic material. The functional organic material comprises an amine-substituted polymeric material which is on the surface of and in contact with the electrode layer. Such surface modified electrodes are useful for producing electronic devices.Type: GrantFiled: April 15, 2005Date of Patent: June 3, 2014Assignee: General Electric CompanyInventors: James Anthony Cella, Christian Maria Anton Heller, Jie Liu
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Patent number: 8546796Abstract: A semiconductor device including a gate electrode, a gate insulating layer, source/drain electrodes, and a channel-forming region that are disposed on a base is provided. The method includes the steps of forming a thin film by application of a mixed solution including a polymeric insulating material and a dioxaanthanthrene compound represented by structural formula (1) below; and subsequently drying the thin film to induce phase separation of the polymeric insulating material and the dioxaanthanthrene compound, thereby forming the gate insulating layer from the polymeric insulating material and the channel-forming region from the dioxaanthanthrene compound: wherein at least one of R3 and R9 represents a substituent other than hydrogen.Type: GrantFiled: February 20, 2013Date of Patent: October 1, 2013Assignee: Sony CorporationInventors: Norihito Kobayashi, Mari Sasaki, Takahiro Ohe
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Patent number: 8426038Abstract: Organic electroluminescence devices including phosphorescent polymer compounds having high light-emitting efficiency and long luminescent life. These phosphorescent polymer compounds include a structural unit that is derived from a compound of Formula (1) below as a side-chain thereof. In Formula (1), L1 and L2 are two different kinds of ligands, and are selected from Formulae (a1) to (a6) and (b1) to (b6), respectively, as defined in the specification.Type: GrantFiled: September 10, 2008Date of Patent: April 23, 2013Assignee: Showa Denko K.K.Inventor: Yoshiaki Takahashi
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Patent number: 8084935Abstract: There are provided an organic electroluminescent (EL) element, which can realize the provision of a large screen by the formation of a film through coating in a simple and highly efficient manner, and a display panel using the same. The organic EL element comprises: a pair of opposed electrodes, a cathode and an anode; and an organic compound layer having a single-layer or multi-layer structure held between the pair of opposed electrodes, at least one layer constituting the organic compound layer being a layer containing at least one polymer comprising at least one monomer unit of a specific compound.Type: GrantFiled: November 9, 2004Date of Patent: December 27, 2011Assignee: Dai Nippon Printing Co., Ltd.Inventors: Satoshi Suzuki, Masato Okada, Yoshinobu Kashibuchi, Tohru Kobayashi
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Patent number: 7989569Abstract: Provided are a polyvinyl pyrrole host material emitting highly efficient phosphorescence, a luminescent layer using the material, and an organic electroluminescent display device. The polyvinyl pyrrole host material shows highly efficient luminescence having improved energy transfer, and thus is useful for an organic electroluminescent display device and other various light emitting devices.Type: GrantFiled: October 27, 2006Date of Patent: August 2, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Jong-Jin Park, Byoung-Ki Choi, Tae-Yong Noh, O-Hyun Kwon, Myeong-Suk Kim, Yu-Jin Kim, Sang-Heon Hyun, Boris Aleksandrovich Trofimov
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Patent number: 7915074Abstract: A method of manufacturing a thin film transistor (“TFT”) array panel includes forming a first conductive layer, gate insulating layer, and first insulating layer on a substrate, patterning the first insulating layer to form a first insulating pattern including an opening, etching the gate insulating layer and first conductive layer to form a gate insulating member and a gate line, forming an organic semiconductor in the opening, forming a passivation layer and a second insulating pattern thereon, patterning the second insulating layer to form a second insulating pattern, etching the passivation layer, depositing a second conductive layer thereon, forming a pixel electrode by removing the second insulating pattern and the second conductive layer deposited on the second insulating pattern, and forming a drain electrode and a data line by depositing and patterning a third conductive layer on the resultant structure.Type: GrantFiled: April 25, 2007Date of Patent: March 29, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Soo-Wan Yoon
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Patent number: 7816669Abstract: A light emitting system includes a polymer mixture, and a plurality of nanocrystals occupying a predetermined portion of the polymer mixture. The polymer mixture includes at least two polymers that phase-segregate. Method(s) for controlling nanocrystal distribution within the light emitting device are also disclosed.Type: GrantFiled: October 13, 2006Date of Patent: October 19, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventor: Krzysztof Nauka
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Patent number: 7800102Abstract: The organic TFT includes: a gate electrode; source and drain electrodes insulated from the gate electrode; an organic semiconductor layer insulated from the gate electrode and electrically connected to the source and drain electrodes; an insulating layer insulating the gate electrode from the source and drain electrodes and the organic semiconductor layer; and a self-assembly monolayer (SAM) included between the insulating layer and the organic semiconductor layer. A compound forming the SAM has at least one terminal group selected from the group consisting of an unsubstituted or substituted C6-C30 aryl group and an unsubstituted or substituted C2-C30 heteroaryl group. The organic TFT is formed by forming the above-described layers and forming the SAM on the insulating layer before the organic semiconductor layer and source and drain electrodes are formed.Type: GrantFiled: October 18, 2006Date of Patent: September 21, 2010Assignee: Samsung Mobile Display Co., Ltd.Inventors: Jin-Seong Park, Taek Ahn, Min-Chul Suh
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Patent number: 7763365Abstract: A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.Type: GrantFiled: February 6, 2008Date of Patent: July 27, 2010Assignee: Showa Denko K.K.Inventors: Masataka Takeuchi, Shuichi Naijo, Naoko Ito, Koro Shirane, Takashi Igarashi, Yoshiaki Takahashi, Motoaki Kamachi
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Patent number: 7736757Abstract: A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.Type: GrantFiled: February 6, 2008Date of Patent: June 15, 2010Assignee: Showa Denko K.K.Inventors: Masataka Takeuchi, Shuichi Naijo, Naoko Ito, Koro Shirane, Takashi Igarashi, Yoshiaki Takahashi, Motoaki Kamachi
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Patent number: 7683368Abstract: The object of the present invention is to provide a method of manufacturing a semiconductor element which can produce a semiconductor element provided with a semiconductor layer having a high carrier transport ability, a semiconductor element manufactured by the semiconductor element manufacturing method, an electronic device provided with the semiconductor element, and electronic equipment having a high reliability.Type: GrantFiled: April 18, 2006Date of Patent: March 23, 2010Assignee: Seiko Epson CorporationInventors: Takashi Shinohara, Yuji Shinohara, Koichi Terao
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Publication number: 20100025672Abstract: An organic transistor includes a semiconductor section that includes a thin-film laminate in which a first organic thin film and a second organic thin film are alternately stacked. The thin-film laminate includes at least two layers of the first organic thin film. The first organic thin film is a pentacene thin film, and the second organic thin film is an amorphous organic thin film. The pentacene thin film may be a pentacene bilayer thin film, and the amorphous organic thin film may be a tetraaryldiamine thin film. The tetraaryldiamine thin film may be an ?-NPD thin film. The organic transistor has improved transistor characteristics (e.g., mobility, ON/OFF ratio, or threshold value control).Type: ApplicationFiled: September 23, 2009Publication date: February 4, 2010Applicant: National University Corporation University of ToyamaInventors: Hiroyuki OKADA, Shigeki NAKA
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Patent number: 7649211Abstract: The present invention provides a light-emitting element including 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: GrantFiled: May 25, 2007Date of Patent: January 19, 2010Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Nobuharu Ohsawa
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Patent number: 7642124Abstract: A low channel length organic field-effect transistor can be produced in high volume and at low cost. The transistor structure includes successively deposited patterned layers of a first conductor layer acting as a source terminal, a first dielectric layer, a second conductor layer acting as a drain terminal, a semiconductor layer, a second dielectric layer, and a third conductor layer acting as the gate terminal. In this structure, the transistor is formed on the edge of the first dielectric between the first conductor layer and the second conductor layer. The second conductor layer is deposited on the raised surfaces formed by the dielectric such that conductive ink does not flow into the trough between the dielectric raised surfaces. This is accomplished by coating a flat or rotary print plate with the conductive ink, and applying the appropriate pressure to deposit the materials only on the raised surfaces of the dielectric. The second metal is automatically aligned to the layer beneath it.Type: GrantFiled: May 20, 2008Date of Patent: January 5, 2010Assignee: OrganicID, Inc.Inventors: Klaus Dimmler, Robert R. Rotzoll
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Patent number: 7635527Abstract: A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.Type: GrantFiled: February 6, 2008Date of Patent: December 22, 2009Assignee: Showa Denko K.K.Inventors: Masataka Takeuchi, Shuichi Naijo, Naoko Ito, Koro Shirane, Takeshi Igarashi, Yoshiaki Takahashi, Motoaki Kamachi
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Patent number: 7608905Abstract: An apparatus has multiple sets of independently addressable interdigitated nanowires. Nanowires of a set are in electrical communication with other nanowires of the same set and are electrically isolated from nanowires of other sets.Type: GrantFiled: October 17, 2006Date of Patent: October 27, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Alexandre Bratkovski, Amir A. Yasseri, R. Stanley Williams
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Patent number: 7425375Abstract: An organic EL element of the present invention comprises a substrate, an electrode layer, an organic layer, and an electrode layer, whereas the organic layer 3 contains a vinyl polymer obtained by polymerizing a polymerizable monomer containing a compound represented by formula (1) or (2): wherein each of L1 and L2 is a bivalent group; each of X1, X2, X3, X4, X5, and X6 is alkyl group or the like; each of a and e is 0 or 1; each of b, f, g, and h is an integer of 0 to 3; c is an integer of 0 to 2; and d is an integer of 0 to 4.Type: GrantFiled: March 29, 2004Date of Patent: September 16, 2008Assignee: TDK CorporationInventors: Satoshi Shirai, Akira Ebisawa, Masahiro Shinkai, Emiko Kambe
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Patent number: 7396598Abstract: A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.Type: GrantFiled: June 20, 2002Date of Patent: July 8, 2008Assignee: Showa Denko K.K.Inventors: Masataka Takeuchi, Shuichi Naijo, Naoko Ito, Koro Shirane, Takeshi Igarashi, Yoshiaki Takahashi, Motoaki Kamachi
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Patent number: 7348073Abstract: A spiro-based compound containing cyclopentaphenanthrene and fluorene, which is used for an organoelectroluminescent device and an organoelectroluminescent device having the spiro-based compound. The spiro-based compound containing cyclopentaphenanthrene and fluorene can be easily manufactured to have high solubility, high color purity, and good thermal stability. The spiro-based compound containing cyclopentaphenanthrene and fluorene is suitable as a substance for an organic film, in particular, an emission layer of an organoelectroluminescent device. Further, the spiro-based compound containing cyclopentaphenanthrene and fluorene can be used as an organic dye, or an electron material such as a non-linear optical material.Type: GrantFiled: January 13, 2005Date of Patent: March 25, 2008Assignee: Samsung SDI Co., Ltd.Inventors: Kyu-Sik Kim, Woon-Jung Paek, Lyong-Sun Pu, In-Sung Song, Jong-Seob Kim, Ouck Han
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Publication number: 20080023672Abstract: The present invention provides novel polymer compositions comprising a polymeric component and a novel organic iridium compound comprising at least one cyclometallated ligand and at least one ketopyrrole ligand. The organic iridium compounds used in the polymer compositions are referred to as Type (1) organic iridium compositions and are constituted such that no ligand of the novel organic iridium compound has a number average molecular weight of 2,000 grams per mole or greater (as measured by gel permeation chromatography). Type (1) organic iridium compositions are referred to herein as comprising “organic iridium complexes”. In one aspect, the polymeric component may be an electroactive polymer. The novel polymer compositions of the invention are useful in optoelectronic electronic devices such as OLED devices and photovoltaic devices. In one aspect, the invention provides novel polymer compositions useful in the preparation of OLED devices exhibiting enhanced color properties and light output efficiencies.Type: ApplicationFiled: August 17, 2006Publication date: January 31, 2008Inventors: Kelly Scott Chichak, Kyle Erik Litz, James Anthony Cella, Joseph John Shiang, Qing Ye
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Publication number: 20080023671Abstract: The present invention provides compositions comprising at least one novel polymeric organic iridium compound which comprises at least one cyclometallated ligand and at least one ketopyrrole ligand. The polymeric organic iridium compositions of the present invention are referred to as Type (2) organic iridium compositions and are constituted such that at least one ligand of the novel organic iridium compound has a number average molecular weight of 2,000 grams per mole or greater (as measured by gel permeation chromatography). Type (2) organic iridium compositions are referred to herein as comprising “polymeric organic iridium complexes”. The novel organic iridium compositions are useful in optoelectronic electronic devices such as OLED devices and photovoltaic devices. In one aspect, the invention provides novel organic iridium compositions useful in the preparation of OLED devices exhibiting enhanced color properties and light output efficiencies.Type: ApplicationFiled: August 14, 2006Publication date: January 31, 2008Inventors: Kelly Scott Chichak, James Anthony Cella, Kyle Erik Litz, Joseph John Shiang, Qing Ye
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Patent number: 7288605Abstract: A method and apparatus for the removal of free, emulsified, or dissolved water from liquids of low volatility, such as oil, is shown. The liquid of low volatility is removed by contacting the fluid stream of concern with one side of a semi-permeable membrane. The membrane divides a separation chamber into a feed side into which the stream of fluid is fed, and a permeate side from which the water is removed. The permeate side of the chamber is maintained at a low partial pressure of water through presence of vacuum, or by use of a sweep gas.Type: GrantFiled: July 11, 2002Date of Patent: October 30, 2007Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.Inventors: Hartmut Krueger, Bert Fischer, Silvia Janietz, Armin Wedel, Juergen Wahl
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Publication number: 20070216292Abstract: The present invention provides a composite material having high conductivity, a light-emitting element and a light-emitting device using the composite material. Further, the present invention provides a manufacturing method of a light-emitting element which is suitable for mass production. A light-emitting element of the present invention includes a layer including a luminescent substance between a pair of electrodes. The layer including a luminescent substance has a composite material which includes an organic compound, and an inorganic compound showing an electron donating property to the organic compound. Since the light-emitting element of the present invention includes a composite material made by combining an organic compound and an inorganic compound, the carrier injecting property, carrier transporting property, and conductivity thereof are excellent, and thus, the driving voltage can be reduced.Type: ApplicationFiled: December 2, 2005Publication date: September 20, 2007Inventors: Satoshi Seo, Satoko Shitagaki, Hiroko Abe, Takako Takasu, Ryoji Nomura
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Publication number: 20070187673Abstract: A naphthylanthracene-based polymer comprising a repeating unit of the formula wherein: Ar is an aryl or substituted aryl of from 6 to 60 carbon atoms; or a heteroaryl or substituted heteroaryl of from 4 to 60 carbon atoms; R1, R2, and R3 are the same or different, and are each individually hydrogen, or alkyl, or alkenyl, or alkynyl, or alkoxy, or amino, or thioalkyl, or carboxyl, or carbonyl, wherein the alkyl, alkenyl, alkynyl, alkoxy, amino, thioalkyl, carboxy, or carbonyl can have from 1 to 40 carbon atoms; or aryl of from 6 to 60 carbon atoms; or heteroaryl of from 4 to 60 carbon atoms; or F, or Cl , or Br; or a cyano group; or a nitro group, or a sulfonate group; and L is a direct bond between naphthylanthracene and polymer backbone or a carbon linking group having 1 to 40 carbon atoms or a non-carbon linking group.Type: ApplicationFiled: March 29, 2005Publication date: August 16, 2007Inventors: Shiying Zheng, Kathleen Vaeth
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Publication number: 20070185294Abstract: Provided are a polyvinyl pyrrole host material emitting highly efficient phosphorescence, a luminescent layer using the material, and an organic electroluminescent display device. The polyvinyl pyrrole host material shows highly efficient luminescence having improved energy transfer, and thus is useful for an organic electroluminescent display device and other various light emitting devices.Type: ApplicationFiled: October 27, 2006Publication date: August 9, 2007Inventors: Jong-Jin Park, Byoung-Ki Choi, Tae-Yong Noh, O-Hyun Kwon, Myeong-Suk Kim, Yu-Jin Kim, Sang-Heon Hyun
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Publication number: 20070176174Abstract: A conducting polymer, the conducting polymer composition further including an ionomer, and an organic optoelectronic device including the conducting polymer or the composition are provided. The conducting polymer according to the embodiments of the present invention is a self-doped conducting polymer in which conducting polymer chains are grafted in a polyacid. The conducting polymer composition to the present invention is manufactured by blending the self-doped conducting polymer with an ionomer having a physical cross-linking property thereto, and thus they are homogeneously dissolved in water or organic solvents. The conducting polymer and the composition have a good film-forming property and can be easily blended with other organic polymers, and conductivity and a work function thereof is easily controlled according to the content of the ionomer. Also, optoelectronic devices including the conducting polymer composition have high efficiency and a long lifetime.Type: ApplicationFiled: January 9, 2007Publication date: August 2, 2007Inventors: Tae-Woo Lee, Jong-Jin Park, Joon-Yong Park, Mu-Gyeom Kim, Dal-Ho Huh
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Publication number: 20070167588Abstract: The present invention provides a polymer material showing high luminous efficiency at a low voltage and suitable for increasing the emission area and for the mass production, and an organic light emitting device using the same. The present invention relates to a polymer compound comprising a boron-containing monomer unit represented by formula (1): [in the formula, A represents a triphenyl boron group in which the phenyl group may be substituted, R16 represents a hydrogen atom or an alkyl group having 1 to 12 carbon atoms.Type: ApplicationFiled: December 10, 2004Publication date: July 19, 2007Applicant: SHOWA DENKO K.K.Inventors: Tsuyoshi Kato, Kunio Kondo
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Patent number: 7220468Abstract: It is an object to provide a conductive organic thin film having organic molecules that include at one end a terminal bonding group that is covalently bonded to a substrate surface, a conjugate bonding group that is located at any portion of the organic molecules and that is polymerized with other molecules, and a polar functional group that does not include active hydrogen and that is located at any portion between the terminal bonding group and the conjugate bonding group, wherein the organic molecules are oriented and their conjugate bonding groups are polymerized, forming a conduction network. The conductivity (?) of the conductive organic thin film at room temperature (25° C.) is at least 5.5×105 S/cm, and preferably at least 1×107 S/cm, without dopants, having significantly higher conductivity than metals such as gold and silver. In particular, a film of polypyrrole or polythienylene conjugate bonds that is polymerized through polymerization through electrolytic oxidation has high conductivity.Type: GrantFiled: July 19, 2006Date of Patent: May 22, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kazufumi Ogawa, Norihisa Mino, Shinichi Yamamoto
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Patent number: 7198829Abstract: It is an object to provide a conductive organic thin film having organic molecules that include at one end a terminal bonding group that is covalently bonded to a substrate surface, a conjugate bonding group that is located at any portion of the organic molecules and that is polymerized with other molecules, and a polar functional group that does not include active hydrogen and that is located at any portion between the terminal bonding group and the conjugate bonding group, wherein the organic molecules are oriented and their conjugate bonding groups are polymerized, forming a conduction network. The conductivity (?) of the conductive organic thin film at room temperature (25° C.) is at least 5.5×105 S/cm, and preferably at least 1×107 S/cm, without dopants, having significantly higher conductivity than metals such as gold and silver. In particular, a film of polypyrrole or polythienylene conjugate bonds that is polymerized through polymerization through electrolytic oxidation has high conductivity.Type: GrantFiled: December 25, 2001Date of Patent: April 3, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kazufumi Ogawa, Norihisa Mino, Shinichi Yamamoto
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Publication number: 20060257686Abstract: In functional inks for relief printing concerning the present invention, contents of compositions of functional layers can be 1.0-2.5 wt %. In addition, viscosity of functional ink for relief printing can be 15-50 mPa·s. Therefore, each functional layer can be formed with uniformity and reasonable thickness.Type: ApplicationFiled: May 10, 2006Publication date: November 16, 2006Inventors: Takahisa Shimizu, Koji Takeshita, Hironori Kawakami
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Publication number: 20060142520Abstract: A copolymeric material is described that is suitable for use in a hole transport layer of organic electroluminescent device. The copolymeric material contains a phosphorous-containing group selected from a phosphate or phosphonate group and tertiary amino group selected from a triarylamino group or carbazolyl group.Type: ApplicationFiled: December 27, 2004Publication date: June 29, 2006Inventors: Todd Jones, Sergey Lamansky, Tommie Kelley, Kevin Lewandowski, Fred McCormick
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Publication number: 20060083943Abstract: Compositions of a mixture of (A) a polymerisable compound, which undergoes polymerisation on exposure to heat or to actinic radiation, having the general formula wherein Q is an organic charge transporting fragment, L is a linker group, X is a group capable of undergoing free radical or anionic polymerisation on exposure to heat or actinic radiation, m is 0 or 1, and n is an integer having a value of 2 or more; and (B) a phosphorescent material are described, as is an organic light-emitting diode (OLED) device comprising at least one emissive layer that has been formed by polymerising such a composition. A method for forming an OLED, including depositing a layer containing the polymerisable composition from solution and exposing the layer to heat or actinic radiation to induce polymerisation, is also disclosed.Type: ApplicationFiled: March 3, 2003Publication date: April 20, 2006Inventors: Neil Maxted, Annette Steudel, Alan Mosley, Mark Andrews, Kal Look, Nigel Male
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Publication number: 20060040137Abstract: A first organic EL device in accordance with the present invention comprises a pair of electrodes opposing each other and a luminescent layer, disposed between the electrodes, containing a polymer having an anthracene structure; and a hole-transferring compound having a glass transition temperature of at least 70° C. A second organic EL device in accordance with the present invention comprises a hole injection electrode and an electron injection electrode which oppose each other; a luminescent layer, disposed between the hole injection electrode and electron injection electrode, containing a polymer having an anthracene structure and having a modified part, disposed near the surface on the side closer to the electron injection electrode, containing a hole-blocking compound having a bandgap of at least 4.0 eV; and an electron-blocking layer, disposed between the hole injection electrode and the luminescent layer, containing a hole-transferring compound having an electron affinity of 3.0 eV or less.Type: ApplicationFiled: August 12, 2005Publication date: February 23, 2006Applicant: TDK CORPORATIONInventors: Emiko Kambe, Akira Ebisawa
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Publication number: 20060008675Abstract: The present invention relates to highly reliable organic EL elements that can provide higher luminance with lower voltage and exhibit lower leak current at negative biases and appropriate diode properties. The organic EL element comprises a positive hole injecting layer, and a perfluoropolyether compound is incorporated into the positive hole injecting layer. Preferably, the perfluoropolyether compound is expressed by formula (1) or (2), R1—Rf—R2??formula (1) Rf—R3??formula (2) in which, R1, R2, and R3 represents one of a hydrogen atom, a fluorine atom, and a substituted group; Rf represents the perfluoropolyether skeleton expressed by the formula (3), in which, R4 and R5 represent general formula —CpF2p+1; n, m, x, and y are each an integer.Type: ApplicationFiled: July 29, 2005Publication date: January 12, 2006Applicant: FUJITSU LIMITEDInventors: Yuichiro Itai, Takashi Iida, Jun Kodama