Plural Carbocyclic Rings Containing Patents (Class 570/129)
  • Publication number: 20090128009
    Abstract: The present invention relates to novel materials which can be used in organic electronic devices, in particular electroluminescent devices, and are certain derivatives of fused aromatic systems.
    Type: Application
    Filed: May 16, 2006
    Publication date: May 21, 2009
    Applicant: Merck Patent GmbH
    Inventors: Holger Heil, Arne Buesing, Philipp Stoessel, Horst Vestweber
  • Publication number: 20090121623
    Abstract: A condensed polycyclic compound is represented by the following Formula [1]: wherein in Formula [1], R1 to R16 each represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, a substituted amino group, an aryl group that may optionally have a substituent group, or a heterocyclic group that may optionally have a substituent group, provided that at least one of R1, R2, R7 and R8 is an aryl group that may optionally have a substituent group, or a heterocyclic group that may optionally have a substituent group.
    Type: Application
    Filed: October 30, 2008
    Publication date: May 14, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masashi Hashimoto, Satoshi Igawa, Naoki Yamada, Takayuki Horiuchi
  • Publication number: 20090121186
    Abstract: The present invention was realized in order to provide a liquid crystal composition which is negative in dielectric constant anisotropy and having a large absolute value and a display element, and also to provide a compound which is negative in dielectric constant anisotropy and having a large absolute value. The present invention was realized in order to provide a trifluoronaphthalene derivative expressed by the general formula (I) a liquid crystal composition containing the above compound and a display element in which the liquid crystal composition is used. The liquid crystal composition of the present invention has features in which the dielectric constant anisotropy is great in absolute value, and a liquid crystal display element in which the liquid crystal composition is used as a constituting member is useful as a liquid crystal display element based on vertical alignment mode, IPS or others.
    Type: Application
    Filed: February 20, 2006
    Publication date: May 14, 2009
    Applicant: DAINIPPON INK AND CHEMICALS, INC.
    Inventor: Yutaka Nagashima
  • Patent number: 7524619
    Abstract: A coloring matter absorbing a near-infrared ray which comprises a diimonium salt containing a sulfonimide as an anion moiety, represented by the general formula (1): wherein R may be the same or different and represents a moiety selected from the group consisting of an alkyl group, a halogenated alkyl group, a cyanoalkyl group, an aryl group, a hydroxyl group, a phenyl group, and a phenylalkylene group, and R1 and R2 may be the same or different and each represent a fluoroalkyl group, or together form a fluoroalkylene group. The coloring matter absorbing a near-infrared ray is excellent in the resistance to heat and moisture, and thus exhibits an ability of absorbing a near-infrared ray not lowering for a long period of time.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: April 28, 2009
    Assignee: Japan Carlit Co., Ltd.
    Inventors: Susumu Yamanobe, Masaaki Tamura, Yoji Yamaguchi, Hideo Yamamoto
  • Patent number: 7524998
    Abstract: A dendron (2) comprising a focal point (4) and a plurality of fluorinated end groups (9) is disclosed, including one having a thiol, a silane, a carboxylic acid, a phosphonate or another moiety at the focal point suitable for chemisorption to a substrate (3). A self-assembled monolayer comprising a plurality of dendrons bonded to a substrate and a device comprising the self-assembled monolayer are also disclosed.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: April 28, 2009
    Assignees: Seiko Epson Corporation, Cambridge University Technical Service, Ltd.
    Inventors: Hitoshi Fukushima, Satoshi Nebashi, Masaya Ishida, Wilhelm J S Huck, Andrew B Holmes, Christine K Luscombe
  • Publication number: 20090103041
    Abstract: A compound represented by the following general formula (I). (In the formula, R1 is hydrogen or C1-8 alkyl; ring A is 1,4-phenylene, 1,4-trans-cyclohexylene, or 2,6-naphthylene; Z1 and Z2 each are —COO—, —OCO—, —CH2O—, —OCH2—, —CH2CH2—, —CH|CH—, —C?C—, or a single bond; m is 1 or 2; n is 0 or 1; X1 and X2 each are C1-3 alkyl or alkoxy or hydrogen, provided that when one of X1 and X2 is hydrogen, the other must not be hydrogen; Y1 and Y2 each are hydrogen, fluorine, or chlorine; Q is C1-8 saturated or unsaturated alkyl in which all or part of the hydrogen atoms are replaced by a halogen atom; and L is oxygen atom or a single bond.
    Type: Application
    Filed: March 14, 2006
    Publication date: April 23, 2009
    Applicant: ADEKA CORPORATION
    Inventors: Masatomi Irisawa, Tomohisa Miura, Hirokatsu Shinano
  • Publication number: 20090096368
    Abstract: The present invention provides a high-performance organic EL device and a novel compound used for the device. The novel compound of the present invention is a fluoranthene compound having a specific structure. The organic EL device of the present invention is an organic EL device comprising: an anode; a cathode; and an organic compound layer interposed between the anode and the cathode, wherein the organic compound layer has the fluoranthene compound.
    Type: Application
    Filed: April 19, 2007
    Publication date: April 16, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Jun Kamatani, Shinjiro Okada, Takao Takiguchi, Akihito Saitoh, Keiji Okinaka, Satoshi Igawa, Naoki Yamada, Masashi Hashimoto
  • Publication number: 20090091252
    Abstract: The present invention provides a novel binaphthyl compound and an organic light emitting element having a good light emitting efficiency and a high durability at a low driving voltage.
    Type: Application
    Filed: October 2, 2008
    Publication date: April 9, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsuya Kosuge, Jun Kamatani, Shigemoto Abe, Ryota Ooishi, Kengo Kishino
  • Publication number: 20090086139
    Abstract: A liquid crystal is provided, which can be used in a liquid crystal display (LCD) to provide an LCD exhibiting a good transmittance. The liquid crystal according to the invention has the following properties: (i) a dielectric anisotropy (??) ranging from about ?2.5 to about ?5; (ii) a splay elastic constant (K11) ranging from about 1.1×10?11 N to about 1.6×10?11 N; (iii) a bend elastic constant (K33) ranging from about 1.1×10?11 N to about 1.6×10?11 N; and (iv) ??, K11 (N) and K33 (N) conforming to the following equation: K 11 + K 33 ? 10 × ? ? ? ? ? < 1.28 × 10 - 12 . A liquid crystal material combination is also provided which comprises the liquid crystal according to the invention above mentioned and a polymerizable monomer.
    Type: Application
    Filed: January 23, 2008
    Publication date: April 2, 2009
    Applicant: AU OPTRONICS CORP.
    Inventors: Chia-Hsuan Pai, Chao-Yuan Chen, Te-Sheng Chen, Jenn-Jia Su
  • Publication number: 20090088570
    Abstract: An organic electroluminescent device, which has, between a pair of electrodes, at least one organic layer including a light-emitting layer, in which the organic layer contains a specific tetraphenylene compound, and in which the light-emitting layer contains a phosphorescent material; and a specific tetraphenylene compound that can be used in the device.
    Type: Application
    Filed: November 20, 2008
    Publication date: April 2, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Jun OGASAWARA, Tatsuya Igarashi, Satoshi Sano
  • Publication number: 20090065739
    Abstract: A compound represented by formula (1): wherein R1 is hydrogen or alkyl having 1 to 20 carbons, in which in the alkyl, arbitrary —CH2— may be replaced by —O—, —S—, —COO—, —CH?CH— or —C?C—, and arbitrary hydrogen may be replaced by halogen or alkyl having 1 to 3 carbons; ring A1, ring A2, ring A3, ring A4 and ring A5 are each independently a benzene ring, a piperidine ring, a tetrahydropyrane ring or a dioxane ring, in which in the rings, arbitrary hydrogen may be replaced by halogen, alkyl having 1 to 3 carbons, alkoxy having 1 to 3 carbons or halogenated alkyl having 1 to 3 carbons, and —CH? may be replaced by —N?; Z1, Z2, Z4, Z5 and Z6 are each independently a single bond, —COO— or —CF2O—; Z3 is a single bond or —CF2O—, and in the case where Z3 is a single bond, ring A3 is a ring represented by formula (RG-5), or L1 and L2 are both fluorine, or at least one of Z1, Z2, Z4, Z5 and Z6 is —CF2O—; L1, L2, L3 and L4 are each independently hydrogen or halogen; X1 is hydrogen, halogen, —C?N, —N?C?S, —C?C—C?N, —S
    Type: Application
    Filed: August 21, 2008
    Publication date: March 12, 2009
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Yasuhiro HASEBA, Masayuki SAITO
  • Publication number: 20090062570
    Abstract: The invention provides a host material for organic light emitting diodes, having the general formula: wherein R1 is selected from a C1-8 alkyl group, each R2 is independently selected from a hydrogen or a C1-8 alkyl group, Ar is selected from a C5-14 aromatic or hetero aromatic group, R3 is selected from a C5-14 aromatic or hetero aromatic group, a C1-8 alkyl group, a C5-8 cycloalkyl group, a C1-8 fluoroalkyl group, or a C1-8 alkoxyl group, and n is an integer of 1-10. The host materials have a higher energy gap (greater than 4.0 eV), and high thermal stability.
    Type: Application
    Filed: December 10, 2007
    Publication date: March 5, 2009
    Inventors: Chien-Hong Cheng, Jin-Ju Lin
  • Patent number: 7488856
    Abstract: The invention relates to fluoranthene derivatives of the general formula (I) in which R1, R2, R3 and a are each defined according to the description, with the proviso that at least one of the R1 or R2 radicals is not hydrogen, to processes for their preparation and to the use of the fluoranthene derivatives as emitter molecules in organic light-emitting diodes (OLEDs), to a light-emitting layer comprising the inventive fluoranthene derivatives as emitter molecules, to an OLED comprising the inventive light-emitting layer and to devices comprising the inventive OLED.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: February 10, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold Schwalm, Yvonne Heischkel, Andreas Fechtenkoetter, Joachim Roesch, Florian Doetz
  • Publication number: 20090023957
    Abstract: An object of the present invention relates to provision of a terphenylene derivative having excellent oxidation resistance and capable of forming a semiconductor active phase by a coating process and an oxidation-resistant organic semiconductor material using the sane, as well as an organic thin film. The invention relates to production of a terphenylene derivative represented by the formula (1) by tetralithiating a tetrahaloterphenyl derivative with a lithiating agent and subsequently treating the resulting compound with a copper compound: wherein R1 to R14 are the same or different and each represents a hydrogen atom, a fluorine atom, a chlorine atom, an aryl group having 4 to 30 carbon atoms, an alkynyl group having 3 to 20 carbon atoms, an alkenyl group having 2 to 30 carbon atoms, an alkyl group having 1 to 20 carbon atoms or a halogenated alkyl group having 1 to 20 carbon atoms, or a diarylamino group having 8 to carbon atoms; and l, m, and n each represents an integer of 0 or 1.
    Type: Application
    Filed: March 28, 2006
    Publication date: January 22, 2009
    Applicant: TOSOH CORPORATION
    Inventors: Makoto Watanabe, Tomokazu Ohashi, Toshihide Yamamoto
  • Publication number: 20080319235
    Abstract: In a process for the preparation of ring compounds via a combinatorial synthesis, the reaction procedure is based on a Suzuki coupling, subsequent halo-demetallation and finally a further Suzuki coupling. The Suzuki couplings are each carried out with a boronic acid or a boronic acid ester. The reaction procedure uses provides novel ring compounds and uses novel synthesis units used for this purpose. The novel ring compounds are suitable for use as constituents in liquid-crystalline mixtures.
    Type: Application
    Filed: August 8, 2008
    Publication date: December 25, 2008
    Inventors: Detlef PAULUTH, Peer Kirsch, Peter Baeuerle, Oliver Deeg
  • Publication number: 20080299294
    Abstract: The present invention discloses an anthracene compound which can be used as emitting material in organic electroluminescence devices is disclosed. The mentioned anthracene compound is represented by the following formula [I] Wherein Ar1 and Ar2 are the same or different and each is selected from a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted anthryl group.
    Type: Application
    Filed: June 4, 2007
    Publication date: December 4, 2008
    Inventor: Feng-Wen Yen
  • Publication number: 20080297040
    Abstract: There is provided a charge transport compound having the formula T-LG-T, where T is a charge transport moiety having the formula —Ar1-An-Ar2 and LG is a linking group. In the compound, An is a divalent anthracene moiety; Ar1 is a single bond or an aromatic group which can be naphthyl, binaphthyl, naphthylphenylene, naphthylbiphenylene, or naphthylbinaphthylene; Ar2 is an aromatic group which can be naphthyl, binaphthyl, naphthylphenylene, naphthylbiphenylene, or naphthylbinaphthylene; and LG can be biphenylene, binaphthylene, or Formula I In Formula I, Q1 and Q2 are the same or different can be alkyl and aryl, or Q1 and Q2 taken together can be alkylene; and Ar3 and Ar4 are the same or different and can be phenylene or naphthylene.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 4, 2008
    Inventor: WEISHI WU
  • Publication number: 20080277623
    Abstract: The invention relates to liquid-crystalline compounds of the formula I and to a liquid-crystalline medium based on a mixture of polar compounds, characterised in that it comprises one or more compounds of the formula I in which R1, X, L1, L2 and L3 have the meanings indicated in Claim 1.
    Type: Application
    Filed: June 8, 2005
    Publication date: November 13, 2008
    Inventors: Atsutaka Manabe, Elvira Montenegro, Detlef Pauluth
  • Patent number: 7439407
    Abstract: Fluorinated pentacene derivatives, for example, the novel compounds tetradecafluoropentacene, 5,6,7,12,13,14-hexafluoropentacene, 5,7,12,14-tetrafluoropentacene, and 6,13-difluoropentacene, and intermediates therefor are provided. And a method of producing fluorinated pentacene derivatives and intermediates therefor is also provided. Pentacene derivatives fluorinated at desired positions of the pentacene skeleton are obtained by introducing the oxo group, hydroxyl group, or alkoxyl group into the pentacene skeleton followed by fluorination with sulfur tetrafluoride and partial defluorination using a reducing agent.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: October 21, 2008
    Assignee: Kanto Denta Kogyo Co., Ltd.
    Inventors: Masafumi Kobayashi, Osamu Omae, Kimitaka Ohkubo, Yuan Gao
  • Patent number: 7407691
    Abstract: Provided are a liquid-crystal compound and a liquid-crystal composition containing the compound, of which the advantages are that they show nematic hybrid orientation on a rubbed TAC substrate, they are polymerizable in open air and they readily give a polymer having a high degree of polymerization even when exposed to a relatively small total quantity of light. The films formed by photopolymerizing them keep nematic hybrid orientation. The compound is represented by formula (1): wherein R1 is a hydrogen or an alkyl; R2 is a hydrogen, —OCF3, etc.; A1 is a 1,4-phenylene, etc.; A2 and A3 are independently a 1,4-cyclohexylene, a 1,4-phenylene, etc.; X1 is a single bond, —O—, etc.; X2 and X3 are independently a single bond, —COO—, —C?C—, —CONH—, etc.; m is an integer of from 0 to 20; and n is 1 or 0.
    Type: Grant
    Filed: March 21, 2005
    Date of Patent: August 5, 2008
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Ryushi Shundo, Tomohiro Etou, Masami Kimura
  • Publication number: 20080160347
    Abstract: Provided is a benzofluorene compound which exhibits excellent performances when applied to an organic electroluminescent device. In the benzofluorene compound, a central five-membered ring in a benzofluorene skeleton is substituted with aryl, and a benzene ring condensed to the five-membered ring is substituted with aryl, diarylamino and the like.
    Type: Application
    Filed: October 3, 2007
    Publication date: July 3, 2008
    Inventors: Guofang Wang, Akiko Kageyama, Toshihiro Koike, Manabu Uchida
  • Publication number: 20080145708
    Abstract: The present invention relates to the improvement of organic electroluminescent devices, in particular blue-emitting devices, by using compounds of the formula (1) as dopants in the emitting layer.
    Type: Application
    Filed: March 20, 2006
    Publication date: June 19, 2008
    Applicant: Merck Patent GmbH
    Inventors: Holger Heil, Philip Stoessel, Horst Vestweber, Rocco Fortte
  • Publication number: 20080124577
    Abstract: A novel organic compound and a high-performance organic light-emitting element containing the same. The organic light-emitting element contains a novel compound having a fluoranthene structure.
    Type: Application
    Filed: April 18, 2007
    Publication date: May 29, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Akihito Saitoh, Keiji Okinaka, Satoshi Igawa, Naoki Yamada, Chika Negishi, Takao Takiguchi, Shinjiro Okada
  • Patent number: 7374700
    Abstract: Provided is a liquid crystalline compound which has a large value of refractive index anisotropy, exhibits a liquid crystal phase in a wide temperature range, and is stable under use conditions. It is a liquid crystalline compound represented by the following formula (1): wherein the symbols in the formula have the following meanings: R1, R2: each independently, an alkyl group, an alkenyl group, an alkoxy group, a halogen atom or a cyano group, wherein at least one hydrogen atom in each of the alkyl, alkenyl and alkoxy groups may be replaced with a chlorine or fluorine atom; ring A, ring B: each independently, a trans-1,4-cyclohexylene group or a 1,4-phenylene group, wherein a hydrogen atom in each of these rings may be replaced with a chlorine atom, fluorine atom or methyl group; X1, X2: each independently, a hydrogen or fluorine atom; n: 0 or 1.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: May 20, 2008
    Assignee: Asahi Glass Company, Limited
    Inventors: Yuriko Kaida, Makoto Hasegawa
  • Publication number: 20080105865
    Abstract: An object is to provide a pyrene based compound that is good in both properties of light emission and mobility when the compound is used as a light emitting transistor element; and a light emitting transistor element wherein this specific pyrene based compound is used. A pyrene based compound represented by the following chemical formula (1) is used as a main component of a light emitting layer in a light emitting transistor element: (wherein R1 represents a group selected from a heteroaryl group which may have a substituent, an aryl group which may have a substituent except a phenyl group which does not have any substituent, an alkyl group which may have a substituent and has a main chain having 1 to 20 carbon atoms, an alkenyl group which may have a substituent, an alkynyl group which may have a substituent, a silyl group which may have a substituent, and a halogen atom.
    Type: Application
    Filed: November 25, 2005
    Publication date: May 8, 2008
    Inventors: Takahito Oyamada, Hiroyuki Uchiuzou, Chihaya Adachi, Seiji Akiyama, Takayoshi Takahashi
  • Publication number: 20080088789
    Abstract: The invention relates to a liquid-crystalline medium, characterised in that it comprises one or more compounds of the formula I in which R1, R2 and X1-12 have the meanings indicated in Claim 1.
    Type: Application
    Filed: October 11, 2007
    Publication date: April 17, 2008
    Inventors: Michael Wittek, Brigitte Schuler, Elvira Montenegro
  • Patent number: 7358406
    Abstract: This invention relates to electroluminescent fluorinated pyrene compounds. It also relates to electronic devices in which the active layer includes an electroluminescent fluorinated pyrene compound.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: April 15, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Alex Sergey Ionkin, Ying Wang
  • Patent number: 7351452
    Abstract: A compound of formula (I) or a dimer thereof; where R1 and R2 are independently selected from optionally substituted alkyl, optionally substitituted alkenyl, optionally substituted alkynyl, a functional group or a group of sub-formula (i) —(O)m—(CH2)p—R7??(i) where m is 0 or 1; p is an integer of from 1 to 12; R7 is a group of formula —CqX2q+1 where q is an integer of from 1 to 12 and X is halogen such as fluoro, or R7 a group of sub-formula (ii) where k is an integer of from 1 to 10, R8, R10, and R12 and each R9 and R11 are independently selected from alkyl, alkenyl or aryl, such as lower alkyl and in particular methyl; provided that at least one of R1 or R2 is a group of sub-formula (i); R3, R4, R5 and R6 are independently selected from hydrogen or halogen, and in particular fluorine, n is 0 or 1, and A is a ring structure as specified. Compounds of formula (I) may have liquid crystal properties and/or be useful in liquid crystal devices.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: April 1, 2008
    Assignee: Qinetiq Limited
    Inventors: John W Goodby, Michael Hird, Kenneth J Toyne, Chu C Dong, Robert D. C Richards
  • Patent number: 7321050
    Abstract: The present invention provides novel diphenyl ethene compounds and pharmaceutically-acceptable salts thereof. Also provided are methods for making the compounds of the invention as well as methods for the use thereof in the treatment of immune, inflammatory, and auto-immune diseases.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: January 22, 2008
    Assignee: Welichem Biotech Inc.
    Inventors: Genhui Chen, John M. Webster, Jianxiong Li, Kaji Hu, Wei Liu, Jiang Zhu
  • Patent number: 7318950
    Abstract: The invention relates to chiral compounds of formula (I) R1—X1-(A1-Z1)m-G-(Z2-A2)n-X2—R2, wherein R1, R2, X1, X2, A1, A2, Z1, Z2, G, m and n have the meaning given in claim 1, to liquid crystalline mixtures comprising at least one chiral compound of formula (I), to chiral linear or crosslinked liquid crystalline polymers obtainable by polymerizing a polymerizable mixture comprising at least one chiral compound of formula (I), to the use of chiral compounds of formula (I) and mixtures and polymers obtained thereof in liquid crystal displays, active and passive optical elements, adhesives, synthetic resins with anisotropic mechanical properties, cosmetic and pharmaceutical compositions, diagnostics, liquid crystal pigments, for decorative and security applications, nonlinear optics, optical information storage or as chiral dopants, and to a liquid crystal display comprising a mixture comprising at least one chiral compound of formula (I).
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: January 15, 2008
    Assignee: Merck GmbH
    Inventors: Peer Kirsch, Andreas Tangerbeck, Detlef Pauluth, Joachim Krause, Michael Heckmeier, Kazuaki Tarumi
  • Patent number: 7316830
    Abstract: The invention relates to liquid-crystalline phenol esters of the formula I in which R, A1, Z1, m, L and Y are as defined in Claim 1, to liquid-crystalline media comprising at least one phenol ester of the formula I, and to electro-optical displays containing such a liquid-crystalline medium.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: January 8, 2008
    Assignee: Merck Patent GmbH
    Inventors: Volker Reiffenrath, Michael Heckmeier, Eike Poetsch, Joachim Krause, Werner Binder, Brigitte Schuler, Achim Götz
  • Patent number: 7294371
    Abstract: Provided are a liquid crystal compound represented by formula 1, a liquid crystal composition including the same, and a liquid crystal display including the liquid crystal composition: wherein X1, X2, R1, R2, L and are the same as described in specification. High optical anisotropy and negative dielectric anisotropy can be achieved by the use of the liquid crystal composition including the liquid crystal compound.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: November 13, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-seob Kim, Yoon-sok Kang, Jee-hwan Jang, Jong-min Wang, Byung-soon Chen
  • Patent number: 7279202
    Abstract: A vertical alignment liquid crystalline compound containing a laterally substituted aromatic cyclic moiety. The liquid crystalline compound has a wide temperature range of the nematic phase, a high optical anisotropy and a high negative dielectric anisotropy. In addition, since the rotation viscosity and the K33/K11 ratio of the liquid crystalline compound are maintained at a low level, the liquid crystalline compound can be effectively used as a liquid crystalline medium having good image quality and a high response speed even when applied to thin liquid crystalline cells.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: October 9, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun Kyung Lee, Jee Hwan Jang, Jong Seob Kim, Ji Young Jong, Hyung Soo Cho
  • Patent number: 7270856
    Abstract: The invention relates to novel cyclobutane derivatives of the formula (I), in which R1, R2, A, Z, m, n and o have the meaning indicated in claim 1, to the use thereof as components of liquid-crystalline media, and to liquid-crystal and electro-optical display elements which contain the liquid-crystalline media according to the invention
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: September 18, 2007
    Assignee: Merck Patent GmbH
    Inventors: Andreas Taugerbeck, Michael Heckmeier, Peer Kirsch, Georg Luessem, Eike Poetsch
  • Patent number: 7250199
    Abstract: Novel phenylcyclohexanes of the formula I in which n is 0 to 7, Q1 and Q2 are H, or one of these radicals is alternatively CH3, r is 0, 1, 2, 3, 4 or 5, A is trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or a single bond, X is F, Cl, —CF3, —CN, —OCF3 or —OCHF2, and Y and Z are each, independently of one another, H or F, with the proviso that, in the case where A is a single bond, Q1=Q2=H and simultaneously X=CN, Y and/or Z are F.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: July 31, 2007
    Assignee: Merck Patent GmbH
    Inventors: Andreas Wachtler, Reinhard Hittich, Eike Poetsch, Herbert Plach, David Coates, Bernhard Rieger, Joachim Krause
  • Patent number: 7220784
    Abstract: The present invention relates to stilbene and quinone compounds related to combretastatin A-4 and their use as anticancer compounds and prodrugs. The compounds include those with an alkyl group on the double bond of cis or trans-stilbenes, compounds with one or more (and preferably 2 or 3) alkyl group substituents on the stilbene A ring, compounds with an alkoxy group other than methoxy at position 3, 4, and/or 5 of the stilbene A ring, compounds (or prodrugs) in which BOC amino acid esters are formed with the phenolic hydroxyl at the 3-position of the B ring and compounds (or prodrugs) based on a benzoquinone B ring. The present invention further relates to the photochemical reactions of stilbene compounds, either the above compounds disclosed for the first time herein or compounds based on prior art stilbenes.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: May 22, 2007
    Inventors: John Anthony Hadfield, Alan Thomson McGown, Stephen Patrick Mayalarp, Edward John Land, Ian Hamblett, Keira Gaukroger, Nicholas James Lawrence, Lucy Annette Hepworth, John Butler
  • Patent number: 7183447
    Abstract: In a process for the preparation of ring compounds via a combinatorial synthesis, the reaction procedure is based on a Suzuki coupling, subsequent halo-demetallation and finally a further Suzuki coupling. The Suzuki couplings are each carried out with a boronic acid or a boronic acid ester. The reaction procedure uses provides novel ring compounds and uses novel synthesis units used for this purpose. The novel ring compounds are suitable for use as constituents in liquid-crystalline mixtures.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: February 27, 2007
    Assignee: Merck Patent GmbH
    Inventors: Detlef Pauluth, Peer Kirsch, Peter Baeuerle, Oliver Deeg
  • Patent number: 7182885
    Abstract: Fluorinated indenes and 1,7-dihydroindacenes of the general formulae (I) and (II) of negative dielectric anisotropy (??<0) in which T, A, R, L, X, Y, U, W, Z, n, m, p and q are as defined herein are suitable for use in liquid crystal display elements.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: February 27, 2007
    Assignee: Merck Patent GmbH
    Inventors: Lars Lietzau, Melanie Klasen-Memmer, Matthias Bremer
  • Patent number: 7135210
    Abstract: The invention relates to liquid crystal compounds of formula (I), where X1, X2, X3, Z1, Z2, L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11 and a have the meanings given in claim 1, and liquid crystal media containing at least one compound of formula (I) and electro-optical displays comprising such a liquid crystal medium
    Type: Grant
    Filed: October 14, 2002
    Date of Patent: November 14, 2006
    Assignee: Merck Patent GmbH
    Inventors: Peer Kirsch, Detlef Pauluth, Andreas Ruhl, Joachim Krause, Kazuaki Tarumi, Michael Heckmeier
  • Patent number: 7125589
    Abstract: A compound represented by the following formula (1), a composition comprising the composition and an element comprising the composition: Ra is alkyl having 1 to 15 carbons and so forth; A1, A2 and A3 are 1,4-cyclohexylene and so forth; Z1, Z2 and Z3 are a single bond and so forth; n and m are 0 or 1; and phenyl having (F)p is phenyl, 2-fluorophenyl and so forth.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: October 24, 2006
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Keiji Kimura, Shuichi Matsui
  • Patent number: 7122710
    Abstract: The present invention is directed towards the fluorination of polymeric C60 and towards the chemical and physical modifications of polymeric C60 that can be accomplished through fluorination.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: October 17, 2006
    Assignee: Wiiliam Marsh Rice University
    Inventors: John L. Margrave, Valery N. Khabashesku, Zhenning Gu, Valery Aleksandrovich Davydov, Aleksandra Viktorovna Rakhmanina, Lyudmile Stepanovna Kashevarova
  • Patent number: 7122228
    Abstract: The invention relates to indanes having negative ?? of the formula Ia or Ib in which R, A, Z, X, Y, V, W, n and m are as defined in claim 1. The compounds are particularly suitable for producing VA-TFT displays.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: October 17, 2006
    Assignee: Merck Patent GmbH
    Inventors: Volker Reiffenrath, Michael Heckmeier, Matthias Bremer
  • Patent number: 7087272
    Abstract: The invention relates to fluorinated fluorene derivatives of negative DC anisotropy, of the formula I R1—(—A1—Z1—)k1—(—A2—Z2—)k2—W—(—Z3—A3—)k3—(—Z4—A4—)k4—R2I in which W denotes the sub-formula L1 and L2, independently of one another, are H, F, Cl, —CH2F, —CHF2 or —CF3, with the proviso that L1 and L2 are not both H, L3 and L4, independently of one another, are H or F, and R1, R2, A1, A2, A3, A4, Z1, Z2, Z3, Z4, k1, k2, k3 and k4 are as defined above. The invention furthermore relates to liquid-crystalline media and to optical and electro-optical display elements.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: August 8, 2006
    Assignee: Merck Patent GmbH
    Inventors: Matthias Bremer, Detlef Pauluth, Melanie Klasen-Memmer
  • Patent number: 7083832
    Abstract: The invention provides LC compositions that exhibit V-shaped switching when aligned in an analog device configuration and exhibit bistability when aligned in a bookshelf-type device configuration. The invention more specifically provides LC compositions of formula 1 and particularly chiral nonracemic compounds of formula 1 which exhibit bistable switching as well as V-shaped switching when aligned in appropriate device configurations. The invention also provides methods of using the compounds of the invention in making LC compositions and electooptical devices comprising an aligned layer of the compositions of this invention.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: August 1, 2006
    Assignee: Displaytech, Inc.
    Inventors: Michael Wand, Neil Gough, Xin Hua Chen
  • Patent number: 7081279
    Abstract: Liquid crystalline compounds having a large negative ?? low viscosity, a large K33/K11 value, a small ??/?? and mutually excellent solubility even at low temperature, compositions containing at least one of the compounds and liquid crystal display devices containing such a liquid crystal compositions are disclosed.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: July 25, 2006
    Assignee: Chisso Corporation
    Inventors: Takashi Kato, Tomoyuki Kondo, Henry Bernhardt, Shuichi Matsui, Hiroyuki Takeuchi, Yasuhiro Kubo, Fusayuki Takeshita, Etsuo Nakagawa
  • Patent number: 7074462
    Abstract: The invention relates to compounds of the formula I and to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I in which R, A1, A2, Z1, Y, Z, L1, L2 and m are as defined herein.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: July 11, 2006
    Assignee: Merck Patent GmbH
    Inventors: Matthias Bremer, Michael Heckmeier, Joachim Krause, Detlef Pauluth, Achim Götz, Brigitte Schuler
  • Patent number: 7070838
    Abstract: The present invention provides a compound represented by formula (1) defined in the specification and a liquid crystal composition comprising the compound. The invention further provides a polymer obtained by polymerization of compound or composition above, and further the present invention provides a film, an optical anisotropic material, A ¼ or ½ wavelength functional plate, an optical compensation element, an optical element and a liquid crystal display element employing the polymer.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: July 4, 2006
    Assignees: Chisso Petrochemical Corporation, Chisso Corporation
    Inventors: Yasuyuki Sasada, Motoki Yanai
  • Patent number: 7041347
    Abstract: Liquid-crystalline media comprising one or more compounds of the formula I in which Ra, Rb, L and r are as defined herein, are suitable for use in, for example, TN and STN liquid crystal displays
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: May 9, 2006
    Assignee: Merck Patent GmbH
    Inventors: Harald Hirschmann, Martina Weidner, Sven Schüpfer, Renate Graulich, Mark John Goulding, Martin Heeney, Warren Duffy
  • Patent number: 7033652
    Abstract: Liquid-crystalline media comprising at least one compound of the formula I in which X, L1, L2 and L3 are as defined herein, are useful for use in electro-optical displays.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: April 25, 2006
    Assignee: Merck Patent GmbH
    Inventors: Michael Heckmeier, Martin Engel, Brigitte Schuler, Volker Reiffenrath
  • Patent number: 7029730
    Abstract: The invention relates to CF2O-bridged cyclohexane derivatives, in particular compounds of formula (I), R1-(-A1-Z1-)k1-Q-CF2O-A2-(-Z3-A3-)K3-R2, wherein Q represents group (a); W1, W2 represent —CH2— and/or —O— independendy from each other, X1, X2, X3, X4 represent H, F, —CH3—CH2F—CH2F and/or —CF3 independently from each other, provided that at least one substituent X1, X2, X3 and/or X4 does not represent H, Z2 represents a simple bond, —CH2—CH2— or —CF2—CF2—, m represents 0 or 1 and R1, R2, A1, A2, A3, Z1, Z3, k1 and k3 have the meaning cited in the description. The invention further relates to liquid crystal substances such as optical and electro-optical display elements.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: April 18, 2006
    Assignee: Merck Patent GmbH
    Inventors: Peer Kirsch, Andreas Taugerbeck, Detlef Pauluth, Joachim Krause, Kazuaki Tarumi, Georg Lüssem