Containing Nonsteryl Liquid Crystalline Compound Of Specified Structure Patents (Class 252/299.6)
  • Patent number: 11027476
    Abstract: A multiple screw extruder (50) combines application of vacuum to a vacuum vent (62) positioned between material feed locations (70, 72) of the extruder and use of specially configured extruder screws (58) to extract gases, primarily air, out of the extruder to densify the materials introduced into it and to extract unwanted fluid from material introduced for mixture with molten polymeric material flowing through the extruder. The multiple screw extruder is operationally versatile in that it is capable of carrying out the material densification and fluid extraction processes either separately or simultaneously. Implementation of the disclosed vacuum feed technology provides an increase in rate of extrudate throughput as compared with that achievable by implementation of atmospheric venting (16) in a conventionally configured extruder (10a, 10b).
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: June 8, 2021
    Assignee: Entek Manufacturing LLC
    Inventors: Colt Aaron McDaniel, Dean Justin Elliott, Craig Allen Benjamin
  • Patent number: 10994999
    Abstract: Disclosed herein is an agricultural composition for facilitating treatment of a plant, in accordance with some embodiments. Accordingly, the agricultural composition may include carbanions and a diluting agent. Further, a carbanion of the carbanions may include a carbon atom. Further, the carbon atom may include a formal charge of ?1. Further, the diluting agent may be capable of dissolving the carbanions for forming a solution. Further, the dissolving of the carbanions may include diluting the carbanions. Further, a ratio of the diluting agent to the carbanions by volume ranges from 50:1 to 550:1. Further, the dissolving facilitates at least one application of the solution to the plant.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: May 4, 2021
    Inventor: Donald Richard Wilshe
  • Patent number: 10988692
    Abstract: The invention relates to a medium comprising at least 60% of one or more compounds of formula I wherein R11, R12, MG11, MG12 and Sp1 have the meaning given herein below, to the use of such media in liquid crystal devices, in particular in flexoelectric liquid crystal devices, and to a flexoelectric liquid crystal device comprising a liquid crystal medium according to the present invention.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: April 27, 2021
    Assignee: Merck Patent GmbH
    Inventors: Simon Siemianowski, Konstantin Schneider
  • Patent number: 10954442
    Abstract: The invention is directed to a method for the preparation of a liquid crystal block copolymer, comprising melt polycondensation of a melt comprising at least two non-latent aromatic monomers and a latent aromatic monomer.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: March 23, 2021
    Assignee: Allotropica Technologies, Inc.
    Inventor: Theodoras Jacobus Dingemans
  • Patent number: 10782567
    Abstract: An object of the present invention is to provide an optical film having an optically-anisotropic layer having excellent durability, a polarizing plate and an image display device in which the optical film is used, a polymerizable compound used in the optical film, and a method for manufacturing a 1,4-cyclohexanedicarboxylic acid monoaryl ester. The optical film of the present invention is an optical film having at least an optically-anisotropic layer, in which the optically-anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a polymerizable compound which has a specific structure, a liquid crystal compound which has a specific structure, and a polymerization initiator.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: September 22, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Keita Takahashi, Hiroshi Matsuyama, Naozumi Shiraiwa, Taiji Katsumata, Yuuta Fujino, Hiroshi Sato, Kiyoshi Takeuchi, Hiroyuki Hagio, Aiko Yoshida, Hiroaki Nakatsugawa
  • Patent number: 10768498
    Abstract: A liquid crystal display device includes a first substrate, a second substrate facing the first substrate, and a liquid crystal layer interposed between the first substrate and the second substrate. The liquid crystal layer includes liquid crystal molecules having a negative dielectric anisotropy, a response speed of about 4.0 ms or less, and a rotational viscosity of about 47 mPa·S to about 75 mPa·S.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: September 8, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soon Joon Rho, Kyungmin Kim, Jin-Lak Kim, Hyelim Jang
  • Patent number: 10655065
    Abstract: A liquid crystal compound comprising a specific compound having a positive dielectric anisotropy as the first component, and a specific compound having a low viscosity as a second component. Further, the liquid crystal compound may contain a specific compound having a positive dielectric anisotropy as the third component, a specific compound having a maximum temperature or a low viscosity as the fourth component, or a specific compound having a negative dielectric anisotropy as the fifth component.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: May 19, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Maiko Matsukuma, Masayuki Saito
  • Patent number: 10570335
    Abstract: The present invention relates to a liquid crystal (LC) medium comprising polymerisable compounds, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, and to LC displays comprising it.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: February 25, 2020
    Assignee: Merck Patetn GmbH
    Inventors: Dong-Mee Song, Ki-Sun Kwon, Hoo-Yong Lee, Melanie Klasen-Memmer, Christian Schoenefeld, Konstantin Schneider, Matthias Koch, Joerg Peschke, Matthias Bremer, Nils Greinert
  • Patent number: 10570334
    Abstract: Shown is a bimesogenic compound having high solubility in a liquid crystal compound, a liquid crystal composition, a chiral dopant, an additive including an antioxidant or an ultraviolet light absorber, and a polymerizable liquid crystal compound, each of which is used in other bimesogenic compounds or a liquid crystal display device, while maintaining desired physical properties. A compound is represented by formula (1), a liquid crystal composition contains the compound, conjugate fibers with an encapsulated liquid crystal obtained from the liquid crystal composition, and a liquid crystal display device is obtained from the conjugate fibers with the encapsulated liquid crystal.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: February 25, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Michiko Sawada, Yasuyuki Sasada
  • Patent number: 10513657
    Abstract: The present invention relates to liquid-crystalline media (LC media) having negative or positive dielectric anisotropy, comprising a low-molecular-weight component and a polymerizable component. The polymerizable component comprises self-aligning, polymerizable mesogens (polymerizable self-alignment additives) which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The invention therefore also encompasses LC displays having homeotropic alignment of the LC medium without alignment layers. The invention discloses novel structures for self-alignment additives which have a certain position of the functional groups.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: December 24, 2019
    Assignee: Merck Patent GmbH
    Inventors: Graziano Archetti, Izumi Saito, Rocco Fortte, Thorsten Kodek
  • Patent number: 10479940
    Abstract: A liquid crystal compound having positive dielectric anisotropy is provided and contains a compound represented by formula (1) as a first component, a compound represented by formula (2) as a second component, a polar compound as a first additive and a polymerizable compound as a second additive. In formula (1), R1a is alkyl having 1 to 12 carbons, or the like; ring Q and ring S are independently 1,4-cyclohexylene, 1,4-phenylene or the like; Z1a and Z2a are independently a single bond or the like; X1a and X2a are independently hydrogen or fluorine; Y1a is fluorine, chlorine, alkyl having 1 to 12 carbons in which at least one hydrogen is replaced by fluorine or chlorine, or the like; q is 1, 2, 3 or 4; s is 0, 1, 2 or 3; and a sum of q and s is 4 or less.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: November 19, 2019
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Naoko Matsuda, Masayuki Saito
  • Patent number: 10450508
    Abstract: The invention relates to bimesogenic compounds of formula I wherein R11, R12, MG11, MG12, X11, X12 and Sp1 have the meaning given in claim 1, to the use of bimesogenic compounds of formula l in liquid crystal media and particular to flexoelectric liquid crystal devices comprising a liquid crystal medium according to the present invention.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: October 22, 2019
    Assignee: Merck Patent GmbH
    Inventors: Kevin Adlem, Owain Llyr Parri, Rachel Tuffin, Hassan Arasi, Benjamin Snow
  • Patent number: 10287501
    Abstract: A liquid crystal display element having an improved response speed by using a liquid crystal compound having a high K33, while neither improving nor deteriorating all the characteristics as a liquid crystal display element. The liquid crystal display element 10 of the present invention has a first substrate 15, a second substrate 15?, and a liquid crystal composition layer 5 interposed between the first substrate 15 and the second substrate 15?, wherein at least one of the first substrate 15 and the second substrate 15? has an electrode that controls the liquid crystal composition layer 5 and the bend elastic constant K33 of at least one kind of liquid crystal compounds in the liquid crystal composition constituting the liquid crystal composition layer 5 is 20 pN or more.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: May 14, 2019
    Assignees: TOKYO INSTITUTE OF TECHNOLOGY, TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION, DIC Corporation
    Inventors: Hideo Takezoe, Satoshi Aya, Takashi Yamashita, Kunihiko Okano
  • Patent number: 10240088
    Abstract: The invention relates to substituted quinquephenyls of the formulae indicated in the claims and description. They are particularly suitable as UV-stabilizing component in liquid-crystalline media.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: March 26, 2019
    Assignee: MERCK PATENT GMBH
    Inventors: Christian Jasper, Timo Uebel, Detlef Pauluth, Michael Junge
  • Patent number: 10234758
    Abstract: A liquid solder resist composition contains a carboxyl group-containing resin, a photopolymerizable compound containing at least one compound selected from a group consisting of a photopolymerizable monomer and a photopolymerizable prepolymer, a photopolymerization initiator, a titanium dioxide, and a compound having a cyclic ether skeleton. The titanium dioxide contains both of a rutile titanium dioxide manufactured by a sulfuric acid method and a rutile titanium dioxide manufactured by a chlorine method.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: March 19, 2019
    Assignee: GOO CHEMICAL CO., LTD.
    Inventors: Yoshio Sakai, Michiya Higuchi, Nobuhito Hamada, Tokuzan Miyake
  • Patent number: 10214692
    Abstract: The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I, in which R1, R1*, Z1, Z2 and L1-3 have the meanings defined herein, and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PALC, FFS, PS-FFS, PS-IPS or IPS effect.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: February 26, 2019
    Assignee: MERCK PATENT GMBH
    Inventors: Harald Hirschmann, Monika Bauer, Martina Windhorst, Marcus Reuter, Constanze Brocke, Rocco Fortte, Matthias Bremer, Sabine Schoen
  • Patent number: 10007148
    Abstract: A liquid crystal composition includes a first compound expressed by following Chemical Formula 1 and about 0.001 wt % to about 0.05 wt % of a second compound expressed by following Chemical Formula 2, where A and B are a cyclo-hexyl group or a phenyl group, m is 0 to 4, n is 1 to 2, X is an alkyl group or an alkoxy group, and Y is one or two fluorine (F) or chlorine (Cl) atoms, and where n is 0 to 2, I is 0 to 1, Z is a halogen group, an alkyl group, or an alkoxy group, and A and A? are methyl groups that do not independently exist.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: June 26, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joon-Hyung Park, Kyung Seon Tak, Kang Seob Jeong, Min-Hee Kim
  • Patent number: 9953738
    Abstract: An electroconductive resin composition and a molded product thereof. The electroconductive resin includes 100 parts by weight of a thermoplastic polymer resin; 0.5 to 5 parts by weight of a carbon nanotube aggregate formed of a plurality of carbon nanotubes having an average outer diameter of 8 to 50 nm and an average inner diameter that is 40% or more of the average outer diameter; and 5 to 15 parts by weight of carbon black.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: April 24, 2018
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Ho Soo Hwang, Wan Sung Lee
  • Patent number: 9914876
    Abstract: The invention relates to bimesogenic compounds of formula I wherein R11, R12, MG11, MG12, X11, X12 and Sp1 have the meaning given in claim 1, to the use of bimesogenic compounds of formula I in liquid crystal media and particular to flexoelectric liquid crystal devices comprising a liquid crystal medium according to the present invention.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: March 13, 2018
    Assignee: Merck Patent GmbH
    Inventors: Kevin Adlem, Owain Llyr Parri, Rachel Tuffin, Patricia Eileen Saxton, Benjamin Snow, Mark John Goulding, Nathan Smith
  • Patent number: 9862886
    Abstract: An exemplary embodiment of the present invention provides a compound represented by Chemical Formula 1: wherein, in Chemical Formula 1, n is 0, 1, or 2, and a substituent represented by X is F, Cl, CF3, CF2CF3 CHF2, CH2F, OCF3, CN, NCS, or a C1 to C5 alkyl including 1 to 3 fluoro substituents and a CH2 group independently substituted with one or more oxygen atoms; (R1) is hydrogen or a C1 to C15 alkyl, at least one CH2 group being independently replaced with —C?C—, —CF2O—, —CH?CH—, —O—, —CO—O—, —O—CO—, or —O—CO—O— in a way that oxygen atoms are directly connected to each other, and 1 to 3 hydrogen atoms of the C1 to C15 alkyl being replaced with halogen; (F) indicates that a fluoro is optionally substituted in place of a hydrogen, and each of is independently
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: January 9, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hye Lim Jang, Beom-Soo Shin, Si Heun Kim, Keun Chan Oh, Bong Hee Kim, Sun Hee Lee
  • Patent number: 9758727
    Abstract: The invention relates to bimesogenic compounds of formula I wherein R11, R12, MG11, MG12, X11, X12 and Sp1 have the meaning given in claim 1, to the use of bimesogenic compounds of formula I in liquid crystal media and particular to flexoelectric liquid crystal devices comprising a liquid crystal medium according to the present invention.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: September 12, 2017
    Assignee: Merck Patent GmbH
    Inventors: Kevin Adlem, Owain Llyr Parri, Rachel Tuffin, Patricia Eileen Saxton
  • Patent number: 9745512
    Abstract: The invention relates to liquid-crystalline mixtures comprising at least one compound of the formula I, in which X, L1, L2, L3, L4 and alkenyl have the meanings indicated in claim 1, in order to increase the pretilt at the polyimide surface, and to liquid-crystalline media comprising one or more compounds of the formula I in electro-optical liquid-crystal displays and in LC lenses.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: August 29, 2017
    Assignee: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Michael Wittek, Brigitte Schuler, Volker Reiffenrath
  • Patent number: 9688913
    Abstract: A liquid crystal composition includes one or more of compounds represented by general formula (i) below and one or more of compounds represented by general formula (ii) below. In the formulae, R11a and R21a each independently represent an alkyl group having 1 to 8 carbon atoms where one —CH2— or two or more non-adjacent —CH2— in the alkyl group may each independently be substituted with —CH?CH—, —C?C—, —O—, —CO—, —COO—, or —OCO—; one or more hydrogen atoms in the alkyl group may be substituted with a fluorine atom or a chlorine atom; X11a, X12a, X13a, X14a, and X21a each independently represent a hydrogen atom or a fluorine atom; A21a, A22a, and A23a each independently represent a trans-1,4-cyclohexylene group or a 1,4-phenylene group whose hydrogen atom may be substituted with a fluorine atom or a chlorine atom.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: June 27, 2017
    Assignee: DIC CORPORATION
    Inventors: Joji Kawamura, Masahiro Niwa, Makoto Negishi
  • Patent number: 9617477
    Abstract: A compound represented by formula (1), a liquid crystal composition, a liquid crystal display device are described. In formula (1), for example, the ring A1 and the ring A4 are phenylene or cyclohexylene; Z1, Z2, Z3 and Z4 are a single bond or alkylene having 1 to 6 carbons; L1 is a single bond; s and t are 0; and P1, P2, P3 and P4 are a polymerizable group.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: April 11, 2017
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yasuyuki Goto, Maiko Matsukuma, Junichi Yamashita
  • Patent number: 9390990
    Abstract: Disclosed herein are a molding composition for a semiconductor package including a liquid crystal thermosetting polymer resin and graphene oxide to thereby effectively decrease coefficient of thermal expansion (CTE) and warpage and maximize an effect of thermal conductivity, and a semiconductor package using the same.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: July 12, 2016
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Soo Young Ji, Seung Hwan Kim
  • Patent number: 9239493
    Abstract: The present invention provides a liquid crystal alignment agent capable of preventing a decrease in voltage holding ratio (VHR), a liquid crystal display containing such a liquid crystal alignment agent, and a method for manufacturing such a liquid crystal display. Aspects of the present invention include a liquid crystal alignment agent containing at least one polymer selected from a polyamic acid and an imide polymer thereof and at least one difunctional monomer having an anthracene or phenanthrene structure, a liquid crystal display including an alignment film formed on at least one of an active substrate and a counter substrate using the above liquid crystal alignment agent, and a method for manufacturing a liquid crystal display including the steps of forming an active substrate and forming a counter substrate, at least one of which includes forming an alignment film on the active substrate or the counter substrate using the above liquid crystal alignment agent.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: January 19, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masanobu Mizusaki, Youhei Nakanishi
  • Patent number: 9195097
    Abstract: The liquid crystal display device according to the present invention includes a pair of substrates, and a liquid crystal layer disposed between the pair of substrates, wherein the liquid crystal layer includes a liquid crystal material having a negative dielectric constant anisotropy, at least one of the pair of substrates is provided with an alignment film for vertically aligning adjacent liquid crystal molecules, and a polymer layer formed on the alignment film for controlling the alignment of the adjacent liquid crystal molecules, the polymer layer is formed by polymerization of at least one monomer, the polymerization being initiated by radicals generated of the monomer upon absorption of light, the alignment film includes a polymer compound having a main chain that contains an imide structure, and the main chain has an imidization ratio of less than 50%.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: November 24, 2015
    Assignees: SHARP KABUSHIKI KAISHA, TOYO GOSEI CO., LTD.
    Inventors: Masanobu Mizusaki, Youhei Nakanishi, Takeshi Noma, Yuichiro Yamada, Satoshi Enomoto, Yuki Hara, Hideo Kikuchi
  • Patent number: 9181482
    Abstract: The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, and to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, especially in LC displays of the PS (polymer-stabilised) and PSA (polymer-sustained alignment) type.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: November 10, 2015
    Assignee: Merck Patent GmbH
    Inventors: Achim Goetz, Erdal Durmaz, Malgorzata Rillich, Andreas Taugerbeck
  • Patent number: 9182632
    Abstract: The present invention provides a liquid crystal display device that rarely causes burn-in at high throughput. The present invention provides a liquid crystal display device that includes a pair of substrates and a liquid crystal layer between the pair of substrates, wherein at least one of the pair of substrates includes an alignment layer and a polymer layer for controlling the alignment of adjacent liquid crystal molecules, the polymer layer being disposed on the alignment layer, the polymer layer has a structure containing at least three condensed benzene rings, and the alignment layer is covalently bonded to the polymer layer.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: November 10, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masanobu Mizusaki
  • Patent number: 9181480
    Abstract: A liquid crystal composition having a negative dielectric anisotropy, a component (B) including at least one compound represented by formula (1.1) or formula (1.2), wherein the compound (B) is dielectrically neutral, having a dielectric anisotropy of more than ?2 and less than +2; and a component (A) including at least one compound represented by formula (2.1) or formula (2.2), wherein the component (A) is dielectrically negative, having a dielectric anisotropy of ?2 or less.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: November 10, 2015
    Assignee: DIC CORPORATION
    Inventors: Joji Kawamura, Yoshinori Iwashita, Shinji Ogawa
  • Patent number: 9164326
    Abstract: The present invention provides a liquid crystal display device in which image sticking seldom occurs. The liquid crystal display device according to the present invention includes a pair of substrates, and a liquid crystal layer disposed between the pair of substrates, wherein the liquid crystal layer includes a liquid crystal material having a negative dielectric constant anisotropy, at least one of the pair of substrates is provided with an alignment film for vertically aligning adjacent liquid crystal molecules, and a polymer layer formed on the alignment film for controlling the alignment of the adjacent liquid crystal molecules, and the polymer layer is formed by polymerization of at least one monomer, the polymerization being initiated by radicals generated of the monomer upon absorption of light.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: October 20, 2015
    Assignees: SHARP KABUSHIKI KAISHA, TOYO GOSEI CO., LTD.
    Inventors: Masanobu Mizusaki, Youhei Nakanishi, Takeshi Noma, Yuichiro Yamada, Satoshi Enomoto, Yuki Hara, Hideo Kikuchi
  • Patent number: 9164325
    Abstract: The liquid crystal display device according to the present invention includes a pair of substrates, and a liquid crystal layer disposed between the pair of substrates, wherein the liquid crystal layer includes a liquid crystal material having a negative dielectric constant anisotropy, at least one of the pair of substrates is provided with an alignment film for vertically aligning adjacent liquid crystal molecules, and a polymer layer formed on the alignment film for controlling the alignment of the adjacent liquid crystal molecules, the polymer layer is formed by polymerization of at least one monomer, the polymerization being initiated by radicals generated of the monomer upon absorption of light, the alignment film includes a polymer compound having a main chain that contains an imide structure, and the main chain has an imidization ratio of 50% or more.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: October 20, 2015
    Assignees: SHARP KABUSHIKI KAISHA, TOYO GOSEI CO., LTD.
    Inventors: Masanobu Mizusaki, Youhei Nakanishi, Takeshi Noma, Yuichiro Yamada, Satoshi Enomoto, Yuki Hara, Hideo Kikuchi
  • Patent number: 9163178
    Abstract: Disclosed is a liquid crystal compound with negative dielectric anisotropy, having a general formula as Formula 1. In Formula 1, each of L1, L2, L3, and L4, being same or different, is hydrogen, halogen, or cyano group. Each of R1 and R2, being same or different, is hydrogen, halogen, C1-12 alkyl group, C1-12 alkoxy group, C1-12 haloalkyl group, C2-12 alkenyl group, C2-12 ether group, or C2-12 alkynyl group. Each of A1 and A2, being same or different, is benzene, cyclohexane, or cyclohexene. Z1 is —CF2O—, or —OCF2—, and Z2 is —CF2O—, or —OCF2—.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: October 20, 2015
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chao-Wu Liaw, Kuo-Chang Wang, Jian-Wen Lin, Shih-Hsien Liu, Kung-Lung Cheng
  • Patent number: 9157027
    Abstract: A compound represented by formula (1), a liquid crystal composition, a liquid crystal display device are described. In formula (1), for example, the ring A1 and the ring A4 are phenylene or cyclohexylene; Z1, Z2, Z3 and Z4 are a single bond or alkylene having 1 to 6 carbons; L1 is a single bond; s and t are 0; and P1, P2, P3 and P4 are a polymerizable group.
    Type: Grant
    Filed: December 23, 2012
    Date of Patent: October 13, 2015
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yasuyuki Goto, Maiko Matsukuma, Junichi Yamashita
  • Patent number: 9139672
    Abstract: A liquid crystal composition and a liquid crystal display device which includes the composition are provided. The liquid crystal composition contains a specific compound having a polymerizable group as a first component, and may contain a specific compound having a large negative dielectric anisotropy and a low minimum temperature as a second component, or a specific compound having a small viscosity or a large maximum temperature as a third component. The liquid crystal composition satisfies at least one of the following characteristics: a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat. Alternatively, a liquid crystal composition having a suitable balance regarding at least two of the aforementioned characteristics is also provided.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: September 22, 2015
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yukihiro Fujita, Yoshimasa Furusato, Maiko Matsukuma
  • Publication number: 20150123031
    Abstract: A method of manufacturing polymer dispersed liquid crystal includes: mixing liquid crystal, a first photopolymerizable material, a first photoinitiator, a second photopolymerizable material and a second photoinitiator to form a mixture, in which the first photoinitiator is capable to initiate polymerization of the first photopolymerizable material by irradiating a first ultraviolet light, and the second photoinitiator is capable to initiate polymerization of the second photopolymerizable material by irradiating a second ultraviolet light, and the first ultraviolet light has a wavelength different from that of the second ultraviolet light. The first photopolymerizable material is polymerized by irradiating the first ultraviolet light to form a plurality of first liquid crystal droplets. The second photopolymerizable material is polymerized by irradiating the second ultraviolet light to form a plurality of second liquid crystal droplets dispersed between the first liquid crystal droplets.
    Type: Application
    Filed: December 19, 2013
    Publication date: May 7, 2015
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Jian-Hua CHEN, Chun-Wei SU
  • Patent number: 9023462
    Abstract: A thermally conductive polymer composite material and an article including the same. The thermally conductive polymer composite material includes 15 to 20 parts by weight of a wholly aromatic liquid crystalline polyester resin; and 80 to 85 parts by weight of a thermally conductive additive.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: May 5, 2015
    Assignee: Shenzhen Wote Advanced Materials Co., Ltd.
    Inventors: Youn Eung Lee, Jin Kyu Lee, Young Taek Oh, Mahn Jong Kim
  • Patent number: 9011990
    Abstract: The invention relates to a liquid crystal display utilizing a vertically aligned state of liquid crystal molecules when no voltage is applied and to a method of manufacturing the same. The liquid crystal display includes a monofunctional monomer having a structure expressed by X-R (where X represents an acrylate group or a methacrylate group, and R represents an organic group having a steroid skeleton). A liquid crystal material is sandwiched between substrates which is then irradiated with ultraviolet rays to cure the monofunctional monomer, thereby forming a polymer film at an interface of a substrate. The monofunctional monomer has a hydrophobic skeleton such as an alkyl chain and a photoreactive group on one side of the skeleton.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: April 21, 2015
    Assignee: Unified Innovative Technology, LLC
    Inventors: Shingo Kataoka, Hideaki Tsuda, Katsufumi Ohmuro, Jin Hirosawa, Seiji Tanuma, Yoshio Koike
  • Patent number: 8999459
    Abstract: The present invention relates to a liquid-crystal (LC) display of the PSA (polymer sustained alignment) type, and to polymerizable compounds and LC media for use in PSA displays.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: April 7, 2015
    Assignee: Merck Patent GmbH
    Inventors: Georg Bernatz, Melanie Klasen-Memmer, Matthias Bremer
  • Patent number: 8999196
    Abstract: The invention is to provide a new liquid crystal compound having a high clearing point, a good compatibility with other compounds, a small viscosity, and a high stability to heat, light and so forth; compound (1) is provided: R1CF2nR2??(1) wherein, for example, R1 is alkyl having 4 to 10 carbons or —(CH2)2—CH?CH2, R2 is alkyl having 2 to 10 carbons, n is 8, and R1 and R2 are not allowed to be straight-chain alkyl having an identical number of carbons.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: April 7, 2015
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Hiroyuki Tanaka, Sayaka Fujimori
  • Publication number: 20150090935
    Abstract: The invention relates to bimesogenic compounds of formula I wherein R11, R12, MG11, MG12, X11, X12 and Sp1 have the meaning given in claim 1, to the use of bimesogenic compounds of formula I in liquid crystal media and particular to flexoelectric liquid crystal devices comprising a liquid crystal medium according to the present invention. Furthermore the invention relates to bimesogenic compounds of formula I inducing a second nematic phase in nematic mixtures that do not show this additional phase without compounds of formula I.
    Type: Application
    Filed: May 7, 2013
    Publication date: April 2, 2015
    Applicant: Merck Patent GmbH
    Inventors: Kevin Adlem, Owain Llyr Parri, Rachel Tuffin, Benjamin Snow, Mariam Namutebi
  • Patent number: 8981108
    Abstract: An optical film including at least one compound represented by formula (1) is disclosed. In the formula, Y11, Y12 and Y13 each independently represent methine or a nitrogen atom; R11, R12 and R13 each independently represent formula (A), (B) or (C) or a hydrogen atom, provided that at least two of R11, R12 and R13 each independently represent formula (A), (B) or (C). In the formulae, L12, L22, and L32 each represent a 5-membered heterocyclic group.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: March 17, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Ryo Hamasaki, Hideyuki Nishikawa, Makoto Takahashi, Takashi Miyahara, Masuji Motoki, Masaaki Tsukase
  • Patent number: 8974693
    Abstract: The present invention relates to a liquid-crystalline medium, characterized in that it contains a polymerizable component (A) containing one more polymerizable compounds and a liquid-crystalline component (B) containing one more compounds of the general formula I in which R, rings A1 and A2, Z1, Z2, Y1, Y2, X0 and r are as defined in Claim 1.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: March 10, 2015
    Assignee: Merck Patent GmbH
    Inventors: Seung-Eun Lee, Eun Young Kim, Dong-Mee Song, Kyung-Ah Park, Sang-Hyun Park, Eun-Kyu Lee
  • Patent number: 8974873
    Abstract: The present invention provides compositions, devices and methods related to the alignment of materials including polymers. In some cases, the present invention comprises the assembly of molecules (e.g., polymers) via intermolecular interactions to produce extended networks, which may have enhanced properties relative to the individual molecules. Such networks may be advantageous for use in electronics, photovoltaics, sensor applications, and the like. In some embodiments, the present invention may enhance the performance of certain optical devices, such as liquid crystal displays (e.g., color liquid crystal displays) by providing enhanced contrast ratio, faster response times, and/or lower operating voltage.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 10, 2015
    Assignee: Massachusetts Institute of Technology
    Inventor: Timothy M. Swager
  • Patent number: 8968596
    Abstract: The present invention provides a liquid crystal reactive monomer on a polyimide surface of an alignment film and a liquid crystal panel. The liquid crystal reactive monomer has a hard core and is contained in a liquid crystal composition. The liquid crystal reactive monomer is represented by the formula (I) or the formula (II), and the molecular weight thereof is greater than or equal to 300. The solubility of the liquid crystal RMs is significantly improved in a liquid crystal matrix while the returning force of liquid crystal molecules is increased, so as to solve the image sticking issue, increase the polymerization capacity of the liquid crystal molecules, raise the curing speed of the curing reaction between the liquid crystal RMs and the polyimide surface and shorten the curing time, so that the purpose of energy saving and carbon reduction can be achieved.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: March 3, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Chung-Ching Hsieh
  • Patent number: 8968598
    Abstract: A liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or having a suitable balance regarding at least two of the characteristics is provided; and an AM device having a short response time, a suitable pretilt, a large voltage holding ratio, a large contrast ratio, a long service life and so forth is provided. A solution is a liquid crystal composition containing a specific compound having a high maximum temperature and a large dielectric anisotropy as a first component and a polymerizable compound as a second component, and a liquid crystal display device including the composition.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: March 3, 2015
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Masayuki Saito, Yoshinari Matsumura
  • Patent number: 8968597
    Abstract: A liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat or that is suitably balanced between at least two of the characteristics, is described. The liquid crystal composition includes a compound having three or more polymerizable groups as a first component and a compound having one or two polymerizable groups as a second component in a suitable ratio, and that may include a specific compound having a large negative dielectric anisotropy and a low minimum temperature as a third component or a specific compound having a small viscosity or a high maximum temperature as a fourth component.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: March 3, 2015
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Yoshimasa Furusato, Subaru Kawasaki, Eriko Kurihara
  • Patent number: 8961824
    Abstract: To provide a liquid crystal composition satisfying at least one characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature thereof, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy and specific resistance, high stability to ultraviolet light and heat, or having a suitable balance regarding at least two of the characteristics; an AM device having short response time, a large voltage holding ratio and contrast ratio, and a long life. A liquid crystal composition has a nematic phase and contains a specific straight-chain compound as a first component and a specific compound having a large dielectric anisotropy as second component, and may contain a specific compound having a high maximum temperature or small viscosity as a third component and a specific compound having a high maximum temperature or large dielectric anisotropy as a fourth component, and a liquid crystal display device includes the composition.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: February 24, 2015
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Takayoshi Yanai, Norikatsu Hattori, Hiroyuki Tanaka
  • Patent number: 8956549
    Abstract: The present invention relates to a liquid-crystalline medium, characterised in that it contains a polymerisable component (A) containing one more polymerisable compounds and a liquid-crystalline component (B) containing one more compounds of the general formula I in which R, rings A1 and A2, Z1, Z2, Y1, Y2, X0 and r are as defined in Claim 1.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: February 17, 2015
    Assignee: Merck Patent GmbH
    Inventors: Seung-Eun Lee, Eun Young Kim, Dong-Mee Song, Kyung-Ah Park, Sang-Hyun Park, Eun-Kyu Lee
  • Patent number: 8956550
    Abstract: The present invention relates to a liquid-crystalline medium, characterized in that it contains a polymerizable component (A) containing one more polymerizable compounds and a liquid-crystalline component (B) containing one more compounds of the general formula I in which R, rings A1 and A2, Z1, Z2, Y1, Y2, X0 and r are as defined in Claim 1.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: February 17, 2015
    Assignee: Merck Patent GmbH
    Inventors: Seung-Eun Lee, Eun Young Kim, Dong-Mee Song, Kyung-Ah Park, Sang-Hyun Park, Eun-Kyu Lee