Liquid Crystal Compositions Patents (Class 252/299.01)
  • Patent number: 10690952
    Abstract: The liquid crystal display element includes: two transparent substrates, at least one of the two transparent substrates having an electrode; a liquid crystal composition sandwiched between the two transparent substrates and containing one or two or more liquid crystal compounds; and a copolymer included in the liquid crystal composition, the copolymer being a cured product of a polymerizable composition that contains two or more polymerizable compounds. The polymerizable compounds used include one or two or more polymerizable, photo-alignable compounds (Vn), and the content of the polymerizable composition is 1% by mass or more and less than 40% by mass based on the total weight of the polymerizable composition and the liquid crystal composition. The liquid crystal display element of the present invention is applicable to various operational modes such as TN, STN, ECB, VA, VA-TN, IPS, FFS, ? cell, OCB, and cholesteric liquid crystal modes.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: June 23, 2020
    Assignee: DIC CORPORATION
    Inventor: Toru Fujisawa
  • Patent number: 10685439
    Abstract: An imaging system and method acquire first ultrasound image data of a body at a first acquisition quality level, display one or more two-dimensional images of the body using the image data at the first acquisition quality level, and create second ultrasound image data at a reduced, second acquisition quality level. The second ultrasound image data is created from the first ultrasound image data that was acquired at the first acquisition quality level. The system and method also display a rendered multi-dimensional image of the body using the second ultrasound image data at the reduced, second acquisition quality level.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: June 16, 2020
    Assignee: General Electric Company
    Inventors: Gerald Schroecker, Helmut Brandl, Erwin Fosodeder
  • Patent number: 10682386
    Abstract: A method has been developed of preventing or limiting formation of adhesions by administering to a site in need thereof, in the absence of or after bleeding or leakage of fluid has been substantially stopped, a self-assembling material which forms a barrier to formation of adhesions. In certain embodiments, the self assembling materials are peptidomimetics, nucleotidomimetics, di- and triblock copolymers, N-alkylacrylamides, or dendrimers. These materials are also useful in a method for regeneration or repair of tissue or cells forming tissue.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: June 16, 2020
    Assignee: Arch Biosurgery, Inc.
    Inventors: Rutledge Ellis-Behnke, Terrence W. Norchi, Stephen Richard Kelly
  • Patent number: 10663828
    Abstract: The present application relates to a liquid crystal device. The liquid crystal device of the present application may realize a transparent white state, a transparent black state and a scattering state according to a level of an applied voltage at a fixed frequency. The liquid crystal device may be applied to, for example, a window of a vehicle, a smart window, a window protective film, a display, a light cutoff panel for a display, an active retarder for a 3D image display or a viewing angle controlling film.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: May 26, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Eun Jung Lim, Sung Joon Min, Jung Sun You, Jung Woon Kim, Jin Hong Kim, Dong Hyun Oh
  • Patent number: 10662377
    Abstract: The invention relates to a liquid crystalline medium, characterised in that it comprises one or more compounds of formula A and one or more compounds of formula II wherein the parameters have the meaning indicated in claim 1, and to high-frequency components comprising the same, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, in particular microwave phased-array antennas.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: May 26, 2020
    Assignee: MERCK PATENT GMBH
    Inventors: Constanze Brocke, Atsutaka Manabe, Michael Wittek, Renate Seeger
  • Patent number: 10654970
    Abstract: A liquid crystalline polyester resin composition for use in camera modules includes 20 to 45 parts by weight of spherical silica particles (B) having an average particle diameter of 15 ?m or more and less than 30 ?m in 100 parts by weight of a liquid crystalline polyester resin (A). A polyamide resin composition with which a camera module exhibiting excellent low dust forming property, toughness and impact strength can be obtained.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: May 19, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Satoshi Matsubara, Takeshi Shimada, Koji Tachikawa
  • Patent number: 10647816
    Abstract: A liquid crystal display device having excellent liquid crystal vertical alignment properties, good transparency when a voltage is applied and good scattering properties when no voltage is applied, and good adhesion with the liquid crystal layer. The liquid crystal display device has a liquid crystal layer formed by irradiating and curing with ultraviolet rays a liquid crystal composition containing a liquid crystal and a polymerizable compound disposed between a pair of substrates provided with electrodes, and at least one of the substrates is provided with a liquid crystal alignment film to vertically align a liquid crystal. The liquid crystal composition contains a compound represented by the formula [1], and the liquid crystal alignment film is obtained from a liquid crystal alignment treating agent containing a polymer having a side chain structure represented by the formula [2-1] or formula [2-2], and a side chain structure represented by the formula [3].
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: May 12, 2020
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Kazuyoshi Hosaka, Noritoshi Miki, Hiroyuki Omura, Jun Hashimoto
  • Patent number: 10647919
    Abstract: Provided are a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and high stability to heat, or the liquid crystal composition having a suitable balance regarding at least two of the characteristics; and an AM device having characteristics such as a short response time, a large voltage holding ratio, low threshold voltage, a large contrast ratio and a long service life.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: May 12, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Masayuki Saito, Yoshimasa Furusato
  • Patent number: 10640708
    Abstract: A liquid crystal composition, comprising, at least one compound represented by Formula 1-A: wherein, in the Formula 1-A, R—*, R1—*, Q-*, *—Z1-*, *—Z2-*, n1, n2, n3, n4, L1-*, L2-*, L3-*, L4-*, L5-*, L6-*, L7-*, and L8-* are the same as defined in the specification, and * is defined as a bonding site to a neighboring atom.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: May 5, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Hong Bae, Keun Chan Oh, Seul Gee Lee
  • Patent number: 10640707
    Abstract: Disclosed herein are compositions, comprising one or more types of surface modified anisotropic nanoparticles dispersed in a liquid crystal. The compositions provide tunable methods for modifying light and energy flow.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: May 5, 2020
    Assignee: The Regents of the University of Colorado, a body corporate
    Inventors: Quingkun Liu, Ivan Smalyukh
  • Patent number: 10634834
    Abstract: An object of the present invention is to provide an optical film having excellent alignment, and a polarizing plate and an image display device using the same. The optical film of the present invention is an optical film having at least an optically anisotropic layer, and the optically anisotropic layer contains a smectic liquid crystal compound not including a fluorine atom and a compound partially having a cyclohexane ring in which the hydrogen atom is substituted with a linear alkyl group.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: April 28, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Shinnosuke Sakai, Ayako Muramatsu
  • Patent number: 10626330
    Abstract: The invention relates to a method of manufacturing a liquid crystal display device wherein a liquid crystal mixture having positive dielectric anisotropy or negative dielectric anisotropy is interposed between a first substrate and a second substrate, the liquid crystal mixture comprising liquid crystal molecules, a self assembling photoalignment agent, a polymerisable compound, and wherein said LC mixture is photoaligned by irradiation with linearly polarised ultraviolet light and then cured by irradiation with ultraviolet light.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: April 21, 2020
    Assignee: MERCK PATENT GMBH
    Inventors: Kevin Adlem, Alex Davis, Rachel Tuffin, Mark Goebel, Graziano Archetti, Rocco Fortte, Karl Skjonnemand, Ian Charles Sage
  • Patent number: 10619100
    Abstract: The present disclosure relates to a chiral compound of formula (I), wherein R1, R1?, R2, R2?, n, n?, m and m? are as defined in the specification. The present disclosure also relates to the preparation of the chiral compound. A cholesteric liquid crystal can be obtained by adding the compound to a nematic liquid crystal material, and the helical twisting power constant of the chiral additive can be changed by irradiating, so as to expand the reflection band width. As such, the present disclosure further relates to the use of the chiral compound in preparing a cholesteric liquid crystal material, a cholesteric liquid crystal material comprising the chiral compound of the present disclosure, and a display device comprising the cholesteric liquid crystal material.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: April 14, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventors: Xiaoyue He, Lei Zhang, Tsung Chieh Kuo, Ming Hu
  • Patent number: 10619099
    Abstract: Self-aligned liquid crystal materials and structures are disclosed. The structures can exhibit piezoelectric and flexoelectric properties.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: April 14, 2020
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Cynthia Kutchko, Zoubeida Ounaies, Hassene Ben Atitallah, Nicholas Wyckoff, Anil Kumar, Romain Stalder, David Walters
  • Patent number: 10620477
    Abstract: A display assembly having opposingly disposed display surface and back surface is disclosed herein, which includes a pixel electrode substrate and a common electrode substrate. A liquid crystal layer is sandwiched between, and configured to be in a scattering state if an electric field is applied to, the pixel electrode substrate and the common electrode substrate. A light source at a lateral side of the display assembly generates, and emits into the display assembly, a linearly polarized light having a first polarization direction. A blocking member disposed at the side of the back surface is configured to block a light having the first polarization direction to, and to allow a light having a second polarization direction perpendicular to the first polarization direction to pass therethrough. A method for manufacturing the display assembly, and a display device including one or two display assemblies are also disclosed.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: April 14, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xin Li, Guangkui Qin
  • Patent number: 10570264
    Abstract: A photocurable coating composition includes 50 to 150 parts by weight of a urethane acrylate oligomer having a number average molecular weight of 1300 to 1700 g/mol and 9 functional groups, 50 to 150 parts by weight of an acrylate monomer, 10 to 15 parts by weight of a photoinitiator, and 1 to 3 parts by weight of a surfactant.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: February 25, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung Rim Kim, Nam Il Koo, Sun Kwon Kim, Jeong Ho Moon, Sun Woo Park, Jong Sung Lee, Ji Min Lee
  • Patent number: 10566289
    Abstract: A fan-out semiconductor package may include: a first connection member having a through hole; a semiconductor chip disposed in the through hole and having an active surface on which a connection pad is disposed and a non-active surface opposing the active surface; an encapsulant at least partially encapsulating the first connection member and the non-active surface of the semiconductor chip; and a second connection member disposed on the first connection member and the active surface of the semiconductor chip and including a redistribution layer electrically connected to the connection pad, wherein the first connection member includes a first insulating layer, a first redistribution layer embedded in the first insulating layer while contacting the second connection member, and a second redistribution layer disposed on the other side of the first insulating layer opposing one side thereof in which the first redistribution layer is embedded.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: February 18, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Doo Hwan Lee, Kyung Seob Oh, Jong Rip Kim, Hyoung Joon Kim
  • Patent number: 10564336
    Abstract: A liquid crystal element (1) includes helical structures (7). The liquid crystal element (1) has a light incidence surface (13) on which light is incident and a reflective surface (17) which reflects the light coming through the light incidence surface (13). Each helical structure (7) includes structure units (9). Each structure unit (9) includes liquid crystal molecules (11) stacked in a twisted manner to form a helix. A second end (E2) of one structure unit (9) of structure units (9) adjacent to one another in a first direction (A1) serves as a first end (E1) of the other structure unit (9). Directions of orientation of the liquid crystal molecules (11) at the first ends (E1) included in the helical structures (7) are identical. The reflective surface (17) includes at least one of the first ends (E1) included in each helical structure (7). The reflective surface (17) is non-parallel to the light incidence surface (13).
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: February 18, 2020
    Assignee: OSAKA UNIVERSITY
    Inventor: Hiroyuki Yoshida
  • Patent number: 10564478
    Abstract: A liquid crystal panel structure and a method for manufacturing the liquid crystal panel are provided. Both the first alignment layer of the upper layer and the second alignment layer of the lower substrate employ the silicon nitride films, of which the surfaces are implemented with ion beam bombardment, and in comparison with the utilization of PI alignment film material, the alignment layers possess the physical, chemical properties of silicon nitride, which are more stable, and thus can provide the better reliability for the liquid crystal panel; besides, the proper pre-tilted angle provided by the surface of the silicon nitride films with ion beam bombardment can be adjusted in a certain range, and thus can provide the proper pre-tilted angle for the liquid crystal molecules, and compared with existing PSVA technology, the procedure of utilizing UV light irradiation to provide a pre-tilted angle for the liquid crystal is not required.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: February 18, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Ji Li
  • Patent number: 10550327
    Abstract: Polymerisable compounds and processes and intermediates for the preparation thereof. Also liquid-crystal (LC) media comprising the polymerisable compounds, and the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PSA (“polymer sustained alignment”) type.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: February 4, 2020
    Assignee: Merck Patent GmbH
    Inventors: Martin Engel, Andreas Taugerbeck, Constanze Brocke, Helmut Haensel, Stephan Derow, Julian Vogt
  • Patent number: 10544365
    Abstract: A liquid crystal composition that has a positive dielectric anisotropy and a sufficiently low viscosity and that causes no display defects when used in liquid crystal display devices is provided without decreasing or increasing the refractive index anisotropy or nematic phase-isotropic liquid phase transition temperature. This liquid crystal composition contains at least one compound selected from compounds represented by general formula (LC0) and at least one compound selected from the group consisting of compounds represented by general formulas (LC1) to (LC5). This liquid crystal composition can be used to provide a reliable liquid crystal display device capable of maintaining a high voltage-holding ratio at high temperatures. This liquid crystal display device is highly practical as a liquid crystal display and is effective in achieving quick response without significantly decreasing the cell gap.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: January 28, 2020
    Assignee: DIC CORPORATION
    Inventors: Masakazu Kaneoya, Kiyofumi Takeuchi, Masashi Osawa, Kenta Tojo, Tetsuo Kusumoto
  • Patent number: 10538477
    Abstract: Provided are a production method for compound (II) including reacting compound (I) with a halogenating agent in the presence of at least 0.5 equivalents, relative to compound (I), of a nitrogen atom-containing polar aprotic solvent; a composition containing compound (II), a halogenating agent or the like, and at least 0.5 equivalents, relative to compound (II), of a nitrogen atom-containing polar aprotic solvent; a stabilization method for compound (II); and compound (II).
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: January 21, 2020
    Assignee: ZEON CORPORATION
    Inventors: Kumi Okuyama, Kei Sakamoto, Kanako Sanuki
  • Patent number: 10533107
    Abstract: A composition set according to the invention includes a first composition which contains a cellulose derivative having a liquid crystalline functional group, and a second composition which contains a liquid crystalline compound having a reactive functional group and can be in a liquid state. The first composition preferably contains particles whose surfaces are at least partially constituted by the cellulose derivative. Further, the first composition preferably contains a liquid component which functions as a dispersion medium for dispersing the particles.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: January 14, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Toshihiro Otake
  • Patent number: 10529674
    Abstract: Systems and methods provide a device for characterizing a thin film, including a conducting or insulating substrate, an active layer on the conducting or insulating substrate to be characterized, and a plurality of stripline electrodes on the active layer. The plurality of stripline electrodes include a pitch width of a same order as the thickness of the active layer and strip width smaller than the thickness of the active layer.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: January 7, 2020
    Assignee: Northwestern University
    Inventors: Matthew Grayson, Yang Tang
  • Patent number: 10519374
    Abstract: The present invention provides a polymerizable composition containing at least two types of polymerizable compounds represented by Formula (I), in the formula, A represents a phenylene group or a trans-1,4-cyclohexylene group, L represents —OC(?O)—, —OC(?O)O—, and the like, m represents 3 to 12, Sp1 and Sp2 represent a linking group, and Q1 and Q2 represent a polymerizable group, and the like, in which in a case where a number obtained by dividing the number of trans-1,4-cyclohexylene groups by m is set to mc, mc's for the two types of polymerizable compounds are different from each other, at least one of the two types of the polymerizable compounds satisfies 0.5<mc<0.7, and at least the other of the two types of the polymerizable compounds satisfies 0.5<mc; and a polymerizable compound in which m in Formula (I) is 6 to 12.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: December 31, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Shunya Katoh, Yuki Nakazawa, Masaru Yoshikawa
  • Patent number: 10519335
    Abstract: A composition according to the invention contains a cellulose derivative having a liquid crystalline functional group and a liquid crystalline solvent having a reactive functional group. The reactive functional group preferably contains a carbon-carbon double bond. The reactive functional group is preferably a (meth)acryloyl group.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: December 31, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Toshihiro Otake
  • Patent number: 10513483
    Abstract: A process for the preparation of a class of molecules, namely bicyclo[1.1.1]pentanes and derivatives thereof by reaction of [1.1.1]propellane with a variety of reagents under irradiation and/or in the presence of radical initiators to obtain bicyclo[1.1.1]pentanes asymmetrically substituted at position 1 and 3, which are useful as intermediates for the preparation of asymmetrically 1,3-disubstituted bicyclo[1.1.1]pentane derivatives and various physiologically active substances or materials containing these structures.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: December 24, 2019
    Assignee: SPIROCHEM AG
    Inventors: Yoshikazu Suzuki, Daniel Jimenez-Teja, Christophe Salomé, Thomas Fessard
  • Patent number: 10513658
    Abstract: A reactive perpendicular aligned organosilicon material is provided, having a general structural formula in the form of A-R, where A is —SiCl3 and R represents a linear chained or a branched chained alkyl group with 5-20 carbon atoms. A CH2 group in the alkyl group is substituted by a phenyl group, a naphthenic base, —CONH—, —COO—, —O—CO—, —S—, —CO—, or —CH?CH—, or an F atom or a Cl atom substitutes an H atom in the alkyl group. A Cl atom in the reactive perpendicular aligned organosilicon material and —OH on a surface of a substrate having no PI thereon form a hydrogen bond, leading to vertical arrangement of liquid crystal molecules between two opposite substrates.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: December 24, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Song Lan
  • Patent number: 10514484
    Abstract: A compound having a maximum absorption in a wavelength range of 350 nm to 550 nm that functions as a dichroic dye is provided. In particular, a compound represented by formula (1) is provided. In the compound of formula (1), R1 represents a hydrogen atom or the like; R2 represents a hydrogen atom or the like; R3 represents a hydrogen atom or the like; Z represents —CO— or the like; and Y represents a group of formula (Y1). In the group of formula (Y1), * represents a bonding site with N, or a group of formula (Y2); and in the group of formula (Y2), * represents a bonding site with N; P1 and P2 each independently represent —S— or the like; and Q1 and Q2 each independently represent ?N— or the like.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: December 24, 2019
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Noriyuki Hida, Haruki Okawa
  • Patent number: 10509309
    Abstract: A polyarylate resin is represented by general formula (1) shown below. In general formula (1), R1 represents a hydrogen atom or methyl group. R2 and R3 each represent a hydrogen atom or an alkyl group having a carbon number of at least 1 and no greater than 4. R2 and R3 are not the same as one another. When R1 represents a hydrogen atom, R2 and R3 are not bonded to one another. When R1 represents a methyl group, R2 and R3 are optionally bonded to one another to form a ring. r and s each represent a number greater than or equal to 0 and less than or equal to 49. t and u each represent a number greater than or equal to 1 and less than or equal to 50. r+s+t+u=100. r+t=s+u.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: December 17, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Jun Azuma
  • Patent number: 10503015
    Abstract: A light-modulated quantum dot (QD) color display according to an embodiment of the present disclosure includes a light source, a light modulator positioned above the light source to control the intensity of light generated from the light source, and a QD light-emitting element positioned above the light modulator and including a plurality of QD patterns having different emission properties in the visible light region by means of light intensity that has passed through the light modulator. According to an embodiment, the QD pattern is configured to accomplish light emission with uniformity and high color purity by uniform distribution of QDs in a matrix using aligned polymer, thereby simultaneously achieving the features of uniform emission of light over the entire pixel, intensity-tunability giving analog grey levels, and high color purity and wide color gamut without using a color filter beyond the limitation of existing QD color display technology.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: December 10, 2019
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Sin-Doo Lee, Se-Um Kim, Jeng-Hun Suh
  • Patent number: 10487165
    Abstract: A polymer having a partial structure formed by performing radical polymerization with respect to a compound having a mesogenic group derived from at least one type of liquid crystal compound selected from a rod-like liquid crystal compound and a disk-like liquid crystal compound, and two or more polymerizable groups, in which the polymer is a branched polymer, and a composition containing the polymer, an optical film, and a liquid crystal display device.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: November 26, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Akio Tamura, Jun Takeda, Yuki Matsuda, Nobuyuki Akutagawa
  • Patent number: 10479844
    Abstract: The present invention provides a polymerizable composition containing a specific polymerizable compound and a fluorosurfactant having a specific polyoxyalkylene skeleton and having specific molecular weight. The invention also provides an optically anisotropic body, a retardation film, an antireflective film, and a liquid crystal display device that are produced using the polymerizable composition of the present invention. The present invention is useful because, when an optically anisotropic body is produced by photo-polymerization of the polymerizable composition, three features including the leveling properties of the surface of the optically anisotropic body, offset onto the substrate, and liquid crystal alignment can be improved simultaneously.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: November 19, 2019
    Assignee: DIC CORPORATION
    Inventors: Kouichi Endo, Toru Ishii, Yasuhiro Kuwana, Kazuaki Hatsusaka, Mika Yamamoto
  • Patent number: 10472569
    Abstract: The invention relates to a liquid-crystalline medium comprising at least one compound of the formula I, in which R1 and R2 have the meanings indicated in Claim 1, and to the use thereof in electro-optical liquid-crystal displays.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: November 12, 2019
    Assignee: Merck Patent GmbH
    Inventors: Harald Hirschmann, Volker Reiffenrath
  • Patent number: 10457868
    Abstract: A liquid crystal composition, including at least one of: a first compound represented by Chemical Formula 1 below, a second compound represented by Chemical Formula 2 below; and a third compound represented by Chemical Formula 2? below: The definitions of A, Z, n, R, and R? are provided herein. Also provided is a liquid crystal display, including: a first display panel including a thin film transistor; a second display panel facing the first display panel; and a liquid crystal layer including at least one of a first compound represented by Chemical Formula 1, a second compound represented by Chemical Formula 2, and a third compound represented by Chemical Formula 2? and a reactive mesogen.
    Type: Grant
    Filed: September 10, 2016
    Date of Patent: October 29, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Kyung Hee Lee
  • Patent number: 10457870
    Abstract: Disclosed are a chiral compound, a liquid crystal composition containing the chiral compound, an optically anisotropic body and a liquid crystal display device. The structural formula of said chiral compound is as represented by the following formula I: The chiral compound has a high HTP value and a good solubility; a highly helical, twisted liquid crystal composition can be prepared by adding a small amount of the chiral compound; reducing the addition amount of the chiral compound can reduce the negative effect of the chiral compound on the parameters of the liquid crystal composition; under the conditions of the same addition ratio and the same helical pitch, the chiral compound can reduce the response time of the liquid crystal composition; in addition, the chiral compound has a simple structure and greatly reduces the synthesis cost.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: October 29, 2019
    Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.
    Inventors: Yongfeng Bao, Guoliang Yun, Jinsong Meng, Ming Li, Hubo Zhang, Lei Zhao, Zhian Liang
  • Patent number: 10459290
    Abstract: A film of 15 to 45 ?m thick containing a cellulose acylate and an aromatic ester oligomer having a repeating unit derived from a dicarboxylic acid and a repeating unit derived from a diol, in which the repeating unit derived from a dicarboxylic acid has a ratio m/n of from 0/10 to 3/7, m and n represent a molar proportion of a repeating unit derived from an aliphatic dicarboxylic acid and an aromatic dicarboxylic acid, respectively, and the film satisfies |Rth(590)|?50 nm; has a good appearance and is free of deterioration in display performance when the film with a thin thickness is produced in the form of a roll, achieves a high pencil hardness by imparting a high Knoop hardness to the film, even with a hard coat layer provided, and is free of display unevenness on installing the film in a liquid crystal display device.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: October 29, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Yoshiaki Hisakado, Masato Nagura, Yu Naito, Rikio Inoue, Yutaka Adegawa
  • Patent number: 10450509
    Abstract: Mesogenic media comprising one or more compounds of formulae I or II preferably mesogenic media showing a blue phase, preferably stabilized by a polymer, and their use in electro-optical light modulation elements and their respective use in displays, as well as such devices.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: October 22, 2019
    Assignee: MERCK PATENT GMBH
    Inventors: Michael Wittek, Norihiko Tanaka, Malgorzata Rillich, Volker Reiffenrath, Axel Jansen
  • Patent number: 10441936
    Abstract: Shown is a method for producing a liquid crystal capsule having a particle diameter of 30 to 150 nanometers, and a method for producing a liquid crystal capsule without using a homogenizer. The disclosure concerns a method for producing a liquid crystal capsule, including a step of preparing an emulsion by performing phase inversion emulsification of a mixed material obtained by mixing a liquid crystal composition, a monomer, a surfactant, and a polymerization initiator; and a step of producing a liquid crystal capsule by applying a coacervation method to the emulsion. The disclosure also concerns a liquid crystal capsule having a liquid crystal composition, a surfactant and a capsule wall, wherein the capsule wall has a closed curved shape, the liquid crystal composition and a hydrophobic moiety of the surfactant are arranged inside the capsule wall, and a hydrophilic moiety of the surfactant is arranged outside the capsule wall.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: October 15, 2019
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION, NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY
    Inventors: Tatsuo Taniguchi, Sho Hidaka, Eiji Okabe, Fumitaka Kondo
  • Patent number: 10437107
    Abstract: An object of the present invention is to provide a liquid-crystal display element using a liquid-crystal composition having negative dielectric anisotropy, capable of realizing excellent display characteristics by being used in a liquid-crystal display element provided with a photo-alignment film, without deteriorating various characteristics as a liquid-crystal display element such as dielectric anisotropy, viscosity, a nematic phase upper limit temperature, nematic phase stability at low temperatures, and ?1, and burn-in characteristics of a display element. A liquid-crystal display element using a liquid-crystal composition containing at least one compound selected from the group consisting of compounds represented by the following General Formula (I) is provided.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: October 8, 2019
    Assignee: DIC CORPORATION
    Inventors: Yoshinori Iwashita, Shinji Ogawa, Hiroshi Hasebe, Masanao Takashima
  • Patent number: 10435627
    Abstract: The subject is to show a liquid crystal display device that has characteristics such as a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio, a long service life and a small flicker rate. The disclosure relates to a liquid crystal display device including an electrode group formed on one or both of a pair of substrates that are opposed to each other, and a plurality of active devices connected to the electrode group, and a liquid crystal alignment film formed on the opposing surfaces of the pair of substrates, and a liquid crystal composition sandwiched in between the pair of substrates, and the liquid crystal composition includes at least one compound selected from the group of compounds represented by formula (1) as a first component.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: October 8, 2019
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yoshimasa Furusato, Masayuki Saito
  • Patent number: 10428273
    Abstract: Shown are a liquid crystal compound satisfying at least one of physical properties such as high stability to heat and light, a high clearing point (or high maximum temperature), low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and satisfactory compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound and a liquid crystal display device including the composition.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: October 1, 2019
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Kazuo Okumura, Tokifumi Masukawa, Keiji Kimura
  • Patent number: 10396329
    Abstract: A battery comprises a separator membrane comprising an ion-conducting polymeric composition comprising a copolymer of Ra-Rs and Rb. Ra and Rb are each selected from the group consisting of linear alkyls, branched alkyls, cyclic alkyls, heteroalkyls, aryls, heteroaryls, alkylaryls, and heteroalkylaryls. Rs is a positively charged amine group or a positively charged phosphene group. The copolymer comprises at least 3% of each Ra and Rb by weight. Ra and Rb are different chemical constituents, and Ra-Rs is not vinylpyridine.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: August 27, 2019
    Assignee: Dioxide Materials, Inc.
    Inventors: Richard I. Masel, Zengcai Liu
  • Patent number: 10392562
    Abstract: Provided is a polymerizable liquid crystal compound represented by formula (1). An aspect can be exemplified, in which, in formula (1), W1 is hydrogen or a substituent, A1 is 1,4-phenylene, 1,4-cyclohexylene or naphthalene-2,6-diyl, Z1 and Y1 are a connecting group, m and n each are an integer from 0 to 7, in which an expression: 3?m+n?8 holds, Q1 is a spacer, and PG is a polymerizable group.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: August 27, 2019
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Daisuke Ootsuki, Nagahisa Miyagawa
  • Patent number: 10385270
    Abstract: The present invention discloses a liquid crystal composition, comprising: at least a first compound selected from the group consisting of a compound of general Formula I-1, a compound of general Formula I-2, and a combination thereof, and at least a second compound selected from the group consisting of a compound of general Formula II-1, a compound of general Formula II-2, a compound of general Formula II-3, a compound of general Formula II-4 and a combination thereof. The liquid crystal composition provided in the present invention has the properties of appropriate optical and dielectric anisotropies, high clearing point, existence of a nematic phase over a wide range of temperature, low viscosity and good high-temperature stability. The liquid crystal composition is applicable to a liquid crystal display (LCD) device, to enable the LCD device to have such properties as short response time, excellent display effect at high temperature, and others.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: August 20, 2019
    Assignee: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Wenming Han, Haibin Xu, Dingfu Ma, Qi Liu
  • Patent number: 10370591
    Abstract: Provided are a liquid crystal device, a composition capable of forming a liquid crystal layer, a method of manufacturing the liquid crystal device, a system for manufacturing the liquid crystal device, and a use of the liquid crystal device. The liquid crystal device is a device capable of exhibiting, for example, a normally white or black mode, exhibiting a high contrast ratio, driven with a low driving voltage, and exhibiting excellent durability such as thermal stability. Such a liquid crystal device may be applied to various optical modulators such as a smart window, a window protective film, a flexible display device, an active retarder for displaying 3D images, or a viewing angle control film.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: August 6, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Sung Joon Min, Jung Sun You, Dong Hyun Oh
  • Patent number: 10359627
    Abstract: An apparatus for use in replicating an image associated with an input-pupil to an output-pupil includes a planar optical waveguide including a bulk-substrate, and also including an input-coupler, an intermediate-component and an output-coupler. The input-coupler couples light corresponding to the image into the bulk-substrate and towards the intermediate-component. The intermediate-component performs horizontal or vertical pupil expansion and directs the light corresponding to the image towards the output-coupler. The output-coupler performs the other one of horizontal or vertical pupil expansion and couples light corresponding to the image, which travels from the input-coupler to the output-coupler, out of the waveguide. The apparatus further includes an adjacent planar optical component to provide a more uniform intensity distribution compared to if the adjacent planar optical component were absent.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: July 23, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: R. Andrew Wall, Scott Woltman, Steven John Robbins, Xinye Lou, Gangok Lee, Yarn Chee Poon, Tuomas Vallius, Pasi Kostamo, Tapani Levola, Yijing Fu
  • Patent number: 10358600
    Abstract: A polymerizable LC material comprising at least one di- or multireactive mesogenic compound selected from the group of compounds of formula I, at least one monoreactive mesogenic compound selected from the group of compounds of formula II, wherein the parameter A11 to A21, L21, p, P11 to P22, R21, Sp11 to Sp21, X11 to X21, and Z11 to Z21 have one of the meanings as given in claim 1, and at least one carbazole oxime ester photoinitiator. Furthermore, a method for preparation of the polymerizable LC material, a polymer film with improved thermal durability obtainable from the corresponding polymerizable LC material, a method of preparation of such polymer film, and the use of such polymer film and said polymerizable LC material for optical, electro-optical, decorative or security devices.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: July 23, 2019
    Assignee: Merck Patent GmbH
    Inventors: Stephen Mulcahy, Iain Gardiner, Jack Bradford, Eduardo Beltran Gracia, Graham Smith
  • Patent number: 10344213
    Abstract: Provided are a reactive mesogen that may improve display quality of a liquid crystal display, and a liquid crystal composition including the same.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: July 9, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventor: Ho Lim
  • Patent number: 10336938
    Abstract: A liquid crystal composition containing a polymerizable liquid crystal compound (A) having 5 or more ring structures in its main chain and a polymer (B) of the polymerizable liquid crystal compound (A) having 5 or more ring structures in its main chain, which inhibits occurrence of an orientation defect of a liquid crystal compound and exhibits excellent storage stability when dissolved in a solvent is provided.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: July 2, 2019
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shinnosuke Yoshioka, Haruki Okawa, Daichi Fujimoto, Tatsuaki Kasai