Patents Examined by Geraldina Visconti
  • Patent number: 10754199
    Abstract: A liquid crystal composition, a liquid crystal display (LCD) device using the liquid crystal composition, and a method of manufacturing an LCD device are provided. The liquid crystal display device comprises: a first substrate; a liquid crystal layer disposed on the first substrate, the liquid crystal layer including a liquid crystal compound; and a first liquid crystal alignment layer disposed between the first substrate and the liquid crystal layer, wherein the first compound includes a first compound, which has at least one hydrophilic group bonded to one end of a core structure thereof and a benzoyl derivative moiety bonded to the other end of the core structure thereof.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: August 25, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Heung Shik Park, Kyeong Jong Kim, Ki Chul Shin
  • Patent number: 10752838
    Abstract: An object of the present invention is to provide a composition that realizes high ?n, has a wide liquid crystal phase temperature range, small viscosity, excellent low-temperature solubility, and high resistivity and voltage holding ratio, and is stable against heat and light, and to provide a liquid crystal composition having an excellent lens effect and excellent chemical stability using the composition, and a liquid crystal display device and a liquid crystal lens that use the liquid crystal composition. The present invention provides a liquid crystal composition that contains one or two or more compounds represented by general formula (i) and one or two or more compounds represented by general formula (ii), a liquid crystal display device using the liquid crystal composition, a liquid crystal lens using the liquid crystal composition, and a birefringence lens for stereoscopic image display using the liquid crystal composition.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: August 25, 2020
    Assignee: DIC CORPORATION
    Inventor: Haruki Ohishi
  • Patent number: 10745617
    Abstract: Provided are liquid crystal compounds and mixtures incorporating the same. The liquid crystal compounds of the invention generally comprise a cyclopentane group and at least two other rings. In one embodiment, the liquid crystal compounds of the invention comprise a cyclopentane group and at least two other rings, one of which is a fused ring system.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: August 18, 2020
    Assignee: VVI BRIGHT CHINA LTD
    Inventors: Xinhua Chen, R. Amaranatha Reddy
  • Patent number: 10738242
    Abstract: A compound and a polymer which can each form a photo-alignment film having excellent ability of controlling alignment, a photo-alignment film obtained using the polymer and an optically anisotropic body and a liquid crystal display element each having the photo-alignment film are provided. A compound represented by the general formula (1). In the formula, P represents a polymerizable group, Z and Z1 represent divalent linking groups, A and A1 represent divalent cyclic groups, and X1 to X5 each independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a hydroxy group, a nitro group, a cyano group or an alkyl group having 1 to 40 carbon atoms which may have a substituent, provided that X1, X2, X4 and X5 are not simultaneously hydrogen atoms.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: August 11, 2020
    Assignee: DIC CORPORATION
    Inventors: Fumiaki Kodera, Yoshitaka Saito, Hiroshi Hasebe, Masanao Takashima, Shuuhei Yamamoto, Kouzi Satou, Sayaka Nose, Kazuki Obi, Hiroyuki Itou
  • Patent number: 10723948
    Abstract: The invention relates to dielectrically positive liquid crystalline media comprising a compound of formula I wherein the parameters have the meaning given in claim 1 and to liquid crystal displays comprising these media, especially to active matrix displays and in particular to TN and IPS mode displays.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: July 28, 2020
    Assignee: MERCK PATENT GMBH
    Inventors: Harald Hirschmann, Martina Windhorst, Christian Hock, Andreas Pohle, Axel Jansen
  • Patent number: 10723947
    Abstract: Provided is a liquid crystal composition, comprising: one or more compounds of general formula I accounting for 1-30% of the total weight of the liquid crystal composition; one or more compounds of general formula II accounting for 1-30% of the total weight of the liquid crystal composition; one or more compounds of general formula III accounting for 1-20% of the total weight of the liquid crystal composition; and one or more compounds of general formula IV accounting for 30-80% of the total weight of the liquid crystal composition. The liquid crystal composition has at least one of the following properties: a large specific resistance, a high voltage holding ratio, a suitable optical anisotropy, a large dielectric anisotropy, a small viscosity, a low threshold voltage, etc., and is also green and environmentally friendly.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: July 28, 2020
    Assignee: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Yunyun Liu, Wenming Han, Wenquan Ding, Pengfei Li, Haibin Xu, Lifang Yao, Di He, Wenyang Ma, Heming Zhang, Junqiang Zhang
  • Patent number: 10723949
    Abstract: Disclosed is a liquid crystal composition including at least one compound selected from the group consisting of a liquid crystal compound expressed by Formula 1-1 and a liquid crystal compound expressed by Formula 1-2; at least one compound selected from the group consisting of a self-alignment compound expressed by Formula 2-1 and a self-alignment compound expressed by Formula 2-2; and at least one compound selected from the group consisting of a reactive mesogen expressed by Formula 3-1, a reactive mesogen expressed by Formula 3-2, a reactive mesogen expressed by Formula 3-3, a reactive mesogen expressed by Formula 3-4, and a reactive mesogen expressed by Formula 3-5. The liquid crystal composition also has negative dielectric anisotropy.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: July 28, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun Young Kwon, Min-Hee Kim, Ji Eun Jang, Il Joon Kang, Jong Ho Son, Keun Chan Oh, Chang-Hun Lee
  • Patent number: 10723952
    Abstract: The present invention provides a polymerizable compound that reduces, for example, the likelihood of crystals precipitating in a polymerizable composition including the polymerizable compound and enables the polymerizable composition to have high preservation stability and a polymerizable composition including the polymerizable compound which reduces the likelihood of inconsistencies being formed in a film-like polymer produced by polymerizing the polymerizable composition. Also provided are a polymer produced by polymerizing the polymerizable composition and an optically anisotropic body including the polymer. The present invention provides the compound represented by General Formula (I), a composition including the compound, a polymer produced by polymerizing the composition, and an optically anisotropic body including the polymer.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: July 28, 2020
    Assignee: DIC CORPORATION
    Inventors: Masahiro Horiguchi, Yutaka Kadomoto, Tetsuo Kusumoto
  • Patent number: 10723951
    Abstract: The invention relates to compounds of the formula I, in which R, A, Z, m, L1, L2, L3 and X have the meanings indicated in Claim 1, to a process for the preparation thereof, and to liquid-crystalline media comprising at least one compound of the formula I and to electro-optical displays containing a liquid-crystalline medium of this type.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: July 28, 2020
    Assignee: MERCK PATENT GMBH
    Inventors: Christian Jasper, Susann Gunst, Helmut Haensel, Brigitte Schuler
  • Patent number: 10723950
    Abstract: The present application relates to mixtures which have liquid-crystalline properties. The application furthermore relates to the use of the mixtures in devices which regulate the transmission of light through an area element.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: July 28, 2020
    Assignee: MERCK PATENT GMBH
    Inventors: Michael Junge, Ursula Patwal, Peer Kirsch
  • Patent number: 10711197
    Abstract: The present invention relates to liquid-crystalline media comprising one or more compounds selected from the group of compounds of formulae I, II and III, in which the parameters R1-R3, Z21, Z31, Z32 and rings A11, A12, A13, A21, A22, A31, and A32 are as defined herein, and to components comprising these media for high-frequency technology, in particular phase shifters and microwave array antennas.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: July 14, 2020
    Assignee: MERCK PATENT GMBH
    Inventors: Michael Wittek, Dagmar Klass, Atsutaka Manabe, Christian Jasper, Volker Reiffenrath, Constanze Brocke, Detlef Pauluth
  • Patent number: 10711195
    Abstract: The present invention relates to liquid crystal mixtures comprising one or more compounds of the formula A and, in addition one or more compounds of formula I or one or more compounds of formula II wherein the individual radicals have the respective meanings indicated in claim 1, to the use thereof for high-frequency components, and to high-frequency components, in particular antennae, especially for the gigahertz range, comprising these media.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: July 14, 2020
    Assignee: Merck Patent GmbH
    Inventors: Atsutaka Manabe, Christian Jasper, Volker Reiffenrath, Constanze Brocke, Detlef Pauluth, Dagmar Klass, Renate Seeger
  • Patent number: 10703974
    Abstract: Provided is a liquid crystal compound represented by formula I, the compound having a positive dielectric anisotropy, a great elastic constant and a good solubility. Further provided is a liquid crystal composition comprising the liquid crystal compound represented by formula I, the liquid crystal composition having a good stability against light and heat, a lower viscosity, a wider refractive index that may be achieved by the adjustment of the monomer ratio, and a higher clearing point (a very wide service temperature range), and in particular, the liquid crystal composition has a higher light transmittance, thus allowing a display device to have a higher brightness or an energy saving effect.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: July 7, 2020
    Assignee: SHIJIAHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.
    Inventors: Guoliang Yun, Ke-Lun Shu, Zhe Shao, Xing Zhang, Jianming Cheng, Limei Zhang
  • Patent number: 10703973
    Abstract: The present invention provides a polymerizable composition containing a polymerizable liquid crystal compound represented by Formula (I) and an oxime compound, in the formula, A1 and A2 each represent a phenylene group or a trans-1,4-cyclohexylene group, L1 and L2 each represent single bond, —C(?O)O—, or —OC(?O)—, Q1 and Q2 each represent a polymerizable group or the like, m and n represent an integer of 0 to 2, X may represent —X3-Sp3-Q3 or two X's may be bonded to each other to form a fused ring, X3 represents —C(?O)O—, Sp1, Sp2, and Sp3 each represent single bond, an alkylene group, or the like, Q3 represents hydrogen atom, a cycloalkyl group, a polymerizable group, or the like, and l represents an integer of 0 to 4. The polymerizable composition hardly causes yellowing after curing and is useful for manufacturing a film and a half mirror for displaying a projection image.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: July 7, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Shunya Katoh, Shinnosuke Sakai, Yuki Saiki, Akihiro Anzai
  • Patent number: 10689576
    Abstract: Provided are a liquid crystal composition that contains a polar compound having a polymerizable group, in which vertical alignment of liquid crystal molecules can be achieved by action of the compound (or polymer), and a liquid crystal display device including the composition. The composition satisfies 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 heat.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: June 23, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventor: Masayuki Saito
  • 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: 10683456
    Abstract: Provided is a composition which can be used for formation of an optical film having high quality and a high dichroic ratio even after the composition is stored for a predetermined period of time. The composition includes a compound represented by the general formula (A) and a compound represented by the general formula (B), wherein R1a in the general formula (A) and R1b in the general formula (B) are mutually different groups.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: June 16, 2020
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masao Morimoto, Noriyuki Hida
  • Patent number: 10676669
    Abstract: A compound represented by formula (1), a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. R is alkyl having 1 to 15 carbons or the like; ring A1 and ring A2 are independently 1,4-cyclohexylene, 1,4-phenylene or the like; Z1 and Z2 are independently a single bond, —COO— or the like; Y1, Y2 and Y3 are independently hydrogen, fluorine or chlorine; and m is 0, 1 or 2.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: June 9, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Mayumi Goto, Sayaka Fujimori
  • Patent number: 10669483
    Abstract: The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to 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 polymer sustained alignment type.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: June 2, 2020
    Assignee: Merck Patent GmbH
    Inventors: Qiong Tong, Helga Haas, Thorsten Kodek, Peer Kirsch, Constanze Brocke, Eveline Baron, Christoph Marten
  • Patent number: 10669482
    Abstract: A liquid crystal composition including a polymerizable liquid crystal compound capable of expressing birefringence with reverse wavelength distribution and a surfactant containing a fluorine atom, a 1-octanol/water partition coefficient of the surfactant being less than 5.0.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: June 2, 2020
    Assignee: ZEON CORPORATION
    Inventors: Akira Ikeda, Shunpei Nakajima, Masaya Miyamura, Yuki Tamura