Patents Examined by Anna Malloy
  • Ultraviolet light absorbers
    Patent number: 10619098
    Abstract: Compounds that have ultraviolet light absorbing properties, and which can also have mesogenic properties. Compositions that include one or more such compounds. Articles of manufacture that include one or more such compounds, such as optical elements that include an optical substrate and a layer that includes at least one such compound.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: April 14, 2020
    Assignee: Transitions Optical, Inc.
    Inventors: Ramaiahgari Reddy, Cory S. Brown, Alan Grubb, Meng He, Anil Kumar, Ruisong Xu
  • Antioxidant having difluoromethoxy group, liquid crystal composition, and liquid crystal display device
    Patent number: 10584284
    Abstract: A compound represented by formula (1), a liquid crystal composition to which the compound is added, and a liquid crystal display device containing the composition. In formula (1), R1 is hydrogen or alkyl having 1 to 20 carbons, or the like; R2 and R3 are independently methyl, ethyl, isopropyl, or t-butyl; ring A is 1,4-cyclohexylene, 1,4-phenylene or the like; Z is a single bond or alkylene having 1 to 6 carbons, or the like; and m is 0, 1, or 2.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: March 10, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yasuyuki Gotoh, Teizi Satou
  • Liquid crystal composition and application thereof
    Patent number: 10557082
    Abstract: A liquid crystal composition and use thereof in the liquid crystal display field. The liquid crystal composition includes, in percentages by weight, 5-40% of one or more compounds represented by general formula I, 2-30% of one or more compounds represented by general formula II, and 20-70% of one or more compounds represented by general formula III, and may further include 4-30% of one or more compounds represented by general formula IV and/or 5-25% of one or more compounds represented by general formulas V to IX. The combined use of the above-mentioned compounds can effectively reduce the rotational viscosity of the liquid crystal composition, improve related properties of the mixed liquid crystal, and thus reduce the response time thereof. The liquid crystal composition can be used for a fast-response liquid display in a variety of display modes.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: February 11, 2020
    Assignee: BEIJING BAYI SPACE LCD TECHNOLOGY CO., LTD
    Inventors: Maoxian Chen, Haiguang Chen, Shihong Chu, Tianmeng Jiang, Xin Wei, Lin Zhang, Huiqiang Tian, Qinghua Li, Jin Yuan, Yunpeng Guo, Xuehui Su
  • Polymerisable compounds and the use thereof in liquid-crystal displays
    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
  • Liquid-crystalline medium
    Patent number: 10465114
    Abstract: A liquid-crystalline medium which is suitable for use in a guest-host system. An LC device, preferably a device for the regulation of the passage of energy, containing the liquid-crystalline medium.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: November 5, 2019
    Assignee: MERCK PATENT GMBH
    Inventors: Michael Junge, Andreas Beyer, Ursula Patwal, Peer Kirsch, Susann Beck
  • Liquid-crystalline medium, method for the stabilization thereof, and liquid-crystal display
    Patent number: 10465117
    Abstract: Compounds of the formula I, and a liquid-crystalline medium, preferably having a nematic phase and negative dielectric anisotropy, which comprises a) one or more compounds of the formula I and b) one or more compounds of the formula II in which the parameters have the respective meanings indicated in Claim 1. The use thereof in an electro-optical display, particularly in an active-matrix display based on the VA, ECB, PALC, FFS or IPS effect. Displays of this type which contain a liquid-crystalline medium of this type. Use of the compounds of the formula I for the stabilization of a liquid-crystalline medium which comprises one or more compounds of the formula II.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: November 5, 2019
    Assignee: Merck Patent GmbH
    Inventors: Mark Goebel, Eveline Baron, Rocco Fortte, Detlef Pauluth
  • Liquid crystal display and liquid crystal composition comprised thereof
    Patent number: 10459292
    Abstract: A liquid crystal display includes a first substrate, a second substrate opposing the first substrate, an electrode portion provided on at least one of the first and second substrates, and a liquid crystal layer provided between the first substrate and the second substrate and including a liquid crystal composition. The liquid crystal composition includes a liquid crystal compound including a cyclohexenylene group, and provides the liquid crystal display with low rotary viscosity and high voltage holding ratio.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: October 29, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joon Hyung Park, Kyung Hae Park, Jong Ho Son, Jin Hyeong Lee, Hye Lim Jang
  • Compounds and liquid-crystalline medium
    Patent number: 10457871
    Abstract: Compounds of formula I, in which X1, X2, Sp, and R are as defined herein, are suitable for use in liquid-crystal media, such as liquid-crystal media used in liquid-crystal displays.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: October 29, 2019
    Assignee: MERCK PATENT GMBH
    Inventors: Achim Goetz, Rocco Fortte, Martin Engel, Sabrina Maag, Ingo Almeroth, Thomas Mergner, Thorsten Kodek, Detlef Pauluth
  • Liquid crystal composition and liquid crystal display including the same
    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
  • Liquid crystal medium and liquid display
    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
  • Mesogenic compounds, liquid crystal media and components for high frequency technology
    Patent number: 10442990
    Abstract: A liquid-crystal medium having a component A which is one or more compounds of the formula IA and corresponding, novel mesogenic compounds and the preparation thereof. These liquid-crystal media, are used in components for high-frequency technology, and to components of this type which contain the media. The components are suitable, in particular, for phase shifters in the microwave and millimeter wave region, for microwave and millimeter wave array antennae and very particularly for so-called tunable “reflectarrays”.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: October 15, 2019
    Assignee: Merck Patent GmbH
    Inventors: Christian Jasper, Elvira Montenegro, Detlef Pauluth, Volker Reiffenrath, Atsutaka Manabe
  • Liquid crystal composition and liquid crystal display device
    Patent number: 10442993
    Abstract: A liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy and large dielectric anisotropy, or having a suitable balance regarding at least two of the characteristics. The liquid crystal composition contains a quencher as a first additive, and may contain a specific compound having large negative dielectric anisotropy as a first component, a specific compound having high maximum temperature or small viscosity as a second component, or a specific compound having a polymerizable group as a second additive.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: October 15, 2019
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventor: Masayuki Saito
  • Liquid crystal composition and liquid crystal display device
    Patent number: 10442992
    Abstract: A nematic liquid crystal composition has negative dielectric anisotropy and contains at least one polar compound selected from the group of compounds represented by formula (1) as a first additive, and the liquid crystal display device includes the composition. In formula (1), R1 is hydrogen, halogen, alkyl having 1 to 12 carbons or the like; R2 is a group represented by —OH, —OR0, —NH2, —NHR0 or —N(R0)2, in which R0 is alkyl having 1 to 5 carbons; ring A and ring B are independently 1,4-cyclohexylene, 1,4-phenylene or the like; Z1 is a single bond or the like; Sp1 and Sp2 are independently a single bond, alkylene having 1 to 7 carbons or the like; and a is 0 to 4.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: October 15, 2019
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Masayuki Saito, Kazuhiro Ogita, Fumitaka Kondo
  • Method for preparing liquid crystal capsule
    Patent number: 10423023
    Abstract: A method of preparing a liquid crystal capsule and the use of the liquid crystal capsule. The liquid crystal capsule has advantages in that transmittance and stability are improved and the degree of scattering is uniform.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: September 24, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Dong Hyun Oh, Sung Joon Min, Jung Sun You, Kyung Jun Kim
  • Liquid crystal composition and a liquid crystal display including the same
    Patent number: 10421907
    Abstract: A liquid crystal display includes a first base substrate, a second base substrate, an electrode part, and a liquid crystal layer. The second base substrate is disposed opposite to the first base substrate. The electrode part is disposed on at least one of the first base substrate and the second base substrate. The liquid crystal layer is disposed between the first base substrate and the second base substrate. The liquid crystal layer includes a liquid crystal composition. The liquid crystal composition includes at least one kind of liquid crystal compounds including a cyclopentadienyl group.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: September 24, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min Hee Kim, So Youn Park, Tae Ho Kim, Mi Hwa Lee, Kyung Ho Park, Chang Hun Lee
  • Polymerizable compounds and the use thereof in liquid-crystal displays
    Patent number: 10414743
    Abstract: The present invention relates to polymerizable 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 sustained”) or PSA (“polymer sustained alignment”) type.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: September 17, 2019
    Assignee: MERCK PATENT GMBH
    Inventors: Andreas Taugerbeck, Achim Goetz, Alexander Hahn, Martin Engel
  • Polymerizable dichroic dyes
    Patent number: 10385215
    Abstract: New dichroic dyes having a composition with slave materials. The dyes may be used for a dichroic polymer network, a dichroic liquid crystalline polymer film (LCP film) or a dichroic liquid crystalline polymer gel, which for instance find application as electro-optical or optical devices.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: August 20, 2019
    Assignee: ROLIC AG
    Inventors: Cedric Klein, Frederic Lincker, Frederic Reveaud
  • Photoresist composition
    Patent number: 10377692
    Abstract: A photoresist composition comprising a resin which comprises a structural unit derived from a compound having an acid-labile group and which is insoluble or poorly soluble in an alkali aqueous solution but becomes soluble in an alkali aqueous solution by the action of an acid, an acid generator and a compound represented by the formula (I?): wherein R51, R52, R53 and R54 independently each represent a C1-C8 alkyl group, and A11 represents a C3-C36 divalent saturated cyclic hydrocarbon group which can contain one or more heteroatoms and which have one or more substituents or a C6-C20 divalent aromatic hydrocarbon group which can contain one or more heteroatoms and which have one or more substituents.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: August 13, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Akira Kamabuchi, Yuko Yamashita
  • Liquid crystal polymer
    Patent number: 10377851
    Abstract: A resin does not need to incorporate a fluorescent substance and exhibits fluorescence itself. Also, a liquid crystal polymer is provided which does not contain a bleeding out substance such as hydrophobic silica and barium sulfate and which has an effect of suppressing fibrillation in the resin itself. A liquid crystal polymer includes a copolymer of a polymerizable monomer (A) selected from the group consisting of pyromellitic acid or anhydride thereof and a reactive derivative thereof and a polymerizable monomer (B).
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: August 13, 2019
    Assignee: UENO FINE CHEMICALS INDUSTRY, LTD.
    Inventors: Shinobu Ishizu, Hisanari Fujiwara, Akihito Ota
  • Liquid crystal device
    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