Patents Examined by Geraldina Visconti
  • Patent number: 11914293
    Abstract: The invention relates to a radiation-curable mixture for generating relief structures, comprising a) at least one functionalized, part-hydrolyzed polyvinyl acetate comprising (i) vinyl alcohol units, (ii) vinyl acetate units, and (iii) vinyl acrylate units, where the vinyl acrylate units, which can be substituted, have the general structure where R is hydrogen or a linear or branched aliphatic or heteroaliphatic radical having 1 to 12 carbon atoms, or a cycloaliphatic, heterocyclic or aromatic radical having 3 to 12 carbon atoms, as component A, b) at least one initiator as component B, c) at least one ethylenically unsaturated compound different from component A, as component C, d) one or more adjuvants as component D, wherein the amount of vinyl acrylate units (iii) in the functionalized, part-hydrolyzed polyvinyl acetate a), based on all the units (i), (ii), and (iii), is 0.1 to <3 mol %, and component D comprises an additive capable of hydrogen bonding, in an amount of 0.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: February 27, 2024
    Assignee: Flint Group Germany GmbH
    Inventors: Christian Pietsch, Armin Becker, Uwe Krauss, Thomas Telser
  • Patent number: 11905417
    Abstract: The present invention relates to an anthraquinone compound represented by formula (1) (in formula (1), R1 represents a C1-9 alkyl group and R2 represents a C1-8 alkyl group): a yellow dichroic pigment that includes this compound; a liquid crystal composition for light control that contains this yellow dichroic pigment and a liquid crystal material; and a light control element that uses this composition.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: February 20, 2024
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Kohei Ohtani, Hitomi Muto, Saori Suzuki, Takashi Yoshimoto
  • Patent number: 11905448
    Abstract: The present invention relates to a liquid-crystal (LC) medium comprising polymerizable compounds, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PSA (polymer sustained alignment) or SA (self-aligning) mode, to an LC display of the PSA or SA mode comprising the LC medium, and to a process of manufacturing the LC display.
    Type: Grant
    Filed: October 20, 2022
    Date of Patent: February 20, 2024
    Assignee: MERCK PATENT GMBH
    Inventors: Hye-Ryung Park, Eun-Kyu Lee, Yen-Kai Huang
  • Patent number: 11884864
    Abstract: An object is to provide a method for producing a liquid-crystal polyester processed product, the method improving the adhesion of a liquid-crystal polyester resin, which is a poorly adhesive resin. As a solution, a method for producing a liquid-crystal polyester processed product, including a step (I) of performing an oxidation treatment on a surface of a liquid-crystal polyester resin formed body including a repeating unit represented by general formula (1), is provided.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: January 30, 2024
    Assignee: HONSHU CHEMICAL INDUSTRY CO., LTD.
    Inventors: Ryota Imai, Katsuhiko Kaneshige
  • Patent number: 11886112
    Abstract: A curable composition includes: a near infrared absorbing colorant having a group represented by the following Formula (1); and a curable compound. In the formula, G1 represents NRG1 or an oxygen atom, and RG1 represents a hydrogen atom or a monovalent substituent. G2 represents a monovalent substituent having a -Es? value of 2.4 or higher as a steric parameter.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: January 30, 2024
    Assignee: FUJIFILM Corporation
    Inventor: Tokihiko Matsumura
  • Patent number: 11873439
    Abstract: The invention relates to a polymerisable LC material comprising one or more di- or multireactive mesogenic compounds and one or more compounds of formula UVI, wherein the individual radicals have one of the meaning as given in the claims. Furthermore, the present invention relates also to a method for its preparation, a polymer film with improved thermal durability and UV stability obtainable from a corresponding polymerisable LC material, to a method of preparation of such polymer film, and to the use of such polymer film and said polymerisable LC material for optical, electro-optical, decorative or security devices.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: January 16, 2024
    Assignee: MERCK PATENT GMBH
    Inventors: Yong-Hyun Choi, Jae-Hyun Kang, Hyun-Jin Yoon
  • Patent number: 11851599
    Abstract: A liquid crystal composition and a liquid crystal display device including the liquid crystal composition include at least one compound of general formula I and at least one compound of general formula II. Compared with the prior art, the liquid crystal composition has a smaller voltage change rate at high and low temperatures and a shorter low temperature response time, while maintaining an appropriate optical anisotropy, an appropriate clearing point, an appropriate absolute value of dielectric anisotropy, such that the liquid crystal display device having the liquid crystal composition has a better display and a faster response speed.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: December 26, 2023
    Assignee: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Di He, Wenquan Ding, Haibin Xu, Shuang Xu, Lifang Yao
  • Patent number: 11851600
    Abstract: An optical component and a electro optical devices comprising the optical component. Further, a cholesteric polymerizable liquid crystalline (LC) material, preferably utilized in an optical component in accordance with the present invention, a process for the production of the cholesteric polymerizable LC material, a process to convert the cholesteric polymerizable material into a polymer film, a polymer film obtainable from the cholesteric polymerizable LC material, and the use of the polymer films in an optical component or device comprising a polymer film.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: December 26, 2023
    Assignee: Merck Patent GmbH
    Inventors: Stephen Mulcahy, Owain Llyr Parri
  • Patent number: 11834599
    Abstract: Aromatic isothiocyanates of formula C liquid-crystalline media comprising one or more compounds of formula C, and high-frequency components comprising these media, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, tunable filters, tunable metamaterial structures, and electronic beam steering antennas, e.g. phased array antennas.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: December 5, 2023
    Assignee: Merck Patent GmbH
    Inventors: Constanze Brocke, Dmitry Ushakov, Dagmar Klass, Carsten Fritzsch
  • Patent number: 11820931
    Abstract: The present disclosure relates to a liquid crystal polyester resin composition and an electronic component material comprising the same with low dust characteristics. Specifically, the present disclosure relates to a liquid crystal polyester resin composition for preventing dust generation comprising 65% by weight or more and 85% by weight or less of a liquid crystal polyester resin; more than 0.5% by weight and less than 10% by weight of a transition metal compound containing a Group 6 element of the periodic table; 2% by weight or more and 10% by weight or less of a barium compound; 2% by weight or more and 10% by weight or less of an organic filler; and 12% by weight or more and 30% by weight or less of a filler.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: November 21, 2023
    Assignee: SEYANG POLYMER
    Inventors: Tae-Young Ha, Hyuk Jin Kim, Soo Min Park, Hong Sun Na, Sun Hwa Jang, Youn Eung Lee, Jin Kyu Lee
  • Patent number: 11802243
    Abstract: A liquid-crystal (LC) media having a negative dielectric anisotropy containing a compound of formula I and the use of the LC media for optical, electro-optical and electronic purposes, in particular in energy-efficient LC displays, especially in IPS, FFS, VA or PS-VA displays.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: October 31, 2023
    Assignee: Merck Patent GmbH
    Inventors: Jing Wang, Ping Zhao, Chang-Suk Choi
  • Patent number: 11796716
    Abstract: An optical film includes a block copolymer film defining a plurality of helically shaped cavities and a plurality of helically shaped organic solid crystals positioned within the plurality of helically shaped cavities. A method of making the optical film includes obtaining a film of a block copolymer solution including a chiral block copolymer and a non-chiral block copolymer on a substrate. The method includes annealing the film, thereby forming a plurality of helical structures from the chiral block copolymer defined within the non-chiral block copolymer and removing the plurality of helical structures, thereby creating a plurality of helically shaped cavities. The method further includes forming organic solid crystals inside the plurality of helically shaped cavities, thereby forming the optical film.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: October 24, 2023
    Assignee: META PLATFORMS TECHNOLOGIES, LLC
    Inventors: Sheng Ye, Li Yao, Tingling Rao, Lafe Joseph Purvis, II, Tanya Malhotra, Andrew John Ouderkirk, Arman Boromand
  • Patent number: 11795398
    Abstract: The invention relates to a liquid-crystalline medium having a nematic phase comprising one or more compounds of formula X wherein the parameters have the meaning given in the text, to the use thereof in an electro-optical display, particularly in an active-matrix display based on the IPS or FFS effect, to displays of this type which contain a liquid-crystalline medium of this type and to the use of the compounds of formula X for improvement of the transmission and/or response times of a liquid-crystalline medium which comprises one or more additional mesogenic compounds, as well as to the compounds of formula X.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: October 24, 2023
    Assignee: MERCK PATENT GMBH
    Inventors: Atsutaka Manabe, Constanze Brocke, Brigitte Schuler
  • Patent number: 11796856
    Abstract: An optical film includes a plurality of helically arranged liquid crystals and organic solid crystal structures at least partially surrounding the plurality of helically arranged liquid crystals. A method of making the optical film includes obtaining a substrate with an alignment layer and a film of a first solution on the alignment layer. The first solution includes liquid crystals and organic crystal molecules. The liquid crystals form a plurality of helically arranged liquid crystals on the alignment layer. The method also includes forming organic solid crystal structures by crystallizing the organic crystal molecules. The organic solid crystal structures at least partially surround the plurality of helically arranged liquid crystals.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: October 24, 2023
    Assignee: META PLATFORMS TECHNOLOGIES, LLC
    Inventors: Sheng Ye, Ryan Li, Tingling Rao, Lafe Joseph Purvis, II, Oleg Yaroshchuk, Tanya Malhotra, Andrew John Ouderkirk
  • Patent number: 11795399
    Abstract: Suggested are new adhesion promoters, which are particular suitable for use in displays. Its inclusion in the polymerisable LC mixture results in an excellent adhesion on substrate without colouration over time i.e. compared to amino siloxanes. The new additives have no effect on alignment of LC on the substrate while improving the adhesion.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: October 24, 2023
    Assignee: MERCK PATENT GMBH
    Inventors: Hassan Arasi, Kevin Adlem, Stephen Mulcahy, Iain Gardiner
  • Patent number: 11788010
    Abstract: A liquid crystal composition includes at least one compound of general formula F and at least one compound of general formula N. A liquid crystal display device includes the liquid crystal composition. The liquid crystal composition has a larger K value, a smaller rotational viscosity, a higher VHR value, a longer low temperature storage time and a shorter response time while maintaining an appropriate clearing point, an appropriate optical anisotropy, and an appropriate absolute value of dielectric anisotropy, such that the liquid crystal display device including the liquid crystal composition has a better contrast, a wider temperature range for application, a faster response speed, a better contrast and a higher reliability.
    Type: Grant
    Filed: October 26, 2022
    Date of Patent: October 17, 2023
    Assignee: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Chenglong Sun, Yafei Yang, Tengyun Zhao, Rongrong Li, Huijuan Dai, Panpan Wang, Di He, Wenquan Ding
  • Patent number: 11788008
    Abstract: There is provided the use of an aligned nematic elastomer to form a material having auxetic properties wherein the aligned nematic material has a mechanical Fréedericksz transition. Also provided is a method of producing an aligned nematic elastomer for said use.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: October 17, 2023
    Assignee: University of Leeds
    Inventors: Helen Frances Gleeson, Devesh Arvind Mistry
  • Patent number: 11781069
    Abstract: The present invention relates to an LC medium comprising and a liquid-crystalline host consisting of an LC component H) comprising one or more mesogenic or liquid-crystalline compounds and an optically active component D) and optionally a polymerizable component P) comprising one or more polymerizable compounds; and to the use of the polymerizable 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 19, 2018
    Date of Patent: October 10, 2023
    Assignee: MERCK PATENT GMBH
    Inventor: Kirsten (Min-Chu) Liao
  • Patent number: 11781070
    Abstract: The present invention relates to mesogen compounds that include first, second, and third mesogens, in which the first and second mesogens are connected by a first linking group (-L1-), and the second and third mesogens are connected by a second linking group (-L2-), as represented by the following Formula (I), and as graphically illustrated by Formula (Ia) of FIG. 1 of the drawing: (Mesogen-1)-L1-(Mesogen-2)-L2-(Mesogen-3)??(I) At least one of Mesogen-1, Mesogen-2, or Mesogen-3 include at least four cyclic groups. The linking groups -L1- and -L2- are each free of mesogen properties (are each non-mesogenic) and each independently have an average chain length of at least 20 bonds. The mesogen compounds are optionally polymerizable. The present invention also relates to liquid crystal compositions that include such mesogen compounds, and to optical elements that include such mesogen compounds, such as in one or more mesogen-containing layers.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: October 10, 2023
    Assignee: Transitions Optical, Ltd.
    Inventors: Ramaiahgari Reddy, Yannian Li, Alan M. Grubb
  • Patent number: 11773326
    Abstract: The present invention relates to mesogen compounds that include a first mesogen (Mesogen-1) and a second mesogen (Mesogen-2) that are connected by a linking group (-L-), as represented by the following Formula (I): Mesogen-1, and optionally Mesogen-2, each independently include the following terminal group, where R is hydrogen, alkyl, or alkoxy. Mesogen-2 optionally includes a terminal group P—, which is selected from R, acrylate, methacrylate, trihalomethacrylate, oxirane, hydroxyl, carboxylic acid, and carboxylic acid ester. Mesogen-1 and Mesogen-2 together include a total of at least seven, or at least eight, cyclic groups. In some cases, Mesogen-1 and Mesengen-2 are the same. The present invention also relates to liquid crystal compositions that include such mesogen compounds, and to optical elements that include such mesogen compounds.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: October 3, 2023
    Assignee: Transitions Optical, Ltd.
    Inventors: Ramaiahgari Reddy, Alan M. Grubb, Anil Kumar, Yannian Li, Suvagata Tripathi