Patents Examined by Geraldina Visconti
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Patent number: 11964933Abstract: The present invention relates to aromatic isothiocyanates of formula U as defined in claim 1, to liquid-crystalline media comprising one or more compounds of formula U and to 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: GrantFiled: October 8, 2020Date of Patent: April 23, 2024Assignee: MERCK PATENT GMBHInventors: Constanze Brocke, Dmitry Ushakov, Carsten Fritzsch, Dagmar Klass
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Patent number: 11959005Abstract: The invention relates to novel polymerizable liquid crystals of formula (I), to LCP mixtures comprising these compounds and to their uses for optical and electro-optical devices: with the proviso the at least one of the polymerisable groups G1 or G2 is a naphthalenediyl group.Type: GrantFiled: March 16, 2020Date of Patent: April 16, 2024Assignee: ROLIC TECHNOLOGIES AGInventor: Sabrina Chappellet
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Patent number: 11952524Abstract: The invention relates to novel compositions comprising at least two anisotropic compounds of formula as well as to liquid crystalline networks, films and electro-optical devices comprising the compositions.Type: GrantFiled: August 24, 2020Date of Patent: April 9, 2024Assignee: ROLIC TECHNOLOGIES AGInventors: Sabrina Chappellet, Richard Frantz
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Patent number: 11952526Abstract: The present invention relates to liquid-crystalline (LC) media and to LC displays (LCDs) containing these media, in particular to LCDs of the twisted nematic (TN) mode, preferably to displays of the LCOS (LC on silicon) mode.Type: GrantFiled: August 26, 2020Date of Patent: April 9, 2024Assignee: MERCK PATENT GMBHInventors: Nicole (I-Yun) Huang, Eason (Chi-Shun) Huang, Ray (Kuang-Ting) Chou
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Patent number: 11939508Abstract: The disclosure belongs to the technical field of liquid crystal materials, and specifically relates to a polymerizable compound, a preparation method therefor, and the use thereof. The polymerizable compound has a structure as shown in general formula I. Compared with the existing polymerizable RM, the polymerizable compound has the advantages of a good solubility, a faster polymerization rate, a more complete extent of polymerization, and less residues, thereby improving the problem of poor display to a great extent.Type: GrantFiled: December 1, 2020Date of Patent: March 26, 2024Assignee: BEIJING BAYI SPACE LCD TECHNOLOGY CO., LTD.Inventors: Xiong Dai, Kun Jiang, Pei Xie, Haiwei Zhang, Jianbo Sun, Youwen Cheng, Bin Hou, Yijie Tang
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Patent number: 11939507Abstract: A liquid crystal polymer powder that includes a fiber portion having fibrous liquid crystal polymer particles with an aspect ratio of a length in a longitudinal direction thereof to a fiber diameter of 10 times or more. In the liquid crystal polymer powder, an average diameter of the fiber portion is 1 ?m or less, and a content of a substantially unfiberized lump portion is 20% or less.Type: GrantFiled: March 18, 2022Date of Patent: March 26, 2024Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Hiroyuki Ohata
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Patent number: 11939510Abstract: The invention relates to a polymerisable LC material comprising at least one di- or multireactive mesogenic compound of formula T, RT1-(AT1ZT1)m1-GT1-(ZT2-AT2)m2-RT2??T and at least one compound of formula CO-1, wherein the parameter are RT1, AT1, ZT1, m1, GT1, ZT2, AT2, m2, RT2, L1 to L3, R1 and R2, and n are defined as given in claim 1. Furthermore, the present invention relates also to a method for its preparation, a polymer film with improved thermal durability obtainable from the 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: GrantFiled: August 13, 2018Date of Patent: March 26, 2024Assignee: MERCK PATENT GMBHInventors: Eduardo Beltran Gracia, Kevin Adlem, Naomi Weare, Hassan Norouzi-Arasi
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Patent number: 11939509Abstract: A liquid-crystalline medium which comprises at least one compound selected from the group of compounds of the formulae IA to IH, in which Z1 denotes a single bond, —CH2CH2—, —CH?CH—, —CH2O—, —OCH2—, —CF2O—, —OCF2—, —COO—, —OCO—, —C2F4—, —(CH2)4—, —CHFCHF—, —CF2CH2—, —CH2CF2—, —C?C—, —CF?CF—, —CH?CHCHO— or —CH2CF2O—, and the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PALC, FFS, PS-FFS, SA-VA, PS-IPS or IPS effect.Type: GrantFiled: February 3, 2021Date of Patent: March 26, 2024Assignee: MERCK PATENT GMBHInventors: Harald Hirschmann, Monika Bauer, Martina Windhorst, Marcus Reuter, Kristin Weiss
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Patent number: 11939512Abstract: The present invention relates to compositions comprising a combination of benzothiadiazole and thiadiazoloquinoxaline derivatives, to liquid-crystalline media containing the compositions, and to the use of the compositions and the media in optical, electronic and electro-optical devices, in particular in devices for regulating the passage of energy from an outside space into an inside space, for example in switchable windows.Type: GrantFiled: November 21, 2019Date of Patent: March 26, 2024Assignee: Merck Patent GmbHInventors: Michael Junge, Ewa Ptak, Christoph Wetzel
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Patent number: 11939511Abstract: The invention relates to a compound of formula I, wherein R11, R21, A11, A, Z, X11, X21, Y11, Y12, Sp11, Sp21, o and p have one of the meanings as given in claim 1. The invention further relates to method of production of a compound of formula I, to the use of said compounds in LC media and to LC media comprising one or more compounds of formula I. Further, the invention relates to a method of production of such LC media, to the use of such media in LC devices, and to LC device comprising a LC medium according to the present invention. The present invention further relates to a process for the fabrication such liquid crystal display and to the use of the liquid crystal mixtures according to the invention for the fabrication of such liquid crystal display.Type: GrantFiled: April 18, 2019Date of Patent: March 26, 2024Assignee: MERCK PATENT GMBHInventors: Lars Lietzau, Simon Siemianowski, Izumi Saito
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Patent number: 11932797Abstract: A liquid-crystalline medium which comprises at least one compound selected from the group of compounds of the formulae IA to IH, in which Z1 denotes a single bond, —CH2CH2—, —CH?CH—, —CH2O—, —OCH2—, —CF2O—, —OCF2—, —COO—, —OCO—, —C2F4—, —(CH2)4—, —CHFCHF—, —CF2CH2—, —CH2CF2—, —C?C—, —CF?CF—, —CH?CHCHO— or —CH2CF2O—, and the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PALC, FFS, PS-FFS, SA-VA, PS-IPS or IPS effect.Type: GrantFiled: January 29, 2021Date of Patent: March 19, 2024Assignee: MERCK PATENT GMBHInventors: Harald Hirschmann, Monika Bauer, Martina Windhorst, Marcus Reuter, Kristin Weiss
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Patent number: 11932799Abstract: Disclosed herein is a liquid crystal mixture applied in light modulating devices, comprising: component A comprised of one or more compounds selected from the group of compounds of formula (I), component B comprised of one or more compounds selected from the group of compounds of formula (II), and component C comprised of one or more chiral compounds. Also disclosed is a light modulating device containing the liquid crystal mixture, wherein the liquid crystal mixture has higher stability of electrical performance and the light modulating device has improved optical performance.Type: GrantFiled: August 5, 2020Date of Patent: March 19, 2024Assignee: Smart Liquid Crystal Technologies Co., Ltd.Inventors: Hongwei Zhang, Hui Xu, Li Zhang, Ximei Shen, Jianhua Tang
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Patent number: 11932796Abstract: Provided are a liquid crystal composition, a liquid crystal cured layer, an optical film, a polarizing plate, and an image display device, each of which suppresses streak defects and has excellent temporal stability. The liquid crystal composition includes a liquid crystal compound and a basic compound, in which a pKa of a conjugate acid of the basic compound is 4 to 10.Type: GrantFiled: August 11, 2022Date of Patent: March 19, 2024Assignee: FUJIFILM CorporationInventors: Toshikazu Sumi, Toshihiro Konishi, Chie Moriya
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Patent number: 11926697Abstract: The present invention provides a fluorine-containing liquid crystal polymer of Formula (1). The present invention also discloses a fluorine-containing liquid crystal elastomer, which comprises a copolymer of a fluorine-containing liquid crystal polymer of Formula (1) with a near-infrared dye of Formula (2). The fluorine-containing liquid crystal elastomer of the present invention shrinks due to the photothermal conversion effect of the material under the irradiation of near-infrared light, and thus is widely applicable to the field of actuators. The fluorine-containing liquid crystal polymer of the present invention introduces fluorine-containing segments into the cross-linked network of the liquid crystal polymer, to improve the mechanical performance of the material, and greatly extend the service time of light-controlled actuators.Type: GrantFiled: August 20, 2020Date of Patent: March 12, 2024Assignee: SOOCHOW UNIVERSITYInventors: Zhenping Cheng, Kai Tu, Enjie He, Jiannan Cheng, Lifen Zhang, Xiulin Zhu
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Patent number: 11920074Abstract: The present invention relates to a liquid crystal (LC) medium comprising a compound of formula I and one or more compounds selected from the group of compounds of the formulae IIA, IIB, IIC and IID, as defined in claim 1, and to the use of the LC medium for optical, electro-optical and electronic purposes, in particular in LC displays, especially in IPS, FFS, VA or PS-VA displays.Type: GrantFiled: December 16, 2020Date of Patent: March 5, 2024Assignee: MERCK PATENT GMBHInventors: Kaja Christina Deing, Sven Christian Laut, Monika Bauer, Sebastian Hofmeyer, Kristin Weiss
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Patent number: 11914293Abstract: 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: GrantFiled: January 26, 2018Date of Patent: February 27, 2024Assignee: Flint Group Germany GmbHInventors: Christian Pietsch, Armin Becker, Uwe Krauss, Thomas Telser
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Patent number: 11905417Abstract: 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: GrantFiled: June 1, 2021Date of Patent: February 20, 2024Assignee: Nippon Kayaku Kabushiki KaishaInventors: Kohei Ohtani, Hitomi Muto, Saori Suzuki, Takashi Yoshimoto
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Patent number: 11905448Abstract: 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: GrantFiled: October 20, 2022Date of Patent: February 20, 2024Assignee: MERCK PATENT GMBHInventors: Hye-Ryung Park, Eun-Kyu Lee, Yen-Kai Huang
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Patent number: 11884864Abstract: 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: GrantFiled: March 3, 2020Date of Patent: January 30, 2024Assignee: HONSHU CHEMICAL INDUSTRY CO., LTD.Inventors: Ryota Imai, Katsuhiko Kaneshige
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Patent number: 11886112Abstract: 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: GrantFiled: June 5, 2020Date of Patent: January 30, 2024Assignee: FUJIFILM CorporationInventor: Tokihiko Matsumura