Liquid Crystal Compositions Patents (Class 252/299.01)
  • Patent number: 11365353
    Abstract: A black liquid-crystal polymer film that contains a black pigment and a liquid crystal polymer and the black liquid-crystal polymer film has a lightness of 45 or less, a dielectric loss tangent of 0.0035 or less, a minimum dielectric breakdown strength of 60 kV/mm or more, and a maximum-to-minimum ratio of in-plane thermal linear expansion coefficient in the range of 1.0 to 2.5.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: June 21, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshimasa Nishi, Sunao Fukutake, Akira Moriya, Kanto Iida
  • Patent number: 11359143
    Abstract: Disclosed is a liquid crystal film for a vehicle, including a first electrode, a liquid crystal molecular layer provided on the first electrode, and a second electrode provided on the liquid crystal molecular layer. The liquid crystal molecular layer includes a pre-polymer, a liquid crystal material, and a crosslinking agent.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: June 14, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation, LIVICON
    Inventors: Moon Jung Eo, Young Jae Jeon
  • Patent number: 11359141
    Abstract: Polyfluorinated additives for use as components in liquid-crystal mixtures. Liquid-crystal mixtures which comprise these compounds. And liquid-crystal displays based on these liquid-crystal mixtures.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: June 14, 2022
    Assignee: MERCK PATENT GMBH
    Inventors: Peer Kirsch, Qiong Tong, Helga Haas, Kaja Christina Deing, Christoph Marten, Andreas Pohle, Reiner Friedrich
  • Patent number: 11344884
    Abstract: A microfluidic apparatus is provided. The microfluidic apparatus includes a first substrate; a microfluidic layer on the first substrate and defining a microfluidic channel, wherein the first substrate having a first side closer to the microfluidic layer, and a second side away from the microfluidic layer, the first side and the second side opposite each other; a plurality of detectors on a side of the microfluidic channel away from the first substrate; a unitary grating plate on the second side of the first substrate and including a plurality of grating blocks of different wavelength selectivity; and a light extraction layer including a plurality of light extractors on the first side of the first substrate and configured to extract light diffracted by the plurality of grating blocks out of the first substrate.
    Type: Grant
    Filed: May 5, 2019
    Date of Patent: May 31, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Xianqin Meng, Xiandong Meng, Fangzhou Wang, Wei Wang, Jifeng Tan, Jian Gao, Xiaochuan Chen
  • Patent number: 11339103
    Abstract: Processes for making bicyclic compounds and precursors thereof, and particularly for making [1.1.1]propellane and bicyclo[1.1.1]pentane and derivatives thereof, utilize continuous flow reaction methods and conditions. A continuous process for making [1.1.1]propellane can be conducted under reaction conditions that advantageously minimize clogging of a continuous flow reactor. A continuous flow process can be used to make precursors of [1.1.1]propellane.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: May 24, 2022
    Assignee: RECURIUM IP HOLDINGS, LLC
    Inventors: Joseph Robert Pinchman, Kevin Duane Bunker, Matthew M. Bio, Christopher Breen, Andrew M. Clausen, Yuanqing Fang, Hui Li, Jillian W. Sheeran
  • Patent number: 11332669
    Abstract: A polymerizable liquid crystal composition capable of manufacturing an optically anisotropic film having excellent light fastness; and an optically anisotropic film, an optical film, a polarizing plate, an image display device, and an organic electroluminescent display device, each of which uses the polymerizable liquid crystal composition. The polymerizable liquid crystal composition of an embodiment of the present invention contains a polymerizable liquid crystal compound having reverse-wavelength dispersion properties and an ultraviolet absorber represented by Formula (1), in which a maximum absorption wavelength A of the polymerizable liquid crystal compound and a maximum absorption wavelength B of the ultraviolet absorber satisfy Formula (2), and a content of the ultraviolet absorber is 1% to 20% by mass with respect to a content of the polymerizable liquid crystal compound.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: May 17, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Keita Takahashi, Mayumi Nojiri, Ayako Muramatsu
  • Patent number: 11294240
    Abstract: Diffractive optical structures, lenses, waveplates, devices, systems and methods, which have the same effect on light regardless of temperature within an operating temperature range. Temperature-compensated switchable diffractive waveplate systems, in which the diffraction efficiency can be maximized for the operating wavelength and temperature by means of adjustment of the electric potential across the liquid crystal or other anisotropic material in the diffracting state of the diffractive state, based on prior measurements of diffraction efficiency as a function of wavelength and temperature. The switchable diffractive waveplates can be a switchable diffractive waveplate diffuser, a switchable cycloidal diffractive waveplate, and a switchable diffractive waveplate lens. An electronic controller can apply an electric potential to the switchable diffractive waveplate.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: April 5, 2022
    Assignee: Beam Engineering for Advanced Measurements Co.
    Inventors: Nelson V. Tabirian, Justin L. Sigley, Zhi J. Liao, David E. Roberts
  • Patent number: 11287713
    Abstract: A switchable privacy display apparatus comprises a polarised output spatial light modulator, and an additional polariser. A reflective polariser, switchable liquid crystal polar control retarder, passive polar control retarders and air gap are arranged between the display output polariser and additional polariser. The passive retarders are arranged to provide no phase difference to polarised light from the spatial light modulator for on-axis light; and simultaneously provide a non-zero phase difference for polarised light in off-axis directions. The polar control retarders are further arranged to achieve low reflectivity for light propagating through the air gap. A switchable privacy display that can be conveniently assembled at low cost can be provided with high contrast images for display users while maintaining high visual security level for off-axis snoopers.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: March 29, 2022
    Assignee: RealD Spark, LLC
    Inventors: Graham J. Woodgate, Jonathan Harrold
  • Patent number: 11281064
    Abstract: Provided are a transmittance variable window that maximizes user convenience and a moving means including the same including a first substrate and a second substrate facing each other; a first electrode and a first alignment layer sequentially stacked on a surface of the first substrate, the surface facing the second substrate; a second electrode and a second alignment layer sequentially stacked on a surface of the second substrate, the surface facing the first substrate; a liquid crystal layer interposed between the first alignment layer and the second alignment layer; a first polarizing plate disposed on a surface of the first substrate, the surface facing away from the second substrate; and a second polarizing plate disposed on a surface of the second substrate, the surface facing away from the first substrate, wherein if a potential difference applied between the first electrode and the second electrode is V, considering an incidence light incident on any one of the first polarizing plate and the second p
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: March 22, 2022
    Assignee: NDIS CORPORATION
    Inventors: Soon Bum Kwon, Burm Young Lee, Hee Sang Yoo, Da Som Yoon
  • Patent number: 11261378
    Abstract: The present invention aims to provide a polymerizable compound that has high storage stability without causing crystal precipitation when added to a polymerizable composition and to provide a polymerizable composition containing the polymerizable compound. A polymer film produced by polymerization of the polymerizable composition has a low haze, high thickness uniformity, low occurrence of nonuniform orientation, high surface hardness, high adhesiveness, and good appearances and fewer orientation defects even after ultraviolet irradiation. The present invention also aims to provide a polymer produced by polymerization of the polymerizable composition and an optically anisotropic body produced from the polymer.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: March 1, 2022
    Assignee: DIC CORPORATION
    Inventors: Masahiro Horiguchi, Sayaka Nose, Akihiro Koiso
  • Patent number: 11247089
    Abstract: A drone that can pour a variety of chemical agents such as oxidizers, silica gelling agents, enzymes, and neutralizers onto areas contaminated with chemical and biological weapons of mass destruction. The use of a drone to destroy the chemical and biological weapons of mass destruction is highly beneficial since it allows the exposed toxic areas to be remotely decontaminated without the presence of humans.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: February 15, 2022
    Assignee: Robotic Research OpCo, LLC
    Inventors: Alberto Daniel Lacaze, Karl Nicholas Murphy, Radha Narayanan
  • Patent number: 11214683
    Abstract: A polymer composition that is capable of exhibiting a unique combination of ductility (e.g., tensile elongation at break), impact strength (e.g., Charpy notched impact strength), and dimensional stability is provided. For example, the polymer composition may contain a liquid crystalline polymer in combination with an epoxy-functionalized olefin copolymer and an inorganic particulate material.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: January 4, 2022
    Assignee: Ticona LLC
    Inventor: Young Shin Kim
  • Patent number: 11214737
    Abstract: Chiral polymer microspheres have a porous structure of a concentric multi-shell structure. Each layer of the multi-shell structure is optically and structurally anisotropic. The optical axes of adjacent layers have a sequential slight twist. All layers of the multi-shell structure generate a helix configuration and the chiral polymer microspheres are optically active. A method for preparing the chiral polymer microspheres, includes: forming a homogeneous liquid crystal mixture; dispersing the liquid crystal mixture into a continuous phase to form liquid crystal droplets through an emulsification process; polymerizing the reactive liquid crystal to form intermediate microspheres; and removing the one non-reactive liquid crystal and the chiral additive to form the chiral polymer microspheres. The chiral polymer microspheres have a porous structure and a swelling ability, and can be used as the stationary phase in chiral chromatograph, improving separation efficiency.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: January 4, 2022
    Assignee: Smart Liquid Crystal Technologies Co., Ltd.
    Inventors: Ang Li, Jiawei Lu, Nicholas L. Abbott
  • Patent number: 11208594
    Abstract: Liquid-crystalline media comprising one or more compounds of formula G and one or more compounds selected from the group of compounds of formulae I, II and III, in which the parameters have the meaning indicated in claim 1, and components comprising these media, are suitable for use in high-frequency technology, in particular, in phase shifters and microwave array antennas.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: December 28, 2021
    Assignee: Merck Patent GmbH
    Inventors: Michael Wittek, Constanze Brocke, Volker Reiffenrath
  • Patent number: 11193066
    Abstract: Provided are a polymerizable compound having at least one monovalent group (A), a polymerizable composition containing the polymerizable compound, a liquid crystal composite prepared from the polymerizable composition, and a liquid crystal device having the polymerizable composition. In monovalent group (A), R1 and R2 are independently hydrogen, halogen or alkyl having 1 to 20 carbons, and in the alkyl, at least one piece of —CH2— may be replaced by —O— or —S—, and at least one piece of —(CH2)2— may be replaced by —CH?CH—, and in the groups, at least one hydrogen may be replaced by halogen.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: December 7, 2021
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Tomohiro Yano, Fumitaka Kondo
  • Patent number: 11181741
    Abstract: A method to suppress a rainbow effect and an optical device thereof are provided. The method includes receiving, by a dimming element, a light from a real world. The method further includes attenuating, by the dimming element, an intensity of the light with a degree of attenuation growing with an incidence angle. The dimming element includes a liquid crystal (LC) dimming element.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: November 23, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Oleg Yaroshchuk, Barry David Silverstein, Alireza Moheghi
  • Patent number: 11174431
    Abstract: There are provided a liquid crystal composition containing one or two or more compounds represented by general formula (L) and three or four or more dichroic dyes selected from azo compounds, and a guest-host liquid crystal display device or light-controlling device that uses the liquid crystal composition. The liquid crystal composition according to the present invention contains dichroic dyes that satisfy high contrast, high solubility, high nematic-isotropic transition temperature (TNI), and low birefringent anisotropy (?n) effective for high light resistance and high thermal resistance at the same time. The use of the liquid crystal composition according to the present invention provides a liquid crystal display device or a light-controlling device that exhibits a good-looking black color and has high contrast, high display quality, and high practicality.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: November 16, 2021
    Assignee: DIC CORPORATION
    Inventors: Haruki Ohishi, Tsuyoshi Sasaki
  • Patent number: 11174217
    Abstract: A compound represented by formula (i) has, as Ki1 in the formula (i), a structure represented by any one of formula (K-1) to formula (K-3). When used in a liquid crystal composition, it adheres to substrates which hold the liquid crystal composition (liquid crystal layer) therebetween, thereby permitting liquid crystal molecules to be maintained in the state of being aligned in the vertical direction. The liquid crystal composition using the compound enables liquid crystal molecules to be aligned even when the PI layer is not provided (vertical alignment of liquid crystal molecules is induced without the voltage applied and horizontal alignment of liquid crystal molecules is realized with the voltage applied). It is possible to provide a polymerizable compound being excellent in storability and capable of uniform vertical alignment of liquid crystal molecules with no PI layer provided.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: November 16, 2021
    Assignee: DIC CORPORATION
    Inventors: Ayaki Hosono, Masanao Hayashi
  • Patent number: 11168257
    Abstract: The present invention relates to liquid crystalline media comprising one or more benzothiadiazol derivatives of formula I, in which R11, R12, A11, A12, A21, A22, Z11, Z12, Z21, Z22, W, X11, X12, r and s have the meanings indicated in claim 1, to the use of such liquid crystal media for optical, electro-optical and electronic purposes, in particular in devices for regulating the passage of energy from an outside space into an inside space, for example in windows.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: November 9, 2021
    Assignee: Merck Patent GmbH
    Inventors: Peer Kirsch, Andreas Ruhl, Michael Junge, Ursula Patwal, Mila Fischer
  • Patent number: 11168254
    Abstract: The present invention is a liquid crystal display device including a liquid crystal layer containing a liquid crystal material, a sealing member surrounding the liquid crystal layer in a plan view, a pair of substrates sandwiching the liquid crystal layer, and an alignment control layer being in contact with the liquid crystal layer in a region surrounded by the sealing member in a plan view. The alignment control layer aligns a liquid crystal compound in the liquid crystal material in a direction horizontal to faces of the substrates, and contains a polymer formed by polymerization of at least one monomer, and the at least one monomer contains a monomer represented by the following Chemical formula (1): wherein at least one hydrogen atom of the phenylene group may be the same or different and may be substituted with a halogen atom, a methyl group, an ethyl group, or a propyl group.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: November 9, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masanobu Mizusaki, Tomonori Itoh
  • Patent number: 11160739
    Abstract: The present disclosure relates compositions and methods for altering the color of the hair, the compositions comprising at least one amino acid, at least one carboxylic acid, optionally at least one amine, and at least one hair coloring agent.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: November 2, 2021
    Assignee: L'OREAL
    Inventors: Minli Shi, Mohamad Amer Alkahwaji, Leslie A. Warner, Sarah Barrie Machover, Kimberly Christine Bogart Dreher
  • Patent number: 11150392
    Abstract: An optical element 1 includes a first layer (A1) and a second layer (A2) that faces the first layer (A1). The first layer (A1) includes a plurality of first structural bodies (B1) that each have optical anisotropy. In reflection of light entering from the first layer (A1), the second layer (A2) reflects the light while maintaining a polarization state of the light at incidence and at the reflection. The first layer (A1) changes, according to directions of orientation of the first structural bodies (B1), a phase of the light from a phase at incidence to the first layer (A1) from outside of the first layer (A1) to a phase at output from the first layer (A1) toward the second layer (A2). The first layer (A1) changes the phase of the light from a phase at incidence to the first layer (A1) from the second layer (A2) to a phase at output from the first layer (A1) toward the outside of the first layer (A1) according to the directions of orientation of the first structural bodies (B1).
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: October 19, 2021
    Assignee: OSAKA UNIVERSITY
    Inventor: Hiroyuki Yoshida
  • Patent number: 11152595
    Abstract: A method for manufacturing a display device including providing a protection resin having a base resin, a first initiator, and a second initiator to the non-display area, irradiating light having a first wavelength region to the protection resin to form a preliminary protection layer, bending the flexible substrate so that the bending part has a first curvature radius, and additionally curing the preliminary protection layer to form a protection layer.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: October 19, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myoung-ha Jeon, Jinho Kim, Hyeonjeong Oh, Kichang Lee
  • Patent number: 11109014
    Abstract: A privacy display comprises a liquid crystal spatial light modulator, a switchable retarder and a passive compensation retarder arranged between a pair of polarisers. In a privacy mode of operation, on-axis light from the spatial light modulator is directed without change of image contrast, whereas off-axis light has reduced contrast to reduce the visibility of the display to off-axis snoopers over a wide polar angular range. In a wide angle mode of operation, the retardance of the switchable retarder is adjusted so that off-axis contrast is substantially unmodified.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: August 31, 2021
    Assignee: RealD Spark, LLC
    Inventors: Michael G. Robinson, Graham J. Woodgate, Jonathan Harrold, Robert A Ramsey, Ben Ihas
  • Patent number: 11078421
    Abstract: Provided are a polymerizable composition of a polymerizable compound represented by formula I and a polymerizable compound represented by formula II, a liquid crystal composition formed by combining this polymerizable composition with a specific liquid crystal component, particularly a PSVA liquid crystal composition suitable for display or TV applications, and a PSA-IPS liquid crystal composition for an IPS mode; in particular, the polymerizable liquid crystal composition has a good solubility, and an adjustable rate of polymerization and morphology after polymerization; furthermore, a “material system” formed from the selected polymerizable component and liquid crystal component has a low rotary viscosity and good photoelectric properties, and has a high VHR after (UV) photoradiation, this avoiding the problems of the occurrence of afterimages in final displays, etc.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: August 3, 2021
    Assignee: SHIJIAZHUANG CHENGZHI YOUNGHUA DISPLAY MATERIAL CO., LTD.
    Inventors: Ruixiang Liang, Wenxiao Xing, Gang Wen, Hongru Gao, Xuanfei Sun, Yapeng Huang, Xiaoming Xiong, Junhong Su
  • Patent number: 11077417
    Abstract: Disclosed herein are microcapsules as core-shell-particles, including a polymeric shell, a method of making them, a dispersion of those microcapsules in a liquid medium and use thereof. The microcapsules include a core that contains a hydrophobic component.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: August 3, 2021
    Assignee: BASF SE
    Inventors: Yannick Fuchs, Helmut Witteler, Matthias Bratz
  • Patent number: 11079622
    Abstract: A display panel includes: a transparent display substrate; an opposite substrate disposed opposite to the transparent display substrate; and a light adjusting layer disposed between the transparent display substrate and the opposite substrate. The light adjusting layer is configured in a way that, under action of an electric field, at least a part of the light adjusting layer transmits light or at least a part of the light adjusting layer reflects light.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: August 3, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Haiyan Sun, Hao Miao, Rui Li, Pengju Zhang, Hong Zhu, Mingxing Liu
  • Patent number: 11079634
    Abstract: The present invention provides a liquid crystal display device that can sufficiently prevent crystallization of a liquid crystal material at low temperatures, and thereby has high response performance suitable for applications such as HMDs. The liquid crystal display device includes: paired substrates; a liquid crystal layer held between the substrates; and a photo-alignment film disposed on a surface facing the liquid crystal layer of at least one of the substrates, the liquid crystal layer containing a liquid crystal material that has a nematic-isotropic phase transition temperature of 75° C. or lower and a nematic phase temperature range narrower than 100° C., the photo-alignment film containing a polymer, the polymer and/or another component of the photo-alignment film containing a hydrophobic group.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: August 3, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masanobu Mizusaki, Hiroshi Tsuchiya
  • Patent number: 11046826
    Abstract: The invention includes methods of reversibly tuning the effective pore size and/or solute rejection selectivity of a nanoporous lyotropic liquid crystal (LLC) polymer membrane. The membranes of the invention have high levels of pore size uniformity, allowing for size discrimination separation, and may be used for separation processes such as liquid-phase separations.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: June 29, 2021
    Assignee: The Regents of the University of Colorado
    Inventors: Douglas L. Gin, Richard D. Noble, Sarah Marie Dischinger, Blaine M. Carter
  • Patent number: 11036068
    Abstract: The present disclosure is related to a non-volatile thermotropic composite material comprising a first component comprising a non-aqueous and non-volatile proton donating material; a second component comprising a monomer, an oligomer or a polymer as a proton accepting material; a non-volatile polymeric matrix; and wherein the non-volatile polymeric matric, the first component and the second component are configured to maintain at least one property which is reversibly changeable based on thermal energy received by or given out from the non-volatile thermotropic composite material. Proton donating materials include ionic liquid, poly(ionic liquid) and deep eutectic salt. The proton accepting material comprises at least an ether, a phenyl ester, an amide and an acrylate functional group.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: June 15, 2021
    Assignee: Nanyang Technological University
    Inventors: Xiao Hu, Heng Yeong Lee, Yufeng Cai
  • Patent number: 11035818
    Abstract: A blood glucose meter with a low cost user interface has a color glucose scale that is indexed by indicators programmed according to the user's blood glucose target range through a separating computing device due to the limited meter user interface. The color glucose scale is static and placed adjacent to the indicator such as by being molded into the housing, printed on the housing, or attached to the display. The low cost user interface has a monochrome segmented display with certain segments serving as a plurality of indicators. An indicator scaling module uses the target blood glucose range of the person with diabetes to calculate the blood glucose ranges for each indictor to index the color glucose measurement scale. The indicator scaling module can also assign attributes to the indicator such as flashing. The graphic representation of the user's blood glucose measurement aids in user interpretation.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: June 15, 2021
    Assignee: ROCHE DIABETES CARE, INC.
    Inventor: Mark G. Mears
  • Patent number: 11016223
    Abstract: A hardcoat film has a support, a first cured layer, and a second cured layer in this order in which the first cured layer is formed of a curable composition for forming a first cured layer containing a polymerizable compound 1 having a radically polymerizable group and a polymerizable compound 2 having a cationically polymerizable group and a radically polymerizable group, the second cured layer is formed of a curable composition for forming a second cured layer containing a polymerizable compound 3 having at least two radically polymerizable groups, and a content of the polymerizable compound 2 with respect to a total content of the polymerizable compounds contained in the curable composition for forming a first cured layer is equal to or greater than 51% by mass.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: May 25, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Keigo Ueki, Katsuyuki Takada
  • Patent number: 11015123
    Abstract: The present application relates to a liquid-crystalline material comprising a sterically hindered N-oxide and a dye. The invention furthermore relates to the use of the liquid-crystalline material in an optical switching device for regulation of the passage of sunlight.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: May 25, 2021
    Assignee: MERCK PATENT GMBH
    Inventors: Michael Junge, Ursula Patwal, Ewa Dominica Ptak
  • Patent number: 11015121
    Abstract: The present invention relates to liquid-crystalline media (LC media) having negative or positive dielectric anisotropy comprising self-aligning mesogens (SAMs) which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The invention therefore also encompasses LC displays having homeotropic alignment of the liquid-crystalline medium (LC medium) without conventional imide alignment layers. The LC media may be supplemented by a polymerisable or polymerised component, which serves for stabilisation of the alignment, for adjustment of the tilt angle and/or as passivation layer.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: May 25, 2021
    Assignee: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Archetti Graziano, Andreas Taugerbeck
  • Patent number: 11008515
    Abstract: 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: Grant
    Filed: November 20, 2018
    Date of Patent: May 18, 2021
    Assignee: Merck Patent GmbH
    Inventors: Harald Hirschmann, Monika Bauer, Martina Windhorst, Marcus Reuter, Kristin Weiss
  • Patent number: 11001708
    Abstract: This liquid crystal polyester resin composition includes a liquid crystal polyester resin and a filler composed of a fibrous filler and a plate-like filler, in which the amount of the filler is at least 15 parts by mass but not more than 55 parts by mass per 100 parts by mass of the liquid crystal polyester resin, and the number average fiber length of the fibrous filler is at least 450 ?m but not more than 700 ?m.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: May 11, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Tomoyuki Hara
  • Patent number: 10995272
    Abstract: The present invention relates to a pellet mixture including a pellet of a liquid crystal polyester resin composition which contains a liquid crystal polyester resin and an inorganic filler, and a fine powder formed of an organic material, in which a volume average particle diameter of the fine powder is in a range of 10 ?m to 200 ?m, and an amount of the fine powder is in a range of 10 ppm to 2000 ppm with respect to the total mass of the pellet mixture.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: May 4, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Tomoyuki Hara, Takayuki Sugiyama
  • Patent number: 10982149
    Abstract: Chiral compounds of formula I wherein the paramters have the meaning given in claim 1, liquid crystal mixtures comprising at least one chiral compound of formula I, to chiral linear or crosslinked liquid crystal polymers obtainable by polymerizing a polymerizable mixture comprising at least one chiral compound of formula I, to the use of chiral compound of formula I and mixtures and polymers obtained thereof in liquid crystal displays, active and passive optical elements, adhesives, synthetic resins with anisotropic mechanical properties, cosmetic and pharmaceutical compositions, diagnostics, liquid crystal pigments, for decorative and security applications, nonlinear optics, optical information storage or as chiral dopants, and a liquid crystal display comprising a mixture comprising at least one chiral compound of formula I.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: April 20, 2021
    Assignee: Merck Patent GmbH
    Inventors: Matthias Bremer, Edward Plummer, Thomas Eichhorn, Peter Schreiner, Christian Kuehn
  • Patent number: 10982150
    Abstract: The present invention relates to liquid crystalline media comprising one or more naphthothiadiazol derivatives of formula I, in which R11, R12, A11, A12, A21, A22, Z11, Z12, Z21, Z22, W, X11, X12, L, r, s and t have the meanings indicated in claim 1, to the use of such liquid crystal media for optical, electro-optical and electronic purposes, in particular in devices for regulating the passage of energy from an outside space into an inside space, for example in windows.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: April 20, 2021
    Assignee: Merck Patent GmbH
    Inventors: Peer Kirsch, Rene Lutz, Michael Junge, Ursula Patwal
  • Patent number: 10975304
    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: April 13, 2021
    Assignee: DIC CORPORATION
    Inventors: Kazuki Kurisawa, Haruki Ohishi
  • Patent number: 10955715
    Abstract: A switchable privacy display apparatus comprises a polarised output spatial light modulator, and an additional polariser. A reflective polariser, switchable liquid crystal polar control retarder, passive polar control retarders and air gap are arranged between the display output polariser and additional polariser. The passive retarders are arranged to provide no phase difference to polarised light from the spatial light modulator for on-axis light; and simultaneously provide a non-zero phase difference for polarised light in off-axis directions. The polar control retarders are further arranged to achieve low reflectivity for light propagating through the air gap. A switchable privacy display that can be conveniently assembled at low cost can be provided with high contrast images for display users while maintaining high visual security level for off-axis snoopers.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: March 23, 2021
    Assignee: RealD Spark, LLC
    Inventors: Graham J. Woodgate, Jonathan Harrold
  • Patent number: 10946615
    Abstract: An object of the invention is to provide a coloring composition which can form a light absorption anisotropic film having an excellent dichroic ratio, a dichroic dye compound, a light absorption anisotropic film, a laminate, and an image display device. A coloring composition according to the invention contains a dichroic dye compound which has a Hansen solubility parameter of 17.5 or greater and has a structure represented by Formula (1), and a liquid crystalline compound. L1-A1-N?N-A2-N?N-A3-L2??(1) in Formula (1), A1, A2, and A3 each independently represent a divalent aromatic group which may have a substituent. Any one of A1, A2, and A3 represents a divalent thienothiazole group which may have a substituent. In Formula (1), L1 and L2 each independently represent a substituent.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: March 16, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Masatoshi Mizumura, Takashi Katou, Wataru Hoshino
  • Patent number: 10907099
    Abstract: An object of the present invention is to provide a compound (particularly, a liquid crystal compound having excellent light fastness) which has excellent light fastness and can be used for an optically anisotropic body, a reflective film obtained by immobilizing a cholesteric liquid crystalline phase, or the like. Another object of the present invention is to provide a composition containing the above-mentioned compound (particularly, a liquid crystal compound having excellent light fastness); and a cured object, an optically anisotropic body, and a reflective film, which are obtained by curing the above-mentioned composition. The compound of the present invention is represented by General Formula (1).
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: February 2, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Yuki Fukushima, Ryoji Goto
  • Patent number: 10894918
    Abstract: The present invention relates to a liquid crystal (LC) medium comprising polymerisable compounds, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, and to LC displays comprising it.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: January 19, 2021
    Assignee: Merck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Nils Greinert, Matthias Bremer, Konstantin Schneider, Christian Schoenefeld, Thomas Bauer
  • Patent number: 10890701
    Abstract: The present invention is to provide a laminate that includes a polarizer and a photo alignment film and is excellent in the moisture-heat resistance of the polarizer, a method of producing a laminate, a polarizing plate, a liquid crystal display device, and an organic EL display device including the laminate. The laminate of the present invention includes a polarizer, and a photo alignment film that is adjacently arranged on the polarizer, the photo alignment film is a layer formed by bringing a composition for forming a photo alignment film into direct contact with a surface of the polarizer, and the composition for forming a photo alignment film contains Compound A having a photo-aligned group and Compound B having a crosslinking group, or Compound C having a photo-aligned group and a crosslinking group.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: January 12, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Masataka Yoshizawa, Akira Yamamoto
  • Patent number: 10882966
    Abstract: The present invention relates to a liquid (meth)acrylic syrup for impregnating a fibrous substrate; a viscous liquid syrup mainly containing methacrylic or acrylic components, and preferably hollow beads; to a process for manufacturing such a syrup; to a process for impregnating a fibrous substrate or long fibers with said viscous liquid syrup; to a fibrous substrate preimpregnated with said syrup, which is useful for manufacturing mechanical or structured parts or products; to a manufacturing process for manufacturing mechanical or structured parts or articles; and to three-dimensional mechanical or structured parts obtained by this process. The invention makes it possible to significantly reduce the exothermic peak during the polymerization of the syrup, to reduce the residual content of monomer at the end of polymerization, and to obtain parts made of composite material that have few or no defects.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: January 5, 2021
    Assignee: Arkema France
    Inventor: Pierre Gerard
  • Patent number: 10881593
    Abstract: The present invention relates to benefit agent containing delivery particles, compositions comprising said particles, and processes for making and using the aforementioned particles and compositions. When employed in compositions, for example, cleaning or fabric care compositions, such particles increase the efficiency of benefit agent delivery, thereby allowing reduced amounts of benefit agents to be employed. In addition to allowing the amount of benefit agent to be reduced, such particles allow a broad range of benefit agents to be employed.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: January 5, 2021
    Assignee: The Procter & Gamble Company
    Inventors: Johan Smets, An Pintens, Laura Orlandini, Sandra Jacqueline Guinebretiere, Peggy Dorothy Sands
  • Patent number: 10883047
    Abstract: The invention relates to a liquid-crystalline medium, preferably having a nematic phase and dielectric anisotropy of 0.5 or more, which comprises one or more compounds of formula Y in which the parameters have the meanings 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 Y for the improvement of the transmission and/or response times of a liquid-crystalline medium which comprises one or more additional mesogenic compounds.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: January 5, 2021
    Assignee: MERCK PATENT GMBH
    Inventor: Atsutaka Manabe
  • Patent number: 10882995
    Abstract: Disclosed is an azo compound represented by Formula (I), in which R1 is hydrogen or methyl, R2 is hydrogen or methyl, and R3 is hydrogen, an unsubstituted linear alkyl group of from 1 to 4 carbon atoms, or an unsubstituted branched alkyl group of from 1 to 4 carbon atoms. This disclosure also provides a black dye composition including the azo compound represented by Formula (I).
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: January 5, 2021
    Assignee: National Chi Nan University
    Inventors: Long-Li Lai, Yao-Chih Lu, Cheng-Hua Lee
  • Patent number: 10875833
    Abstract: The present invention relates to compounds represented by the following Formula (I). With reference to Formula (I), at least one of E1 and E2 independently is, or is independently substituted with, at least one reactive group, such as a (meth)acryloyl group. The compounds of the present invention can be used alone and/or in combination with polymers prepared from such compounds, such as to form or as one or more components of an alignment layer.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: December 29, 2020
    Assignee: Transitions Optical, Inc.
    Inventors: Anil Kumar, Ryan Stayshich, Meng He, Gobinda Saha