Liquid Crystal Compositions Patents (Class 252/299.01)
  • Patent number: 11822159
    Abstract: Onboard EC window controllers are described. The controllers are configured in close proximity to the EC window, for example, within the IGU. The controller may be part of a window assembly, which includes an IGU having one or more EC panes, and thus does not have to be matched with the EC window, and installed, in the field. The window controllers described herein have a number of advantages because they are matched to the IGU containing one or more EC devices and their proximity to the EC panes of the window overcomes a number of problems associated with conventional controller configurations. Also described are self-meshing networks for electrochromic windows.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: November 21, 2023
    Assignee: View, Inc.
    Inventors: Stephen C. Brown, Dhairya Shrivastava, Erich R. Klawuhn, Trevor Frank, Douglas S. Silkwood
  • Patent number: 11803213
    Abstract: An e-book reader in which destruction of a driver circuit at the time when a flexible panel is handled is inhibited. In addition, an e-book reader having a simplified structure. A plurality of flexible display panels each including a display portion in which display control is performed by a scan line driver circuit and a signal line driver circuit, and a binding portion fastening the plurality of display panels together are included. The signal line driver circuit is provided inside the binding portion, and the scan line driver circuit is provided at the edge of the display panel in a direction perpendicular to the binding portion.
    Type: Grant
    Filed: November 23, 2022
    Date of Patent: October 31, 2023
    Inventors: Shunpei Yamazaki, Jun Koyama, Yasuyuki Arai, Ikuko Kawamata, Atsushi Miyaguchi, Yoshitaka Moriya
  • Patent number: 11732192
    Abstract: A liquid crystal composition contains a side chain type polymer liquid crystalline compound which can form a light absorption anisotropic film having a high alignment degree and has excellent solubility in a general-purpose solvent, a light absorption anisotropic film obtained using the composition, a laminate, and an image display device. The composition includes: a side chain type polymer liquid crystalline compound; and a dichroic substance, in which the compound is a copolymer having a repeating unit (1) containing a mesogenic group with a molecular weight of greater than 280 and a repeating unit (2) with a molecular weight of 280 or less, a content of the repeating unit (2) is less than 14% by mass with respect to a total mass of the compound, and a content of the dichroic substance is greater than 2% by mass with respect to a total solid content of the composition.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: August 22, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Hiroshi Matsuyama, Wataru Hoshino, Teruki Niori
  • Patent number: 11726242
    Abstract: An optical element, e.g. based on a diffractive Fresnel lens, having suppressed or reduced chromatic aberration under non-monochromatic light and/or enhanced directional homogenisation in its angular irradiation characteristics, comprises a plurality of optical zones (10, 20), wherein each zone comprises at least one homogenising noise-introducing feature. In embodiments the at least one homogenising noise-introducing feature comprises one or more zonal displacement features, e.g. ripples (20?, 20?) and/or one or more zonal modulation features, e.g. one or more patterning features (30).
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: August 15, 2023
    Assignee: IQS GROUP s.r.o.
    Inventor: Tomas Behounek
  • Patent number: 11680207
    Abstract: Mesogenic compounds having a structure of Formula (I), (II) or (III): where A, B, X1, L, TG, m, and n are defined as in claim 1. Compositions containing these compounds, articles made from these polymerized and prepolymerized compositions, and methods of estimating the elastic constants and anchoring constants of a liquid crystal materials and mapping topological defect structures in liquid crystals using these compounds.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: June 20, 2023
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: Shu Yang, Yu Xia, Francesca Serra, Randall D. Kamien, Kathleen J. Stebe
  • Patent number: 11505744
    Abstract: A polymer liquid crystal compound with which a light absorption anisotropic film having a high alignment degree can be formed, a liquid crystalline composition, a light absorption anisotropic film which is formed of the liquid crystalline composition, a laminate, and an image display device. The liquid crystalline composition includes a polymer liquid crystal compound which contains a repeating unit represented by Formula (1) and a dichroic substance. In Formula (1), a difference between a log P value of P1, L1, and SP1 and a log P value of M1 is 4 or greater. In Formula (1), P1 represents a main chain of the repeating unit, L1 represents a single bond or a divalent linking group, SP1 represents a spacer group, M1 represents a mesogenic group, and T1 represents a terminal group.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: November 22, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Hiroshi Matsuyama, Wataru Hoshino, Teruki Niori, Naoya Nishimura
  • Patent number: 11487152
    Abstract: The present invention provides a laminate and an image display device, in which alignment defects of a liquid crystal layer provided on an optical alignment layer are suppressed. The laminate includes an optical alignment layer and a liquid crystal layer provided on the optical alignment layer. In the laminate, the liquid crystal layer is formed from a liquid crystal composition containing a liquid crystal compound and a surfactant, and the liquid crystal compound is immobilized in a horizontal alignment state, and the surfactant is a copolymer having a repeating unit containing a fluorinated alkyl group and having a repeating unit containing a mesogenic group.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: November 1, 2022
    Assignee: FUJIFILM Corporation
    Inventor: Wataru Hoshino
  • Patent number: 11445605
    Abstract: A printed wiring board and the like in which local deviations of characteristics of a bamse member using a liquid crystal polymer are reduced. A printed wiring board uses a liquid crystal polymer having wiring formed on at least one surface as a bamse member, in which the bamse member has a degree of crystal orientation of the liquid crystal polymer of 0.3 or less in a plane direction.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: September 13, 2022
    Assignee: TDK CORPORATION
    Inventors: Takaaki Morita, Seiko Komatsu, Seiichi Tajima, Wakiko Sato
  • Patent number: 11422404
    Abstract: The display device is mounted on a vehicle and includes a display, a reflectance control part, and a control circuit. The display includes a display surface on which a video is displayed, and is able to switch between on and off. The reflectance control part is positioned close to the display surface and is able to change a reflectance of incident light. The control circuit is configured to control a reflectance of the reflectance control part, the on and off of the display, and the video. The display surface is subjected to low reflection processing for reducing a reflectance of light.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: August 23, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Koji Marumo, Hideki Morinaga
  • Patent number: 11407716
    Abstract: The present invention relates to acridine compound of formula structure (I), and to an electron transport layer, which comprises at least one compound of formula (I), an semiconductor layer comprising at least one compound of formula (I) as well as to an electronic device comprising a semiconductor layer thereof.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: August 9, 2022
    Assignee: Novaled GmbH
    Inventors: Francois Cardinali, Benjamin Schulze, Jerome Ganier, Domagoj Pavicic, Volodymyr Senkovskyy
  • Patent number: 11391526
    Abstract: The present invention brings about an increase in the thermal conductivity of an elastomer molded article over a preexisting value. The method according to the present invention is a method that uses at least one of a liquid crystalline polymer and a precursor therefor as a thermal conductivity modifier for an elastomer. That is, the thermal conductivity modifier for an elastomer according to the present invention contains at least one of a liquid crystalline polymer and a precursor therefor. The thermal conductivity modifier may contain only at least one of a liquid crystalline polymer and a precursor therefor or may contain at least one of a liquid crystalline polymer and a precursor therefor along with an additional component. The method and thermal conductivity modifier according to the present invention can bring about an increase in the thermal conductivity of an elastomer molded article over a preexisting value.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: July 19, 2022
    Assignee: I.S.T CORPORATION
    Inventors: Shunsuke Hirata, Yoji Tani
  • 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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