Including Heterocyclic Ring Patents (Class 252/299.61)
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Patent number: 12203024Abstract: A liquid crystal composition, which is a material used for an element for electromagnetic wave signal control in a frequency range of 1 GHz to 10 THz, satisfies at least one of characteristics such as a wide temperature range of a nematic phase and a large refractive index anisotropy and a small dielectric loss tangent (tan ?) in the frequency region used for control, and has an excellent balance of characteristics, and an element containing the composition. A liquid crystal composition including: at least one compound selected from the group consisting of compounds represented by Formula (1). For example, R1 is C1-12 alkyl; Z11 is a single bond; L11, L12, L13 and L18 are hydrogen; L17 is methyl; Y11 and Y22 are hydrogen; and a, b, and c are respectively 0, 1, and 0.Type: GrantFiled: February 10, 2023Date of Patent: January 21, 2025Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Eiji Okabe, Takanori Mori, Kazushi Shiren, Yuko Katano
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Band edge emission enhanced organic light emitting diode utilizing chiral liquid crystalline emitter
Patent number: 12207551Abstract: Disclosed herein is a light emitting device and method of manufacturing such a device comprised of a series of photopolymerizable, chiral liquid crystalline layers that can be solvent cast on a substrate. The mixture of chiral materials in each successive layer may be blended in such a way that each layer has the same chiral pitch. Further the chiral materials in each layer may also be blended so that the ordinary and extraordinary refractive indices in each layer match the other layers such that the complete assembly of layers will optically function as a single relatively thick layer of chiral liquid crystal. The chiral nematic material in each layer can spontaneously adopt a helical structure with a helical pitch. The light emitting layers of the light emitting device can further comprise electroluminescent material that emits light into the band edge light propagation modes of the photonic crystal.Type: GrantFiled: May 10, 2022Date of Patent: January 21, 2025Assignee: Red Bank Technologies LLCInventors: Gene C. Koch, John N. Magno -
Patent number: 12187944Abstract: A liquid-crystal (LC) medium which is based on a mixture of polar compounds and is substantially dielectrically neutral, its use for optical, electro-optical and electronic purposes, in particular as optical retarder or optical compensator in LC displays, an optical retarder or optical compensator containing the LC medium, an optical, electrooptical or electronic device containing the optical retarder or optical compensator, and a process of manufacturing the optical retarder or optical compensator.Type: GrantFiled: May 23, 2023Date of Patent: January 7, 2025Assignee: Merck Patent GmbHInventors: Sven Christian Laut, Tzu-Huan Tseng, Kuang-Ting Chou, Chi-Shun Huang
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Patent number: 12193328Abstract: The present invention relates to a compounds of formula I R1-(A1-Z1)r—B1—ZL-A2-(Z3-A3)s-G??(I) in which the occurring groups and parameters have the meanings given in claim 1, to the use thereof for the formation of molecular layers, in particular self assembled monolayers, to a process for the fabrication of a switching element for memristive devices comprising said molecular layers and to a memristic device comprising said switching element.Type: GrantFiled: May 8, 2020Date of Patent: January 7, 2025Assignee: MERCK PATENT GMBHInventors: Peer Kirsch, Sebastian Resch, Henning Seim
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Patent number: 12163081Abstract: A liquid-crystal (LC) medium based on a mixture of polar compounds, its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the vertically aligned mode, to an LC display of the vertically aligned mode containing the LC medium, especially an energy-saving LC display and a process of manufacturing the LC display.Type: GrantFiled: June 1, 2023Date of Patent: December 10, 2024Assignee: MERCK PATENT GMBHInventors: Harald Hirschmann, Sabine Schoen, Philipp Wucher
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Patent number: 12116521Abstract: The present invention relates to a liquid crystal (LC) medium comprising a compound of formula I and one or more compounds of formula II as defined in claim 1, and to the use thereof for optical, electro-optical and electronic purposes, in particular in LC displays, especially in IPS, FFS, VA or PS-VA displays.Type: GrantFiled: June 30, 2021Date of Patent: October 15, 2024Assignee: MERCK PATENT GMBHInventor: Sven Christian Laut
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Patent number: 12043783Abstract: A liquid crystal composition containing a benzochromene compound and the use thereof in a liquid crystal display element or liquid crystal display. The liquid crystal composition comprises one or more compounds represented by Formula I and one or more compounds represented by Formula II. The liquid crystal composition has the characteristics of a small rotational viscosity, a large elastic constant, a high transmittance, a fast response speed, a strong resistance to ultraviolet light irradiation, and a high long-time light stability, and is particularly suitable for the field of TV display.Type: GrantFiled: November 17, 2022Date of Patent: July 23, 2024Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Xiaolong Wang, Qing Cui, Yunxia Qiao, Yan Wang, Shuai Zhao, Hao Liu
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Patent number: 12031078Abstract: The present invention relates to a switching layer based on a liquid-crystalline mixture for use in an optical switching element. The invention also encompasses a switching element comprising the switching layer and a window element containing the switching element. The liquid crystalline mixture comprises a low-molecular liquid crystal component, a polymer component and a self-alignment additive for vertical alignment.Type: GrantFiled: July 17, 2017Date of Patent: July 9, 2024Assignee: MERCK PATENT GMBHInventors: Dong-Mee Song, Jung-Min Lee, Yong-Hyun Choi, Yong-Kuk Yun
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Patent number: 12024664Abstract: The present invention belongs to the technical field of liquid crystal materials, and in particular relates to a liquid crystal composition with good frequency dependence and a liquid crystal display element or liquid crystal display containing the liquid crystal composition. The liquid crystal composition of the present invention comprises a compound represented by Formula I, a compound represented by Formula II and a compound represented by Formula III, wherein the mass percentage content of the compound represented by Formula I is not less than 30%. The liquid crystal composition provided by the present invention has an appropriate optical anisotropy, an appropriate dielectric anisotropy, especially a relatively low rotational viscosity, a good low-temperature mutual solubility and a good reliability, especially good frequency dependence.Type: GrantFiled: December 12, 2022Date of Patent: July 2, 2024Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Hongru Gao, Wenxiao Xing, Meida Pan, Qing Cui, Gang Wen, Jikai Li
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Patent number: 12019334Abstract: A liquid crystal display device prevents light leakage in a black display of a projected image when a light source reaches a higher temperature, and displays a high-quality image without any lost sense of reality. The device includes a light-transmissive liquid crystal display element including two glass substrates and a liquid crystal layer sealed between the glass substrates, a backlight device that emits light toward one glass substrate in the liquid crystal display element, an emission-light polarizing plate on the other glass substrate, an incident-light polarizing plate on the one glass substrate, and a polarizer being a plate and including a base layer including a glass substrate and a metal layer stacked on the base layer and having a polarization function. The polarizer is located with the base layer facing the incident-light polarizing plate. The base layer is thicker than each of the glass substrates.Type: GrantFiled: April 6, 2021Date of Patent: June 25, 2024Assignee: Kyocera CorporationInventors: Kenta Kamoshida, Ryo Tadauchi, Takashi Shimada, Kenji Ogura, Mitsuhiro Murata
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Patent number: 12006462Abstract: The present invention belongs to the technical field of liquid crystal materials, and in particular relates to a liquid crystal composition and a liquid crystal display element or liquid crystal display containing the liquid crystal composition. The present invention discloses a liquid crystal composition, comprising one or more compounds represented by Formula I, one or more compounds represented by Formula II, and one or more compounds represented by Formula III. The liquid crystal composition of the present invention has a large optical anisotropy and a small ratio of ?1/K11, and can be used for developing a liquid crystal display element or liquid crystal display with a low cell thickness and a fast response.Type: GrantFiled: August 25, 2020Date of Patent: June 11, 2024Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Sumin Kang, Zhian Liang, Kui Wang, Guoliang Yun, Wei Zhang
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Patent number: 11976232Abstract: Nonlinear optical chromophore compositions which display lyotropic nematic liquid crystal phases in polar organic solvents and provide a mechanical anisotropic effect allowing for the formation of a non-centrosymmetric chromophore-polymer matrix without the application of an electric field.Type: GrantFiled: December 9, 2022Date of Patent: May 7, 2024Assignee: Lightwave Logic, Inc.Inventors: Cory Pecinovsky, Barry Johnson, Ginelle A. Ramann
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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: 11952527Abstract: A liquid crystal medium containing a compound of formula I and one or more compounds of the formulae IIA, IIB, IIC and IID, useable in optical, electro-optical and electronic purposes, in particular in LC displays.Type: GrantFiled: July 2, 2021Date of Patent: April 9, 2024Assignee: MERCK PATENT GMBHInventors: Sven Christian Laut, Harald Hirschmann, Juergen Radestock
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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: 11899038Abstract: An acceleration sensor is provided in which a sensitive color plate is provided between two polarizing plates that are in a crossed Nicol disposition, and a silver nanowire dispersion is disposed between the sensitive color plate and one of the polarizing plates.Type: GrantFiled: December 18, 2020Date of Patent: February 13, 2024Assignee: Resonac CorporationInventors: Yasunao Miyamura, Yasushi Kadowaki, Kuniaki Yamatake, Masanao Hara, Shigeru Yamaki, Hideki Ohata
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Patent number: 11886081Abstract: According to one embodiment, a liquid crystal device includes a first liquid crystal cell and a second liquid crystal cell bonded to the first liquid crystal cell. Each of the first liquid crystal cell and the second liquid crystal cell includes a first substrate, a second substrate, a liquid crystal layer, a sealant bonding the first substrate and the second substrate together, one or more first spacers disposed inside the sealant and holding the gap, and a plurality of second spacers disposed in an effective area surrounded by the sealant and holding the gap.Type: GrantFiled: March 13, 2023Date of Patent: January 30, 2024Assignee: JAPAN DISPLAY INC.Inventors: Junko Nagasawa, Hiroya Morimoto, Yuji Maede
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Patent number: 11873438Abstract: A liquid-crystalline medium with one or more compounds of the formula IA and, one or more compounds of formula BS and the use thereof in an active-matrix display, in particular in a VA, IPS, U-IPS, FFS, UB-FFS, SA-VA, SA-FFS, PS-VA, PS-OCB, PS-IPS, PS-FFS, PS-UB-FFS, PS-poli-VA, PS-TN, polymer stabilized SA-VA or polymer stabilized SA-FFS display.Type: GrantFiled: December 18, 2019Date of Patent: January 16, 2024Assignee: MERCK PATENT GMBHInventors: Rachel Tuffin, Matthias Bremer, Marcus Reuter
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Patent number: 11820932Abstract: A polymerisable LC material comprising at least one di- or multireactive mesogenic compound and at least one compound of formula CO-1, wherein R1, R2, L1, L2, L3, and n have the meanings as given in claim 1. Furthermore, a method for preparation of the LC material, a polymer film with improved thermal durability obtainable from the corresponding polymerisable LC material, a method of preparation of such polymer film, and the use of such polymer film and said polymerisable LC material for optical, electro-optical, decorative or security devices.Type: GrantFiled: September 25, 2017Date of Patent: November 21, 2023Assignee: Merck Patent GmbHInventors: Dong-Mee Song, Yong-Hyun Choi, Jae-Hyun Kang, Yong-Kuk Yun
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Patent number: 11788010Abstract: A liquid crystal composition includes at least one compound of general formula F and at least one compound of general formula N. A liquid crystal display device includes the liquid crystal composition. The liquid crystal composition has a larger K value, a smaller rotational viscosity, a higher VHR value, a longer low temperature storage time and a shorter response time while maintaining an appropriate clearing point, an appropriate optical anisotropy, and an appropriate absolute value of dielectric anisotropy, such that the liquid crystal display device including the liquid crystal composition has a better contrast, a wider temperature range for application, a faster response speed, a better contrast and a higher reliability.Type: GrantFiled: October 26, 2022Date of Patent: October 17, 2023Assignee: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Chenglong Sun, Yafei Yang, Tengyun Zhao, Rongrong Li, Huijuan Dai, Panpan Wang, Di He, Wenquan Ding
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Patent number: 11716874Abstract: The present disclosure provides a display panel, a display device and a display method. The display panel includes a base substrate, and an organic electroluminescent device layer, a detection sensor and a color switchable structure which are successively located on the base substrate and are insulated from each other, where the organic electroluminescent device layer includes a plurality of sub-pixels, and the color switchable structure includes sub-units disposed in one-to-one correspondence with the sub-pixels; the sub-units are configured to transmit light emitted by the sub-pixels under the control of applied different signals, or to display light of colors corresponding to the applied signals; and the detection sensor is configured to detect display parameters of the sub-pixels or the sub-units.Type: GrantFiled: March 31, 2020Date of Patent: August 1, 2023Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Yanqiu Li, Juan Yu
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Patent number: 11667840Abstract: The present invention relates to liquid-crystalline media comprising one or more compounds of formula DFS in which the groups and parameters occurring have the meanings indicated in claim 1, to high-frequency components comprising same, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, in particular for microwave phased-array antennas. The present invention further relates to novel mesogenic compounds.Type: GrantFiled: October 23, 2017Date of Patent: June 6, 2023Assignee: Merck Patent GmbHInventors: Atsutaka Manabe, Christian Jasper, Volker Reiffenrath, Constanze Brocke, Detlef Pauluth, Dagmar Klass, Michael Wittek, Renate Seeger, Dmitry Ushakov, Beate Schneider
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Patent number: 11650463Abstract: According to one embodiment, a liquid crystal device includes a first liquid crystal cell and a second liquid crystal cell bonded to the first liquid crystal cell. Each of the first liquid crystal cell and the second liquid crystal cell includes a first substrate, a second substrate, a liquid crystal layer, a sealant bonding the first substrate and the second substrate together, one or more first spacers disposed inside the sealant and holding the gap, and a plurality of second spacers disposed in an effective area surrounded by the sealant and holding the gap.Type: GrantFiled: December 9, 2021Date of Patent: May 16, 2023Assignee: JAPAN DISPLAY INC.Inventors: Junko Nagasawa, Hiroya Morimoto, Yuji Maede
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Patent number: 11641339Abstract: Technologies for mobile content delivery include an edge computing device, a mobile terminal, and a content delivery network server. The edge computing device has a network location between the mobile terminal and a core network, and the content delivery network server is accessed through the core network. The edge computing device receives a content request from the mobile terminal and modifies the content request to identify the network location of a zone-specific proxy of the edge computing device. The edge computing device forwards the content response to the content delivery network server. The content delivery network server may send a content response to the zone-specific proxy or the mobile terminal. The content response identifies an address of a network content resource. The network content resource is located at a surrogate content delivery network server of the edge computing device. Other embodiments are described and claimed.Type: GrantFiled: June 3, 2021Date of Patent: May 2, 2023Assignee: Intel CorporationInventor: Yifan Yu
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Patent number: 11623971Abstract: Disclosed is preparation of a freestanding ion gel having high stability and high ionic conductivity based on surface-activity ionic liquids. Further, disclosed is a solid electrolyte using the ion gel. A method for preparing the freestanding ion gel include mixing a surface-activity ionic liquid having an alkyl group having 8 or greater carbon atoms, a crosslinking agent, water and oil with each other to form a bicontinuous microemulsion mixture; ii) adding an initiator to the mixture; and iii) curing the mixture using ultraviolet (UV) or thermal energy to form a freestanding ion gel.Type: GrantFiled: August 19, 2020Date of Patent: April 11, 2023Assignees: Research & Business Foundation Sungkyunkwan University, Kunsan National University Industry-University Cooperation FoundationInventors: Gi Ra Yi, Min Jae Lee, Tae Hui Kang, Yeon Ho Ahn, Duk Joon Kim
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Patent number: 11517860Abstract: The invention relates to dense synthetic membranes made from polymerised phosphonium-based ionic liquids which were found to be particularly suitable for use in gas separation. The membranes are obtainable by copolymerization via UV-curing of a composition comprising a phosphonium-based ionic liquid monomer, a co-monomer, a cross-linker, a surfactant and a photo-initiator, the remainder of the polymerization mixture consisting of water. The invention also relates to a process of manufacturing said membranes, resulting in solid, dense and mechanically stable membranes, and to the use of the membranes so produced in the separation of gas mixtures, particularly gas mixtures containing carbon dioxide.Type: GrantFiled: March 8, 2019Date of Patent: December 6, 2022Assignees: Consiglio Nazionale Delle Ricerche, Universitá Di Pisa, Universitá Della CalabriaInventors: Alberto Figoli, Francesco Galiano, Giuseppe Barbieri, Adele Brunetti, Lidietta Giorno, Christian Silvio Pompelli, Cinzia Chiappe, Bartolo Gabriele, Raffaella Mancuso, Yujiro Itami
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Patent number: 11522141Abstract: An electronic switching element is described having, in sequence, a first electrode, a molecular layer bonded to a substrate, and a second electrode. The molecular layer contains compounds of formula I, R1-(A1-Z1)r—B1—(Z2-A2)s-Sp-G, wherein A1, A2, B1, Z1, Z2, Sp, G, r, and s are as defined herein, in which a mesogenic radical is bonded to the substrate via a spacer group, Sp, by means of an anchor group, G. The switching element is suitable for production of components that can operate as a memristive device for digital information storage.Type: GrantFiled: June 7, 2021Date of Patent: December 6, 2022Assignee: MERCK PATENT GMBHInventors: Peer Kirsch, Andreas Ruhl, Marc Tornow, Achyut Bora
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Patent number: 11492551Abstract: As a material used in an element used for phase control of an electromagnetic wave signal having a frequency of 1 GHz to 10 THz, a liquid crystal composition is required, which has a high upper limit temperature of a nematic phase, a low lower limit temperature of a nematic phase, large dielectric anisotropy and a small tan ? in a frequency region where the phase control of an electromagnetic wave signal is performed, and stability against heat, and which has an excellent balance of the characteristics. A liquid crystal composition which is used in an element for phase control of an electromagnetic wave signal having any frequency from 1 GHz to 10 THz, the liquid crystal composition containing at least one compound selected from compounds represented by Formula (1) as a first component.Type: GrantFiled: September 8, 2021Date of Patent: November 8, 2022Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Takanori Mori, Yoichi Uriu, Eiji Okabe, Hitoshi Tobata
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Patent number: 11466212Abstract: A liquid crystal composition includes one or more compounds of general Formula I in an amount of 1%-30% by weight of the total weight of the liquid crystal composition, one or more compounds of general Formula II in an amount of 5%-35% by weight of the total weight of the liquid crystal composition, and one or more compounds of general Formula III in an amount of 1%-35% by weight of the total weight of the liquid crystal composition. The liquid crystal composition has an appropriate clearing point, an appropriate optical anisotropy, an appropriate dielectric anisotropy, as well as a higher voltage holding ratio, a higher transmittance, a good high-temperature resistant performance and a faster response speed, thus being suitable for display modes, such as VA, IPS and FFS. A photoelectric display device includes the liquid crystal composition.Type: GrantFiled: August 20, 2020Date of Patent: October 11, 2022Assignee: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Weigang Yan, Wenyang Ma, Wenming Han
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Patent number: 11453824Abstract: The invention relates to a liquid-crystalline medium and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PM-VA, SS-VA, PALC, IPS, PS-IPS, FFS or PS-FFS effect.Type: GrantFiled: April 20, 2017Date of Patent: September 27, 2022Assignee: Merck Patent GmbHInventors: Harald Hirschmann, Martina Windhorst
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Patent number: 11447703Abstract: 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 T in which and the other 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 compounds of formula T and their use for the improvement of the transmission and/or response times of a liquid-crystalline medium which comprises one or more additional mesogenic compounds.Type: GrantFiled: June 26, 2019Date of Patent: September 20, 2022Assignee: Merck Patent GmbHInventors: Atsutaka Manabe, Constanze Brocke, Sven Baran, Sebastian Hofmeyer, Alexander Hahn
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Patent number: 11359142Abstract: A liquid-crystalline medium, preferably having a nematic phase and dielectric anisotropy of 0.5 or more, which comprises one or more compounds of each of formulae T and L in which the parameters have the meanings given in the claims and in the text. 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. Also, the compounds of formulae T and L and their use for the improvement of the transmission and/or response times of a liquid-crystalline medium which comprises one or more additional mesogenic compounds.Type: GrantFiled: December 18, 2020Date of Patent: June 14, 2022Assignee: Merck Patent GmbHInventors: Atsutaka Manabe, Constanze Brocke, Sebastian Hofmeyer
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Patent number: 11345854Abstract: A liquid crystal dielectric applicable to high-frequency electromagnetic wave modulation has a clearing point of the liquid crystal dielectric higher than 110° C., a low-temperature storage temperature lower than ?20° C., and an optical anisotropy greater than 0.35. The liquid crystal dielectric includes: one or more compounds selected by general formula I, which occupy 30-80% of the total weight of the liquid crystal dielectric, and one or more compounds selected by general formula II and/or general formula III, which occupy 20-70% of the total weight of the liquid crystal dielectric.Type: GrantFiled: September 6, 2019Date of Patent: May 31, 2022Assignee: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Wenquan Ding, Zhenting Zhou, Panpan Wang
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Patent number: 11312908Abstract: Dielectrically positive liquid-crystalline media comprising a compound of the formula TINUVIN 770 and optionally one or more compounds of formula I, in which the parameters have the respective meanings indicated in the specification, and optionally one or more further dielectrically positive compounds and optionally one or more further dielectrically neutral compounds, and to liquid-crystal displays, especially active-matrix displays and in particular TN, IPS and FFS displays, containing these media.Type: GrantFiled: May 21, 2013Date of Patent: April 26, 2022Assignee: Merck Patent GmbHInventors: Achim Goetz, Hee-Kyu Lee, Mark Goebel
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Patent number: 11299673Abstract: A liquid crystal (LC) medium comprising a polymerizable compound, a process for its preparation, its use for optical, electro-optical and electronic purposes, such as LC displays, including LC displays of the polymer sustained alignment (PSA) type, and LC displays, including PSA displays, comprising the LC medium.Type: GrantFiled: August 4, 2017Date of Patent: April 12, 2022Assignee: MERCK PATENT GMBHInventors: Ji-Won Jeong, Eun-Kyu Lee, Hyun-Jin Yoon, Min-Ok Jin, Yong-Kuk Yun
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Patent number: 11279879Abstract: The invention relates to a liquid-crystalline medium, characterised in that it comprises one or more compounds of the formula IA, and one or more compounds of the formula IB, in which RA, RB, XA, XB and Y1-13 have the meanings indicated in Claim 1, and to the use thereof for electro-optical purposes, in particular for shutter glasses, 3D applications, in TN, PS-TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, PS-FFS and PS-VA-IPS displays.Type: GrantFiled: July 25, 2018Date of Patent: March 22, 2022Assignee: MERCK PATENT GMBHInventors: Harald Hirschmann, Sabine Schoen
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Patent number: 11274252Abstract: A method and apparatus for improved switching speed and/or tunability for radio-frequency (RF) devices are described. In one embodiment, a liquid crystal (LC) component comprises an LC structure in a mixture with right-handed (R) and left-handed (S) chiral dopants.Type: GrantFiled: December 13, 2016Date of Patent: March 15, 2022Assignee: Merck Patent GmbHInventors: Erik Shipton, Philip Sullivan, Sebastian Gauza
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Patent number: 11261163Abstract: The present invention relates to compounds of formula M in which RM has the meaning indicated in claim 1, to liquid crystal mixture comprising the same, to the use of these liquid-crystal media, in particular in components for high-frequency technology, and to components of this type which contain media according to the invention, and to the production and use of these components. The components according to the invention are suitable, in particular, as phase shifters in the microwave and millimetre wave region, for microwave and millimetre wave array antennae and very particularly for so-called tunable “reflectarrays”.Type: GrantFiled: March 22, 2017Date of Patent: March 1, 2022Assignee: Merck Patent GmbHInventors: Matthias Bremer, Atsutaka Manabe
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Patent number: 11254873Abstract: A liquid crystal composition, and a liquid crystal display element or liquid crystal display including the liquid crystal composition and belonging to the field of liquid crystal display. The liquid crystal composition includes a compound represented by formula I, a compound represented by formula II, one or more compounds represented by formula III, and at least one polymerizable compound. The liquid crystal composition simultaneously has a low rotary viscosity, a large refractive index, and a fast response speed.Type: GrantFiled: April 11, 2019Date of Patent: February 22, 2022Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL, CO., LTD.Inventors: Sumin Kang, Zhian Liang, Ruixiang Liang, Jiaming Li, Guoliang Yun, Xuan Zhang
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Patent number: 11242486Abstract: A liquid crystal composition, and a liquid crystal display element or liquid crystal display comprising the liquid crystal composition, and belongs to the field of liquid crystal display. The liquid crystal composition comprises a compound represented by formula I, a compound represented by formula II, one or more compounds represented by formula III, and at least one polymerizable compound. The liquid crystal composition has a higher clearing point (CP), a large K value, a suitable optical anisotropy (?n), and a fast response speed.Type: GrantFiled: April 11, 2019Date of Patent: February 8, 2022Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Sumin Kang, Zhian Liang, Ruixiang Liang, Guoliang Yun, Jiaming Li, Xuan Zhang
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Patent number: 11225605Abstract: An object of the present invention is to provide a polymerizable liquid crystal compound having excellent solubility, which is used for the formation of an optically anisotropic film having excellent durability, a method for producing the same, a polymerizable liquid crystal composition, an optically anisotropic film, an optical film, a polarizing plate, and an image display device. The polymerizable liquid crystal compound of the embodiment of the present invention is a polymerizable liquid crystal compound represented by Formula (1), L1-SP1-A1-D3-G1-D1-Ar-D2-G2-D4-A2-SP2-L2 . . . (1) in Formula (1), the ClogP value of the group represented by L1-SP1-A1-D3-G1-D1 and the ClogP value of the group represented by L2-SP2-A2-D4-G2-D2 are different from each other, and at least one of the ClogP values is 3.3 or more.Type: GrantFiled: August 1, 2019Date of Patent: January 18, 2022Assignee: FUJIFILM CorporationInventors: Daisuke Hayashi, Satoshi Shimamura, Keita Takahashi
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Patent number: 11208395Abstract: The present invention discloses a compound of which a structural formula thereof is represented as the following formula: The compound disclosed by the present invention can be used as a liquid crystal compound and overcomes the problem that solubility of the traditional dibenzothiophene-class liquid crystals is poor, and thus can be better applied to the liquid crystal material field. The present invention further discloses a liquid crystal medium containing the compound and an application thereof.Type: GrantFiled: May 8, 2018Date of Patent: December 28, 2021Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Ming Li, Hongru Gao, Guoliang Yun, Xing Zhang, Jinsong Meng, Li Zhang, Lei Zhao, Yanli Dong
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Patent number: 11180698Abstract: The present invention relates to liquid-crystalline media comprising one or more pleochroic compounds, and one or more compounds selected from the group of compounds of formulae I, II and III, in which the groups have the meanings as set forth in claim 1, and to components comprising these media for high-frequency technology, in particular phase shifters and microwave array antennas.Type: GrantFiled: January 20, 2017Date of Patent: November 23, 2021Assignee: Merck Patent GmbHInventors: Michael Wittek, Dagmar Klass, Peer Kirsch
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Patent number: 11168255Abstract: 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 T in which denotes and 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 compounds of formula T and their use for the improvement of the transmission and/or response times of a liquid-crystalline medium which contains one or more additional mesogenic compounds.Type: GrantFiled: July 11, 2019Date of Patent: November 9, 2021Assignee: Merck Patent GmbHInventors: Atsutaka Manabe, Constanze Brocke, Sven Baran, Sebastian Hofmeyer, Alexander Hahn
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Patent number: 11153997Abstract: A display apparatus including a heat sink plane disposed on a bottom surface of a display panel and configured in such a way that a coupling groove with a circuit board accommodated therein is formed in the guide panel, which is coupled to the bottom surface of a heat sink plane, to attach and detach the circuit board into and from the coupling groove through a guide holder disposed on a guide panel.Type: GrantFiled: December 3, 2019Date of Patent: October 19, 2021Assignee: LG Display Co., Ltd.Inventor: Hyo-Jin Bang
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Patent number: 11098250Abstract: Disclosed are a liquid crystal composition, a liquid crystal display element, and a liquid crystal display, said liquid crystal composition comprising one or more compounds represented by formula I, one or more compounds represented by formula II, one or more compounds represented by formula III and one or more compounds represented by formula IV, The liquid crystal composition of the present invention has a good stability to light and heat and a lower viscosity, and can attain a wider refractive index and a high clearing point (a wide service temperature range), and in particular, the liquid crystal composition has a high light transmittance, thus allowing a display device to have a high brightness or an energy saving effect.Type: GrantFiled: January 3, 2019Date of Patent: August 24, 2021Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Yameng Zai, Kai Xu, Guanchao Zhang, Ke-Lun Shu, Guoliang Yun, Gang Wen, Xiaoming Xiong, Wei Wang
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Patent number: 11099445Abstract: A display panel and a display apparatus are provided. The display panel includes a first substrate and a second substrate which are arranged oppositely. A liquid crystal layer is filled between the first substrate and the second substrate, the liquid crystal layer has dielectric anisotropy of parameter in a range from ?1 F/m to 1 F/m, a sum of a bending flexural coefficient and a splaying flexoelectric coefficient of the liquid crystal layer is greater than 1 pc/m, and liquid crystal molecules in the liquid crystal layer are deflected by a flexoelectric effect, so that deflecting speed of the liquid crystal molecules in the liquid crystal layer is improved and the response time of the liquid crystal layer is shortened.Type: GrantFiled: May 5, 2016Date of Patent: August 24, 2021Assignees: BOE TECHNOLOGY GROUP CO., LTD., KENT STATE UNIVERSITYInventors: Guangkui Qin, Dengke Yang, Xiaochen Zhou
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Patent number: 11066602Abstract: Provided are a reactive mesogen that may improve display quality of a liquid crystal display, and a liquid crystal composition including the same. The reactive mesogen is represented by the following Formula: BZ1b1XZ2b2Pa where X, Z1, Z2, B, and Pa are specified in the disclosure, and each of b1 and b2 is independently an integer between 0 to 6, inclusive.Type: GrantFiled: May 22, 2019Date of Patent: July 20, 2021Assignee: Samsung Display Co., Ltd.Inventor: Ho Lim
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Patent number: 11053441Abstract: A liquid crystal composition and the use thereof are provided. The liquid crystal composition comprises 15-30% by weight of three or more compounds of general formula I; the general formula I must comprises at least two compounds of general formula I-1; wherein, by weight of the total amount of the liquid crystal composition, the total amount of the compounds of general formula I-1 is no lower than 10%, and the content of each of the compounds of general formula I-1 is no higher than 8%. The liquid crystal composition has appropriately high optical anisotropy, higher dielectric anisotropy, lower threshold voltage, suitable elastic constant, suitable temperature range of nematic phase, good reliability and heat stability, and good low-temperature intersolubility.Type: GrantFiled: August 4, 2017Date of Patent: July 6, 2021Assignee: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Haibin Xu, Wenming Han
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Patent number: 11046889Abstract: The polymerizable liquid crystal compound has reverse wavelength dispersion or low wavelength dispersion and has high solubility in various solvents. The polymerizable liquid crystal compound provides an optically anisotropic body having high adhesiveness to substrates (or alignment films), by adding the polymerizable liquid crystal compound to a polymerizable composition and polymerizing the polymerizable composition using ultraviolet light. The invention provides a polymerizable composition containing the polymerizable liquid crystal compound having reverse wavelength dispersion or low wavelength dispersion, a polymer obtained by polymerizing the polymerizable composition, and an optically anisotropic body using the polymer.Type: GrantFiled: December 1, 2016Date of Patent: June 29, 2021Assignee: DIC CORPORATIONInventors: Yoshitaka Saito, Tatsufumi Yamazaki, Masahiro Horiguchi, Junichi Mamiya, Toru Tsuruta