Including Fully Saturated Ring Patents (Class 252/299.63)
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Patent number: 12203023Abstract: The present invention relates to a compound of formula GF in which the occurring groups and parameters have the meanings defined in claim 1, to a liquid crystal medium comprising a compound of formula GF and to high-frequency components comprising these media, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, tunable filters, tunable metamaterial structures, and electronic beam steering antennas, e.g. phased array antennas.Type: GrantFiled: March 29, 2022Date of Patent: January 21, 2025Assignee: MERCK PATENT GMBHInventors: Constanze Brocke, Dagmar Klass, Carsten Fritzsch
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Patent number: 12163080Abstract: Disclosed are a liquid crystal (LC) composition and a high-frequency component including the same. The LC composition includes one or more selected from compounds shown in structural formula (I) and one or more selected from compounds shown in structural formula (II): where R1 is selected from alkyl with 1 to 10 carbon atoms, alkenyl with 2 to 10 carbon atoms, fluorinated alkyl, fluorinated alkenyl, and cycloalkyl; one of X1, X2, and X3 is methyl or chlorine, and the other two are hydrogen; k, m, n, and p are 0 or 1; and ring A is selected from a benzene ring, cyclohexane, and cyclohexene; ?where R2 and R3 each are selected from alkyl with 1 to 10 carbon atoms, alkenyl with 2 to 10 carbon atoms, fluorinated alkyl, fluorinated alkenyl, cycloalkyl, halogen, and NCS; and ring A and ring B each are selected from a benzene ring, cyclohexane, and cyclohexene.Type: GrantFiled: August 21, 2020Date of Patent: December 10, 2024Assignee: XI'AN MODERN CHEMISTRY RESEARCH INSTITUTEInventors: Jian Li, Minggang Hu, Juanli Li, Zhaoyi Che, Lingchao Mo, Lu Zhang, Zhongwei An, Danyang Wan, Xiaozhe Yang, Cheng Yang, Fengjiao Shi
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Patent number: 11976229Abstract: The present invention belongs to the technical field of liquid crystal materials, and in particular relates to a negative liquid crystal composition and a liquid crystal display element or liquid crystal display containing the liquid crystal composition. The present invention discloses a negative dielectric nematic liquid crystal composition, comprising a compound 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 has a relatively low rotational viscosity (?1), a high clearing point (Cp), a good solubility and a high stability to heat and light (VHR) on the basis of maintaining an appropriate optical anisotropy (?n), and can be used for developing a liquid crystal display element or liquid crystal display with a low cell thickness, a wide temperature for display, and a fast response.Type: GrantFiled: August 25, 2020Date of Patent: May 7, 2024Assignee: Shijiazhuang Chengzhi Yonghua Display Material Co., ltd.Inventors: Wei Zhang, Qing Cui, Gang Wen, Sumin Kang
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Patent number: 11964933Abstract: The present invention relates to aromatic isothiocyanates of formula U as defined in claim 1, to liquid-crystalline media comprising one or more compounds of formula U and to high-frequency components comprising these media, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, tunable filters, tunable metamaterial structures, and electronic beam steering antennas, e.g. phased array antennas.Type: GrantFiled: October 8, 2020Date of Patent: April 23, 2024Assignee: MERCK PATENT GMBHInventors: Constanze Brocke, Dmitry Ushakov, Carsten Fritzsch, Dagmar Klass
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Patent number: 11959007Abstract: The present invention relates to a novel class of polymers which can be used as dielectric material for the preparation of passivation layers in electronic devices. The polymers are prepared from polymerizable compounds having mesogenic groups and they provide excellent film forming capability and excellent mechanical properties and have a low dielectric constant and a low coefficient of thermal expansion (CTE). There is further provided a method for forming said polymers and an electronic device containing said polymers as dielectric material. Beyond that, the present invention relates to a manufacturing method for preparing a packaged microelectronic structure and to a microelectronic device comprising said packaged microelectronic structure formed by said manufacturing method.Type: GrantFiled: January 21, 2019Date of Patent: April 16, 2024Assignee: MERCK PATENT GMBHInventors: Frank Meyer, Gregor Larbig, Karsten Koppe
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Patent number: 11891557Abstract: Isothiocyanato tolane derivatives of formula I-1 and liquid-crystalline media comprising same are suitable for use in high-frequency components, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, in particular for microwave phased-array antennas.Type: GrantFiled: September 11, 2018Date of Patent: February 6, 2024Assignee: MERCK PATENT GMBHInventors: Dmitry Ushakov, Beate Schneider, Carsten Fritzsch, Michael Wittek, Dagmar Klass
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Patent number: 11834598Abstract: The present invention relates to a polymerizable mixture which can be used to form a dielectric material for the preparation of passivation layers in electronic devices. The polymerizable mixture comprises a first monomer and a second monomer which may react to form a copolymer providing excellent film forming capability, excellent thermal properties and excellent mechanical properties. There is further provided a method for forming said copolymers and an electronic device containing said copolymers as dielectric material. Beyond that, the present invention relates to a manufacturing method for preparing a packaged microelectronic structure and to a microelectronic device comprising said packaged microelectronic structure formed by said manufacturing method.Type: GrantFiled: October 15, 2019Date of Patent: December 5, 2023Assignee: Merck Patent GmbHInventors: Gregor Larbig, Pawel Miskiewicz, Frank Meyer, Joerg Pahnke, Karsten Koppe
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Patent number: 11434426Abstract: A fast flexoelectro-optic switching device containing bimesogen-doped and polymer-stabilized vertical standing helix (PSVSH) in a cholesteric liquid crystal. The PSVSH device exhibits a response time of less than 0.7 millisecond, high contrast and negligible hysteresis which is suitable for applications including blur-free displays, field-sequential color displays and active optical elements.Type: GrantFiled: March 9, 2018Date of Patent: September 6, 2022Assignee: Kent State UniversityInventors: Liang-Chy Chien, Vinay Joshi, Kai-Han Chang
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Patent number: 11332670Abstract: A side-chain liquid crystal polymer including two or more kinds of constitutional units represented by the following general formula (I) and a liquid crystal constitutional unit which contains a side chain including a liquid crystal moiety, where the two or more kinds of constitutional units represented by the general formula (I) include a constitutional unit (a) represented by the general formula (I) and a constitutional unit (b) which is represented by the general formula (I) and is different from the constitutional unit (a) in carbon atom number of a linking group represented by L1 or L1?.Type: GrantFiled: June 14, 2017Date of Patent: May 17, 2022Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Ken-ichi Okuyama, Kiyohiro Takachi, Shunsuke Irie, Mami Motooka, Terutaka Takahashi
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Patent number: 11326102Abstract: 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 YX 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 YX 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: September 5, 2018Date of Patent: May 10, 2022Assignee: MERCK PATENT GMBHInventors: Atsutaka Manabe, Constanze Brocke, Brigitte Schuler
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Patent number: 11268027Abstract: 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, wherein the liquid crystal composition comprises a compound represented by formula I, one or more compounds represented by formula II, one or more compounds represented by formula III, one or more compounds represented by formula IV, and at least one polymerizable compound, and has a large dielectric anisotropy (??) and a large optical anisotropy (?n), and has an obvious advantage in the development of a liquid crystal display having a high transmittance and a low cell thickness.Type: GrantFiled: April 11, 2019Date of Patent: March 8, 2022Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Sumin Kang, Zhian Liang, Guoliang Yun, Ruixiang Liang, Jiaming Li, Xuan Zhang
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Patent number: 11267967Abstract: A composition for preparing an electro-optic material including a first polyimide having a high molecular weight, and a second polyimide having a lower molecular weight and including a structural unit including a chromophore functional group in the side chain, an electro-optic material including the composition, an electro-optic device including the electro-optic material, and a method of preparing the electro-optic material.Type: GrantFiled: June 22, 2020Date of Patent: March 8, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Min Sang Kim, Sang Soo Jee, Yoon Seok Ko, Hyunjeong Jeon, Kyeong-Sik Ju
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Patent number: 11242487Abstract: 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 of the present disclosure comprising a compound represented by formula I, one or more compounds 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 (?1), a larger dielectric anisotropy (??), 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, Guoliang Yun, Xuan Zhang, Jiaming Li, Ruixiang Liang
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Patent number: 11186774Abstract: The present invention relates to a liquid crystal (LC) medium comprising a polymerisable compound, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in an LC display of the polymer sustained alignment (PSA) type, and to an LC display, especially a PSA display, comprising it.Type: GrantFiled: April 29, 2016Date of Patent: November 30, 2021Assignee: MERCK PATENT GMBHInventors: Eun-Kyu Lee, Jin-Soon Park, Hyun-Jin Yoon, Min-Ok Jin, Yong-Kuk Yun
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Patent number: 11162028Abstract: A liquid crystal composition includes at least one compound of general formula I and at least one compound selected from a group consisting of the compounds of general formula II-1 and general formula II-2. The liquid crystal composition provided by the present invention has suitable optical anisotropy, high clearing point, high elastic constants K11 and K33, and relatively low dielectric anisotropy. When the liquid crystal composition is applied to a liquid crystal display device, the liquid crystal display device may have better weather resistance and higher contrast ratio.Type: GrantFiled: June 28, 2018Date of Patent: November 2, 2021Assignee: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Beibei Zhu, Haibin Xu, Pengfei Li, Di He, Shuang Xu
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Patent number: 11162029Abstract: Embodiments of the present disclosure provide a liquid crystal composition and its manufacturing method, a display panel and a display device. The liquid crystal composition includes: at least three organic compounds having a general formula of in which R1 is selected from C1 to C12 alkyl or C2 to C12 alkenyl; R2 is selected from C1 to C12 alkyl, C2 to C12 alkenyl or CF3; are independently selected from j, k and m are independently selected from 0, 1, 2 and 3; l and n are independently selected from 1, 2 and 3; and Z is selected from a single bond, C1 to C12 alkyl, C2 to C12 alkenyl, C2 to C12 alkynyl, CF2O or COO.Type: GrantFiled: April 17, 2019Date of Patent: November 2, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Rui Li, Pengju Zhang, Mingxing Liu, Haiyan Sun, Xiaochuan Chen
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Patent number: 10982145Abstract: The present invention relates to a negative dielectric anisotropic liquid crystal composition, a liquid crystal display element, and a liquid crystal display. The negative dielectric anisotropic liquid crystal composition of the present invention comprises a first component composed of one or more compounds represented by formula I and a second component composed of one or more polymerizable compounds: The negative dielectric anisotropic liquid crystal composition disclosed by the present invention has a low rotary viscosity, a fast response speed and a good stability, and is very suitable for manufacturing liquid crystal display elements, particularly suitable for PS (polymer-stabilized) or PSA (polymer-stabilized alignment)-type liquid crystal displays.Type: GrantFiled: May 31, 2019Date of Patent: April 20, 2021Assignee: SHIJIAZHUANG CHENGSHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Wenxiao Xing, Jiaming Li, Ruixiang Liang, Xuanfei Sun, Yapeng Huang, Hongru Gao
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Patent number: 10934488Abstract: A polymerizable compound-containing liquid crystal composition of the present invention relates to a liquid crystal composition containing a polymerizable compound represented by general formula (I) and a compound represented by general formula (II) and can be used for a liquid crystal display device imparted with liquid crystal aligning ability by polymerization. The polymerizable liquid crystal composition is required to cause no precipitation in a wide temperature range and have a low viscosity corresponding to fast switching, and a liquid crystal display device using the composition is required to have more stable alignment after polymerization and to cause no defect in display characteristics. In the present invention, the problems can be solved using a specified compound.Type: GrantFiled: April 11, 2019Date of Patent: March 2, 2021Assignee: DIC CORPORATIONInventors: Go Sudo, Shotaro Kawakami
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Patent number: 10907101Abstract: A liquid crystal cell includes a pair of facing substrates having a photo-alignment film, and a liquid crystal layer. The liquid crystal material contains a liquid crystal compound having a structure represented by any of the following chemical formula (1-1) and chemical formula (1-2): A1-CnF2n—X1-A2??(1-1) A1-X1—CnF2n+1??(1-2) in the chemical formula (1-1), A1 is a phenyl group, a phenylene group, a naphthyl group, a naphthylene group, a cyclohexyl group, or a cyclohexylene group; A2 is a phenyl group, a phenylene group, a naphthyl group, or a naphthylene group (provided that a hydrogen atom in functional groups A1 and A2 is optionally substituted by a fluoro group, a chloro group, a bromo group, a methyl group, or an ethyl group); X1 is an oxygen atom or a direct bond; and n is an integer of 1 to 6. The photo-alignment film is obtained by subjecting a polymer film to a photo-alignment treatment.Type: GrantFiled: September 20, 2018Date of Patent: February 2, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Masanobu Mizusaki, Hiroshi Tsuchiya
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Patent number: 10883049Abstract: A liquid crystal display (LCD) panel includes a first substrate, a second substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The liquid crystal layer includes liquid crystals with negative dielectric anisotropy and a hindered amine light stabilizer (HALS).Type: GrantFiled: August 29, 2017Date of Patent: January 5, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sung Hwan Hong, Mi Suk Kim, Tae Ho Kim, Keun Chan Oh, Chang Hun Lee
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Patent number: 10858587Abstract: Liquid-crystalline media containing one or more compounds of formulae I-1, I-2 and/or I-3 and one or more compounds of formulae II and/or III and components containing these media for high-frequency technology, in particular phase shifters and microwave array antennas.Type: GrantFiled: October 18, 2017Date of Patent: December 8, 2020Assignee: MERCK PATENT GMBHInventors: Michael Wittek, Dagmar Klass
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Patent number: 10767113Abstract: Provided is a liquid crystal compound containing 2,3,4-trisubstituted benzene, a liquid crystal composition thereof, and a liquid crystal display element or a liquid crystal display comprising the liquid crystal compound or the liquid crystal composition, wherein the liquid crystal composition has a lower viscosity, can achieve a quick response, and further has a moderate dielectric anisotropy ??, a moderate optical anisotropy ?n, and high stability to heat and light. The liquid crystal display element or liquid crystal display comprising the liquid crystal composition has the properties of a wider nematic phase temperature range, an appropriate birefringence anisotropy, a very high electrical resistivity, a good ultraviolet resistant property, a high charge retention rate, a low vapor pressure etc., and particularly, the liquid crystal compound or the liquid crystal composition has the advantage of a high light transmittance.Type: GrantFiled: September 25, 2017Date of Patent: September 8, 2020Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Guoliang Yun, Hongmei Cui, Mingxia Wang, Sumin Kang, Yongtao Zhang, Yong Chen
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Patent number: 10745618Abstract: A liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature, a low minimum temperature, a small viscosity, a suitable optical anisotropy and a large negative dielectric anisotropy, or that has a suitable balance between at least two of these characteristics, and an AM device including this composition. The nematic liquid crystal composition includes a specific compound having a large negative dielectric anisotropy as a first component and a specific compound having a small viscosity as a second component, and may include a specific compound having a negative dielectric anisotropy as a third component, and a specific compound having a high maximum temperature or a small viscosity as a fourth component, or a specific compound having a polymerizable group as an additive.Type: GrantFiled: June 8, 2017Date of Patent: August 18, 2020Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventor: Masayuki Saito
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Patent number: 10711197Abstract: The present invention relates to liquid-crystalline media comprising one or more compounds selected from the group of compounds of formulae I, II and III, in which the parameters R1-R3, Z21, Z31, Z32 and rings A11, A12, A13, A21, A22, A31, and A32 are as defined herein, and to components comprising these media for high-frequency technology, in particular phase shifters and microwave array antennas.Type: GrantFiled: January 26, 2017Date of Patent: July 14, 2020Assignee: MERCK PATENT GMBHInventors: Michael Wittek, Dagmar Klass, Atsutaka Manabe, Christian Jasper, Volker Reiffenrath, Constanze Brocke, Detlef Pauluth
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Patent number: 10647918Abstract: A liquid crystal composition includes: at least one liquid crystal compound selected from the group consisting of Chemical Formulas 1-1 to 1-8; at least one self-aligned compound selected from the group consisting of Chemical Formulas 2-1 and 2-2; and at least one reactive mesogen selected from the group consisting of Chemical Formulas 3-1 to 3-5. Compositions and devices constructed therewith are capable of ameliorating liquid crystal drip spots that typically occur in a manufacturing process. In addition, the display devices using the composition do not require an additional alignment layer, which simplifies manufacturing.Type: GrantFiled: August 23, 2018Date of Patent: May 12, 2020Assignee: Samsung Display Co., Ltd.Inventors: Ji Eun Jang, Sun Young Kwon, Min-Hee Kim, Jong Ho Son, Keun Chan Oh, Chang-Hun Lee
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Patent number: 10563126Abstract: A liquid crystal compound is represented by formula (1): In formula (1), R1 is alkyl or the like; ring A1 and ring A2 are independently 1,4-cyclohexylene, 1,4-phenylene or the like; Z1, Z2 and Z3 are independently a single bond, —CF2O— or the like; X1 is fluorine, chlorine, —CF3 or the like; L1 and L2 are independently hydrogen, fluorine or the like; a and b are independently 0, 1, 2 or 3; and W is a group represented by formula (1a) or formula (1b); In formula (1a) and formula (1b), L3 to L8 are independently hydrogen, fluorine or the like.Type: GrantFiled: May 10, 2016Date of Patent: February 18, 2020Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventor: Tomohiro Yano
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Patent number: 10465113Abstract: The present invention is a liquid crystal composition having negative dielectric anisotropy containing one or two or more of compounds represented by General Formula (i), and is also a liquid crystal display element using the liquid crystal composition. The problem to be solved by the present invention is to provide a liquid crystal composition with a large refractive index anisotropy (?n), a low rotational viscosity (?1), a large elastic constant (K33), a high voltage holding ratio (VHR), and which has a negative dielectric anisotropy (??), and a liquid crystal display element which, when using the liquid crystal composition, has a high response speed with excellent display quality in which display defects such as drop marks, burn-in, and display unevenness are absent or suppressed.Type: GrantFiled: April 14, 2016Date of Patent: November 5, 2019Assignee: DIC CORPORATIONInventors: Go Sudo, Shinichi Hirata
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Patent number: 10459292Abstract: A liquid crystal display includes a first substrate, a second substrate opposing the first substrate, an electrode portion provided on at least one of the first and second substrates, and a liquid crystal layer provided between the first substrate and the second substrate and including a liquid crystal composition. The liquid crystal composition includes a liquid crystal compound including a cyclohexenylene group, and provides the liquid crystal display with low rotary viscosity and high voltage holding ratio.Type: GrantFiled: April 21, 2017Date of Patent: October 29, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Joon Hyung Park, Kyung Hae Park, Jong Ho Son, Jin Hyeong Lee, Hye Lim Jang
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Patent number: 10435628Abstract: The invention relates to a polymerizable LC medium with negative optical dispersion, a polymer film with negative optical dispersion obtainable from such a medium, and the use of the polymerizable LC medium and polymer film in optical, electro optical, electronic, semiconducting or luminescent components or devices.Type: GrantFiled: July 13, 2015Date of Patent: October 8, 2019Assignee: MERCK PATENT GMBHInventors: Joseph Sargent, Owain Llyr Parri, Kevin Adlem, Hassan Arasi
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Patent number: 10407618Abstract: Shown are a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy and large negative dielectric anisotropy, or the liquid crystal composition having a suitable balance regarding at least two of the characteristics; and an AM device including the composition. The liquid crystal composition contains a specific compound having small optical anisotropy as a first component, and a specific compound having large negative dielectric anisotropy as a second component, and may contain a specific compound having high maximum temperature or small viscosity as a third component, or a specific compound having a polymerizable group as an additive.Type: GrantFiled: September 6, 2017Date of Patent: September 10, 2019Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventor: Masayuki Saito
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Patent number: 10403658Abstract: An image sensing device includes pixels forming rows and columns, sets of control lines respectively assigned to the rows such that one set of control lines is connected to one of the rows, a row drive circuit configured to drive the sets of control lines, and an assist circuit. Each set includes a first control line and a second control line. The row drive circuit includes a first drive circuit connected to a first end of the first control line and a second drive circuit connected to first end of the second control line. The assist circuit includes an assist drive circuit connected to a second end of the first control line so as to drive the first control line in accordance with a control signal supplied to the second control line.Type: GrantFiled: March 15, 2018Date of Patent: September 3, 2019Assignee: Canon Kabushiki KaishaInventors: Yoshiaki Takada, Kazuo Yamazaki
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Patent number: 10392561Abstract: The invention relates to bimesogenic compounds of formula I wherein R11, R12, MG11, MG12, X11, X12 and Sp1 have the meaning given in claim 1, to the use of bimesogenic compounds of formula I in liquid crystal media and particular to flexoelectric liquid crystal devices comprising a liquid crystal medium according to the present invention.Type: GrantFiled: December 8, 2015Date of Patent: August 27, 2019Assignee: Merck Patent GmbHInventors: Detlef Pauluth, Kevin Adlem, Owain Llyr Parri, Rachel Tuffin, Hassan Arasi, Patricia Eileen Saxton
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Patent number: 10392339Abstract: Provided is a polar compound having high chemical stability, high capability of aligning liquid crystal molecules, high solubility in a liquid crystal composition, and a large voltage holding ratio when used in a liquid crystal display device. The compound is represented by formula (1): in which, for example, R1 is alkyl having 1 to 15 carbons; MES is a mesogen group having at least one ring; Sp1 is a single bond or alkylene having 1 to 10 carbons; M1 and M2 are hydrogen; and R2 is a group represented by formulas (1a) to (1c): in which, Sp2 and Sp3 are a single bond or alkylene having 1 to 10 carbons; S1 is >CH—; S2 is >C<; and X1 is —OH.Type: GrantFiled: February 4, 2016Date of Patent: August 27, 2019Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Hiroyuki Tanaka, Masakazu Yano, Fumitaka Kondou, Kazuhiro Ogita
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Patent number: 10385271Abstract: To provide a liquid crystal composition having at least one or a suitable balance regarding two of characteristics such as high maximum or low minimum temperature of a nematic phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, large specific resistance, high stability to ultraviolet light or heat and a large elastic constant; and an AM device including the composition and having a short response time, a large voltage holding ratio, low threshold voltage, a large contrast ratio, a long service life and so forth. The liquid crystal composition contains a quencher as an additive component and a specific compound having large positive dielectric anisotropy as a first component, and a liquid crystal display device includes the composition. The composition may contain a specific compound having high maximum temperature or small viscosity as a second component, or a specific compound having negative dielectric anisotropy as a third component.Type: GrantFiled: November 19, 2015Date of Patent: August 20, 2019Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Yoshimasa Furusato, Masayuki Saito
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Patent number: 10351774Abstract: Provided are a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy and large dielectric anisotropy, or the liquid crystal composition having a suitable balance regarding at least two of the characteristics; and an AM device including the composition. The liquid crystal composition contains a specific compound having small optical anisotropy as a first component, and a specific compound having positive dielectric anisotropy as a second component, and may contain a specific compound having high maximum temperature or small viscosity as a third component, a specific compound having positive dielectric anisotropy as a fourth component, or a specific compound having negative dielectric anisotropy as a fifth component.Type: GrantFiled: September 11, 2017Date of Patent: July 16, 2019Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventor: Masayuki Saito
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Patent number: 10351771Abstract: The invention relates to a liquid-crystalline medium comprising at least one compound of the formula I, in which R1 has the meanings indicated in Claim 1, and to the use thereof in liquid-crystalline media and in electro-optical liquid-crystal displays.Type: GrantFiled: August 13, 2014Date of Patent: July 16, 2019Assignee: Merck Patent GmbHInventors: Mark Goebel, Lars Lietzau, Sabine Schoen, Andreas Pohle
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Patent number: 10351772Abstract: The present invention relates to a nematic liquid crystal composition containing a polymerizable compound and having a negative dielectric anisotropy (??) and PSA or PSVA liquid crystal display element produced by using the same. The liquid crystal composition according to the present invention can provide PSA or PSVA liquid crystal display element, in which a sufficient pretilt angle is included, the amount of remaining monomer is small, there are no or almost no problems, e.g., alignment defects and display defects, arisen from a low voltage holding rate (VHR) and the like, and excellent response performance is exhibited. A liquid crystal display element using the liquid crystal composition according to the present invention is useful for an active-matrix-drive liquid crystal display element and can be applied to PSA, PSVA, and other liquid crystal display elements.Type: GrantFiled: April 9, 2015Date of Patent: July 16, 2019Assignee: DIC CORPORATIONInventors: Go Sudo, Marina Goto
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Patent number: 10316252Abstract: The present invention provides a polymerizable compound represented by Formula (I), which can be used as a low birefringence liquid crystal; in the formula, R1 and R2 represent —C(?O)—X-Sp3-Q3 or the like, n1 and n2 represent 0 to 4, X represents —O— or the like, Z1 represents an arylene group or the like, Z2 represents an arylene group, or the like, m1 represents 1 or 2, m2 represents 0 to 2, L1 and L2 represent —C(?O)O—, —OC(?O)—, or the like, Sp1, Sp2, and Sp3 represent an alkylene group, a group in which one or two or more —CH2—'s in the alkylene group are substituted with —O—, or the like, Q1 and Q2 represent a polymerizable group, and Q3 represents a hydrogen atom or a polymerizable group; a polymer obtained by polymerizing the polymerizable compound; a polymerizable composition containing the polymerizable compound; and a film formed of the polymerizable composition.Type: GrantFiled: March 3, 2017Date of Patent: June 11, 2019Assignee: FUJIFILM CorporationInventors: Shunya Katoh, Daisuke Hayashi
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Patent number: 10294424Abstract: To show a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature thereof, small viscosity, suitable optical anisotropy, large positive dielectric anisotropy or having a suitable balance regarding at least two of the characteristics, and an AM device including the liquid crystal composition. The liquid crystal composition contains a specific compound having high maximum temperature and low minimum temperature as a first component, and the liquid crystal composition may contain a specific compound having large positive dielectric anisotropy as a second component, a specific compound having high maximum temperature or small viscosity as a third component, a specific compound having large positive dielectric anisotropy as a fourth component, or a specific compound having negative dielectric anisotropy as a fifth component.Type: GrantFiled: October 8, 2014Date of Patent: May 21, 2019Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Yoshimasa Furusato, Masayuki Saito
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Patent number: 10273410Abstract: Shown is a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature, a low minimum temperature, a small viscosity, a suitable optical anisotropy and a large dielectric anisotropy, or has a suitable balance regarding at least two of the characteristics, and an AM device including the composition. The liquid crystal composition contains a specific compound having large negative dielectric anisotropy as a first component, and a specific compound having small viscosity as a second component, and may contain a specific compound having negative dielectric anisotropy as a third component, a specific compound having a high maximum temperature or small viscosity as a fourth component or a specific compound having a polymerizable group as an additive component.Type: GrantFiled: April 5, 2017Date of Patent: April 30, 2019Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventor: Masayuki Saito
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Patent number: 10190048Abstract: The invention relates to a liquid-crystalline medium, preferably having a nematic phase and negative dielectric anisotropy, which comprises a) one or more compounds of formula I and b) one or more compounds selected from the group of compounds of the formulae II and III in which the parameters have the respective meanings indicated in claim 1, to the use thereof in an electro-optical display, particularly in an active-matrix display based on the VA, ECB, PALC, 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 I for reduction of the dispersion of the birefringence of a liquid-crystalline medium which comprises one or more compounds of the formulae II and/or III.Type: GrantFiled: July 13, 2015Date of Patent: January 29, 2019Assignee: Merck Patent GmbHInventors: Atsutaka Manabe, Sven Baran, Lars Lietzau, Brigitte Schuler
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Patent number: 10160909Abstract: The present invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy (??), which is distinguished by the fact that it has a value for the ratio ?1/?n2 in the range 6-45 with a clearing point of >60° C. and a ?? of ??2.3. Media of this type are particularly suitable for electro-optical displays having active-matrix addressing based on the ECB, PA LCD, FFS or IPS effect.Type: GrantFiled: November 8, 2016Date of Patent: December 25, 2018Assignee: Merck Patent GmbHInventors: Melanie Klasen-Memmer, Sabine Schoen
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Patent number: 10144870Abstract: The present invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy (??), which is distinguished by the fact that it has a value for the ratio ?1/?n2 in the range 6-45 with a clearing point of >60° C. and a ?? of ??2.3. Media of this type are particularly suitable for electro-optical displays having active-matrix addressing based on the ECB, PA LCD, FFS or IPS effect.Type: GrantFiled: November 8, 2016Date of Patent: December 4, 2018Assignee: Merck Patent GmbHInventors: Melanie Klasen-Memmer, Sabine Schoen
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Patent number: 10131841Abstract: The invention relates to the compounds of the formula I and to a liquid-crystalline medium based on a mixture of polar compounds which contains at least one compound of the formula I in which R1, ring A1, L1, L2, L3, L4, L5, L6, L7, L8, Z1 and m have the meanings indicated in claim 1 and to the use of the LC mixtures in electro-optical displays, especially for the self-aligning VA mode.Type: GrantFiled: December 15, 2014Date of Patent: November 20, 2018Assignee: Merck Patent GmbHInventors: Graziano Archetti, Izumi Saito, Rocco Fortte, Timo Uebel
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Patent number: 10113115Abstract: There is provided a liquid crystal composition having the following properties without suffering reductions in refractive index anisotropy (?n) and nematic phase-isotropic liquid phase transition temperature (Tm): sufficiently low viscosity (?), sufficiently low rotational viscosity (?1), a large elastic constant (K33), and a negative dielectric anisotropy (??) with a large absolute value. There is also provided a liquid crystal display device of, for example, a VA type that uses such a liquid crystal composition and that has a high response speed and excellent display quality with defective display being eliminated or reduced. In particular, a liquid crystal composition having a negative dielectric anisotropy is provided, the composition containing a first component that is at least one compound represented by General Formula (i) and a second component that is at least one compound selected from compounds represented by General Formula (L).Type: GrantFiled: September 1, 2015Date of Patent: October 30, 2018Assignee: DIC CORPORATION (TOKYO)Inventors: Kazunori Maruyama, Shinichi Hirata
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Patent number: 10106740Abstract: There is provided a liquid crystal composition having a dielectric anisotropy (??) large in absolute value, a sufficiently low viscosity (?), a sufficiently low rotational viscosity (?1), and a high elastic constant (K33) without decreased refractive index anisotropy (?n) or nematic phase-isotropic liquid phase transition temperature (Tni). A liquid crystal display device, such as a VA mode liquid crystal display device, including the liquid crystal composition has high response speed and good display quality with few or no display defects. The liquid crystal display device including the liquid crystal composition is useful as an active-matrix liquid crystal display device and is applicable as a liquid crystal display device such as a VA mode or PSVA mode liquid crystal display device.Type: GrantFiled: November 29, 2013Date of Patent: October 23, 2018Assignee: DIC CORPORATIONInventors: Go Sudo, Shotaro Kawakami
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Patent number: 10087370Abstract: The invention relates to mesogenic media comprising a first component, component A, consisting of bimesogenic compounds selected from the group of compounds of formulae A-I to A-III a second component, component B, consisting of nematogenic compounds, preferably selected from the group of compounds of formulae B-I to B-III and a third component, component C, consisting of one or more chiral molecules, wherein the parameters have the meaning given in claim 1, to the use of mesogenic media in flexoelectric liquid crystal devices and to those devices comprising a liquid crystal medium according to the present invention.Type: GrantFiled: May 10, 2013Date of Patent: October 2, 2018Assignee: MERCK PATENT GMBHInventors: Rachel Tuffin, Benjamin Snow, Owain Llyr Parri, Simon Siemianowski, Rebecca Proctor, Kevin Adlem
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Patent number: 10047293Abstract: To provide a liquid crystal compound satisfying at least one of high stability to heat, light and so forth, a high clearing point, low minimum temperature of a liquid-crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, a suitable elastic constant and excellent compatibility with other liquid-crystal compounds, a liquid crystal composition containing the compound and a liquid crystal display device including the composition. A compound is represented by formula (1-1). For example, R1 and R2 are independently hydrogen, alkyl having 1 to 10 carbons, alkenyl having 3 to 10 carbons and alkoxy having 1 to 9 carbons; ring A1 is 1,4-cyclohexylene; ring A2 and ring A3 are independently 1,4-cyclohexylene or 1,4-phenylene; Z1 is a single bond or —(CH2)2; l is 0 or 1, m and n are 0, 1 or 2, a sum: l+m+n is 0, 1 or 2; x is 0 or 1.Type: GrantFiled: August 7, 2015Date of Patent: August 14, 2018Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventor: Masahide Kobayashi
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Patent number: 10030198Abstract: The means concerns a liquid crystal composition that has negative dielectric anisotropy and that comprises a specific compound having a high stability to ultraviolet light as a first component, wherein the composition may comprise a specific compound having a high maximum temperature or a small viscosity as a second component, and a specific compound having a large negative dielectric anisotropy as a third component, and a specific compound having a polymerizable group as an additive component.Type: GrantFiled: October 21, 2014Date of Patent: July 24, 2018Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Eriko Kurihara, Masayuki Saito, Yoshimasa Furusato
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Patent number: 9976082Abstract: The present invention provides a liquid crystal composition having easily adjustable rotational viscosity while maintaining stability at low temperature, a clearing point and dielectric anisotropy (positive value) in an optimal condition according to an exemplary embodiment of the present invention, including: at least one liquid crystal compound selected from the group consisting of liquid crystal compounds represented by the following Chemical Formula 1, as a first component; at least one liquid crystal compound selected from the group consisting of liquid crystal compounds represented by the following Chemical Formula 2, as a second component; and at least one liquid crystal compound selected from the group consisting of liquid crystal compounds represented by the following Chemical Formula 3, as a third component.Type: GrantFiled: December 15, 2016Date of Patent: May 22, 2018Assignee: Dongjin Semichem Co., Ltd.Inventors: Bo Ra Hong, Sun-Hee Lee, Mi Kyoung Lee, Bong Hee Kim, Young Kuk Kim