Including Heterocyclic Ring Patents (Class 252/299.61)
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Patent number: 8883037Abstract: Chiral liquid crystal compounds of the general formula (1): in which at least one of R1 and R2 is a chiral substituent, K may be a single bond or the same as K1-5 and K1-5 denote a six-membered ring system which rings may be at least partially unsaturated, wherein the number of atoms in these rings or ring systems between the two atoms forming a part of the link to the next ring, or to one of the substituents R1 and R2, does not differ by more than one if counted in the clockwise, and in the counter-clockwise sense, starting from the same atom in each case, X1-20 denote alkyl, or alkoxy, or fluorinated alkyl, or fluorinated alkoxy groups, or atom H, or halogen atoms, mixtures comprising such chiral liquid crystal compounds, and liquid crystal displays comprising such mixtures as active ingredients.Type: GrantFiled: April 15, 2013Date of Patent: November 11, 2014Assignee: Tetragon LC Chemie AGInventors: Wolfgang Haase, Artsiom Lapanik
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Publication number: 20140327862Abstract: The present invention relates to a ferroelectric liquid crystal composition and a ferroelectric liquid crystal display element. The present invention provides a ferroelectric liquid crystal composition and a ferroelectric liquid crystal display element using this ferroelectric liquid crystal. The ferroelectric liquid crystal composition of the present invention contains at least one liquid crystal compound and has a chiral smectic C phase, and when the ferroelectric liquid crystal composition is sandwiched between substrates, a layer normal direction of the chiral smectic C phase is 80° to 90° with respect to the substrate surface. According to the ferroelectric liquid crystal composition and the ferroelectric liquid crystal display element of the present invention, since an alignment restoring ability is excellent, the present invention is useful for application in which a pressing force is repeatedly applied.Type: ApplicationFiled: November 14, 2012Publication date: November 6, 2014Applicants: DIC CORPORATION, DIC CORPORATIONInventors: Kazuaki Hatsusaka, Toru Fujisawa, Kazunori Maruyama, Isa Nishiyama
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Patent number: 8877092Abstract: The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I, in which R1, R1*, ring A have the meanings indicated in claim 1, and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PALC, FFS or IPS effect.Type: GrantFiled: February 10, 2011Date of Patent: November 4, 2014Assignee: MERCK PATENT GmbHInventors: Melanie Klasen-Memmer, Volker Reiffenrath, Konstantin Schneider, Andreas Waechtler, Elvira Montenegro
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Publication number: 20140312275Abstract: This invention relates to liquid crystal compound of formula I containing benzene derivatives group that hydrogen substituted by deuterium. Liquid crystal compounds of formula I have not only large positive dielectric anisotropy, but also moderate optical anisotropy and driving voltage, thereby having great significance to formulate a liquid crystal mixture. A liquid crystal mixture containing such type of liquid crystal compounds can be applied in various display devices, which is particularly suitable for TN and STN display devices, and can also be used in IPS and VA display devices.Type: ApplicationFiled: July 3, 2014Publication date: October 23, 2014Inventors: Ze Feng HOU, Wen Hai LU, Xing ZHANG, Guo Liang YUN, Rui Mao HUA, Ming LI, Lei ZHAO
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Publication number: 20140306158Abstract: To provide a liquid crystal composition satisfying at least one characteristic such as high maximum temperature of a nematic phase, low minimum temperature thereof, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and heat, or has a suitable balance regarding at least two characteristics. To provide an AM device having short response time, a large voltage holding ratio, a large contrast ratio, long service life and so forth. A liquid crystal composition has a nematic phase and contains a specific compound having large dielectric anisotropy as a first component and a specific compound having small viscosity as a second component, and may contain a specific compound having high maximum temperature or small viscosity as a third component and a specific compound having large dielectric anisotropy as a fourth component, and a liquid crystal display device includes the composition.Type: ApplicationFiled: April 3, 2014Publication date: October 16, 2014Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventor: MASAYUKI SAITO
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Patent number: 8860912Abstract: There is provided a liquid crystal display device capable of preventing a decrease in voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) and resolving the problem of display defects such as white spots, alignment unevenness, image sticking, and the like. The liquid crystal display device prevents a decrease in voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) and suppressing the occurrence of display defects such as image sticking and the like. The liquid crystal display device is thus useful for a VA-mode or PSVA-mode liquid crystal display device for active matrix driving. The application of the device includes liquid crystal display devices such as liquid crystal TVs, monitors, cellular phones, and smart phones.Type: GrantFiled: January 29, 2013Date of Patent: October 14, 2014Assignee: DIC CorporationInventors: Masakazu Kaneoya, Kiyofumi Takeuchi, Akira Kimura, Seiji Funakura, Katsunori Shimada
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Publication number: 20140293213Abstract: A liquid crystal composition containing a polymerizable compound of the present invention has excellent characteristics of being able to prepare a PSA type liquid crystal display element with no problem of depositing in a wide temperature range, having high polymerization speed, high liquid crystal alignment regulation force after polymerization, excellent display qualities with no display unevenness or the like, and excellent display characteristics with no defects in display characteristics such as image sticking and is appropriate as a liquid crystal composition in a practical use. Further, the liquid crystal display element with the above-described liquid crystal composition can be appropriately used for a PSA type liquid crystal display element.Type: ApplicationFiled: August 10, 2012Publication date: October 2, 2014Applicant: DIC CORPORATIONInventors: Kazuki Kurisawa, Takeshi Kuriyama, Shotaro Kawakami
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Publication number: 20140291579Abstract: This disclosure relates to a blue phase liquid crystal composite material formed by photopolymerization of material components comprising a parent blue phase liquid crystal, a photo-polymerizable monomer, a photoinitiator, and inorganic nanoparticles; and to a liquid crystal display comprising the blue phase liquid crystal composite material. The blue phase liquid crystal composite material has a low driving voltage, no electro-optical hysteresis, and rapid response time to an electric field.Type: ApplicationFiled: December 31, 2013Publication date: October 2, 2014Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Huai Yang, Ling Wang, Wanli He
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Publication number: 20140284523Abstract: A liquid crystal composition is described, which has a negative dielectric anisotropy and contains a specific compound having high stability to ultraviolet light as a first component, and may further contain a specific compound having a large negative dielectric anisotropy as a second component, a specific compound having a high maximum temperature or a small viscosity as a third component, and a specific compound having a polymerizable group as an additive component. An AM liquid crystal display device is also described, including the liquid crystal composition.Type: ApplicationFiled: March 18, 2014Publication date: September 25, 2014Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: YOSHIMASA FURUSATO, ERIKO KURIHARA
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Patent number: 8834744Abstract: The invention relates to a liquid-crystalline medium comprising one or more compounds of the formula I in which R0, X0 and L1-6 have the meanings indicated in Claim 1, and to the use thereof in electro-optical liquid-crystal displays.Type: GrantFiled: August 14, 2013Date of Patent: September 16, 2014Assignee: Merck Patent GmbHInventors: Michael Wittek, Brigitte Schuler, Reiffenrath Volker, Mark Goebel, Markus Czanta
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Patent number: 8834742Abstract: A system having a vertically-aligned negative delta E nematic liquid crystal host material and a small amount of liquid crystal polymer is provided. The liquid crystal polymer improves the switching speed of a vertically aligned nematic system without sacrificing contrast or viewing angle.Type: GrantFiled: July 29, 2011Date of Patent: September 16, 2014Assignees: California Institute of Technology, LC Vision, LLCInventors: Julia A. Kornfield, Michael Wand, Zuleikha Kurji
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Patent number: 8821993Abstract: A liquid crystal composition has a negative dielectric anisotropy, and contains a specific bicyclic compound having a large optical anisotropy and a small viscosity as a first component and a specific compound having a large maximum temperature and a large dielectric anisotropy as a second component, and may contain a specific compound having a small viscosity as a third component, a specific compound having a large dielectric anisotropy as a fourth component and a specific compound having a large dielectric anisotropy as a fifth component, and a liquid crystal display device includes the composition.Type: GrantFiled: September 27, 2011Date of Patent: September 2, 2014Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Norikatsu Hattori, Yoshinari Matsumura, Hiroaki Fujita
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Patent number: 8821992Abstract: A liquid crystal formulation is described. The liquid crystal formulation comprises a first oligosiloxane-modified nano-phase segregating liquid crystalline material; and at least one additional material selected from a second oligosiloxane-modified nano-phase segregating liquid crystalline material, non-liquid crystalline oligosiloxane-modified materials, organic liquid crystalline materials, or non-liquid crystalline materials, wherein the liquid crystal formulation has an I?SmA*?SmC* phase transition, with a SmC* temperature range from about 15° C. to about 35° C., a tilt angle of about 22.5°±6° or about 45°±6°, a spontaneous polarization of less than about 50 nC/cm2., and a rotational viscosity of less than about 600 cP. Devices containing liquid crystal formulations are also described.Type: GrantFiled: October 26, 2007Date of Patent: September 2, 2014Assignees: Dow Corning Corporation, Cambridge Enterprise Ltd.Inventors: Jonathan Paul Hannington, Terry Victor Clapp, Fumito Nishida, Russel Keith King, Omar Farooq, Martin Grasmann, William Alden Crossland, Harry James Coles, Anthony Bernard Davey, Huan Xu, Oliver Hadeler, Mykhaylo Pivnenko
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Patent number: 8821757Abstract: The invention relates to a liquid-crystalline medium comprising one or more compounds of the formula (I), in which R0 has the meanings indicated in Claim 1, and to the use thereof in electro-optical liquid-crystal displays.Type: GrantFiled: January 25, 2011Date of Patent: September 2, 2014Assignee: Merck Patent GmbHInventors: Michael Wittek, Brigitte Schuler, Lars Lietzau
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Patent number: 8815117Abstract: The present invention provides a mixture for liquid crystal medium and a liquid crystal display using the same. The mixture for liquid crystal medium comprises: at least one anisotropic liquid crystal material and a polymerizable monomer which will polymerize under UV irradiation. The weight percentage of the polymerizable monomer accounts for 0.1% to 1% of the total mixture for liquid crystal medium. In the mixture for liquid crystal medium and a liquid crystal display using the same according to the present invention, by using a polymerizable monomer which will polymerize under UV irradiation and the appropriate content ratio, the polymer bump with small size and good uniformity can be obtained within the mixture for liquid crystal medium after the polymerization, which avoids the bad liquid crystal alignment and the light spot occurred at the dark state of the liquid crystal panel, and then increases the response rapid of the liquid crystal panel to obtain high contrast ratio and stable mass production.Type: GrantFiled: October 16, 2012Date of Patent: August 26, 2014Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventors: Xing Feng, Xinhui Zhong
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Patent number: 8808814Abstract: The liquid crystal composition includes a specific two-ring compound having a large optical anisotropy and a small viscosity as a first component, a specific three-ring compound having a high maximum temperature and a large dielectric anisotropy as a second component, and a specific compound having a large dielectric anisotropy as a third component, and may include a specific compound having a small viscosity as a fourth component, a specific three-ring compound having a large optical anisotropy and a large dielectric anisotropy as a fifth component, and a specific compound having a large dielectric anisotropy as a sixth component, and the liquid crystal display device contains this composition.Type: GrantFiled: September 27, 2011Date of Patent: August 19, 2014Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Yoshinari Matsumura, Norikatsu Hattori
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Publication number: 20140225036Abstract: A nematic liquid crystal composition of the present invention is used in liquid crystal display devices of the TN mode, OCB mode, ECB mode, IPS mode, or VA-IPS mode. The liquid crystal composition has positive dielectric anisotropy. Since the refractive index anisotropy and the nematic phase-isotropic liquid phase transition temperature are decreased and the increase in the lower limit temperature of the nematic phase is suppressed, the viscosity of the liquid crystal composition is sufficiently low without degrading the nematic phase temperature range. The liquid crystal composition also offers excellent features such as high-speed response, good display quality, and less display failures and is thus suitable as a practical liquid crystal composition.Type: ApplicationFiled: July 31, 2012Publication date: August 14, 2014Applicant: DIC CORPORATIONInventors: Masakazu Kaneoya, Kiyofumi Takeuchi, Masashi Osawa, Kenta Tojo, Tetsuo Kusumoto
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Patent number: 8801965Abstract: The present invention provides a liquid crystal medium composition and a liquid crystal display panel manufactured with same. The liquid crystal medium composition includes a negative type liquid crystal material, a polymerizable monomer, a sensitizer, and stabilizer. The sensitizer is an organometallic complex that has an amount of 0.01%-5% of total mass of the liquid crystal composition and has a strong absorption of ultraviolet light having a wavelength of 300-450 nm. The sensitizer converts the primary wavelength range of ultraviolet light for reaction of the polymerizable monomer from 200-300 nm to 300-450 nm, staying away from the absorption band of the liquid crystal material and reducing damages caused on the liquid crystal material and the alignment material of polyimide, thereby heightening reaction efficiency and homogeneity of the polymerizable monomer and the quality and lifespan of the liquid crystal display panel.Type: GrantFiled: November 14, 2012Date of Patent: August 12, 2014Assignee: Shenzen China Star Optoelectronic Technology co., Ltd.Inventors: Xinhui Zhong, Kuancheng Lee
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Patent number: 8801966Abstract: Provided are liquid crystal compounds and mixtures incorporating the same. The liquid crystal compounds of the invention generally comprise a cyclopentane group and at least two other rings. In one embodiment, the liquid crystal compounds of the invention comprise a cyclopentane group and at least two other rings, one of which is a fused ring system.Type: GrantFiled: February 5, 2009Date of Patent: August 12, 2014Assignee: VVI Bright China Ltd.Inventors: Xinhua Chen, R. Amaranatha Reddy
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Patent number: 8795552Abstract: The invention relates to a liquid-crystalline medium containing one or more compounds of the formula I and one or more compounds selected from the group of the compounds of the formula IA to IE in which R0, R1, R2, X0, X1, X2, A1, Z1, m, p, q, v have the meanings indicated in Claim 1, and to the use thereof in electro-optical liquid-crystal displays.Type: GrantFiled: July 13, 2009Date of Patent: August 5, 2014Assignee: Merck Patent GmbHInventors: Mingchou Wu, Martin (Kelun) Shu, Carol (Yi-Hsuan) Lin, Mark Verrall
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Patent number: 8795795Abstract: The invention is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large positive dielectric anisotropy, a large specific resistance, a large elastic coefficient, a high stability to ultraviolet light and heat, or that is suitably balanced between at least two of the characteristics. As the liquid crystal display device containing the compositions is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth, thus it can be used for the liquid crystal projector, liquid crystal television and so forth.Type: GrantFiled: June 6, 2012Date of Patent: August 5, 2014Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Takayoshi Yanai, Norikatsu Hattori, Tokifumi Masukawa
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Patent number: 8795553Abstract: A liquid crystal composition is described, which contains a two-ring compound having a large optical anisotropy and a negatively large dielectric anisotropy as a first component, and a two-ring compound having a negatively large dielectric anisotropy and a small viscosity as a second component, and may further contain at least one of a compound having a small viscosity as a third component, a compound having a negatively large dielectric anisotropy as a fourth component, and a compound having an especially negatively large dielectric anisotropy as a fifth component. An AM liquid crystal display device containing the liquid crystal composition is also described.Type: GrantFiled: February 18, 2011Date of Patent: August 5, 2014Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Norikatsu Hattori, Kazuhiko Saigusa
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Publication number: 20140203209Abstract: An object is to provide a liquid crystal compound satisfying at least one of physical properties such as a high stability to heat, light and so forth, a high clearing point, a low minimum temperature of a liquid crystal phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a suitable elastic constant and an excellent compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. A solution is the compound represented by formula (1): wherein, in formula (1), for example, R1 is alkyl having 1 to 10 carbons; ring A1 and ring A2 are independently 1,4-cyclohexylene or 1,4-phenylene; Z1 and Z2 are independently a single bond or —CF2O—; L1 and L2 are halogen; and a is 1 or 2.Type: ApplicationFiled: January 21, 2014Publication date: July 24, 2014Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Yasuyuki GOTOH, Kenji HIRATA
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Patent number: 8784682Abstract: Disclosed are a thermosetting composition including a liquid crystal oligomer, a bismaleimide-based compound, an epoxy compound, and a fluorinated polymer resin powder. A resin cured product, board, and storage medium each include the thermosetting composition.Type: GrantFiled: March 15, 2011Date of Patent: July 22, 2014Assignees: Samsung Electro-Mechanics Co., Ltd., Samsung Fine Chemicals Co., Ltd.Inventors: Myung-Sup Jung, Jae-Jun Lee
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Patent number: 8784684Abstract: A compound which has a benzoxazinone ring and an aromatic ring that directly bonds to the benzoxazinone ring, and has a mesogenic core substituted by a substituent having a polymerizable functional group is excellent in terms of durability, colorless, and exhibits a high ?n while having an azomethine bond.Type: GrantFiled: August 7, 2013Date of Patent: July 22, 2014Assignee: FUJIFILM CorporationInventors: Satoshi Shimamura, Mitsuyoshi Ichihashi
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Publication number: 20140183409Abstract: A liquid crystal composition including an antioxidant, and a liquid crystal display device containing this composition are described. The liquid crystal composition has a nematic phase, has a high solubility in a liquid crystal composition, and includes a specific antioxidant useful for preventing deterioration of the composition. The liquid crystal composition may also include a specific compound having a high maximum temperature or a small viscosity as a first component, a specific compound having a high maximum temperature or a large dielectric anisotropy as a second component, and a specific compound having a large negative dielectric anisotropy as a third component.Type: ApplicationFiled: December 26, 2013Publication date: July 3, 2014Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: YASUYUKI GOTOH, RYUSHI SHUNDO, NORIKATSU HATTORI
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Publication number: 20140183408Abstract: The present invention provides a mixture for liquid crystal medium and a liquid crystal display using the same. The mixture for liquid crystal medium comprises: a liquid crystal material, a polymerizable monomer and a sensitizer. The sensitizer has strong absorbability within the wavelength range of 300-360 nm of the ultraviolet light. The liquid crystal display comprising: an upper substrate and a lower substrate which are parallel with each other, and a mixture for liquid crystal medium provided between the upper substrate and the lower substrate. The sensitizer according to the present invention has strong absorbability within the wavelength range of 300-360 nm of the ultraviolet light, which allows the response wavelength of the polymerizable monomer shifting to longer wavelength.Type: ApplicationFiled: October 16, 2012Publication date: July 3, 2014Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Xing Feng, Xinhui Zhong
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Patent number: 8765012Abstract: A thermosetting composition including an organic solvent, a liquid crystalline thermoset oligomer, and either a crosslinking agent or an epoxy resin or both is disclosed. A printed circuit board which includes the thermosetting composition is also disclosed. The printed circuit board is produced by impregnating the thermosetting composition into a reinforcing material.Type: GrantFiled: November 18, 2009Date of Patent: July 1, 2014Assignees: Samsung Electronics Co., Ltd., Samsung Electro-Mechanics Co., Ltd., Samsung Fine Chemicals Co., Ltd.Inventors: Myung Sup Jung, Chung Kun Cho, Kwang Hee Kim, Kalinina Fedosya, Man Jong Kim, Tae Jun Ok
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Patent number: 8765011Abstract: To provide a liquid crystal compound having general physical properties required for the compound, namely, a high stability to heat, light and so forth, a small viscosity, a refractive index anisotropy value having a suitable magnitude, a dielectric constant anisotropy value having a suitable magnitude and steep electro-optical characteristics, a wide temperature range of a nematic phase, and an excellent compatibility with other liquid crystal compounds, in particular, a liquid crystal compound having a wide temperature range of the nematic phase; the compound is represented by formula (1): wherein R is alkenyl having 2 to 20 carbons; ring A1 and ring A2 are independently 1,4-cyclohexylene, or 1,4-phenylene in which at least one of hydrogen may be replaced by fluorine; Z1 and Z2 are independently a single bond, —CH2CH2—, —CH?CH—, —CH2O— or —OCH2—; and n is 0 or 1.Type: GrantFiled: May 10, 2012Date of Patent: July 1, 2014Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Teizi Satou, Yasuyuki Goto
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Publication number: 20140176896Abstract: The present invention provides a mixture for liquid crystal medium and a liquid crystal display using the same. The mixture for liquid crystal medium comprises: at least one anisotropic liquid crystal material and a polymerizable monomer which will polymerize under UV irradiation. The weight percentage of the polymerizable monomer accounts for 0.1% to 1% of the total mixture for liquid crystal medium. In the mixture for liquid crystal medium and a liquid crystal display using the same according to the present invention, by using a polymerizable monomer which will polymerize under UV irradiation and the appropriate content ratio, the polymer bump with small size and good uniformity can be obtained within the mixture for liquid crystal medium after the polymerization, which avoids the bad liquid crystal alignment and the light spot occurred at the dark state of the liquid crystal panel, and then increases the response rapid of the liquid crystal panel to obtain high contrast ratio and stable mass production.Type: ApplicationFiled: October 16, 2012Publication date: June 26, 2014Inventors: Xing Feng, Xinhui Zhong
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Publication number: 20140166931Abstract: A liquid crystal composition and an AM liquid crystal display device are described. The liquid crystal composition has a negative dielectric anisotropy, contains a specific compound having a large negative dielectric anisotropy as a first component and a two-ring compound having a small viscosity as a second component, and may further contain a specific compound having a large negative dielectric anisotropy as a third component, a specific compound having a small viscosity as a fourth component and a specific compound having a large negative dielectric anisotropy as a fifth component. The AM liquid crystal display device includes the liquid crystal composition.Type: ApplicationFiled: February 8, 2013Publication date: June 19, 2014Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Yasuyuki Goto, Kazuhiko Saigusa, Norikatsu Hattori
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Publication number: 20140158934Abstract: The instant invention relates to mesogenic media comprising one or more compounds selected from the group of compounds of formulae M-I and M-II wherein the parameters are as specified in the text, preferably to mesogenic media showing a blue phase, preferably stabilised by a polymer, and their use in electro-optical light modulation elements and their respective use in displays, as well as to such devices.Type: ApplicationFiled: July 13, 2012Publication date: June 12, 2014Applicant: MERCK PATENT GMBHInventors: Michael Wittek, Norihiko Tanaka, Mila Fischer, Matthias Bremer, Andreas Taugerbeck
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Publication number: 20140160384Abstract: The present invention relates to a smectic A phase liquid crystal material, which contains at least one heterocyclic compound. The smectic A phase liquid crystal material of the present invention may further contain at least one ester compound and an ionic compound. By using the smectic A phase liquid crystal material in a display device, a displayed image can be completely erased without any residual images after a long-term placement or a long-term drive, the contrast is generally higher than 10, and the drive voltage is generally 20 to 50 V.Type: ApplicationFiled: September 27, 2012Publication date: June 12, 2014Inventors: Wenlei Li, Gang Sun, Huan Yin, Zhixian Tan, Huaibin Zhai
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Patent number: 8747695Abstract: The present invention relates to compounds of the formula (I) where one or more of the radicals A1-5 denote a 1,4-naphthylene or 1,4-anthracenylene radical, and the other parameters are as defined in Claim 1. The invention additionally includes liquid-crystalline media which comprise the title compounds, components for high-frequency technology which comprise these media, in particular phase shifters and microwave array antennae.Type: GrantFiled: October 1, 2010Date of Patent: June 10, 2014Assignee: Merck Patent GmbHInventors: Christian Jasper, Elvira Montenegro, Detlef Pauluth, Volker Reiffenrath, Atsutaka Manabe
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Patent number: 8741397Abstract: Disclosed is a liquid crystal display element which is composed of a pair of substrates (1) at least one of which is transparent. The liquid crystal display element comprises, between the pair of substrates, a transparent electrode (2), an aligning agent (3) that contains at least reactive monomers and/or oligomers (5), and a liquid crystal layer. The liquid crystal display element is characterized in that an alignment layer is obtained by polymerizing the reactive monomers or oligomers contained in the aligning agent, and the liquid crystal layer is composed of a liquid crystal composition that contains a compound (4) having at least one benzene ring in each molecule, said benzene ring containing at least one fluorine atom and being disubstituted by halogen atoms.Type: GrantFiled: October 18, 2010Date of Patent: June 3, 2014Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Norikatsu Hattori, Atsuko Fujita
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Publication number: 20140145113Abstract: A liquid crystal compound having high stability to heat, light and so forth, a high clearing point, a 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. The compound is represented by formula (1-1): wherein, for example, R1 is hydrogen, halogen or alkyl having 1 to 20 carbons; ring A1, ring A2, ring A3, ring A4 and ring A5 are independently 1,4-cyclohexylene or 1,4-phenylene; Z1, Z2, Z3 and Z4 are independently a single bond, —(CH2)2—, —CH?CH— or —CF?CF—: and a, b, c and d are independently 0 or 1, and a sum of a, b, c and d is one or more.Type: ApplicationFiled: November 26, 2013Publication date: May 29, 2014Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Tomohiro YANO, Junichi YAMASHITA
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Publication number: 20140138581Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having a negative dielectric anisotropy which contains at least one self-aligning additive, especially at least one additive selected from the group of the compounds of the formula IA to ID in which R1A, R1B, R1C, L1-12, R1D, Ring I, u, v, w, x, y, z and m have the meanings indicated in Claim 4 and to the use thereof for an active-matrix display, in particular based on the VA, PSA and PS-VA effect in LC displays.Type: ApplicationFiled: July 3, 2012Publication date: May 22, 2014Applicant: MERCK PATENT GMBHInventors: Graziano Archetti, Andreas Taugerbeck, Renate Bender, Ming-Chou Wu
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Patent number: 8728590Abstract: The liquid crystal composition having a negative dielectric anisotropy contains two ring compound having a large optical anisotropy and a negatively large dielectric anisotropy as the first component, three ring compound having a large maximum temperature and a large dielectric anisotropy as the second component, three ring compound having a large optical anisotropy and a large dielectric anisotropy as the third component, and two ring compound having a small viscosity as the fourth component. The liquid crystal display device contains the compositions.Type: GrantFiled: May 24, 2011Date of Patent: May 20, 2014Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Norikatsu Hattori, Kazuhiko Saigusa
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Publication number: 20140132868Abstract: An optically isotropic liquid crystal composition is described. The liquid crystal composition contains an achiral component T and a chiral agent, contains at least one compound represented by formula (1) as a first component of the achiral component T, and exhibits an optically isotropic liquid crystal phase: wherein, for example, R1 is alkyl having 1 to 20 carbons; L1 to L8 are independently hydrogen or fluorine; Z1 to Z3 are each independently a single bond, —COO— or —CF2O—, but at least one thereof is —COO—; n1 and n2 are each independently 0 or 1; and X1 is halogen.Type: ApplicationFiled: May 22, 2013Publication date: May 15, 2014Applicants: JNC Petrochemical Corporation, JNC CorporationInventors: Koki Sago, Shin-ichi Yamamoto, Takafumi Kuninobu, Yasuhiro Haseba
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Publication number: 20140125938Abstract: The present invention relates to polymerizable compounds, liquid-crystalline media containing the compounds, in particular liquid crystal (LC) media and LC displays having a polymer-stabilized blue phase, and also LC media for LC displays of the PS or PSA type (“polymer-sustained” or “polymer-sustained alignment”).Type: ApplicationFiled: May 15, 2012Publication date: May 8, 2014Applicant: MERCK PATENT GMBHInventors: Michael Wittek, Norihiko Tanaka, Andreas Taugerbeck
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Patent number: 8715527Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it comprises one or more compounds of the formula I and one or more compounds selected from the compounds of the formulae IA and IB in which R1, R2, L1-4, X1 and X2 have the meanings indicated in claim 1.Type: GrantFiled: December 23, 2008Date of Patent: May 6, 2014Assignee: Merck Patent GmbHInventors: Georg Luessem, Christian Hock, Brigitte Schuler, Eike Poetsch
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Patent number: 8709280Abstract: Polar nematic compounds having the following structure: where is a caged boron structure. The sphere of the caged boron structure is C and each non-sphere vertex of the caged boron structure is B—H. R is H, an alkyl, a cycloalkyl, a bicycloalkyl, an alkenyl, a cycloalkenyl, a bicycloalkenyl, an alkynyl, an acyl, an aryl, an alkylaryl, a halogen, a cyano group, an isothiocyanoto group, or a group that forms an ether, a ketone, an ester, a thioester, a sulfide, or a sulfone. R? is H, an alkyl, a cycloalkyl, a bicycloalkyl, an alkenyl, a cycloalkenyl, a bicycloalkenyl, an alkynyl, an aryl, an alkylaryl, or a halogen. The compounds may be used in liquid crystal displays, and in television sets, laptop computers, computer monitors, hand-held communication devices, gaming devices, watches, cash registers, clocks, and calculators having liquid crystal displays.Type: GrantFiled: April 26, 2012Date of Patent: April 29, 2014Assignee: Vanderbilt UniversityInventors: Bryan Ringstrand, Piotr Kaszynski
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Publication number: 20140110631Abstract: The invention relates to a liquid-crystalline medium comprising at least one compound of the formula I, in which R1 and R2 have the meanings indicated in Claim 1, and to the use thereof in electro-optical liquid-crystal displays.Type: ApplicationFiled: October 23, 2013Publication date: April 24, 2014Applicant: Merck Patent GmbHInventors: Harald HIRSCHMANN, Volker REIFFENRATH
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Patent number: 8703012Abstract: To provide a liquid crystal composition satisfying at least one characteristic such as a high maximum temperature of a nematic phase, a low minimum temperature thereof, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy and specific resistance, a high stability to ultraviolet light and heat, or a liquid crystal composition having a suitable balance regarding at least two characteristics; an AM device having a short response time, a large voltage holding ratio and contrast ratio, a long service life and so forth; wherein the liquid crystal composition contains a specific compound having a polymerizable group as a first component, and may contain a specific compound having a large negative dielectric anisotropy and a low minimum temperature as a second component, or a specific compound having a small viscosity or a large maximum temperature as a third component, and a liquid crystal display device contains the composition.Type: GrantFiled: May 9, 2011Date of Patent: April 22, 2014Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Yoshimasa Furusato, Eriko Kurihara
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Patent number: 8703013Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy, which contains at least one compound of the formula I and at least one compound of the formula II in which R1, R2, R3, R4, ring A, Z1, Z2 and m are as defined in Claim 1, and to the use thereof for an active-matrix display based on the ECB, VA, PS-VA, FFS, PALC or IPS effect.Type: GrantFiled: March 8, 2013Date of Patent: April 22, 2014Assignee: Merck Patent GmbHInventors: Norihiko Tanaka, Makoto Murakami, Shinji Nakajima
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Patent number: 8696933Abstract: Polar nematic compounds, one example of which has the following structure: is a caged boron structure, where the sphere of the caged boron structure is C and each non-sphere vertex of the caged boron structure is B—H. R is H, an alkyl, a cycloalkyl, a bicycloalkyl, an alkenyl, a cycloalkenyl, a bicycloalkenyl, an alkynyl, an acyl, an aryl, an alkylaryl, a halogen, a cyano group, or an isothiocyanoto group, or R is a group that forms an ether, a ketone, an ester, a thioester, a sulfide, or a sulfone. X is COOR? or COSR?. R? is H, an alkyl, a cycloalkyl, a bicycloalkyl, an alkenyl, a cycloalkenyl, a bicycloalkenyl, an alkynyl, an aryl, a halogen, or a cyano group. The compounds may be used in liquid crystal displays (LCDs), and in television sets, laptop computers, computer monitors, hand-held communication devices, gaming devices, watches, cash registers, clocks, and calculators having liquid crystal displays.Type: GrantFiled: April 10, 2012Date of Patent: April 15, 2014Assignee: Vanderbilt UniversityInventors: Bryan Ringstrand, Piotr Kaszynski
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Patent number: 8697199Abstract: The invention relates to novel calamitic mesogenic compounds which are especially suitable for use in birefringent films with negative optical dispersion, to novel liquid crystal (LC) formulations and polymer films comprising them, and to the use of the compounds, formulations and films in optical, electrooptical, electronic, semiconducting or luminescent components or devices.Type: GrantFiled: August 6, 2008Date of Patent: April 15, 2014Assignee: Merck Patent GmbHInventors: Kevin Adlem, Owain Llyr Parri, Karl Skjonnemand, David Wilkes
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Publication number: 20140097383Abstract: A liquid crystal composition and an AM liquid crystal display device are described. The liquid crystal composition contains a specific compound having a small viscosity as a first component, may further contain a specific compound having a large negative dielectric anisotropy as a second component and a specific compound having a small viscosity as a third component, and has a negative dielectric anisotropy and a ratio of rotational viscosity to an elastic constant in the range of 4.2 GPa·s/N or lower. The liquid crystal display device includes the composition.Type: ApplicationFiled: February 8, 2013Publication date: April 10, 2014Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Yoshimasa Furusato, Masayuki Saito
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Patent number: 8691111Abstract: A liquid crystal composition comprising a chiral dopant compound represented by the following formula: wherein: R1, R2 are independently aryl, alkyl, alkenyl, cycloalkyl, alkoxyaryl, alkaryl or heterocyclic all either substituted or unsubstituted, or combine to form a carbocyclic or heterocyclic ring; R3 and R4 are independently hydrogen, halogen, cyano, alkoxy, NHCOR7, NHSO2R7, COOR7, OCOR7, aryl, alkyl, alkenyl, cycloalkyl, alkoxyaryl, alkaryl or heterocyclic all either substituted or unsubstituted, or combine with either R1 or R2 to form a carbocylic or heterocyclic ring; R5 and R6 are independently hydrogen, CH2, CH, alkyl or aryl either substituted or unsubstituted, COOR7, or combine with L to form a carbocyclic or heterocyclic ring; R7 is aryl, alkyl, alkenyl, cycloalkyl, alkoxyaryl or heterocyclic all either substituted or unsubstituted; L is the non-metallic elements required to form a carbocyclic or heterocyclic ring, or a single bond or a double bond; m is 1-3; n is 0-12.Type: GrantFiled: April 26, 2012Date of Patent: April 8, 2014Assignee: Kent Displays Inc.Inventors: Donald R. Diehl, Thomas Welter, Erica N. Montbach, J. William Doane, Nithya Venkataraman
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Patent number: 8685275Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy, which contains at least one compound of the formula I and at least one compound of the formula II in which R1, R2, R3, R4, ring A, Z1, Z2 and m are as defined in claim 1, and to the use thereof for an active-matrix display based on the ECB, VA, PS-VA, FFS, PALC or IPS effect.Type: GrantFiled: April 24, 2013Date of Patent: April 1, 2014Assignee: Merck Patent GmbHInventors: Norihiko Tanaka, Makoto Murakami, Shinji Nakajima