Cell Containing Liquid Crystal Of Specific Composition Patents (Class 349/182)
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Publication number: 20130286317Abstract: The present invention provides a liquid crystal medium composition, a liquid crystal display using same and a manufacturing method thereof. The liquid crystal medium composition includes a liquid crystal material, a polymerizable monomer, a stabilizer, and a sensitizer. The sensitizer shows strong absorbance of ultraviolet light having wavelength between 300-380 nm and is composed of a polycyclic aromatic hydrocarbon composed of a plurality of benzene rings linked with substituted moieties. The liquid crystal display includes: upper and a lower substrate that are arranged parallel to each other and the liquid crystal medium composition arranged between the upper and lower substrates.Type: ApplicationFiled: May 10, 2012Publication date: October 31, 2013Applicant: Shenzhen China Star Optoelectronics Technology Co. LTD.Inventor: Xinhui Zhong
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Publication number: 20130271718Abstract: A display device including a first substrate, a second substrate, and a liquid crystal layer is provided. The liquid crystal layer is disposed between the first substrate and the second substrate. The liquid crystal layer includes a liquid crystal mixture and a nano carbon material. The nano carbon material is distributed in the liquid crystal mixture.Type: ApplicationFiled: March 8, 2013Publication date: October 17, 2013Applicant: INNOLUX CORPORATIONInventors: Chien-Hung Chen, Li-Chieh Hsu, Pi-Ying Chuang
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Publication number: 20130271719Abstract: To provide a liquid crystal compound having a large positive value of dielectric anisotropy and a small viscosity. The compound is represented by formula (1): wherein, in formula (1), R1 is alkyl having 1 to 20 carbons or the like; ring A1 is 1,4-cyclohexylene or the like; ring A2 is 1,4-phenylene, 2-fluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene or the like; ring A3 is 1,4-cyclohexylene, 1,4-phenylene, 2-fluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene or the like; and X1 is halogen, alkyl having 1 to 10 carbons or the like, and in the alkyl, at least one of hydrogen may be replaced by halogen.Type: ApplicationFiled: April 4, 2013Publication date: October 17, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Takahiro KUBO, Yasuyuki GOTOH
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Patent number: 8557142Abstract: The present invention relates to bistolans of the formula I where one or more of the radicals L1 to L3 denote an Rx, where Rx denotes cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl, and the other parameters are as defined in Claim 1. The invention also encompasses liquid-crystalline media which comprise the title compounds, to components for high-frequency technology which comprise these media, in particular phase shifters and microwave array antennae.Type: GrantFiled: September 1, 2010Date of Patent: October 15, 2013Assignee: Merck Patent GmbHInventors: Elvira Montenegro, Christian Jasper, Detlef Pauluth, Volker Reiffenrath, Atsutaka Manabe
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Publication number: 20130265508Abstract: A liquid crystal composition including a first neutral liquid crystal, a second neutral liquid crystal, a first polar liquid crystal, a second polar liquid crystal, and a third polar liquid crystal. A liquid crystal display device includes a backlight unit and a liquid crystal display panel to form an image using light provided by the backlight unit. The liquid crystal display panel includes a first base substrate, an opposing second base substrate, and the liquid crystal composition disposed between the first and second base substrates.Type: ApplicationFiled: August 9, 2012Publication date: October 10, 2013Applicant: Samsung Display Co., Ltd.Inventors: SiHeun KIM, Duck Jong Suh, Won-Gap Yoon, Jieun Jang, Jaeweon Hur
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Patent number: 8551358Abstract: The present invention relates to a liquid-crystalline medium, characterised in that it contains a polymerisable component (A) containing one more polymerisable compounds and a liquid-crystalline component (B) containing one more compounds of the general formula I in which R, rings A1 and A2, Z1, Z2, Y1, Y2, X0 and r are as defined in Claim 1.Type: GrantFiled: June 23, 2009Date of Patent: October 8, 2013Assignee: Merck Patent GmbHInventors: Seung-Eun Lee, Eun Young Kim, Dong-Mee Song, Kyung-Ah Park, Sang-Hyun Park, Eun-Kyu Lee
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Patent number: 8551359Abstract: The present invention relates to liquid-crystalline compounds having two fluorinated biphenyl units, a terminal trifluoromethyl or trifluoromethoxy group and a —CF2O— bridge between the two fluorinated biphenyl units. The invention also relates to liquid-crystalline media prepared therewith and to liquid-crystal display devices (LC displays) containing these media.Type: GrantFiled: April 14, 2011Date of Patent: October 8, 2013Assignee: Merck Patent GmbHInventors: Axel Jansen, Helmut Haensel, Malgorzata Rillich
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Publication number: 20130258267Abstract: The disclosure provides a method for fabricating a mesoporous oxide hollow particle and a liquid crystal device including the same. The liquid crystal device includes: a first substrate; a second substrate; and a liquid crystal composition formed between the first substrate and the second substrate, wherein the liquid crystal composition includes a liquid crystal molecule and a mesoporous oxide hollow particle.Type: ApplicationFiled: March 14, 2013Publication date: October 3, 2013Applicant: InnoLux CorporationInventors: Ching-Chao CHANG, Kuang-Yao Lo, Hong-Ping Lin
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Patent number: 8545720Abstract: The present invention relates to liquid-crystal (LC) media for use in LC displays of the PS (polymer stabilised) or PSA (polymer sustained alignment) type.Type: GrantFiled: November 26, 2009Date of Patent: October 1, 2013Assignee: MERCK PATENT GmbHInventors: Achim Goetz, Melanie Klasen-Memmer, Stephan Derow
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Patent number: 8545718Abstract: A wholly aromatic thermotropic liquid-crystal polyester resin composition, comprising 5 to 40 parts by volume of titanium oxide (B) and 5 to 40 parts by volume of barium sulfate (C) with respect to 100 parts by volume of a wholly aromatic thermotropic liquid-crystal polyester (A); wherein the total of the (B) component and the (C) component with respect to 100 parts by volume of the (A) component is 15 to 45 parts by volume.Type: GrantFiled: February 9, 2010Date of Patent: October 1, 2013Assignee: JX Nippon Oil & Energy CorporationInventors: Toshio Nakayama, Miyuki Shiraishi
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Patent number: 8537326Abstract: The invention provides a liquid crystal (LC) composition, a LC device such as a liquid crystal display and a phase modulator, and a method thereof. The liquid crystal composition comprises a liquid crystal and a polymer. The liquid crystal exhibits a macroscopic anisotropic property such as optical property in the absence of the polymer under a condition such as certain temperature. The polymer in the composition stabilizes the liquid crystal so that the liquid crystal exhibits a macroscopic isotropic property under the same condition, and the liquid crystal stabilized by the polymer exhibits the macroscopic anisotropic property when an electrical field is applied thereon. The devices exhibit technical merits such as large viewing angle, fast response time, better contrast ratio, easy manufacturability of large size display with improved dark state, easy manufacturing process with wider temperature region, and polarization-insensitivity of PSI phase modulator, among others.Type: GrantFiled: May 13, 2010Date of Patent: September 17, 2013Assignee: Kent State UniversityInventors: Deng-Ke Yang, Young Cheol Yang, Rui Bao
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Patent number: 8535562Abstract: Provided is a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a large elastic constant, a high stability to ultraviolet light and a high stability to heat, or having a suitable balance regarding at least two of the characteristics. Also provided is an AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition contains a specific compound having a large elastic constant as a first component, and a specific compound having a large dielectric anisotropy as a second component, and has a nematic phase, and a liquid crystal display device contains the composition.Type: GrantFiled: November 1, 2010Date of Patent: September 17, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Norikatsu Hattori, Takashi Hiraoka, Taketo Maeda, Masayuki Saito
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Patent number: 8535563Abstract: Provided is a liquid crystal composition that satisfies at least one of characteristics such as high maximum temperature of a nematic phase, low minimum temperature of a nematic phase, small viscosity, large optical anisotropy, large positive dielectric anisotropy, large specific resistance, high stability to ultraviolet light and high stability to heat, or that is suitably balanced between at least two of the characteristics; and provided is an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life, etc. The liquid crystal composition includes a specific four-ring compound having high maximum temperature as a first component, a specific three-ring compound having large optical anisotropy and large dielectric anisotropy as a second component, and a specific three-ring compound having large dielectric anisotropy as a third component, and has a nematic phase. The liquid crystal display device contains this composition.Type: GrantFiled: May 24, 2010Date of Patent: September 17, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Makoto Daigo, Yoshimasa Furusato
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Publication number: 20130235320Abstract: An embodiment of the disclosure provides a liquid crystal compound having the following formula: wherein A1, A2, and A3 are independently hydrogen, halogen, cyano, thiocyanato, or —OCF3; R1 is hydrogen, halogen, C1-C12 alkyl, C1-C12 alkoxy, C1-C12 haloalkly, C2-C12 alkenyl, or C2-C12 alkynyl; R2 and R3 are independently hydrogen, halogen, C1-C6 alkyl, C1-C6 haloalkly, cyano, thiocyanato, or —OCF3; and Z is a single bond, —O—, —CH2O—, —C(O)O—, —OCO—, —C(O)NH—, or —CH?CH—. In another embodiment, a liquid crystal display including the liquid crystal compound is also provided.Type: ApplicationFiled: April 26, 2013Publication date: September 12, 2013Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jian-Wen LIN, Chun-Ming WU, Shih-Hsien LIU, Kung-Lung CHENG, Chih-Lung CHIN
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Patent number: 8531644Abstract: According to one embodiment, an optical device includes an optically variable layer and first and second electrodes. The optically variable layer includes a material having dielectric anisotropy and a solvatochromic dye. The first and second electrodes are configured to apply a voltage to the optically variable layer. According to another embodiment, a display includes an optical device and a driving circuit. The optical device includes an optically variable layer and first and second electrodes. The optically variable layer includes a material having dielectric anisotropy and a solvatochromic dye. The first and second electrodes are configured to driving circuit is configured to put a drive voltage across the first and second electrodes.Type: GrantFiled: May 19, 2011Date of Patent: September 10, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Hajime Yamaguchi, Rei Hasegawa, Takashi Miyazaki, Hitoshi Nagato, Haruhi Oooka
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Patent number: 8518498Abstract: The present invention relates to a liquid crystal display, wherein arrangement of liquid crystal molecules thereof is controlled by using a monomer that is polymerized by ultraviolet rays to provide a pre-tilt. To prevent damage to organic material layers when irradiating ultraviolet rays to the monomer, a blocking film made of an ultraviolet absorbing agent is formed on or over at least one such layer.Type: GrantFiled: September 1, 2010Date of Patent: August 27, 2013Assignee: Samsung Display Co., Ltd.Inventors: Ki-Yong Song, Ki-Yeup Lee, Jae-Hong Kim, Yoon-Ho Kang, Yong-Hwan Kim
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Publication number: 20130215346Abstract: A liquid crystal display is provided. A liquid crystal display according to an exemplary embodiment of the present invention includes a first substrate, a second substrate facing the first substrate, and a liquid crystal layer interposed between the first substrate and the second substrate, wherein the liquid crystal layer includes liquid crystal molecules and nanoparticles including a hydrophobic group having a chain structure and a hydrophilic group.Type: ApplicationFiled: July 30, 2012Publication date: August 22, 2013Applicants: Pusan National University Industry-University Cooperation Foundation, SAMSUNG DISPLAY CO., LTD.Inventors: Gak Seok LEE, Hee Seop KIM, Ki Chul SHIN, Ki-Han KIM, Byung Wok PARK, Tae-Hoon YOON, Eun Young JEON, Ji-Hoon LEE
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Patent number: 8512821Abstract: The invention is to provide an AM device containing 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 dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two of the characteristics, and having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth, where the liquid crystal display device contains the liquid crystal composition that includes a specific compound having a large dielectric anisotropy as a first component and having positive dielectric anisotropy.Type: GrantFiled: May 6, 2010Date of Patent: August 20, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventor: Masayuki Saito
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Publication number: 20130208213Abstract: The present invention provides a liquid crystal display panel that suppresses the temperature dependence of transmittance-gradation characteristics and thus overcomes problems in which significant changes in transmittance-gradation characteristics are caused by the effects of environmental temperature and a light source to lead to the degradation of display performance, and a liquid crystal display device including the liquid crystal display panel. The liquid crystal display panel of the present invention includes a liquid crystal medium containing a plurality of liquid crystal compounds each having a negative dielectric constant anisotropy, the liquid crystal medium being held between a first substrate and a second substrate that are located opposite each other, and a side of each of the substrates in contact with the liquid crystal medium having vertical alignment properties for the liquid crystal compounds.Type: ApplicationFiled: September 13, 2011Publication date: August 15, 2013Applicant: Sharp Kabushiki KaishaInventors: Toshihiro Matsumoto, Yuichi Kawahira, Masayuki Kanehiro, Shoutarou Kawakami, Gou Sudou
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Patent number: 8506842Abstract: Provided is a liquid crystal composition that satisfies at least one of characteristics such as high maximum temperature of a nematic phase, low minimum temperature of a nematic phase, small viscosity, large optical anisotropy, large dielectric anisotropy, large specific resistance, high stability to ultraviolet light and high stability to heat, or that is suitably balanced between at least two of the characteristics; and provided is an AM device. The liquid crystal composition having a nematic phase includes a three-ring compound having a specific difluoromethyleneoxy bond having large dielectric anisotropy as a first component, a specific three-ring compound having large dielectric anisotropy as a second component, a specific four-ring compound having high maximum temperature as a third component, and a specific two-ring compound having high maximum temperature and small viscosity as a fourth component, and the liquid crystal display device contains this composition.Type: GrantFiled: May 10, 2010Date of Patent: August 13, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Takahiro Miyairi, Norikatsu Hattori
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Patent number: 8501038Abstract: The invention provides a liquid crystal compound having a high stability to heat, light or the like, a wide temperature range of a nematic phase, a small viscosity, a large optical anisotropy and a suitable elastic constant K33, and further having a suitable negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds.Type: GrantFiled: January 12, 2010Date of Patent: August 6, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventor: Masahide Kobayashi
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Patent number: 8496848Abstract: A birefringent film which comprises a compound having a proton-accepting group and a compound having a proton-donating group; and a birefringent film which comprises a compound having a proton-accepting group and a proton-donating group. The proton-accepting group and proton-donating group are combined with each other through intermolecular hydrogen bonding.Type: GrantFiled: April 24, 2006Date of Patent: July 30, 2013Assignees: Sumitomo Chemical Company, Limited, The University of TokyoInventors: Motohiro Yamahara, Takashi Kato
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Patent number: 8491814Abstract: The subject is to provide a liquid crystal composition that satisfies at least one characteristic of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a negatively large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding two characteristics thereof. The subject 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. The invention provides a liquid crystal composition having a negative dielectric anisotropy that includes a specific four-ring compound replaced by fluorine having a high maximum temperature as a first component, and a specific compound having a negatively large anisotropy as a second component, and provides a liquid crystal display device containing the composition.Type: GrantFiled: June 3, 2009Date of Patent: July 23, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Makoto Daigo, Hiroaki Fujita
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Patent number: 8486298Abstract: The invention relates to a liquid-crystalline medium comprising one or more compounds of the formula I in which R0 and X0 have the meanings indicated in Claim 1, and to the use thereof in electro-optical liquid-crystal displays.Type: GrantFiled: August 29, 2007Date of Patent: July 16, 2013Assignee: Merck Patent GmbHInventors: Harald Hirschmann, Christian Hock, Martina Weidner, Volker Reiffenrath
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Patent number: 8475679Abstract: 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 suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two of the characteristics; and is to provide a AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth, wherein the liquid crystal composition has negative dielectric anisotropy and includes a two-ring compound having a large negative dielectric anisotropy and having at least three fluorines or chlorines at the lateral positions as a first component, a specific compound having a large negative dielectric anisotropy as a second component, a specific compound having a small viscosity as a third component,Type: GrantFiled: September 24, 2009Date of Patent: July 2, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Yoshimasa Furusato, Norikatsu Hattori, Subaru Kawasaki
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Patent number: 8470198Abstract: 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: July 16, 2009Date of Patent: June 25, 2013Assignee: Merck Patent GmbHInventors: Kevin Adlem, Owain Llyr Parri
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Patent number: 8470199Abstract: The invention provides a liquid crystal compound having a high stability to heat, light or the like, a nematic phase in a wide temperature range, a small viscosity, a suitable optical anisotropy (especially, a relatively small optical anisotropy), a large elastic constant K33 and a suitable dielectric anisotropy (especially, a relatively large dielectric anisotropy), which is represented by formula (1-1). For example, R1 and R2 are alkyl having 1 to 10 carbons, alkenyl having 2 to 10 carbons or alkoxy having 1 to 9 carbons; the ring A1 and the ring A2 is 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene or 3,5-difluoro-1,4-phenylene; and m and n are 0, 1, 2 or 3, and the sum of m and n is 3.Type: GrantFiled: June 2, 2010Date of Patent: June 25, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventor: Masahide Kobayashi
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Patent number: 8471998Abstract: A liquid crystal display element includes a liquid crystal composition sandwiched between substrates, wherein at least two types of liquid crystal compositions which exhibit liquid crystal phase in different temperature ranges are contained within each one pixel, and each of the at least two types of liquid crystal compositions is sealed and isolated within each pixel.Type: GrantFiled: May 21, 2010Date of Patent: June 25, 2013Assignee: NLT Technologies, Ltd.Inventors: Yuko Ishii, Ken Sumiyoshi, Kenichi Takatori
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Publication number: 20130155368Abstract: A novel liquid crystal composition that can be used for a variety of liquid crystal devices is provided. A stable liquid crystal element that is driven at low voltage and that withstands physical impact is provided with the use of the novel liquid crystal composition. A highly reliable liquid crystal display device with low power consumption and high display quality is provided with the use of the liquid crystal element. The liquid crystal composition exhibits a blue phase and contains nematic liquid crystal, 1,4:3,6-dianhydro-2,5-bis[4-(n-hexyl-1-oxy)benzoic acid]sorbitol (abbreviation: ISO-(6OBA)2) represented by the structural formula (100) as a first chiral agent, and (4R,5R)-4,5-bis[hydroxy-di(phenanthren-9-yl)methyl]-2,2-dimethyl-1,3-dioxolane (abbreviation: R-DOL-Pn) represented by the structural formula (101) as a second chiral agent.Type: ApplicationFiled: December 12, 2012Publication date: June 20, 2013Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventor: Semiconductor Energy Laboratory Co., Ltd.
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Patent number: 8454856Abstract: A liquid crystal composition is provided that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a low viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or is properly balanced regarding at least two characteristics. An AM device is provided that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life, and so forth. The liquid crystal composition has a nematic phase, wherein the first component contains a specific five rings compound having a large optical anisotropy and a large dielectric anisotropy, the second component contains a specific compound having a low viscosity. The liquid crystal display device contains the liquid crystal composition having a nematic phase and the composition thereof.Type: GrantFiled: August 25, 2008Date of Patent: June 4, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Shigeru Kibe, Masayuki Saito
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Publication number: 20130135574Abstract: A liquid crystal compound of Formula (I) is provided. In Formula (I), A is benzene, naphthalene, pyridine, furan, thiophene or a single bond, D is benzene, naphthalene, pyridine, furan, thiophene or a single bond, R1 and R2 are C1-10 alkyl, C1-10 alkoxy, fluoro or trifluoro methyl, E is benzene, naphthalene, pyridine, furan, thiophene or a single bond, W is —CO—O—, —O—CO—, —O—, —CH2—CH2—, —CH?CH—, —CH2—O— or a single bond, Z is benzene, naphthalene, pyridine, furan, thiophene or a single bond, Y is hydrogen, methyl, ethyl or propyl, m is 0, 1 or 2, p is 0, 1 or 2, r is 0, 1 or 2, q is 0, 1 or 2, and n is 0, 1, 2 or 3. The invention also provides a liquid crystal display and photochromic material including the compound.Type: ApplicationFiled: December 29, 2011Publication date: May 30, 2013Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yi-Rong WANG, Chih-Lung CHIN, Wan-Chi CHEN, Kung-Lung CHENG, Shih-Hsien LIU
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Publication number: 20130135542Abstract: A phase difference layer laminated body used in a three-dimensional liquid crystal display device, wherein unit cells are divided into groups for left and right eyes, which are given different degrees of polarization, thereby creating a three-dimensional image, further wherein the phase difference layer laminated body has a base material having orientability, and a phase difference layer made of a liquid crystal material that can form a nematic phase and formed in a pattern with two different portions, and the liquid crystal material in each of two different portions is oriented to have different refractive index anisotropy each other that conforms to the two different degrees of polarization and fixed as it is.Type: ApplicationFiled: December 27, 2012Publication date: May 30, 2013Applicant: DAI NIPPON PRINTING CO., LTD.Inventor: Dai Nippon Printing Co., Ltd.
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Patent number: 8444878Abstract: Subject The subject 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 suitable optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding two or more characteristics. The subject 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.Type: GrantFiled: August 3, 2010Date of Patent: May 21, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Hiroaki Fujita, Makoto Daigo, Hiroshi Endou
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Patent number: 8444877Abstract: Provided are liquid crystal compounds and mixtures incorporating the same. The liquid crystal compounds of the invention generally comprise a terminal cyclopentene group, along with at least two other ring groups.Type: GrantFiled: January 15, 2009Date of Patent: May 21, 2013Assignee: VVI Bright China Ltd.Inventors: Xinhua Chen, R. Amaranatha Reddy
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Patent number: 8440102Abstract: An object is to provide a liquid crystal composition which exhibits a blue phase in a wide temperature range. Another object is to provide a liquid crystal composition which exhibits a blue phase, with which high contrast can be provided, in a liquid crystal display device. A liquid crystal composition which exhibits a blue phase includes: a nematic liquid crystal including a compound represented by a structural formula (100) (PPEP-5FCNF (abbreviation)); and a chiral agent. In a liquid crystal display device, a liquid crystal layer is formed using the liquid crystal composition including a nematic liquid crystal including a compound represented by a structural formula (100) (PPEP-5FCNF (abbreviation)) and a chiral agent, and the liquid crystal composition exhibits a blue phase.Type: GrantFiled: May 10, 2011Date of Patent: May 14, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Tomohiro Tamura, Tetsuji Ishitani, Daisuke Kubota, Akio Yamashita, Sachiko Kawakami, Yuko Kawata
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Patent number: 8440101Abstract: Provided are a liquid crystal composition containing, as a first component, a polymerizable compound represented by general formula (I): R11—S11-L11-(M11-L12)m-M12-L13-(M13-L14)n-Z11??(I) and a liquid crystal display element using the liquid crystal composition.Type: GrantFiled: January 31, 2011Date of Patent: May 14, 2013Assignee: DIC CorporationInventors: Takeshi Kuriyama, Shinichi Hirata, Shotaro Kawakami
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Patent number: 8435423Abstract: The subject 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 suitable optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light, a high stability to heat and a large elastic constant, or that is suitably balanced regarding at least two of the characteristics. The subject 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.Type: GrantFiled: November 30, 2010Date of Patent: May 7, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventor: Hiroaki Fujita
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Patent number: 8431039Abstract: The present invention relates to compounds represented by the following Formula Ia, in which each R1-R6 can in each case be independently selected from hydrogen or hydrocarbyl (e.g., methyl); R7 is a multivalent linking group, such as L1 is a divalent linking group, such as a bond or divalent optionally substituted hydrocarbyl; each L2 independently represents a flexible segment, such as divalent linear or branched C1-C25 alkyl; each L3 independently represents a rigid segment including, for example, optionally substituted phenylen-1,4-diyl groups; t is from 1 to 4; m and p are each independently from 0 to 4 for each t, provided that the sum of m and p is at least 1 for each t; and E can be hydrogen or optionally substituted hydrocarbyl. The present invention also relates to compositions, such as liquid crystal compositions, and articles, such as optical elements, that include the compound represented by Formula Ia.Type: GrantFiled: August 8, 2011Date of Patent: April 30, 2013Assignee: Transitions Optical, Inc.Inventors: Xiao-Man Dai, Ruisong Xu, Meng He, Anil Kumar, Rachael L. Yoest, Chenguang Li
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Publication number: 20130100394Abstract: An embodiment of the invention provides a liquid crystal compound having the following formula: wherein A1, A2, and A3 are independently hydrogen, halogen, cyano, thiocyanato, or —OCF3; R1 is hydrogen, halogen, C1-C12 alkyl, C1-C12 alkoxy, C1-C12 haloalkly, C2-C12 alkenyl, or C2-C12 alkynyl; R2 is hydrogen, halogen, C1-C6 alkyl, C1-C6 haloalkly, cyano, or —OCF3; and Z is —O—, —CH2O—, —C(O)O—, —OCO—, —C(O)NH—, —CH?CH—, or —C?C—. In another embodiment, a liquid crystal display including the liquid crystal compound is also provided.Type: ApplicationFiled: December 29, 2011Publication date: April 25, 2013Inventors: Jian-Wen Lin, Chun-Ming Wu, Shih-Hsien Liu, Kung-Lung Cheng, Chih-Lung Chin
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Patent number: 8425800Abstract: Provided are a liquid crystal composition containing, as a first component, a polymerizable compound represented by general formula (I): (Z11)m11-M11-(L11-M12)n11-COO-(M13-L12)n12-M14-(Z12)m12??(I) and a liquid crystal display element using the liquid crystal composition.Type: GrantFiled: April 15, 2011Date of Patent: April 23, 2013Assignee: DIC CorporationInventors: Shinichi Hirata, Takeshi Kuriyama, Shotaro Kawakami
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Patent number: 8419972Abstract: A polymerizable liquid crystal composition is provided that is excellent in UV curing characteristics in the air and is excellent in orientation homogeneity, and a polymer film as a selective reflection film is provided that is obtained by orienting and polymerizing the composition on a supporting substrate. The liquid crystal composition contains a compound (1), a compound (2), a compound (3), a compound selected from a group of compounds represented by the formulae (4) to (6), and a surfactant. In the following formulae Y1 to Y4 and Y6 are each alkylene, A2, A3, A41, A42, A51, A52 and A6 are each a cyclic group, Z2 to Z4 and Z6 are each a bonding group, P4 and P6 are each an integer of from 0 to 3, R2, R31 and R32 are each hydrogen, halogen or alkyl, and Q1 and Q2 are each a polymerizable group.Type: GrantFiled: November 6, 2009Date of Patent: April 16, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Yoshiharu Hirai, Kazumi Hagihara
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Patent number: 8419973Abstract: A polymerizable liquid crystal composition is provided that can contains a mixture of polymerizable compounds containing a compound represented by the formula (1-1), a compound represented by the formula (2), a compound represented by the formula (3-1) and a compound represented by the formula (4), and a amine silane coupling agent. The composition can form a polymerizable liquid crystal layer exhibiting a uniform homeotropic alignment by coating the composition on a supporting substrate, independently from the kind of the supporting substrate without a special alignment film. Examples of each of the components are shown below, in which ring T represents triptycen-1,4-diyl.Type: GrantFiled: December 16, 2009Date of Patent: April 16, 2013Assignees: JNC Corporation, Chisso Petrochemical CorporationInventor: Yoshiharu Hirai
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Publication number: 20130083283Abstract: A manufacturing method of blue phase liquid crystal (BPLC), comprising steps of: a temperature control step which controls a temperature of a liquid crystal (LC) mixture within a range of a coexistence temperature of the blue phase and the isotropic phase; a temperature descending step which descends the temperature of the LC mixture to an operation temperature of the blue phase, wherein the operation temperature of the blue phase is higher than the phase transition temperature of the blue phase and the lower temperature phase; and a repeating step which repeats the temperature control step and the temperature descending step.Type: ApplicationFiled: April 18, 2012Publication date: April 4, 2013Applicants: CHIMEI INNOLUX CORPORATION, INNOCOM TECHNOLOGY(SHENZHEN) CO., LTD.Inventors: Hung-Shan CHEN, Chun-Hung WU, Yi-Hsin LIN, Hsu-Kuan HSU
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Patent number: 8409469Abstract: The instant invention relates to mesogenic systems comprising a) a polymeric component, component A, obtained or obtainable from polymerisation of a precursor comprising one or more mesogenic mono-reactive compounds, one or more di-reactive compounds, which optionally are also mesogenic compounds and optionally a photo-initiator and a low molecular weight component, component B, comprising one or more mono-reactive, mesogenic compounds, one or more mesogenic compounds and one or more chiral dopants, exhibiting a Blue Phase, as well as to the use of these systems in deices and to these devices.Type: GrantFiled: September 23, 2011Date of Patent: April 2, 2013Assignee: Merck Patent GmbHInventors: Cecile Schott, John Patrick, Kevin Adlem, Louise Diane Farrand, Georg Bernatz, Achim Goetz, Peter Best, Herbert Plach
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Patent number: 8404150Abstract: The present invention relates to dielectrically positive liquid-crystalline media comprising one or more compounds of the formula I in which the parameters have the meaning indicated in the specification, and optionally one or more compounds selected from the group of the compounds of the formulae II and III in which the parameters have the meaning indicated in the specification, and optionally one or more compounds of the formula IV in which the parameters have the meaning indicated in the specification, and to liquid-crystal displays containing these media, especially to active-matrix displays and in particular to TN, IPS and FFS displays.Type: GrantFiled: January 23, 2009Date of Patent: March 26, 2013Assignee: Merck Patent GmbHInventors: Michael Wittek, Markus Czanta, Atsutaka Manabe, Lars Lietzau, Marcus Reuter, Brigitte Schuler, Elisabeth Meyer
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Patent number: 8404151Abstract: 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 suitable optical anisotropy, a large dielectric anisotropy, a large specific resistance, a large elastic constant, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced between at least two of the characteristics; and 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.Type: GrantFiled: June 13, 2011Date of Patent: March 26, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Hiroaki Fujita, Norikatsu Hattori
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Patent number: 8398886Abstract: The invention provides a liquid crystal composition that includes a specific compound having a negatively large dielectric anisotropy as a first component and a specific compound having a negatively large dielectric anisotropy as a second component, that optionally includes a specific compound having a high maximum temperature or a small viscosity as a third component and a specific compound having a negatively large dielectric anisotropy as a fourth component, and that has negative dielectric anisotropy, and provides a liquid crystal display device containing this composition.Type: GrantFiled: August 20, 2010Date of Patent: March 19, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Takayoshi Yanai, Masayuki Saito
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Publication number: 20130063693Abstract: An embodiment of the invention provides a chiral dopant having the following formula: wherein X1 and X2 are independently wherein F is fluorine, m is a positive integer from 1 to 8, and n is a positive integer from 1 to 4; Y1 and Y2 are independently —O—, —CH2CH2—, —CH?CH—, —C(O)O—, or —CH2O—; and R1, R2 are independently substituted or non-substituted C1-C10 linear alkyl, wherein substituents of the substituted C1-C10 linear alkyl are independently —F, —Cl, —OCF3, —NCS, or —CN, wherein a number of backbone carbon atoms in each of —Y1R1 and —Y2R2 is larger than 3.Type: ApplicationFiled: February 1, 2012Publication date: March 14, 2013Inventors: Chien-Hsien CHENG, Kuo-Chang WANG, Chun-Ming WU, Kung-Lung CHENG, Shih-Hsien LIU, Chih-Lung CHIN
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Patent number: 8394294Abstract: The invention provides a liquid crystal compound which has stability to heat, light and so forth, a nematic phase in a wide temperature range, a small viscosity, a large optical anisotropy, and a suitable elastic constant K33, and further has a suitable and negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. Moreover, the invention provides a liquid crystal composition comprising this liquid crystal compound and a liquid crystal display device containing this liquid crystal composition. A liquid crystal compound represented by formula (a): for example, R1 and R2 are alkyl having 1 to 10 carbons, alkenyl having 2 to 10 carbons or alkoxy having 1 to 9 carbons; ring A1 and ring A2 are 1,4-phenylene or trans-1,4-cyclohexylene; L1 and L2 are hydrogen or fluorine, and at least one of L1 and L2 is fluorine; and Z1 and Z2 are a single bond, —(CH2)2—, —CH?CH—, —CH2O— or —OCH2—.Type: GrantFiled: June 2, 2009Date of Patent: March 12, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventor: Masahide Kobayashi
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Patent number: 8394292Abstract: The present invention relates to dielectrically positive liquid-crystalline media comprising a dielectrically neutral or slightly positive component, component A, comprising one or more dielectrically neutral or slightly positive compounds of the formula I in which the parameters have the meaning indicated in the specification, and a dielectrically positive component, component B, comprising one or more dielectrically positive compounds, and optionally a second dielectrically neutral component, component C, and to liquid-crystal displays containing these media, especially active-matrix displays and in particular TN, IPS and FFS displays.Type: GrantFiled: January 15, 2009Date of Patent: March 12, 2013Assignee: Merck Patent Gesellschaft mit beschränkter HaftungInventors: Michael Wittek, Brigitte Schuler, Volker Reiffenrath