Including Fully Saturated Ring Patents (Class 252/299.63)
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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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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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Patent number: 8741176Abstract: A liquid crystal compound with high optical anisotropy is provided. The liquid crystal compound is represented by formula (I), wherein each of R1 and R2 represents an alkyl group having 1 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms; the alkyl group and the alkenyl group are unsubstituted or substituted by —O—, —CO—, or —COO— groups; each of X1, X2, X3, and X4 represents hydrogen or fluorine, and at least one of X1, X2, X3, and X4 is fluorine; m is 1, 2, or 3; n is 0, 1, or 2, and 2?m+n?3.Type: GrantFiled: March 9, 2012Date of Patent: June 3, 2014Assignee: Daxin Materials CorporationInventors: Chun-Chih Wang, Chin-Yen Chang, Yu-Ying Hsieh
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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: 20140138582Abstract: 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 negative 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 alkyl having 1 to 10 carbons, alkoxy having 1 to 9 carbons or alkenyl having 2 to 10 carbons; R2 is alkyl having 1 to 10 carbons, alkoxy having 1 to 9 carbons or alkenyl having 3 to 10 carbons; ring A1 is 1,4-cyclohexylene or 1,4-phenylene; ring A2 is 1,4-cyclohexylene, 1,4-phenylene or 2,3-difluoro-1,4-phenylene; Z1 and Z2 are single bonds; L1 and L2 are fluorine; and 1 is 0, 1 or 2.Type: ApplicationFiled: November 15, 2013Publication date: May 22, 2014Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Yasuyuki GOTOH, Masahide KOBAYASHI
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Publication number: 20140139786Abstract: The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PSA (“polymer sustained alignment”) type.Type: ApplicationFiled: April 12, 2013Publication date: May 22, 2014Applicant: Merck Patent GmbHInventors: Martin ENGEL, Andreas TAUGERBECK, Constanze BROCKE, Helmut HAENSEL, Stephan DEROW, Julian VOGT
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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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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: 8715528Abstract: The invention discloses a reflective liquid crystal material formulation, wherein a liquid crystal component of high dielectric anisotropy is employed to lower the driving voltage. By modulating the addition ratio of the high dielectric anisotropy components, reflective liquid crystal compositions of different reflective colors can be driven by a single driving voltage. The invention also provides a reflective bistable display using the above formulation.Type: GrantFiled: January 13, 2010Date of Patent: May 6, 2014Assignee: Industrial Technology Research InstituteInventors: An-Cheng Chen, Pei-Chen Huang, Chien-Hsien Cheng, Chun-Ming Wu, Shih-Hsien Jassy Liu, Kung-Lung Cheng
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Publication number: 20140118672Abstract: The present invention provides a polymerizable monomer, a liquid crystal composition containing the polymerizable monomer and a vertical alignment liquid crystal panel. The polymerizable monomer which the present invention provides may generate free radicals more easily under the UV exposure, so as to solve the RM residue due to the improvement of the curing ability of the RM and thus improve the image sticking issue of the liquid crystal panel.Type: ApplicationFiled: November 14, 2012Publication date: May 1, 2014Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Chung-Ching Hsieh
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Publication number: 20140110630Abstract: The invention relates to compounds of the formula I, and to a liquid-crystalline medium, preferably having a nematic phase and negative dielectric anisotropy, which comprises a) one or more compounds of the formula I and b) one or more compounds of the formula II 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, FFS or IPS effect, to displays of this type which contain a liquid-crystalline medium of this type, and to the use of the compounds of the formula I for the stabilization of a liquid-crystalline medium which comprises one or more compounds of the formula II.Type: ApplicationFiled: October 17, 2013Publication date: April 24, 2014Inventors: Mark GOEBEL, Eveline BARON, Rocco FORTTE, Detlef PAULUTH
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Publication number: 20140111730Abstract: The invention relates to compounds of the formula I, and to a liquid-crystalline medium, preferably having a nematic phase and negative dielectric anisotropy, which comprises a) one or more compounds of the formula I and b) one or more compounds of the formula III-O 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, FFS or IPS effect, to displays of this type which contain a liquid-crystalline medium of this type, and to the use of the compounds of the formula I for the stabilization of a liquid-crystalline medium which comprises one or more compounds of the formula III-O.Type: ApplicationFiled: October 18, 2013Publication date: April 24, 2014Applicant: MERCK PATENT GmbHInventors: Mark GOEBEL, Eveline BARON, Rocco FORTTE, Detlef PAULUTH
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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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Publication number: 20140103257Abstract: A liquid crystal composition includes a liquid crystal compound having a formula (I), where R1 and R2 are independently selected from the group consisting of H, C1-C10 alkyl, C2-C10 alkenyl, C1-C10 alkoxyl, C2-C10 alkenyloxy, C1-C10 ether, C1-C10 aldehyde, C1-C10 ketone, and C1-C10 ester; A is selected from the group consisting of and X1, X2, X3 and X4 are independently selected from the group consisting of H, halogen group, —CF3, —CHF2, —CH2F, —OCF3, —OCHF2 and —OCH2F, at least one of X1, X2, X3 and X4 being halogen group, —CF3, —CHF2, —CH2F, —OCF3, —OCHF2 or —OCH2F.Type: ApplicationFiled: October 8, 2013Publication date: April 17, 2014Applicant: DAXIN MATERIALS CORP.Inventors: Chun-Chih WANG, Yu-Ying HSIEH, Hui-Ju YU
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Patent number: 8697200Abstract: The present invention relates to polymerizable compounds, to processes and intermediates for the preparation thereof, and to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, especially in LC displays of the PS (polymer-stabilized) and PSA (polymer-sustained alignment) type.Type: GrantFiled: March 4, 2009Date of Patent: April 15, 2014Assignee: Merck Patent GmbHInventors: Achim Goetz, Erdal Durmaz, Malgorzata Rillich, Andreas Taugerbeck
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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: 20140098314Abstract: 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: ApplicationFiled: November 14, 2012Publication date: April 10, 2014Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Xinhui Zhong, Kuancheng Lee
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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: 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
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Patent number: 8687259Abstract: The invention relates to a polymerizable LC material with negative optical dispersion, a polymer film with negative optical dispersion obtainable from such a material, and the use of the polymerizable LC material and polymer film in optical, electrooptical, electronic, semiconducting or luminescent components or devices.Type: GrantFiled: October 6, 2010Date of Patent: April 1, 2014Assignee: Merck Patent GmbHInventors: Kevin Adlem, Owain Llyr Parri, David Wilkes, Patricia Eileen Saxton
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Patent number: 8685274Abstract: The invention provides a liquid crystal compound that has an excellent compatibility with other liquid crystal compounds and also has at least one of characteristics such as a high stability to heat, light or the like, a suitable refractive index anisotropy (?n), a low threshold voltage and a suitable dielectric anisotropy (??). A compound represented by formula (1). For example, R1 is alkyl having 1 to 10 carbons, R2 is halogen or alkenyl having 2 to 10 carbons; the ring A1, the ring A2 and the ring A3 are 1,4-cyclohexylene or 1,4-phenylene; Z1, Z2 and Z3 are a single bond or alkylene having 1 to 4 carbons; G is —CH2— or —O—; and m is 1, and n and p is 0 or 1.Type: GrantFiled: June 10, 2011Date of Patent: April 1, 2014Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Tokifumi Masukawa, Yasuyuki Goto, Tomohiro Yano
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Publication number: 20140085572Abstract: 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: March 27, 2014Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Xing Feng, Xinhui Zhong
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Publication number: 20140085591Abstract: 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 two or more polymerizable monomers which will polymerize under UV irradiation. The liquid crystal material comprises an alkenyl compound which is stable to the polymerization reaction during the polymerization of the polymerizable monomers. The weight percentage of the polymerizable monomers accounts for 0.1% to 1% of the total mixture for liquid crystal medium.Type: ApplicationFiled: October 16, 2012Publication date: March 27, 2014Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Xing Feng, Yubo Gu, Liuyang Yang, Xinhui Zhong
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Publication number: 20140085593Abstract: 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 two polymerizable monomers which will polymerize under UV irradiation. The weight percentage of the polymerizable monomers accounts for 0.1% to 1% of the total mixture for liquid crystal medium.Type: ApplicationFiled: October 16, 2012Publication date: March 27, 2014Applicant: Shenzhen China Star Optoelectronics Technology Co., LtdInventors: Xing Feng, Xinhui Zhong
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Publication number: 20140085588Abstract: 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 and a polymerizable monomer. The liquid crystal material comprises an alkenyl compound which is stable to the polymerization reaction during the polymerization of the polymerizable monomer. The polymerizable monomer comprises two or more monomers, wherein it comprises at least one fast reaction type of monomer and at least one strong anchoring force type of monomer. The liquid crystal display comprises: 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.Type: ApplicationFiled: October 16, 2012Publication date: March 27, 2014Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.Inventors: Xing Feng, Yubo Gu, Liuyang Yang, Xinhui Zhong
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Publication number: 20140085596Abstract: 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: March 27, 2014Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Xing Feng, Xinhui Zhong
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Publication number: 20140085590Abstract: 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: March 27, 2014Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.Inventors: Xing Feng, Xinhui Zhong
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Publication number: 20140084210Abstract: A liquid crystal composition is described, which has a nematic phase, contains a specific compound having a high maximum temperature or a large dielectric anisotropy as a first component and a specific compound having a large dielectric anisotropy as a second component, and may also contain a specific compound having a high maximum temperature or a small viscosity as a third component and a specific compound having a high maximum temperature or a large dielectric anisotropy as a fourth component. An active-matrix (AM) liquid crystal display device including the liquid crystal composition is also described.Type: ApplicationFiled: September 13, 2013Publication date: March 27, 2014Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: TAKAYOSHI YANAI, YASUYUKI GOTOH, CHIKAHIDE KANADANI, HIROKI OOKAWA
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Publication number: 20140085595Abstract: 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 two or more polymerizable monomers which will polymerize under UV irradiation. The weight percentage of the polymerizable monomers accounts for 0.1% to 1% of the total mixture for liquid crystal medium.Type: ApplicationFiled: October 16, 2012Publication date: March 27, 2014Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.Inventors: Xing Feng, Xinhui Zhong
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Publication number: 20140084211Abstract: 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 only one 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.Type: ApplicationFiled: October 16, 2012Publication date: March 27, 2014Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Xing Feng, Xinhui Zhong
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Publication number: 20140077131Abstract: The invention provides a liquid crystal compound represented by formula (1): wherein, in formula (I), for example, R1 is fluorine, chlorine, or alkyl having 1 to 10 carbons, and in the alkyl, at least one of —CH2— may be replaced by —O—, —S—, —CO— or —SiH2—, and at least one of —(CH2)2— may be replaced by —CH?CH— or —C?C—. The compound has a low threshold voltage and excellent compatibility with other liquid crystal compounds, and further excellent general physical properties required for the compound. The invention also provides a liquid crystal composition containing at least one of the compounds and having excellent properties, and a liquid crystal display device including the composition, and having a wide usable temperature range, a short response time, a large contrast ratio and a low driving voltage, and therefore can be used for a liquid crystal projector and a liquid crystal television.Type: ApplicationFiled: September 10, 2013Publication date: March 20, 2014Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventor: Yasuyuki SASADA
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Patent number: 8673411Abstract: Providing a liquid crystal composition satisfies at least one of characteristics like a high maximum temperature of a nematic phase, a low minimum temperature of the 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. Providing a liquid crystal composition has a suitable balance regarding at least two of the characteristics. Providing an AM device 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 negative dielectric anisotropy and contains a specific compound having a large negative dielectric anisotropy as a first component and a specific three-ring compound having a large optical anisotropy and a negative dielectric anisotropy as a second component, and a liquid crystal display device contains the composition.Type: GrantFiled: August 16, 2010Date of Patent: March 18, 2014Assignees: JNC Corporation, JNC Petrochemical CorporationInventor: Masayuki Saito
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Publication number: 20140070142Abstract: A nematic liquid crystal composition according to the invention is used for a liquid crystal display element for an active matrix drive for TV applications or the like for which a quick switching and a wide viewing angle are required. The liquid crystal composition has a negative dielectric anisotropy having a large absolute value and also has a sufficiently low viscosity. Therefore, the liquid crystal composition has excellent characteristic properties, that is, a quick switching, good display quality and a suppressed display defect, and is therefore suitable as a practical liquid crystal composition. Further, a liquid crystal display element produced using the liquid crystal composition can be used favorably as a liquid crystal display element of a VA type or the like.Type: ApplicationFiled: April 4, 2012Publication date: March 13, 2014Applicant: DIC CORPORATIONInventors: Gou Sudo, Shotaro Kawakami
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Publication number: 20140061534Abstract: 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: ApplicationFiled: August 30, 2013Publication date: March 6, 2014Inventors: Mark GOEBEL, Harald HIRSCHMANN, Lars LIETZAU, Volker REIFFENRATH, Sabine SCHOEN, Brigitte SCHULER
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Publication number: 20140061536Abstract: The present invention relates to compounds of the formula I to the use thereof for high-frequency components, to liquid-crystalline media comprising the compounds, and to high-frequency components, in particular antennae, especially for the gigahertz range, comprising these media. The liquid-crystalline media serve, for example, for the phase shifting of microwaves for tuneable “phased-array” antennae.Type: ApplicationFiled: March 28, 2012Publication date: March 6, 2014Applicant: MERCK PATENT GmbHInventors: Volker Reiffenrath, Christian Jasper, Detlef Pauluth, Atsutaka Manabe
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Publication number: 20140061535Abstract: A liquid crystal composition in which deterioration of viscosity that is associated with an increase in ?n and an increase in ?? is suppressed, and a liquid crystal display element having a markedly improved response speed by using the relevant liquid crystal composition. The liquid crystal composition has a large value of ?n and negative ??, and have large absolute values thereof. Also, the liquid crystal composition has low ?, has excellent liquid crystal properties, and exhibits a liquid crystal phase that is stable in a wide temperature range. Furthermore, since the liquid crystal composition is chemically stable to heat, light, water and the like, the liquid crystal composition is capable of low voltage driving, and is practically useful and highly reliable.Type: ApplicationFiled: April 5, 2012Publication date: March 6, 2014Applicant: DIC CORPORATIONInventors: Haruki Ohishi, Shirou Taniguchi, Kunihiko Kotani, Kazunori Maruyama
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Publication number: 20140065323Abstract: A polymerizable monomer adopted to a display panel is represented as following chemical formula: wherein, m?0; “Z” is selected from oxygen, sulfur, carbonyl, caroboxyl, methyoxy, methylthio, thio, ethenylcarbonyl, carbonylethenyl, difluoromethoxy, difluoro methylthio, ethyl, difluoroethane, 1,2 difluoroethane, vinylene, difluoroethenylene, ethynyl, or single bond. “X1” and “X2” are independently selected from oxygen, sulfur, methyoxy, carbonyl, caroboxyl, -carbamoyl, methylthio, ethenylcarbonyl, carbonylethenyl, or single bond. “Sp1” and “Sp2” are independently a spacer or single bond. “P1” and “P2” are independently a polymerizable group.Type: ApplicationFiled: October 31, 2013Publication date: March 6, 2014Applicant: AU OPTRONICS CORP.Inventors: Chung-Ching HSIEH, Yang-Chu LIN, Hsi-Chien LIN, Te-Sheng CHEN
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Patent number: 8663497Abstract: Disclosed is a liquid crystal composition formed by including a polymerizable compound represented by general formula (I) in a nematic liquid crystal composition with negative dielectric anisotropy (??). In the formula, ring C1 represents a benzene-1,2,4-triyl group, or the like; rings C2 to C4 represent a 1,4-phenylene group, a naphthalene-2,6-diyl group, or the like; M1 to M3 represent a hydrogen atom or a methyl group; Z1 and Z2 are a direct coupling, -L1-, -L1O—, -L1O—CO—, or the like; Z6 is a direct coupling, -L2-, -OL2-, —O—COL2-, or the like; at least one of Z1, Z2, and Z6 is not a direct coupling; L1 and L2 represent a C1-10 alkylene group; Z3 to Z5 represent a direct coupling, an ester bond, or the like; and p, q, and r are 0 or 1, wherein 1?p+q+r?3.Type: GrantFiled: October 19, 2010Date of Patent: March 4, 2014Assignee: Adeka CorporationInventors: Ken Matsumoto, Masatomi Irisawa
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Publication number: 20140054499Abstract: The invention provides a liquid crystal compound that has an excellent compatibility with other liquid crystal compounds and also has at least one of characteristics such as a high stability to heat, light or the like, a suitable refractive index anisotropy (?n), a low threshold voltage and a suitable dielectric anisotropy (??). A compound represented by formula (1). For example, R1 is alkyl having 1 to 10 carbons, R2 is halogen or alkenyl having 2 to 10 carbons; the ring A1, the ring A2 and the ring A3 are 1,4-cyclohexylene or 1,4-phenylene; Z1, Z2 and Z3 are a single bond or alkylene having 1 to 4 carbons; G is —CH2— or —O—; and m is 1, and n and p is 0 or 1.Type: ApplicationFiled: October 24, 2013Publication date: February 27, 2014Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Tokifumi MASUKAWA, Yasuyuki GOTO, Tomohiro YANO
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Patent number: 8658060Abstract: 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: GrantFiled: August 9, 2012Date of Patent: February 25, 2014Assignee: Samsung Display Co., Ltd.Inventors: SiHeun Kim, Duck Jong Suh, Won-Gap Yoon, Jieun Jang, Jaeweon Hur
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Publication number: 20140049743Abstract: To provide a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature of a nematic phase, low minimum temperature thereof, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy and specific resistance, high stability to ultraviolet light and heat; a liquid crystal composition having a suitable balance regarding at least two thereof; and an AM device having short response time, large voltage holding ratio and contrast ratio, long life and so forth. The liquid crystal composition has nematic phase, and contains as a first component a specific compound having large dielectric anisotropy and as a second component a specific compound having small viscosity, and may contain as a third component a specific compound having high maximum temperature or large dielectric anisotropy, and as a fourth component a specific compound having high maximum temperature or small viscosity, and a liquid crystal display device includes the composition.Type: ApplicationFiled: July 16, 2013Publication date: February 20, 2014Inventors: YOSHIMASA FURUSATO, HIROYUKI TANAKA
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Patent number: 8652353Abstract: A novel liquid crystalline carbonate and the mixture containing the same: wherein R3 is an alkyl (H2n+1Cn) or an alkenyl (H2n?1Cn) group, each of 1 to 12 carbon atoms, the ring A is laterally unsubstituted benzene or pyridine or pyrimidine or trans-substituted cyclohexane ring, symbol r is 0 to 2; the lateral substituents: X2, X3, X4 and X5 in the benzene rings represent independently hydrogen or fluorine or chlorine atoms, X1 is hydrogen or fluorine atom and simultaneously at least one of the substituents: X2, X3 and X4 is fluorine or chlorine atoms, Y is an alkyl or an alkyloxy or an alkenyl or an alkenyloxy group, each of 1 to 12 carbon atoms or hydrogen or fluorine or chlorine atom or NCS group are described.Type: GrantFiled: July 19, 2012Date of Patent: February 18, 2014Assignee: Wojskowa Akademia TechnicznaInventors: Roman Slawomir Dabrowski, Przemyslaw Kula, Artur Choluj, Jerzy Dziaduszek, Katarzyna Garbat
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Publication number: 20140043579Abstract: 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 between at least two of the characteristics, is described. The liquid crystal composition includes a compound having three or more polymerizable groups as a first component and a compound having one or two polymerizable groups as a second component in a suitable ratio, and that may include a specific compound having a large negative dielectric anisotropy and a low minimum temperature as a third component or a specific compound having a small viscosity or a high maximum temperature as a fourth component.Type: ApplicationFiled: August 6, 2013Publication date: February 13, 2014Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: YOSHIMASA FURUSATO, SUBARU KAWASAKI, ERIKO KURIHARA
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Patent number: 8647530Abstract: A liquid crystal composition containing a polymerizable compound contains one or two or more polymerizable compounds having the general formula (I) as a first component and one or two or more non-polymerizable liquid crystal compounds having an alkenyl group as a second component. A liquid crystal display element is manufactured using the liquid crystal composition.Type: GrantFiled: May 18, 2012Date of Patent: February 11, 2014Assignee: DIC CorporationInventors: Takeshi Kuriyama, Kazuki Kurisawa, Shotaro Kawakami
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Publication number: 20140034877Abstract: To provide 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, small viscosity, suitable optical anisotropy, large dielectric anisotropy, large specific resistance, high stability to ultraviolet light, high stability to heat and a large elastic constant, or is to provide a liquid crystal composition having a suitable balance regarding at least two of the characteristics; an AM device having short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition has the nematic phase and contains a compound having a difluoromethyleneoxy group and a trifluoromethyl group and having large dielectric anisotropy as a first component, and a specific compound having small dielectric anisotropy as a second component. The liquid crystal display device contains the composition.Type: ApplicationFiled: April 4, 2012Publication date: February 6, 2014Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Hiroaki Fujita, Takashi Hiraoka, Taketo Maeda, Shogo Yoshida
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Patent number: 8642142Abstract: Provided is an AM device containing 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 positive dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to and heat, or having a suitable balance regarding at least two of the characteristics, and the AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth; wherein a liquid crystal display device contains a liquid crystal composition having a positive dielectric anisotropy and containing a specific compound having a large positive dielectric anisotropy as a first component and a specific compound having a small viscosity as a second component.Type: GrantFiled: February 1, 2011Date of Patent: February 4, 2014Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Norikatsu Hattori, Shogo Yoshida
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Publication number: 20140027672Abstract: To provide a liquid crystal composition satisfying at least one characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature thereof, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy and specific resistance, high stability to ultraviolet light and heat, or having a suitable balance regarding at least two of the characteristics; an AM device having short response time, a large voltage holding ratio and contrast ratio, and a long life. A liquid crystal composition has a nematic phase and contains a specific straight-chain compound as a first component and a specific compound having a large dielectric anisotropy as second component, and may contain a specific compound having a high maximum temperature or small viscosity as a third component and a specific compound having a high maximum temperature or large dielectric anisotropy as a fourth component, and a liquid crystal display device includes the composition.Type: ApplicationFiled: July 18, 2013Publication date: January 30, 2014Inventors: TAKAYOSHI YANAI, NORIKATSU HATTORI, HIROYUKI TANAKA