Including Heterocyclic Ring Patents (Class 252/299.61)
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Patent number: 8585922Abstract: The invention relates to a liquid-crystalline medium comprising one or more compounds of the formula I in which R0, ring A and L1-4 have the meanings indicated in Claim 1, and to the use thereof in electro-optical liquid-crystal displays.Type: GrantFiled: February 19, 2009Date of Patent: November 19, 2013Assignee: MERCK PATENT GmbHInventors: Michael Wittek, Brigitte Schuler, Harald Hirschmann, Volker Reiffenrath, Markus Czanta, Christian Schoenefeld
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Patent number: 8586152Abstract: 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 negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light, a high stability to heat and a short helical pitch is provided, wherein the liquid crystal composition has a negative dielectric anisotropy and contains a specific optically active compound as a first compound, a specific compound having a large negative dielectric anisotropy as a second component, and may contain a specific compound having a high maximum temperature or a small viscosity as a third component, a specific compound having a large negative dielectric anisotropy as a fourth component and a specific optically active compound as a fifth component, and a liquid crystal display device that contains the composition.Type: GrantFiled: September 1, 2010Date of Patent: November 19, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Yoshimasa Furusato, Takashi Hiraoka, Masayuki Saito
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Patent number: 8580146Abstract: 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 suitable optical anisotropy, a large elastic constant K33, a large negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. Also, a liquid crystal composition having characteristics similar to these of the compound. Additionally, a liquid crystal display device having a short response time, low electric power consumption, a low driving voltage, a large contrast and a wide temperature range in which the device can be used. The compound is a 2,3-difluorobenzene derivative (1) having a combination of a cyclohexane ring, a cyclohexene ring or a benzene ring phenyl and a butene bonding group. The liquid crystal composition includes this compound, and the liquid crystal display device contains this composition.Type: GrantFiled: January 27, 2012Date of Patent: November 12, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventor: Masahide Kobayashi
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Patent number: 8580143Abstract: The present invention relates to a lyotropic chromonic liquid crystal composition, a method for manufacturing a lyotropic chromonic liquid crystal coating film and a lyotropic chromonic liquid crystal coating film manufactured thereby. The lyotropic chromonic liquid crystal composition of the present invention includes chromonic liquid crystal compounds and monomers each having opposing acid-base properties. Use of the lyotropic chromonic liquid crystal composition in the formation of optical films leads to improvements in electrical and optical properties such as mechanical strength, an insulating characteristic and a refractive index.Type: GrantFiled: November 5, 2009Date of Patent: November 12, 2013Assignees: Korea Institute of Industrial Technology, Industrial Cooperation Foundation Chonbuk National UniversityInventors: Seung Han Shin, Eu Gene Chang, Myong Hoon Lee, Kwang Un Jeong, Yun Ju Bae
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Patent number: 8574456Abstract: 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: February 18, 2009Date of Patent: November 5, 2013Assignee: Merck Patent GmbHInventors: Michael Wittek, Brigitte Schuler, Volker Reiffenrath, Mark Goebel, Markus Czanta
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Patent number: 8574455Abstract: A liquid crystal compound, a liquid crystal composition, and a liquid crystal electric optical device having a low rotational viscosity (?1) and appropriate elastic constants. A fluorine-containing liquid crystal compound represented by formula (1). R1-(A1-Z1)a-(A2-Z2)b-(A3-Z3)c-A4-(CH2)n-CF?CF—R2 (1), R1 is a hydrogen atom, a halogen atom, or an alkyl group, R2 is a halogen atom or an alkyl group that may be halogen-substituted or which may include a (thio)ether group, A1 to A4 may be a phenylene group or a cyclohexylene group that may be halogen-substituted or which may include a (thio)ether group, Z1 to Z3 are a single bond, —O—, —S—, or a divalent aliphatic hydrocarbon group that may be halogen-substituted or which may include a (thio)ether group. n is an integer from 0 to 3, and a, b, and c are 0 or 1, provided that a+b+c is 1 or greater.Type: GrantFiled: December 22, 2009Date of Patent: November 5, 2013Assignee: AGC Seimi Chemical Co., Ltd.Inventors: Tomoko Yaguchi, Tomoyuki Asai, Hidemasa Koh
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Patent number: 8568839Abstract: The invention relates to a liquid crystal composition comprising two or more species of liquid crystal compounds respectively having a polymerizable group, at least one species of which being a compound represented by formula (I) below, having a content of the compound of from 20% to 80% relative to the total mass of said two or more species of liquid crystal compounds.Type: GrantFiled: September 29, 2009Date of Patent: October 29, 2013Assignee: FUJIFILM CorporationInventors: Hiroshi Takeuchi, Mitsuyoshi Ichihashi, Ryo Hamasaki
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Publication number: 20130278849Abstract: A liquid crystal medium having stability to heat, light and so forth, a wide temperature range of a liquid crystal phase, a large refractive index anisotropy and a large dielectric anisotropy and an optically isotropic liquid crystal phase is described. A liquid crystal composition is characterized by exhibiting the optically isotropic liquid crystal phase and containing achiral component T containing at least one compound selected from the group of compounds represented by formula (1) as a first component, and a chiral agent: wherein, for example, R1 is alkyl having 1 to 20 carbons, L1, L2, L3, L4, L5 and L6 are independently hydrogen or fluorine, and X1 is halogen.Type: ApplicationFiled: September 5, 2011Publication date: October 24, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Shin-Ichi Yamamoto, Takafumi Kuninobu, Koki Sago, Yasuhiro Haseba
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Publication number: 20130277611Abstract: The present invention relates to compounds containing at least three ring systems, at least one of which is a 2,6-naphthylene group, and two unsaturated bridging groups between the ring systems, and to the use of the compounds for high-frequency components, in particular antennae, especially for the gigahertz region. The liquid-crystalline media comprising these compounds serve, for example, for the phase shifting of microwaves for tuneable ‘phased-array’ antennae.Type: ApplicationFiled: December 14, 2011Publication date: October 24, 2013Applicant: MERCK PATENT GmbHInventors: Christian Jasper, Elvira Montenegro, Detlef Pauluth, Volker Reiffenrath, Atsutaka Manabe
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Publication number: 20130277609Abstract: A compound represented by formula (1), a liquid crystal composition, a liquid crystal display device are described. In formula (1), for example, the ring A1 and the ring A4 are phenylene or cyclohexylene; Z1, Z2, Z3 and Z4 are a single bond or alkylene having 1 to 6 carbons; L1 is a single bond; s and t are 0; and P1, P2, P3 and P4 are a polymerizable group.Type: ApplicationFiled: December 23, 2012Publication date: October 24, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: YASUYUKI GOTO, MAIKO MATSUKUMA, JUNICHI YAMASHITA
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Publication number: 20130277610Abstract: To provide a liquid crystal compound having a large negative value of dielectric anisotropy (As). A compound is represented by formula (1): wherein, in formula (1), one of Y1 and Y2 is fluorine, and the other is CF2H or CF3; G is a ring represented by formula (pr-1) or formula (pr-2): wherein A1 to A3 are independently 1,4-cyclohexylene or 1,4-phenylene; Ra and Rb are independently hydrogen, alkyl having 1 to 20 carbons, or the like; Z0, and Z1 to Z3 are independently a single bond, —(CH2)2—, —CH?CH—, —CF2O—, —OCF2—, —CH2O—, —OCH2—, —COO— or —OCO—; j, m and n are an integer from 0 to 2, and a sum of j, m and n is 0, 1 or 2, however, when m is 0, Y1 is CF2H or CF3, Y2 is fluorine, and Z0 is a single bond, G is a ring represented by formula (pr-1).Type: ApplicationFiled: April 18, 2013Publication date: October 24, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Mayumi GOTO, Sayaka FUJIMORI
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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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Publication number: 20130258268Abstract: The invention relates to a liquid-crystalline medium having a nematic phase and negative dielectric anisotropy which comprises a) one or more compounds of formula I b) one or more compounds of formula II and c) one or more compounds selected from the compounds of formulae III-1 to III-4 in which the parameters have the meanings indicated herein, 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 stabilisation of a liquid-crystalline medium which comprises one or more compounds of formula II and one or more compounds selected from the compounds of formulae III-1 to III-4.Type: ApplicationFiled: November 11, 2011Publication date: October 3, 2013Applicant: MERCK PATENT GMBHInventors: Mark Goebel, Elvira Montenegro, Atsutaka Manabe
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Publication number: 20130256596Abstract: The invention relates to a liquid-crystalline medium, characterised in that it comprises one or more compounds of the formula IA, and one or more compounds of the formula IB, in which RA, RB, XA, XB and Y1-13 have the meanings indicated in claim 1, and to the use thereof for electro-optical purposes, in particular for shutter glasses, 3D applications, in TN, PS-TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, PS-FFS and PS-VA-IPS displays.Type: ApplicationFiled: November 17, 2011Publication date: October 3, 2013Applicant: MERCK PATENT GMBHInventors: Harald Hirschmann, Sabine Schoen
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Patent number: 8545717Abstract: The present invention relates to a composition comprising a curable dichroic dye and a curable liquid crystal compound, which are used to prepare an optical component that is vertically oriented to give a narrow viewing angle, to form an optical component, and an optical component comprising an optical component layer prepared using the same. There is provided a composition for forming an optical component comprising 0.1-90 parts by weight of a dichroic dye and 10-98.85 parts by weight of a curable liquid crystal compound, and there is also provided an optical component comprising an optical component layer in which a curable liquid crystal compound and a curable dichroic dye are vertically oriented.Type: GrantFiled: July 4, 2008Date of Patent: October 1, 2013Assignee: LG Chem, Ltd.Inventors: Yong Il Cho, Dae Hee Lee, Sin Young Kim, Hee Jean Lee, Su Young Ryu
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Publication number: 20130248761Abstract: 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, Z?, 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: ApplicationFiled: May 1, 2013Publication date: September 26, 2013Applicant: Merck Patent GmbHInventors: Norihiko Tanaka, Makoto Murakami, Shinji Nakajima
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Publication number: 20130248762Abstract: The invention relates to liquid-crystalline media comprising at least one compound of the formula I, in which R0, R0* and ring A have the meanings indicated in Claim 1, and to electro-optical liquid-crystal displays, in particular for TN-TFT, OCB, IPS, PS-IPS, FFS, PS-FFS and positive VA applications.Type: ApplicationFiled: November 14, 2011Publication date: September 26, 2013Applicant: Merck Patent GmbHInventors: Harald Hirschmann, Michael Wittek, Markus Czanta, Brigitte Schuler, Volker Reiffenrath
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Publication number: 20130248763Abstract: The invention relates to a liquid-crystalline medium having a nematic phase and negative dielectric anisotropy which comprises a) a compound of the formula (I) b) one or more compounds of the formula (II) and c) one or more compounds selected from the group of the compounds of the formulae (III-1) to (III-4), in which the parameters have the 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, displays of this type contain a liquid-crystalline medium of this type, and the use of the compound of the formula I for the stabilisation of a liquid-crystalline medium that comprises one or more compounds of the formula II and one or more compounds selected from the group of the compounds of the formulae (III-1) to (III-4).Type: ApplicationFiled: November 8, 2011Publication date: September 26, 2013Applicant: MERCK PATENT GMBHInventors: Mark Goebel, Atsutaka Manabe, Elvira Montenegro, Detlef Pauluth
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Publication number: 20130240784Abstract: To provide a liquid crystal compound having a large negative dielectric anisotropy (??), and having at least one of characteristics such as a high stability to heat, light and so forth, a high clearing point, a suitable refractive index anisotropy (?n) and an excellent compatibility with other liquid crystal compounds, and an intermediate thereof. A solution is a compound represented by formula (1): wherein, for example, R1 and R2 are alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons or alkenyl having 2 to 12 carbons; ring A1, ring A2 and ring A3 are 1,4-cyclohexylene or 1,4-phenylene; Z1, Z2 and Z3 are a single bond or —(CH2)2—; X is —CF2— or —CHF—; and l, m and n are 0 or 1.Type: ApplicationFiled: December 9, 2011Publication date: September 19, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Kenji Hirata, Hiroki Ookawa
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Patent number: 8535768Abstract: Described is a liquid crystal composition which satisfies at least one of such characteristics as high upper limit temperature of the nematic phase, low lower limit temperature of the nematic phase, low viscosity, adequate optical anisotropy, large negative dielectric anisotropy, high resistivity, high stability to ultraviolet light and high stability to heat, or which has an adequate balance between at least two of the above-mentioned characteristics. Also described is an AM element having a short response time, high voltage holding ratio, high contrast ratio, long life and the like. The liquid crystal composition contains a specific compound having a large negative dielectric anisotropy and a low lower limit temperature as a first component, a specific compound having a low viscosity or a high upper limit temperature as a second component, and a specific compound having a polymerizable group as a third component. The AM element contains the composition.Type: GrantFiled: January 15, 2010Date of Patent: September 17, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventor: Masayuki Saito
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Patent number: 8535769Abstract: Since a polymerizable liquid crystal compound represented by the general formula (1) produces polymers exhibiting high optical anisotropy and high chemical resistance, and the optical anisotropy thereof exhibits low wavelength dependence, polymers obtained from a polymerizable liquid crystal composition comprising said polymerizable liquid crystal compound are useable as an optically anisotropic film for polarizers, wave plates, and the like, and are particularly best used in pattern formation that uses photolithography in air. (n represents an integer in the range of 3 to 10, m represents an integer in the range of 0 to 5, and q represents an integer in the range of 1 to 2.Type: GrantFiled: September 16, 2010Date of Patent: September 17, 2013Assignee: Nissan Chemical Industries, Ltd.Inventor: Daniel Antonio Sahade
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Publication number: 20130234066Abstract: 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: ApplicationFiled: April 24, 2013Publication date: September 12, 2013Applicant: Merck Patent GmbHInventors: Norihiko TANAKA, Makoto MURAKAMI, Shinji NAKAJIMA
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Publication number: 20130230669Abstract: To provide a liquid crystal compound showing a large absolute value of dielectric anisotropy (|??|. A compound is represented by formula (1): wherein, in formula (1), Ra and Rb are fluorine, alkyl having 1 to 10 carbons or the like, and in the alkyl, at least one of —CH2— may be replaced by —O— or the like, however, Ra and Rb are not identical; A1, A2, A3, A4 and A5 are 1,4-cyclohexylene, 1,4-phenylene or the like, and in the groups, at least one of hydrogen may be replaced by fluorine; Z1, Z2, Z4 and Z5 are a single bond or the like; Y1, Y2, Y3 and Y4 are hydrogen, fluorine or the like; and m, n, q and r are 0, 1 or 2, and a sum of m, n, q and r is 0, 1, 2, 3 or 4.Type: ApplicationFiled: February 28, 2013Publication date: September 5, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventor: Yasuyuki SASADA
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Publication number: 20130228720Abstract: 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 ingredientsType: ApplicationFiled: April 15, 2013Publication date: September 5, 2013Applicant: Tetragon LC Chemie AGInventors: Wolfgang Haase, Artsiom Lapanik
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Patent number: 8524117Abstract: 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, PALO or IPS effect.Type: GrantFiled: February 29, 2012Date of Patent: September 3, 2013Assignee: Merck Patent GmbHInventors: Norihiko Tanaka, Makoto Murakami, Shinji Nakajima
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Publication number: 20130222755Abstract: 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, 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, and so forth. To provide 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 polymerizable group as a first component and a specific compound having a large negative dielectric anisotropy and a low minimum temperature as a second component, and may contain a specific compound having a small viscosity or a large maximum temperature as a third component, and a liquid crystal display device includes the composition.Type: ApplicationFiled: November 2, 2011Publication date: August 29, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Yoshimasa Furusato, Eriko Kurihara, Masayuki Saito
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Patent number: 8512820Abstract: Ionic mesogenic compounds of formula (I) can be used to form liquid crystal displays, such as ferroelectric liquid crystal displays, having enhanced anti-image sticking properties. The mesogenic compounds may contain a cationic group such as an ammonium or phosphonium group bonded to an alkyl chain that is terminally bonded to a para-substituted pyrimidyl benzene moiety. The counterion can be an organic or inorganic anion. The compounds can be used either as dopants in art ferroelectric liquid crystal compositions to reduce image sticking, or can be used as the primary or predominant component of a liquid crystal display system. Additional compounds, devices, and methods are disclosed.Type: GrantFiled: June 14, 2011Date of Patent: August 20, 2013Assignee: Citizen Finetech Miyota Co., Ltd.Inventors: Yongqiang Zhang, Su Yang
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Patent number: 8512597Abstract: A polymerizable optically-active imide compound represented by the following general formula (I). Preferable among the polymerizable optically-active imide compound are compounds wherein X3 and X4 in general formula (I) are both —CO—, compounds wherein the rings A2 and A3 in general formula (I) are both naphthalene rings, compounds wherein the rings A1, A2, A3, and A4 are all benzene rings, compounds wherein M1 and M2 in general formula (I) are both hydrogen atoms, or compounds wherein rings A1 and A4, as well as rings A2 and A3, in general formula (I) are the same ring, the groups M1 and M2, X1 and X6, X2 and X5, as well as X3 and X6 are the same group in each pair, and n and m are the same number.Type: GrantFiled: August 25, 2009Date of Patent: August 20, 2013Assignee: Adeka CorporationInventors: Satoshi Yanagisawa, Masatomi Irisawa
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Publication number: 20130207038Abstract: The invention relates to a liquid-crystalline medium, characterised in that it contains one or more compounds of the formula IA, and at least one compound selected from the group of compounds of the formula IIA, IIB and IIC, in which RA, R2A, R2B, R2C, ring A, ring B, XA, Y1-6, L1-6, Z2, Z2?, o, p, q, v and (O)CvH2v+1 have the meanings indicated in Claim 1, and to the use thereof for electro-optical purposes, in particular for shutter glasses, 3D applications, in TN, PS-TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, PS-FFS and PS-VA-IPS displays.Type: ApplicationFiled: February 11, 2013Publication date: August 15, 2013Applicant: MERCK PATENT GMBHInventor: Merck Patent GmbH
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Publication number: 20130208227Abstract: The present invention relates to a switch element, which is thermoresponsive and which switches between a less transmissive state for radiant energy and a more transmissive state for radiant energy, and which comprises a liquid-crystalline medium. The invention furthermore relates to the use of the switch element for the regulation of radiant energy flow between interior spaces and the environment and for the regulation of the temperature of interior spaces. The invention furthermore relates to a liquid-crystalline medium, characterised in that it comprises a compound of the formula (I), in particular for use in the switch elements according to the invention.Type: ApplicationFiled: September 21, 2011Publication date: August 15, 2013Applicant: Merck Patent GmbHInventor: Michael Junge
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Publication number: 20130207039Abstract: 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: ApplicationFiled: September 27, 2011Publication date: August 15, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Norikatsu Hattori, Yoshinari Matsumura, Hiroaki Fujita
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Publication number: 20130208222Abstract: A reactive mesogen compound, a liquid crystal composition including the reactive mesogen compound, a method of manufacturing a display panel, and a display panel are disclosed. The reactive mesogen compound may be activated by light having a wavelength between about 300 nm and about 700 nm.Type: ApplicationFiled: August 16, 2012Publication date: August 15, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Dae-Ho SONG, Young-Jin PARK, Gyeong-Eun EOH, Sung-Chan JO, Sang-Wan SO
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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: 8501285Abstract: A liquid crystal medium, which has a liquid crystal phase over a wide temperature range, a large refractive index anisotropy, and a large dielectric anisotropy, and exhibits an optically isotropic liquid crystal phase, is provided. The liquid crystal medium is characterized by containing a liquid crystal compound having four benzene rings and a difluoromethyleneoxy group, and a chiral reagent, and exhibiting an optically isotropic liquid crystal phase.Type: GrantFiled: October 27, 2009Date of Patent: August 6, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Yasuhiro Haseba, Takafumi Kuninobu
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Patent number: 8501902Abstract: The invention relates to a process for coupling thiophene or selenophene compounds, in particular for preparing conjugated thiophene or selenophene polymers with high molecular weight and high regioregularity, and to novel polymers prepared by this process. The invention further relates to the use of the novel polymers as semiconductors or charge transport materials in optical, electrooptical or electronic devices including field effect transistors (FETs), thin film transistors (TFT), electroluminescent, photovoltaic and sensor devices. The invention further relates to FETs and other semiconducting components or materials comprising the novel polymers.Type: GrantFiled: August 15, 2006Date of Patent: August 6, 2013Assignee: Merck Patent GmbHInventors: Steven Tierney, Martin Heeney, Weimin Zhang, Simon Higgins, Iain Liversedge
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Publication number: 20130193377Abstract: 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; a liquid crystal composition having a suitable balance regarding at least two of the characteristics; and an AM device having a short response time, a large voltage holding ratio and contrast ratio, a long service life; a solution is a liquid crystal composition that has a negative dielectric anisotropy, and contains a specific compound having a large negative dielectric anisotropy as a first component and a specific compound having a small viscosity as a second component, and may contain a specific compound having a large negative dielectric anisotropy as a third component, and a liquid crystal display device including the composition.Type: ApplicationFiled: January 25, 2013Publication date: August 1, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Kazuhiko SAIGUSA, Yoshimasa FURUSATO
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Publication number: 20130188107Abstract: A cholesteric liquid-crystal composition is described, which contains a liquid-crystal component and a chiral agent, and has a selective reflection wavelength in the range of 400 nm to 800 nm at 25° C.Type: ApplicationFiled: September 29, 2011Publication date: July 25, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Yasuhiro Haseba, Koki Sago, Takafumi Kuninobu, Shin-Ichi Yamamoto
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Publication number: 20130183460Abstract: The invention relates to liquid-crystalline media which can be used, in particular, for electro-optical displays having active-matrix addressing based on the ECB effect and for IPS (in-plane switching) displays or FFS (fringe field switching) displays.Type: ApplicationFiled: December 20, 2012Publication date: July 18, 2013Applicant: MERCK PATENT GMBHInventor: MERCK PATENT GMBH
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Patent number: 8486297Abstract: The present invention relates to thiophene derivatives, to processes and intermediates for the preparation thereof, to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, and to LC media and LC displays comprising same.Type: GrantFiled: February 3, 2010Date of Patent: July 16, 2013Assignee: Merck Patent GmbHInventors: Axel Jansen, Detlef Pauluth, Harald Hirschmann, Markus Czanta
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Patent number: 8480926Abstract: Disclosed is a visible light-transmissive liquid-crystalline compound having good hole and electron-transport characteristics and useful as an organic semiconductor material. The compound is represented by a formula (1): wherein R independently represents hydrogen, or alkyl having from 1 to 24 carbon atoms, and any —CH2— in the alkyl may be replaced by —O—, —S—, —CO— or —SiH2—, any —(CH2)2— may be replaced by —CH?CH— or —C?C—, and any hydrogen may be replaced by halogen; Ar represents naphthylene, anthrylene, phenanthrylene, or phenylene; and every hydrogen in phenylene is replaced by halogen, and any hydrogen in naphthylene, anthrylene and phenanthrylene may be replaced by halogen.Type: GrantFiled: July 4, 2011Date of Patent: July 9, 2013Assignee: JNC CorporationInventors: Yasuyuki Sasada, Tetsuharu Miwa
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Patent number: 8481129Abstract: 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: GrantFiled: December 29, 2011Date of Patent: July 9, 2013Assignee: Industrial Technology Research InstituteInventors: Yi-Rong Wang, Chih-Lung Chin, Wan-Chi Chen, Kung-Lung Cheng, Shih-Hsien Liu
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Patent number: 8475888Abstract: Provided is a liquid crystal compound having general physical properties necessary for a compound, stability to heat, light or the like, a wide liquid crystal phase temperature range, a high clearing point, an excellent compatibility with other liquid crystal compounds, a large refractive index anisotropy and a large dielectric anisotropy. Provided are a liquid crystal composition including the liquid crystal compound, and a liquid crystal display device containing the liquid crystal composition. The compound is represented by formula (1): wherein, for example, R1 is alkyl having 1 to 20 carbons; at least one of the rings A1 to A6 is pyrimidine-2,5-diyl or pyridine-2,5-diyl and the others are 1,4-cyclohexylene or 1,4-phenylene; Z1 to Z6 are a single bond; L1 to L4 is hydrogen or halogen; X1 is hydrogen, halogen, —C?N or alkyl having 1 to 10 carbons; and l, m, n, o, p and q are 0 or 1 and l+m+n+o+p+q=3.Type: GrantFiled: October 14, 2009Date of Patent: July 2, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Hiroyuki Tanaka, Kouki Sagou
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Patent number: 8475887Abstract: A liquid crystal medium having a wide temperature range of a liquid crystal phase, a large optical anisotropy, and a large dielectric anisotropy and having an optically isotropic liquid crystal phase is provided. The liquid crystal medium is characterized by containing a liquid crystal compound having a pyrimidine ring and a linking group —CF2O— and a chiral dopant, and exhibiting an optically isotropic liquid crystal phase.Type: GrantFiled: May 8, 2009Date of Patent: July 2, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Yasuhiro Haseba, Kohki Sago, Takafumi Kuninobu
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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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Publication number: 20130155338Abstract: The present invention relates to a switch element, which is thermoresponsive and which switches between a less transmissive state for radiant energy and a more transmissive state for radiant energy, and which comprises a liquid-crystalline medium. The invention furthermore relates to the use of the switch element for the regulation of radiant energy flow between interior spaces and the environment and for the regulation of the temperature of interior spaces. The invention furthermore relates to a liquid-crystalline medium, characterised in that it comprises 5-95% of a compound of the formula (I), in particular for use in the switch elements according to the invention.Type: ApplicationFiled: July 27, 2011Publication date: June 20, 2013Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNGInventor: Michael Junge
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Patent number: 8465672Abstract: The invention relates to mesogenic tetrahydropyran compounds having at least four rings, of the formula I in which R1, A1, A2, X1, L1, L2, m and n have the meanings indicated in Claim 1, and to a process for the preparation thereof, to the use thereof in liquid-crystalline media, to liquid-crystalline media comprising at least one compound of the formula I, and to electro-optical displays containing a liquid-crystalline medium of this type.Type: GrantFiled: July 17, 2007Date of Patent: June 18, 2013Assignee: Merck Patent GmbHInventors: Lars Lietzau, Markus Czanta, Atsutaka Manabe
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Patent number: 8465674Abstract: A compound represented by the formula (1) is provided. In the formula (1), for example, R1 and R2 are alkyl having 1 to 10 carbons, alkoxy having 1 to 9 carbons or alkenyl having 2 to 10 carbons; the ring A and the ring B are 1,4-cyclohexylene or 1,4-phenylene; Z1 and Z2 are a single bond and Z3 is —CH2O— or —OCH2—; Y1 and Y2 are halogen, —CF3, —CHF2, —CH2F, —OCF3, —OCHF2 or —OCH2F; and m and n is 0, 1 or 2, p is 1 or 2, and the sum of m, n and p is 1, 2 or 3.Type: GrantFiled: August 9, 2010Date of Patent: June 18, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventor: Tokifumi Masukawa
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Patent number: 8465673Abstract: A humidity dependence improver for polymer film, comprising a compound of the following formula (1) or (2): wherein Ra, Rb and Rc represent an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group; X1 to X6 represent a single bond or a divalent linking group; R1 to R6 represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group.Type: GrantFiled: September 29, 2010Date of Patent: June 18, 2013Assignee: FUJIFILM CorporationInventors: Takayasu Yasuda, Masato Nagura
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Patent number: 8460576Abstract: Provided are a liquid crystal composition containing, as a first component, a polymerizable compound represented by general formula (I): and a liquid crystal display element using the liquid crystal composition.Type: GrantFiled: April 15, 2011Date of Patent: June 11, 2013Assignee: DIC CorporationInventors: Kazuki Kurisawa, Takeshi Kuriyama, Shotaro Kawakami
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Patent number: 8461291Abstract: There is provided an electroactive material having Formula I wherein: Q is the same or different at each occurrence and can be O, S, Se, Te, NR, SO, SO2, or SiR3; R is the same or different at each occurrence and can be hydrogen, alkyl, aryl, alkenyl, or alkynyl; and R1 through R6 are the same or different and can be hydrogen, alkyl, aryl, halogen, hydroxyl, aryloxy, alkoxy, alkenyl, alkynyl, amino, alkylthio, phosphino, silyl, —COR, —COOR, —PO3R2, —OPO3R2, or CN.Type: GrantFiled: December 17, 2008Date of Patent: June 11, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Hong Meng, Dengfu Wang