Including Fused Or Bridged Rings Patents (Class 252/299.62)
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Patent number: 12142820Abstract: A 5G system comprising at least one antenna element configured to transmit and receive 5G radio frequency signals and at least one electronic component is provided. The antenna element, the electronic component, or both, comprise a polymer composition that includes a liquid crystalline polymer that contains repeating units derived from naphthenic hydroxycarboxylic and/or dicarboxylic acids in an amount of about 10 mol. % or more. Further, the polymer composition exhibits a dielectric constant of about 5 or less and dissipation factor of about 0.05 or less at a frequency of 10 GHz.Type: GrantFiled: August 18, 2020Date of Patent: November 12, 2024Assignee: Ticona LLCInventors: Xiaowei Zhang, Xinyu Zhao, Young Shin Kim, Hendrich A. Chiong, Christopher McGrady
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Patent number: 11555152Abstract: [Object] An object of the present invention is to provide a liquid crystal composition containing a polymerizable compound for use in the manufacture of a PSA or PSVA liquid crystal display device. The polymerizable compound has a sufficiently high polymerization rate. The PSA or PSVA liquid crystal display device has few or no display defects due to a change in pretilt angle, has an adequate pretilt angle, and has high responsiveness. The present invention also provides a liquid crystal display device having the liquid crystal composition. [Solution] The object is achieved by using a liquid crystal composition containing one or two or more polymerizable compounds represented by the general formula (I).Type: GrantFiled: April 13, 2017Date of Patent: January 17, 2023Assignee: DIC CORPORATIONInventors: Marina Goto, Yuichi Inoue, Shota Kosaka, Go Sudo, Masanao Hayashi, Manabu Takachi
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Patent number: 11441073Abstract: The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I, wherein the radicals R11, L1, L2, n and A are as defined herein, and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PA-VA, PALC, FFS, PS-FFS, IPS or PS-IPS effect.Type: GrantFiled: August 21, 2015Date of Patent: September 13, 2022Assignee: MERCK PATENT GMBHInventors: Harald Hirschmann, Martina Windhorst, Monika Bauer, Volker Reiffenrath, Matthias Bremer
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Patent number: 11316118Abstract: A compound of Formula (I) D-S1-A-S2—B1,??Formula (I) wherein: A represents a conjugated chain of from 1 to 20 aromatic moieties independently selected from the group consisting of aromatic moieties, heteroaromatic moieties and E moieties, provided that A includes at least one E moiety, wherein E is selected from the group consisting of: E1 being a dibenzo[d,b]silole moiety of the structure: E2 being a moiety of the structure: and E3 being a moiety of the structure: wherein E is connected in the conjugated chain of A and optionally to S1 or to S2 through covalent bonds at Y and Z; wherein each R is independently selected from the group consisting of straight chain or branched C1-C20 alkyl and C2-C20 alkenyl, optionally wherein from 1 to 5 CH2 groups are each replaced by an oxygen, provided that no acetal, ketal, peroxide or vinyl ether is present in the R group, and optionally wherein each H bonded to a C in each R group may independently be replaced by a halogen; wherein theType: GrantFiled: October 6, 2017Date of Patent: April 26, 2022Assignee: Lomox LimitedInventors: Luke William Judd, Matthew P. Aldred
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Patent number: 11091699Abstract: Provided are a polymerizable compound represented by formula I and a liquid crystal composition formed by combining such a polymerizable compound with a specific liquid crystal component, particularly a PSVA liquid crystal composition for displays or TV applications and a PSA-IPS liquid crystal composition for an IPS mode; in particular, the polymerizable compound has a faster polymerization rate, and a “material system” formed from the selected polymerizable component and liquid crystal component has a low rotary viscosity and good photoelectric properties, and has a high VHR after (UV) photoradiation, this avoiding the problem of the occurrence of residual images to final displays.Type: GrantFiled: December 20, 2018Date of Patent: August 17, 2021Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTDInventors: Jinsong Meng, Guoliang Yun, Zhian Liang, Xing Zhang, Ke-Lun Shu, Yongfeng Bao, Ruixiang Liang, Ming Li
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Patent number: 11078420Abstract: Provided are a polymerizable compound represented by formula I and a liquid crystal composition comprising the polymerizable compound, particularly a PSVA liquid crystal composition for displays or TV applications and a PSA-IPS liquid crystal composition for an IPS mode; in particular, the polymerizable compound has a faster polymerization rate, and a “material system” formed from the selected polymerizable component and liquid crystal component has a lower rotary viscosity and better photoelectric properties, and has a high VHR after (UV) photoradiation, this avoiding the problem of the occurrence of residual images to final displays.Type: GrantFiled: December 20, 2018Date of Patent: August 3, 2021Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Jinsong Meng, Ming Li, Kui Wang, Xing Zhang, Guoliang Yun, Zhian Liang, Yiping Wang, Gang Wen
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Patent number: 11060029Abstract: The invention relates to a liquid-crystalline medium having a nematic phase comprising one or more compounds of formula B wherein the parameters have the meaning given in the text, to the use thereof in an electro-optical display, particularly in an active-matrix display based on the IPS or FFS effect, to displays of this type which contain a liquid-crystalline medium of this type and to the use of the compounds of formula B for improvement of the transmission and/or response times of a liquid-crystalline medium which comprises one or more additional mesogenic compounds.Type: GrantFiled: November 15, 2017Date of Patent: July 13, 2021Assignee: MERCK PATENT GMBHInventors: Atsutaka Manabe, Constanze Brocke
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Patent number: 11001757Abstract: Described herein are heterocyclic liquid crystal compositions that can allow for the adjustment of their refractive indices by the application of an electric field. In addition, selectively dimmable reverse-mode polymer dispersed liquid crystal (PDLC) elements and devices using these compositions are also described, which are transparent when no voltage is applied and opaque when a voltage is applied.Type: GrantFiled: August 3, 2018Date of Patent: May 11, 2021Assignee: NITTO DENKO CORPORATIONInventors: Sazzadur Rahman Khan, Hiep Luu
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Patent number: 10995273Abstract: Polymerisable compounds, processes and intermediates for the preparation thereof, liquid-crystal (LC) media comprising them, and 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 polymer sustained alignment type.Type: GrantFiled: December 7, 2017Date of Patent: May 4, 2021Assignee: Merck Patent GmbHInventors: Dmitry Ushakov, Kaja Christina Deing
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Patent number: 10968391Abstract: A liquid crystal composition includes at least one of a monofunctional compound represented by Formula (1) defined herein and a monofunctional compound represented by Formula (2) defined herein, and at least one of a difunctional compound represented by Formula (3) defined herein and a multifunctional compound represented by Formula (4) defined herein.Type: GrantFiled: May 3, 2019Date of Patent: April 6, 2021Assignee: DAXIN MATERIALS CORP.Inventors: Chih-Yuan Lo, Chung-Hsien Wu, Chen Wang, Chun-Chih Wang
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Patent number: 10954445Abstract: Disclosed is a liquid crystal composition comprising one or more compounds represented by formula I and/or formula II and one or more compounds represented by formula III: wherein the definition of each substituent is given. The composition involved in the present invention has a low viscosity ?1, a high clearing point Tni and a large optical anisotropy ?n, and can realize a rapid response of liquid crystal display.Type: GrantFiled: September 24, 2018Date of Patent: March 23, 2021Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Ke-Lun Shu, RuiXiang Liang, YanLi Dong, YunXia Qiao, Lei Zhao, HuBo Zhang
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Patent number: 10662378Abstract: Provided are liquid crystal compounds satisfying at least one of physical properties such as high stability to heat or light, a high clearing point (or high maximum temperature), low minimum temperature of a liquid crystal phase, small viscosity, large optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and good 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): wherein R1 and R2 are independently hydrogen or alkyl having 1 to 15 carbons; and A1, A2 and A3 are independently 1,4-cyclohexylene or 1,4-phenylene; Z1, Z2 and Z3 are independently a single bond; Y1, Y2, Y3 and Y4 are independently hydrogen, fluorine or the like; and a, b and c are independently 0 or 1, and a sum of a, b and c is 0 to 3.Type: GrantFiled: March 12, 2018Date of Patent: May 26, 2020Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Ayako Mori, Hiroyuki Tanaka
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Patent number: 10464897Abstract: The present application relates to compounds comprising an ester, a thioester, or a hydrazide moiety and methods of synthesizing these compounds. The present application also relates to pharmaceutical compositions containing the compounds and methods of treating cell proliferative disorders mediated by the Hh signaling pathway, such as cancer, by administering the compounds and pharmaceutical compositions to subjects in need thereof.Type: GrantFiled: June 3, 2016Date of Patent: November 5, 2019Assignee: Dana-Farber Cancer Institute, Inc.Inventors: James Bradner, Michael Erb, Jun Qi
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Patent number: 10421906Abstract: There is provided a liquid crystal display element. The liquid crystal layer contains a liquid crystal composition between the first substrate and the second substrate. The first common electrode contains a transparent conductive material on the first substrate. The second common electrode contains a transparent conductive material on the second substrate. The pixel electrode contains a transparent conductive material. Distances R between the pixel electrode and the common electrode is smaller than distance G between the first substrate and the second substrate. The common electrode is disposed closer to the first substrate than the pixel electrode over nearly the entire surface of the first substrate. The liquid crystal composition has negative dielectric anisotropy and contains one or two or more compounds selected from the group of compounds represented by General Formula (i), General Formula (ii), and General Formula (iii).Type: GrantFiled: July 23, 2015Date of Patent: September 24, 2019Assignee: DIC CORPORATIONInventors: Kazunori Maruyama, Yoshinori Iwashita, Shinji Ogawa
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Patent number: 10414980Abstract: This invention provides an FFS type liquid crystal display containing one type or two or more types of compounds selected from the group of compounds represented by General Formula (i), General Formula (ii), and General Formula (iii) and one type or two or more types of compounds selected from compounds represented by General Formula (II). This display makes it possible to realize excellent display characteristics without deteriorating various liquid crystal display characteristics such as dielectric anisotropy, viscosity, nematic-phase maximum temperature, nematic-phase stability at low temperatures, or ?1 and the display burn-in characteristics.Type: GrantFiled: July 23, 2015Date of Patent: September 17, 2019Assignee: DIC CORPORATIONInventors: Kazunori Maruyama, Takashi Kitsunai, Shinji Ogawa
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Patent number: 10323187Abstract: Provided are a liquid crystal compound satisfying at least one of physical properties such as high stability to heat or light, a high clearing point (or high maximum temperature), low minimum temperature of a liquid crystal phase, small viscosity, large optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and good compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound and a liquid crystal display device including the composition. A compound is represented by formula (1): wherein, R1 and R2 are alkyl having 1 to 15 carbons; A1, A2, A3 and A4 are 1,4-cyclohexylene and 1,4-phenylene; Z1, Z2, Z3 and Z4 are a single bond; Y1, Y2 and Y3 are fluorine; and a, b, c and d are 0 or 1, and a sum of a, b, c and d is an integer from 0 to 3, or the like.Type: GrantFiled: September 28, 2017Date of Patent: June 18, 2019Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventor: Hiroyuki Tanaka
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Patent number: 10253258Abstract: The present invention provides a liquid crystal composition including at least one compound represented by General Formula (1), at least one compound represented by General Formula (2), and at least one compound represented by General Formula (LC1). The liquid crystal composition of the present invention has high refractive index anisotropy (?n) and sufficiently low viscosity (?), achieves a wide nematic phase temperature range by suppressing a decrease in nematic phase-isotropic liquid phase transition temperature (Tni), and exhibits high compatibility. By using the liquid crystal composition of the present invention in a liquid crystal display element, a liquid crystal display element having a high response speed and high practical reliability can be obtained.Type: GrantFiled: July 28, 2015Date of Patent: April 9, 2019Assignee: DIC CORPORATIONInventors: Shirou Taniguchi, Joji Kawamura
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Patent number: 10214690Abstract: A liquid crystal composition including a liquid crystal compound represented by Formula 1:Type: GrantFiled: April 18, 2017Date of Patent: February 26, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sung-Hwan Hong, Eun Kyung Koh, Myung-Eun Kim, Fusayuki Takeshita, Ji Hong Bae
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Patent number: 10203560Abstract: The embodiments of the present disclosure provide a method for manufacturing a liquid crystal display device which includes a liquid crystal panel, and the method includes transforming the liquid crystal in a liquid crystal panel into a solid state before processing the liquid crystal panel, and transforming the liquid crystal in the liquid crystal panel into a liquid state after the liquid crystal panel is processed. In the method, the liquid crystal in a liquid crystal panel is transformed into a solid state before processing the liquid crystal panel, which can greatly enhance the pressure resistance of the liquid crystal panel, and prevent the pressure in the processing from breaking the liquid crystal panel.Type: GrantFiled: June 22, 2016Date of Patent: February 12, 2019Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Yuguang Fan, Shichao Wang, Jian Li, Changyong Gong, Jingpeng Li, Xiuliang Wang, Zhenyu Xie
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Patent number: 10087371Abstract: A liquid crystal composition and a liquid crystal display, the composition including a liquid crystal compound represented by Chemical Formula 1 below:Type: GrantFiled: January 17, 2017Date of Patent: October 2, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sung-Hwan Hong, Hoi-Lim Kim, Da Hye Cho, Young Mi Cho
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Patent number: 10059880Abstract: A subject is a polymerizable liquid crystal composition in which tilt alignment is easily developed and an optical anisotropic film obtained therefrom. A solution is a polymerizable liquid crystal composition containing one or more polymerizable liquid crystal compounds selected from compounds represented by formulas (1-1), (1-2) and (1-3), and a polymerizable liquid crystal compound represented by formula (2-1). In the following formula, for example, Z11 and Z12 are hydrogen; W1 is independently hydrogen, fluorine or a methoxy; W2 and W3 are independently hydrogen or methyl; X1 is independently a single bond or —CH2CH2—; and for example, W4 is methyl; and X2 is —O—; and m1, m2, n1 and n2 are 2 to 15. Moreover, Z21 is hydrogen or methyl; R1 is an alkyl ester-containing substituent; W5 is hydrogen; X3 is —COO—; X4 is —O—, for example; and m3 is 2 to 15 and q1 is 0 to 2.Type: GrantFiled: July 14, 2014Date of Patent: August 28, 2018Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventor: Yoshiharu Hirai
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Patent number: 10056548Abstract: The invention concerns polymers, electroluminescence devices, compositions and their use.Type: GrantFiled: September 18, 2013Date of Patent: August 21, 2018Assignee: Merck Patent GmbHInventors: Junyou Pan, Martin Engel, Nils Koenen, Aurélie Ludemann
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Patent number: 9567526Abstract: The present invention relates to polymerizable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to the use of the polymerizable 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: GrantFiled: June 25, 2014Date of Patent: February 14, 2017Assignee: MERCK PATENT GMBHInventors: Martin Engel, Eveline Baron, Constanze Brocke, Helga Haas, Stephan Derow, Christoph Marten, Qiong Tong
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Patent number: 9469809Abstract: 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: GrantFiled: January 25, 2013Date of Patent: October 18, 2016Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Kazuhiko Saigusa, Yoshimasa Furusato
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Patent number: 9434882Abstract: 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. The liquid-crystalline medium is useful in an electro-optical display, particularly in an active-matrix display based on the VA, ECB, PALC, FFS or IPS effect.Type: GrantFiled: November 8, 2011Date of Patent: September 6, 2016Assignee: MERCK PATENT GMBHInventors: Mark Goebel, Atsutaka Manabe, Elvira Montenegro, Detlef Pauluth
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Patent number: 9411082Abstract: A polarizing plate includes a base film and a polarizer. The polarizer includes a dichroic dye formed on the base film, oriented perpendicular to a plane of the base film, and having a discotic liquid crystal phase.Type: GrantFiled: June 17, 2014Date of Patent: August 9, 2016Assignee: Samsung Display Co., Ltd.Inventors: Beong-hun Beon, Seungbeom Park, Jihye Kim
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Patent number: 9250476Abstract: Provided are a liquid crystal display device that suppresses occurrence of drop marks during production without degrading various properties, such as dielectric anisotropy, viscosity, nematic phase upper limit temperature, rotational viscosity (?1), and ghosting property, and a method for producing the liquid crystal display device. A liquid crystal display device 10 of the present invention includes a liquid crystal composition layer 13 sandwiched between a first substrate 11 and a second substrate 12 and vertical alignment films 16 and 17 formed of a cured product of a polymerizable liquid crystal compound. The liquid crystal composition constituting the liquid crystal composition layer 13 contains compounds represented by general formulae (I) and (II).Type: GrantFiled: September 5, 2012Date of Patent: February 2, 2016Assignee: DIC CORPORATIONInventors: Shinji Ogawa, Yoshinori Iwashita, Takeshi Kuriyama
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Patent number: 9222023Abstract: A liquid crystal composition and a liquid crystal display wherein the liquid crystal composition includes: a compound of general formula (I) including 1%-50% of the total weight of the liquid crystal composition; a compound of general formula (II) including 1%-60% of the total weight of the liquid crystal composition; a compound of general formula (III) including 1%-60% of the total weight of the liquid crystal composition; and a compound of general formula (IV) including 0-50% of the total weight of the liquid crystal composition—wherein the liquid crystal composition has a suitably wider nematic phase scope, a suitable optical anisotropy, a favorable low-temperature storage stability a faster response speed, can be used for outdoor work, has a good image display effect, and substantially free of streaking phenomenon.Type: GrantFiled: April 10, 2013Date of Patent: December 29, 2015Assignee: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Wenming Han, Yudong Tan, Dingfu Ma, Biao Hu, Yiming Wang, Zhaoyuan Chen, Shizhi You
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Patent number: 9193908Abstract: 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: GrantFiled: December 9, 2011Date of Patent: November 24, 2015Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Kenji Hirata, Hiroki Ookawa
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Patent number: 9139777Abstract: The present invention provides a composition of liquid crystal medium. The composition of liquid crystal medium includes a negative type liquid crystal material, a stabilizer, one or more than one type of polymerizable monomers capable of forming a polymerization under ultraviolent irradiation and a polymerizable photo-initiator; wherein a structural formula of the polymerizable monomers comprises at least one aromatic ring and at least a polymerizable group connected to the aromatic ring. In the composition of liquid crystal medium according to the present invention, a structural formula of the polymerizable monomers includes at least one aromatic ring and at least a polymerizable group connected to the aromatic ring, and a structural formula of the polymerizable photo-initiator includes a benzene ring or cyclohexane so as to provide a broader conjugate system than conventional photo-initiators.Type: GrantFiled: September 4, 2013Date of Patent: September 22, 2015Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventors: Xinhui Zhong, Kuancheng Lee
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Patent number: 9039929Abstract: A nematic liquid crystal composition of the present invention is used in liquid crystal display devices of the TN mode, OCB mode, ECB mode, IPS mode, or VA-IPS mode. The liquid crystal composition has positive dielectric anisotropy. Since the refractive index anisotropy and the nematic phase-isotropic liquid phase transition temperature are decreased and the increase in the lower limit temperature of the nematic phase is suppressed, the viscosity of the liquid crystal composition is sufficiently low without degrading the nematic phase temperature range. The liquid crystal composition also offers excellent features such as high-speed response, good display quality, and less display failures and is thus suitable as a practical liquid crystal composition.Type: GrantFiled: July 31, 2012Date of Patent: May 26, 2015Assignee: DIC CORPORATIONInventors: Masakazu Kaneoya, Kiyofumi Takeuchi, Masashi Osawa, Kenta Tojo, Tetsuo Kusumoto
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Publication number: 20150115199Abstract: The present description relates to a polymerizable liquid crystal compound, a polymerizable liquid crystal composition including the same, and an optically anisotropic body.Type: ApplicationFiled: April 19, 2013Publication date: April 30, 2015Inventors: Dai Seung Choi, Sung Ho Chun, Dong Woo Yoo, Mi Ra Hong, Kyung Chang Seo, Hyeong Bin Jang, Jung Hyun Kim, Min Hyung Lee, Eun Seok Park
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Patent number: 9005477Abstract: A liquid crystal composition containing a polymerizable compound according to the present invention is used in a liquid crystal display element in which a liquid crystal alignment capability is provided through polymerization. The liquid crystal composition contains a polymerizable compound that polymerizes without a photopolymerization initiator or with an extremely small amount of photopolymerization initiator. Therefore, the alignment properties after the polymerization become more stable and the display characteristics do not degrade. Thus, the polymerizable compound is suitable as a practical component of the liquid crystal composition. A liquid crystal display element that uses the liquid crystal composition containing a polymerizable compound according to the present invention can be suitably used for VA and IPS liquid crystal display elements.Type: GrantFiled: November 24, 2010Date of Patent: April 14, 2015Assignee: DIC CorporationInventors: Takeshi Kuriyama, Shinichi Hirata, Syoutaro Kawakami
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Patent number: 9005478Abstract: A liquid crystal composition comprising a chiral dopant compound represented by the following structure (Structure 1): wherein: R1 and R2 are independently hydrogen, —(C?O)R9, —(C?O)R10, alkyl, aryl, alkaryl, alkenyl, cycloalkyl, alkoxyaryl, or heterocyclic all either substituted or unsubstituted, or combine to form a carbocyclic or heterocyclic ring; R3 is hydrogen, halogen, cyano, alkoxy, NHCOR9, NHSO2R9, COOR9, OCOR9, aryl, alkyl, alkenyl, cycloalkyl, or heterocyclic all either substituted or unsubstituted; R4 is hydrogen, alkyl, aryl, alkenyl, cycloalkyl, or heterocyclic all either substituted or unsubstituted; R5, R6, R7, and R8 are independently hydrogen, halogen, cyano, alkoxy, NHCOR9, NHSO2R9, COOR9, OCOR9, aryl, alkyl, alkenyl, cycloalkyl, alkoxyaryl or heterocyclic all either substituted or unsubstituted, or combine with each other, or R5 can combine with R4 to form a carbocyclic or heterocyclic ring; R9 and R10 are independently alkyl, alkoxy, aryl, naphthyl, styryl, alkenyl, cycloalkyl, alkoType: GrantFiled: January 6, 2014Date of Patent: April 14, 2015Assignees: Kent Displays Incorporated, Kent State UniversityInventors: Donald R. Diehl, Erica N. Montbach
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Patent number: 9005720Abstract: Disclosed are liquid-crystal (LC) media for use in LC displays of the PS (polymer stabilized) or PSA (polymer sustained alignment) type which contain a liquid-crystal (LC) mixture that contains one or more compounds of formula IType: GrantFiled: April 23, 2010Date of Patent: April 14, 2015Assignee: Merck Patent GmbHInventors: Achim Goetz, Melanie Klasen-Memmer, Stephan Derow, Sabine Schoen, Peter Best
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Patent number: 8992796Abstract: The present invention provides a polymerizable liquid crystal composition containing polymerizable liquid crystal compounds and a photoinitiator, wherein the photoinitiator has a light absorption band in a wavelength range of 280 to 400 nm; and at least one of the polymerizable liquid crystal compounds has a light absorption band in a wavelength range of 320 to 400 nm or a light-absorbing agent having a light absorption band in a wavelength range of 280 to 400 nm is contained. Thus, there is provided a material that can be cured in the air without replacing the atmosphere with an inert gas during irradiation with ultraviolet rays and that can achieve the characteristics required for a biaxial film, such as a sufficiently large front phase difference.Type: GrantFiled: February 18, 2010Date of Patent: March 31, 2015Assignee: DIC CorporationInventors: Hiroshi Hasebe, Yasuhiro Kuwana, Isa Nishiyama
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Publication number: 20150076405Abstract: A liquid crystal composition and a liquid crystal display wherein the liquid crystal composition includes: a compound of general formula (I) including 1%-50% of the total weight of the liquid crystal composition; a compound of general formula (II) including 1%-60% of the total weight of the liquid crystal composition; a compound of general formula (III) including 1%-60% of the total weight of the liquid crystal composition; and a compound of general formula (IV) including 0-50% of the total weight of the liquid crystal composition—wherein the liquid crystal composition has a suitably wider nematic phase scope, a suitable optical anisotropy, a favorable low-temperature storage stability a faster response speed, can be used for outdoor work, has a good image display effect, and substantially free of streaking phenomenon.Type: ApplicationFiled: April 10, 2013Publication date: March 19, 2015Inventors: Wenming Han, Yudong Tan, Dingfu Ma, Biao Hu, Yiming Wang, Zhaoyuan Chen, Shizhi You
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Publication number: 20150079380Abstract: To suppress a phenomenon where an optical axis of the optically anisotropic layer is tilted when the optically anisotropic layer is produced by using a liquid crystalline compound showing smectic phase as a materials showing a higher level of orderliness. An optically anisotropic layer wherein a polymerizable composition, containing one or more polymerizable rod-like liquid crystal compound showing a smectic phase, is fixed in a state of smectic phase, and a direction of maximum refractive index of the optically anisotropic layer is inclined at 10° or smaller to the surface of the optically anisotropic layer, a method for manufacturing the same, a laminate and a method for manufacturing the same, a polarizing plate, a liquid crystal display device, and an organic EL display device.Type: ApplicationFiled: September 10, 2014Publication date: March 19, 2015Applicant: FUJIFILM CORPORATIONInventors: Ayako MURAMATSU, Shinnosuke SAKAI, Teruki NIORI, Shinichi MORISHIMA
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Publication number: 20150060732Abstract: An object is to provide a liquid crystal compound satisfying at least one of physical properties such as a high stability to heat and light, a high clearing point, a low minimum temperature of a liquid crystal phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a suitable elastic constant and an excellent compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. A solution is a compound represented by formula (1). In formula 1, R1 is alkyl having 1 to 10 carbons, for example; ring A1 and ring A2 are independently 1,4-cyclohexylene or 1,4-phenylene; Z1 and Z2 are independently a single bond or —CF2O—; L1 and L2 are halogen; and a is 1 or 2.Type: ApplicationFiled: August 27, 2014Publication date: March 5, 2015Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Yasuyuki GOTOH, Masakazu YANO
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Patent number: 8968597Abstract: 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: GrantFiled: August 6, 2013Date of Patent: March 3, 2015Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Yoshimasa Furusato, Subaru Kawasaki, Eriko Kurihara
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Patent number: 8962104Abstract: 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: GrantFiled: September 13, 2011Date of Patent: February 24, 2015Assignees: Sharp Kabushiki Kaisha, DIC CorporationInventors: Toshihiro Matsumoto, Yuichi Kawahira, Masayuki Kanehiro, Shoutarou Kawakami, Gou Sudou
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Patent number: 8961823Abstract: The compound represented by formula (1). For example, the rings A1, A2, A3 and A4 are 1,4-phenylene, Z1 and Z2 are alkylene having 1 to 10 carbons in which at least one —CH2— may be replaced by —O— or —CH?CH—; L1, L2 and L3 are a single bond, —COO— or —CH?CH—; G1 and G2 are —O—; s, t and u are 0 or 1; and P1 and P2 is the group (P-1), the group (P-2) or the group (P-3). M1 and M2 are hydrogen or methyl.Type: GrantFiled: December 20, 2012Date of Patent: February 24, 2015Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Yasuyuki Gotoh, Mayumi Goto
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Patent number: 8956549Abstract: 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: August 20, 2013Date of Patent: February 17, 2015Assignee: 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: 8956705Abstract: A system having a ferroelectric liquid host material and a small amount of polymer additive is provided. In an embodiment, the polymer additive improves the physical characteristics of the system. In an embodiment, the system can be used in FLC applications.Type: GrantFiled: January 28, 2010Date of Patent: February 17, 2015Assignees: California Institute of Technology, LC Vision, LLCInventors: Julia A. Kornfield, Michael Wand, Zuleikha Kurji
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Publication number: 20150034871Abstract: An object is to provide a polymerizable compound having high polymerization reactivity, a high conversion ratio and high solubility in a liquid crystal composition, a polymerizable composition containing the compound, a liquid crystal composite prepared from the composition, and a liquid crystal display device having the composite. A solution is a polymerizable compound represented by formula (1). In the formula, for example, P1 and P2 are —OCO—(CH3)C?CH2; S1 and S2 are a single bond; ring A1, ring A2 and ring A3 are 1,4-phenylene; Z1, Z2 and Z3 are a single bond; two of G is —CH? or —N?; and a is 0 or 1.Type: ApplicationFiled: July 31, 2014Publication date: February 5, 2015Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Yasuyuki GOTOH, Teizi SATOU
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Publication number: 20150036095Abstract: The invention relates to a liquid-crystalline medium which contains at least two polymerisable compounds or reactive mesogens (RM) and at least one compound selected from the group of compounds of the formula IIA, IIB and IIC, in which R2A, R2B, R2C, L1-6, ring B, Z2, Z2, p, q and v have the meanings indicated in Claim 1, and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PALC, FFS, PS-FFS, IPS or PS-IPS effect, especially for the use in LC displays of the PS (polymer stabilised) or PSA (polymer sustained alignment) type.Type: ApplicationFiled: February 12, 2013Publication date: February 5, 2015Applicant: Merck Patent GmbHInventors: Ji-Won Jeong, Yong-Kuk Yun, Dong-Mee Song, Jung-Min Lee
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Publication number: 20150034872Abstract: Provided are liquid crystal compounds and mixtures incorporating the same. The liquid crystal compounds of the invention generally comprise a cyclopentane group and at least two other rings. In one embodiment, the liquid crystal compounds of the invention comprise a cyclopentane group and at least two other rings, one of which is a fused ring system.Type: ApplicationFiled: August 11, 2014Publication date: February 5, 2015Inventors: Xinhua Chen, R. Amaranatha Reddy
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Patent number: 8940184Abstract: 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 sustained”) or PSA (“polymer sustained alignment”) type.Type: GrantFiled: August 30, 2010Date of Patent: January 27, 2015Assignee: MERCK PATENT GmbHInventors: Andreas Taugerbeck, Achim Goetz
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Patent number: 8940185Abstract: To provide a novel liquid crystal compound having general physical properties necessary for the compound, namely, stability to heat, light and so forth, a wide temperature range of a liquid crystal phase, a high clearing point, a good compatibility with other compounds, a large refractive index anisotropy, a large dielectric anisotropy and a small viscosity. The liquid crystal compound is provided as compound (1): wherein, for example, R1 is alkyl having 1 to 20 carbons; ring A1 and ring B1 are 1,4-cyclohexylene or 1,4-phenylene; Z1 and Z2 are a single bond, —CH2CH2—, —CH?CH— or —C?C—; L1 is fluorine; L2, Y1 and Y2 are hydrogen, fluorine or chlorine; and X1 is halogen, —C?N or alkyl having 1 to 10 carbons, and in the alkyl, arbitrary —CH2— may be replaced by —O— or —S—, and m is 1 and n is 0.Type: GrantFiled: December 20, 2010Date of Patent: January 27, 2015Assignees: JNC Corporation, JNC Petrochemical CorporationInventor: Hiroyuki Tanaka
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Patent number: 8940375Abstract: The present invention relates to a liquid-crystal (LC) display of the PS (polymer stabilized) or PSA (polymer sustained alignment) type, and to polymerizable compounds and LC media for use in PS (polymer stabilized) and PSA displays.Type: GrantFiled: July 3, 2008Date of Patent: January 27, 2015Assignee: Merck Patent GmbHInventors: Matthias Bremer, Georg Bernatz