Including Fused Or Bridged Rings Patents (Class 252/299.62)
  • Patent number: 11091699
    Abstract: 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: Grant
    Filed: December 20, 2018
    Date of Patent: August 17, 2021
    Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD
    Inventors: Jinsong Meng, Guoliang Yun, Zhian Liang, Xing Zhang, Ke-Lun Shu, Yongfeng Bao, Ruixiang Liang, Ming Li
  • Patent number: 11078420
    Abstract: 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: Grant
    Filed: December 20, 2018
    Date of Patent: August 3, 2021
    Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.
    Inventors: Jinsong Meng, Ming Li, Kui Wang, Xing Zhang, Guoliang Yun, Zhian Liang, Yiping Wang, Gang Wen
  • Patent number: 11060029
    Abstract: 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: Grant
    Filed: November 15, 2017
    Date of Patent: July 13, 2021
    Assignee: MERCK PATENT GMBH
    Inventors: Atsutaka Manabe, Constanze Brocke
  • Patent number: 11001757
    Abstract: 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: Grant
    Filed: August 3, 2018
    Date of Patent: May 11, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Sazzadur Rahman Khan, Hiep Luu
  • Patent number: 10995273
    Abstract: 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: Grant
    Filed: December 7, 2017
    Date of Patent: May 4, 2021
    Assignee: Merck Patent GmbH
    Inventors: Dmitry Ushakov, Kaja Christina Deing
  • Patent number: 10968391
    Abstract: 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: Grant
    Filed: May 3, 2019
    Date of Patent: April 6, 2021
    Assignee: DAXIN MATERIALS CORP.
    Inventors: Chih-Yuan Lo, Chung-Hsien Wu, Chen Wang, Chun-Chih Wang
  • Patent number: 10954445
    Abstract: 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: Grant
    Filed: September 24, 2018
    Date of Patent: March 23, 2021
    Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.
    Inventors: Ke-Lun Shu, RuiXiang Liang, YanLi Dong, YunXia Qiao, Lei Zhao, HuBo Zhang
  • Patent number: 10662378
    Abstract: 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: Grant
    Filed: March 12, 2018
    Date of Patent: May 26, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Ayako Mori, Hiroyuki Tanaka
  • Patent number: 10464897
    Abstract: 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: Grant
    Filed: June 3, 2016
    Date of Patent: November 5, 2019
    Assignee: Dana-Farber Cancer Institute, Inc.
    Inventors: James Bradner, Michael Erb, Jun Qi
  • Patent number: 10421906
    Abstract: 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: Grant
    Filed: July 23, 2015
    Date of Patent: September 24, 2019
    Assignee: DIC CORPORATION
    Inventors: Kazunori Maruyama, Yoshinori Iwashita, Shinji Ogawa
  • Patent number: 10414980
    Abstract: 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: Grant
    Filed: July 23, 2015
    Date of Patent: September 17, 2019
    Assignee: DIC CORPORATION
    Inventors: Kazunori Maruyama, Takashi Kitsunai, Shinji Ogawa
  • Patent number: 10323187
    Abstract: 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: Grant
    Filed: September 28, 2017
    Date of Patent: June 18, 2019
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventor: Hiroyuki Tanaka
  • Patent number: 10253258
    Abstract: 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: Grant
    Filed: July 28, 2015
    Date of Patent: April 9, 2019
    Assignee: DIC CORPORATION
    Inventors: Shirou Taniguchi, Joji Kawamura
  • Patent number: 10214690
    Abstract: A liquid crystal composition including a liquid crystal compound represented by Formula 1:
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: February 26, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung-Hwan Hong, Eun Kyung Koh, Myung-Eun Kim, Fusayuki Takeshita, Ji Hong Bae
  • Patent number: 10203560
    Abstract: 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: Grant
    Filed: June 22, 2016
    Date of Patent: February 12, 2019
    Assignees: 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
  • Patent number: 10087371
    Abstract: A liquid crystal composition and a liquid crystal display, the composition including a liquid crystal compound represented by Chemical Formula 1 below:
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: October 2, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung-Hwan Hong, Hoi-Lim Kim, Da Hye Cho, Young Mi Cho
  • Patent number: 10059880
    Abstract: 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: Grant
    Filed: July 14, 2014
    Date of Patent: August 28, 2018
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventor: Yoshiharu Hirai
  • Patent number: 10056548
    Abstract: The invention concerns polymers, electroluminescence devices, compositions and their use.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: August 21, 2018
    Assignee: Merck Patent GmbH
    Inventors: Junyou Pan, Martin Engel, Nils Koenen, Aurélie Ludemann
  • Patent number: 9567526
    Abstract: 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: Grant
    Filed: June 25, 2014
    Date of Patent: February 14, 2017
    Assignee: MERCK PATENT GMBH
    Inventors: Martin Engel, Eveline Baron, Constanze Brocke, Helga Haas, Stephan Derow, Christoph Marten, Qiong Tong
  • Patent number: 9469809
    Abstract: 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: Grant
    Filed: January 25, 2013
    Date of Patent: October 18, 2016
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Kazuhiko Saigusa, Yoshimasa Furusato
  • Patent number: 9434882
    Abstract: 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: Grant
    Filed: November 8, 2011
    Date of Patent: September 6, 2016
    Assignee: MERCK PATENT GMBH
    Inventors: Mark Goebel, Atsutaka Manabe, Elvira Montenegro, Detlef Pauluth
  • Patent number: 9411082
    Abstract: 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: Grant
    Filed: June 17, 2014
    Date of Patent: August 9, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Beong-hun Beon, Seungbeom Park, Jihye Kim
  • Patent number: 9250476
    Abstract: 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: Grant
    Filed: September 5, 2012
    Date of Patent: February 2, 2016
    Assignee: DIC CORPORATION
    Inventors: Shinji Ogawa, Yoshinori Iwashita, Takeshi Kuriyama
  • Patent number: 9222023
    Abstract: 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: Grant
    Filed: April 10, 2013
    Date of Patent: December 29, 2015
    Assignee: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Wenming Han, Yudong Tan, Dingfu Ma, Biao Hu, Yiming Wang, Zhaoyuan Chen, Shizhi You
  • Patent number: 9193908
    Abstract: 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: Grant
    Filed: December 9, 2011
    Date of Patent: November 24, 2015
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Kenji Hirata, Hiroki Ookawa
  • Patent number: 9139777
    Abstract: 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: Grant
    Filed: September 4, 2013
    Date of Patent: September 22, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Xinhui Zhong, Kuancheng Lee
  • Patent number: 9039929
    Abstract: 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: Grant
    Filed: July 31, 2012
    Date of Patent: May 26, 2015
    Assignee: DIC CORPORATION
    Inventors: Masakazu Kaneoya, Kiyofumi Takeuchi, Masashi Osawa, Kenta Tojo, Tetsuo Kusumoto
  • Publication number: 20150115199
    Abstract: The present description relates to a polymerizable liquid crystal compound, a polymerizable liquid crystal composition including the same, and an optically anisotropic body.
    Type: Application
    Filed: April 19, 2013
    Publication date: April 30, 2015
    Inventors: 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
  • Patent number: 9005478
    Abstract: 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, alko
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: April 14, 2015
    Assignees: Kent Displays Incorporated, Kent State University
    Inventors: Donald R. Diehl, Erica N. Montbach
  • Patent number: 9005477
    Abstract: 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: Grant
    Filed: November 24, 2010
    Date of Patent: April 14, 2015
    Assignee: DIC Corporation
    Inventors: Takeshi Kuriyama, Shinichi Hirata, Syoutaro Kawakami
  • Patent number: 9005720
    Abstract: 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 I
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: April 14, 2015
    Assignee: Merck Patent GmbH
    Inventors: Achim Goetz, Melanie Klasen-Memmer, Stephan Derow, Sabine Schoen, Peter Best
  • Patent number: 8992796
    Abstract: 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: Grant
    Filed: February 18, 2010
    Date of Patent: March 31, 2015
    Assignee: DIC Corporation
    Inventors: Hiroshi Hasebe, Yasuhiro Kuwana, Isa Nishiyama
  • Publication number: 20150076405
    Abstract: 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: Application
    Filed: April 10, 2013
    Publication date: March 19, 2015
    Inventors: Wenming Han, Yudong Tan, Dingfu Ma, Biao Hu, Yiming Wang, Zhaoyuan Chen, Shizhi You
  • Publication number: 20150079380
    Abstract: 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: Application
    Filed: September 10, 2014
    Publication date: March 19, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Ayako MURAMATSU, Shinnosuke SAKAI, Teruki NIORI, Shinichi MORISHIMA
  • Publication number: 20150060732
    Abstract: 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: Application
    Filed: August 27, 2014
    Publication date: March 5, 2015
    Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventors: Yasuyuki GOTOH, Masakazu YANO
  • Patent number: 8968597
    Abstract: 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: Grant
    Filed: August 6, 2013
    Date of Patent: March 3, 2015
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Yoshimasa Furusato, Subaru Kawasaki, Eriko Kurihara
  • Patent number: 8962104
    Abstract: 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: Grant
    Filed: September 13, 2011
    Date of Patent: February 24, 2015
    Assignees: Sharp Kabushiki Kaisha, DIC Corporation
    Inventors: Toshihiro Matsumoto, Yuichi Kawahira, Masayuki Kanehiro, Shoutarou Kawakami, Gou Sudou
  • Patent number: 8961823
    Abstract: 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: Grant
    Filed: December 20, 2012
    Date of Patent: February 24, 2015
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Yasuyuki Gotoh, Mayumi Goto
  • Patent number: 8956549
    Abstract: 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: Grant
    Filed: August 20, 2013
    Date of Patent: February 17, 2015
    Assignee: Merck Patent GmbH
    Inventors: Seung-Eun Lee, Eun Young Kim, Dong-Mee Song, Kyung-Ah Park, Sang-Hyun Park, Eun-Kyu Lee
  • Patent number: 8956705
    Abstract: 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: Grant
    Filed: January 28, 2010
    Date of Patent: February 17, 2015
    Assignees: California Institute of Technology, LC Vision, LLC
    Inventors: Julia A. Kornfield, Michael Wand, Zuleikha Kurji
  • Publication number: 20150034872
    Abstract: 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: Application
    Filed: August 11, 2014
    Publication date: February 5, 2015
    Inventors: Xinhua Chen, R. Amaranatha Reddy
  • Publication number: 20150034871
    Abstract: 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: Application
    Filed: July 31, 2014
    Publication date: February 5, 2015
    Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventors: Yasuyuki GOTOH, Teizi SATOU
  • Publication number: 20150036095
    Abstract: 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: Application
    Filed: February 12, 2013
    Publication date: February 5, 2015
    Applicant: Merck Patent GmbH
    Inventors: Ji-Won Jeong, Yong-Kuk Yun, Dong-Mee Song, Jung-Min Lee
  • Patent number: 8940375
    Abstract: 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: Grant
    Filed: July 3, 2008
    Date of Patent: January 27, 2015
    Assignee: Merck Patent GmbH
    Inventors: Matthias Bremer, Georg Bernatz
  • Patent number: 8940185
    Abstract: 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: Grant
    Filed: December 20, 2010
    Date of Patent: January 27, 2015
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventor: Hiroyuki Tanaka
  • Patent number: 8940184
    Abstract: 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: Grant
    Filed: August 30, 2010
    Date of Patent: January 27, 2015
    Assignee: MERCK PATENT GmbH
    Inventors: Andreas Taugerbeck, Achim Goetz
  • Publication number: 20150021520
    Abstract: Disclosed is a liquid crystal compound. The compound has a general structural formula as shown by formula I. Such a compound has good thermal and UV stability, large positive dielectric anisotropy ??, and can achieve a low threshold voltage when used in optics, thereby having great significance to the fast response of display devices, and therefore being very suitable for formulating a liquid crystal mixture. A liquid crystal mixture containing such a liquid crystal unit can be applied to various display devices, and is especially suitable for TN-TFT and STN display devices, but can also be used in IPS (in-plane switching) and VA (vertically aligned) display devices.
    Type: Application
    Filed: November 21, 2012
    Publication date: January 22, 2015
    Applicant: Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd.
    Inventors: Guoliang Yun, Gang Wen, Zhian Liang, Ruimao Hua, Kui Wang, Xing Zhang, Zhiguo Xia, Yaohua Han
  • Patent number: 8920674
    Abstract: To provide a liquid crystal composition satisfying at least one characteristic including a high maximum temperature of a nematic phase, a low minimum temperature thereof, a small viscosity, a large optical anisotropy, 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; and an AM device having a short response time, a large voltage holding ratio and contrast ratio and a long life; a liquid crystal composition has a negative dielectric anisotropy and contains a compound having a low minimum temperature as a first component and a compound having a large negative dielectric anisotropy as a second component, and may contain a compound having a small viscosity as a third component and a compound having a large negative dielectric anisotropy as a fourth component, and a liquid crystal display device containing the composition.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 30, 2014
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Takayoshi Yanai, Norikatsu Hattori, Hiroyuki Tanaka
  • Publication number: 20140362335
    Abstract: A system having a vertically-aligned negative delta E nematic liquid crystal host material and a small amount of liquid crystal polymer is provided. The liquid crystal polymer improves the switching speed of a vertically aligned nematic system without sacrificing contrast or viewing angle.
    Type: Application
    Filed: August 25, 2014
    Publication date: December 11, 2014
    Applicants: LC VISION, LLC, CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Julia A. KORNFIELD, Michael WAND, Zuleikha KURJI
  • Patent number: 8906260
    Abstract: 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: Grant
    Filed: February 28, 2013
    Date of Patent: December 9, 2014
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventor: Yasuyuki Sasada