Including Heterocyclic Ring Patents (Class 252/299.61)
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Patent number: 9617374Abstract: The invention provides a high-molecular liquid crystal material for a frame of a Liquid Crystal Display (LCD), which is prepared by cross-linking and polymerizing a group which includes terephthalic acid and an alcohol which includes carbon-carbon double bonds, wherein, the group which includes terephthalic acid is any one of terephthalic acid, ortho-alkyl-terephthalic acid or meta-alkyl-terephthalic acid; the alcohol which includes carbon-carbon double bonds is any one of vinyl alcohol, vinyl alcohol with alkyl, or conjugated vinyl alcohol. The high-molecular liquid crystal material improves the steric hindrance among the molecules, and prevents from reacting with the liquid crystal small molecules to form a coordination complex; the high-molecular liquid crystal material has high stability, and cannot form a solid state under a certain molecular weight, thus improving the flexibility and being beneficial for the coating process.Type: GrantFiled: June 30, 2013Date of Patent: April 11, 2017Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTDInventor: Liang Xu
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Patent number: 9612445Abstract: The invention provides a switchable lens element comprising an inverse lens structure formed by an isotropic material and an isotropic cover sheet wherein the resulting lens structure comprises an electrically switchable polymer stabilized blue phase LC medium having the same refractive index in its isotropic state. Furthermore, the present invention relates to the use of such a lens element in an electro-optical device i.e. an autostereoscopic display device operable in a 2D mode or a 3D mode, in which a lens arrangement directs the output from different pixels to different spatial positions to enable a stereoscopic image to be viewed and wherein the lens arrangement comprises a plurality of said switchable lens elements.Type: GrantFiled: October 29, 2013Date of Patent: April 4, 2017Assignee: Merck Patent GmbHInventors: Michael Wittek, Helmut Haensel
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Patent number: 9611429Abstract: A liquid crystal medium has stability to heat, light and so forth, and significantly high dielectric anisotropy, and develops an optically isotropic liquid crystal phase. Moreover, various kinds of optical devices can be used in a wide temperature range and have a short response time, a large contrast ratio and low driving voltage. A liquid crystal composition contains achiral component T containing at least one compound 1 represented by formula (1) and a chiral agent, and develops the optically isotropic liquid crystal phase. In formula (1), for examples, R1 is alkyl, L1 and L2 are each independently fluorine or hydrogen, and X1 is halogen.Type: GrantFiled: May 22, 2014Date of Patent: April 4, 2017Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Hitoshi Tobata, Koki Sago, Shin-Ichi Yamamoto, Yasuhiro Haseba
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Patent number: 9605208Abstract: A liquid crystal composition exhibits a positive dielectric anisotropy and sufficiently low viscosity without decreasing or increasing refractive index anisotropy or nematic phase-isotropic liquid phase transition temperature, and does not cause display failures. The liquid crystal composition contains one or more compounds selected from compounds represented by general formula (LC0) and one or more compounds selected from a group of compounds represented by general formula (LC1) to general formula (LC5), in which the liquid crystal composition contains one or more compounds in which at least one of A01, A02, and A11 to A42 in general formulae (LC0) to (LC4) represents a tetrahydropyran-2,5-diyl group.Type: GrantFiled: July 24, 2013Date of Patent: March 28, 2017Assignee: DIC CORPORATIONInventors: Masakazu Kaneoya, Kiyofumi Takeuchi, Masashi Osawa, Kenta Tojo, Tetsuo Kusumoto
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Patent number: 9605209Abstract: A liquid crystal composition and an AM LCD device containing the same are described. The liquid crystal composition has a negative dielectric anisotropy, contains a specific compound having a negatively large dielectric anisotropy in a specific range of proportion as a first component, and a specific compound having a small viscosity as a second component, and may also contain a specific compound having a high maximum temperature or a small viscosity as a third component, a specific compound having a negative dielectric anisotropy as a fourth component, and/or a specific compound having a polymerizable group as an additive component.Type: GrantFiled: January 13, 2015Date of Patent: March 28, 2017Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Masayuki Saito, Yoshimasa Furusato
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Patent number: 9599829Abstract: There is provided a method for producing a birefringent lens for a stereoscopic image display using a birefringent material having two or more liquid crystal compounds each having at least one polymerizable functional group. The method includes the steps of providing the birefringent lens material; applying the birefringent lens material onto an alignment layer that has been subjected to an alignment treatment in a uniaxial direction, and forming the coating film into a lens shape by conducting curing with ultraviolet light.Type: GrantFiled: October 14, 2014Date of Patent: March 21, 2017Assignee: DIC CORPORATIONInventors: Yasuhiro Kuwana, Hiroshi Hasebe
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Patent number: 9598574Abstract: The invention is directed to a polymeric composition comprising a first polymer (in particular HPP) and a liquid crystal thermoset (LCT) network that interpenetrates said first polymer, which LCT network comprises LCT oligomers that are at least partly polymerized, as well as to a method for preparing such. The polymeric composition of the invention does not separate into two distinct polymer phases (first polymer and LCT) over time and has improved thermo-mechanical properties. In particular, the invention may be used to improve the properties of HPP. The polymeric composition can be used as a high-resistant material, in particular having improved heat resistance.Type: GrantFiled: April 16, 2014Date of Patent: March 21, 2017Assignee: ALLOTROPICA TECHNOLOGIES INC.Inventor: Theodorus Jacobus Dingemans
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Patent number: 9587175Abstract: The present invention relates to a nematic liquid crystal composition useful as an electro-optic liquid crystal display material and having a positive dielectric anisotropy (??). The liquid crystal composition has refractive index anisotropy (?n) adjusted to a desired level, a sufficiently low viscosity (?), and a positive dielectric anisotropy (??) while degradation of the temperature range of the nematic phase is avoided by suppressing the decrease in nematic phase-isotropic liquid phase transition temperature (Tni) and the increase in lower limit temperature of the nematic phase. The liquid crystal composition contains one or more compounds selected from compounds represented by general formula (LC0) and one or more compounds selected from a group of compounds represented by general formula (LC1) to general formula (LC5).Type: GrantFiled: July 24, 2013Date of Patent: March 7, 2017Assignee: DIC CORPORATIONInventors: Masakazu Kaneoya, Kiyofumi Takeuchi, Masashi Osawa, Kenta Tojo, Tetsuo Kusumoto
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Patent number: 9580654Abstract: It is an object of the present invention to provide a liquid crystal composition having a positive ?? as well as a liquid crystal phase in a wide temperature range, good solubility at low temperature, excellent adaptability to an ODF process, high specific resistance, a high voltage holding ratio, and stability to heat and light. In order to achieve this object, a liquid crystal composition containing a compound represented by Formula (i) and a compound represented by Formula (ii) is provided.Type: GrantFiled: March 1, 2013Date of Patent: February 28, 2017Assignee: DIC CORPORATIONInventors: Joji Kawamura, Makoto Negishi, Yoshinori Iwashita
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Patent number: 9513863Abstract: Embodiments of the present invention relate to integrated modular display panels. In one embodiment, modular display panel includes a casing having a recess. The casing includes locking points for use in attachment to an adjacent casing of another modular display panel. A printed circuit board is disposed in the recess and a plurality of LEDs attached to the printed circuit board. A driver circuit is attached to the printed circuit board. A heat sink is disposed between a back side of the casing and the printed circuit board. The heat sink thermally contacts the back side of the casing and the printed circuit board. A framework of louvers is disposed over the printed circuit board. The framework of louvers is disposed between rows of the LEDs. The framework of louvers is attached to the printed circuit board using an adhesive.Type: GrantFiled: May 23, 2016Date of Patent: December 6, 2016Assignee: ULTRAVISION TECHNOLOGIES, LLCInventor: William Y. Hall
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Patent number: 9512102Abstract: 4,6-difluorodibenzothiophene compounds of formula I the preparation thereof, the use thereof as components in liquid-crystalline media and electro-optical display elements which contain the liquid-crystalline media.Type: GrantFiled: April 22, 2015Date of Patent: December 6, 2016Assignee: MERCK PATENT GMBHInventors: Volker Reiffenrath, Harald Hirschmann
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Patent number: 9505979Abstract: The present invention relates to a polymerizable liquid crystal compound, a liquid crystal composition including the same, and an optical film including the same. The polymerizable liquid crystal compound according to the present invention has at least two functional groups making intermolecular interaction possible in its molecule, and thus it is possible to form a liquid crystal layer having high orientation stability by coating the composition including the same. According to this, the optical film prepared by using the composition can be suitably used in anti-reflection films and so on for liquid crystal displays or OLED displays.Type: GrantFiled: September 19, 2014Date of Patent: November 29, 2016Assignee: LG CHEM, LTD.Inventors: Min Hyung Lee, Young Jee Song, Sung-Ho Chun, Kyung Chang Seo, Hyeong Bin Jang, Ji Young Choi
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Patent number: 9499744Abstract: A liquid crystal compound is provided that satisfies at least one physical property, including high stability to ultraviolet light and heat, a high clearing point, low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy and excellent compatibility with other liquid crystal compounds. A liquid crystal composition containing the compound, and a liquid crystal display device including the composition is also provided. The composition contains the compound, and the liquid-crystal display device includes the composition: wherein, for example, Ra and Rb are alkyl; rings A1, A2, A3 and A4 are 1,4-cyclohexylene or 1,4-phenylene; and P is a divalent group represented by formula (pr-1) or (pr-2): wherein, for example, Z1, Z2, Z3 and Z4 are a single bond or alkylene; and a, b, c and d are 0, 1 or 2, and a sum of a, b, c and d is 5 or less.Type: GrantFiled: June 11, 2015Date of Patent: November 22, 2016Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Takahiro Kobayashi, Takahiro Kubo, Yasuyuki Sasada
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Patent number: 9487701Abstract: A liquid crystal composition satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large positive dielectric anisotropy, a large specific resistance, a large elastic constant, a high stability to ultraviolet light and heat, or is suitably balanced between at least two of the characteristics. An AM device has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition includes a specific two-ring compound having a high maximum temperature and a large elastic constant as a first component, a specific compound having a large dielectric anisotropy as a second component, and has a nematic phase. The liquid crystal display device contains this composition.Type: GrantFiled: September 1, 2010Date of Patent: November 8, 2016Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Norikatsu Hattori, Takashi Hiraoka, Taketo Maeda, Masayuki Saito
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Patent number: 9487705Abstract: It is an object of the present invention to provide a liquid crystal composition having a positive ??, the liquid crystal composition also having a liquid crystal phase in a wide temperature range, a good resistance to resolution at low temperature, an excellent adaptability to an ODF process, a high specific resistance and voltage holding ratio, and stability to heat and light. In order to achieve this object, a liquid crystal composition containing compounds represented by Formulae (i) and (ii) is provided. (where Ri1 represents an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms).Type: GrantFiled: March 25, 2013Date of Patent: November 8, 2016Assignee: DIC CORPORATIONInventors: Joji Kawamura, Makoto Negishi, Yoshinori Iwashita
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Patent number: 9487703Abstract: A liquid crystal composition and an AM-type liquid crystal display device including the same are described. The liquid crystal composition has a nematic phase, contains a specific compound having a large positive dielectric anisotropy as a first component, and a specific compound having a small viscosity as a second component, and may also contain at least one of a specific compound having a high maximum temperature or a small viscosity as a third component, a specific compound having a large positive dielectric anisotropy as a fourth component, and a specific compound having a negative dielectric anisotropy as a fifth component.Type: GrantFiled: December 5, 2014Date of Patent: November 8, 2016Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Masayuki Saito, Yoshimasa Furusato
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Patent number: 9481828Abstract: A liquid crystal compound containing cyclobutyl and a linking group difluoromethyleneoxy, and a preparation method and use thereof are disclosed. The compound is as shown in Formula I. The liquid crystal compound containing cyclobutyl as a terminal group and difluoromethyleneoxy (—CF2O—) as a linking group in the molecular structure of Formula I according to the present invention, has not only a high dielectric anisotropy, but also importantly an extremely fast response speed and a high clearing point, which are of great significance for the formulation of a liquid crystal mixture.Type: GrantFiled: November 26, 2013Date of Patent: November 1, 2016Assignee: Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd.Inventors: Guoliang Yun, Ruimao Hua, Kui Wang, Wenhai Lv, Jian Wang, Yaohua Han, Yunxia Qiao
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Patent number: 9475990Abstract: The instant invention relates to mesogenic media comprising one or more compounds selected from the group of compounds of formulae M-I and M-II wherein the parameters are as specified in the text, preferably to mesogenic media showing a blue phase, preferably stabilized by a polymer, and their use in electro-optical light modulation elements and their respective use in displays, as well as to such devices.Type: GrantFiled: July 13, 2012Date of Patent: October 25, 2016Assignee: MERCK PATENT GMBHInventors: Michael Wittek, Norihiko Tanaka, Mila Fischer, Matthias Bremer, Andreas Taugerbeck
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Patent number: 9453163Abstract: To provide a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature of a nematic phase, low minimum temperature of the nematic phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, large specific resistance, high stability to ultraviolet light and heat, or to provide a liquid crystal composition having suitable balance regarding at least two of the characteristics; and to provide an AM device having short response time, large voltage holding ratio, large contrast ratio, long service life and so forth. The liquid crystal composition has a nematic phase and contains a specific compound having large dielectric anisotropy as a first component, may contain a specific compound having high maximum temperature or small viscosity as a second component and a specific compound having high maximum temperature or large dielectric anisotropy as a third component; and a liquid crystal display device including the liquid crystal composition.Type: GrantFiled: February 22, 2013Date of Patent: September 27, 2016Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Yoshimasa Furusato, Taketo Maeda, Takashi Hiraoka
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Patent number: 9441161Abstract: To provide a liquid crystal compound satisfying at least one of physical properties such as high stability to light, a high clearing point, low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, a suitable elastic constant, excellent compatibility with other liquid crystal compounds and a large dielectric constant in a minor axis direction. The compound is represented by formula (1). For example, R1 is alkyl having 1 to 15 carbons; rings A1 to A4 are 1,4-cyclohexylene or 1,4-phenylene; W1 is a group represented by formula (1a) or (1b); W2 is a group represented by formula (1c) or (1d); Y1 to Y5 and L1 to L5 are fluorine; Z1 to Z5 are —(CH2)2— or —OCH2—; X1 is fluorine, —CF3 or —OCF3; and a to d are 0 or 1, and a sum of a to d is 3 or less.Type: GrantFiled: July 30, 2015Date of Patent: September 13, 2016Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Hiroyuki Tanaka, Yasuyuki Sasada
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Patent number: 9434883Abstract: A liquid crystal composition having at least one or a suitable balance regarding at least two of characteristic such as high maximum temperature of a nematic phase, low minimum temperature thereof, small viscosity, suitable optical anisotropy, large dielectric anisotropy, large specific resistance, high stability to ultraviolet-light or heat, or large elastic constant; an AM-device having short response time, a large voltage holding ratio, low threshold voltage, a large contrast ratio, a negatively large DC brightness relaxation time constant and long-service-life. The liquid crystal composition contains a compound contributing to high stability to heat or ultraviolet-light as an additive component and a specific compound having positively large dielectric anisotropy, and a liquid crystal display device includes the composition.Type: GrantFiled: July 23, 2015Date of Patent: September 6, 2016Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Yoshimasa Furusato, Masayuki Saito
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Patent number: 9416318Abstract: A liquid crystal composition containing an optically active compound represented by the following formula (1) and a liquid crystal compound shows a cholesteric liquid crystal phase having an excellent alignment state: K1 and K2 represent benzene, cyclohexane or cyclohexene; X1 to X12 represent hydrogen, halogen, alkyl, alkynyl, alkenyl or alkyloxy.Type: GrantFiled: February 6, 2015Date of Patent: August 16, 2016Assignee: FUJIFILM CorporationInventors: Ryo Hamasaki, Masaru Yoshikawa, Mitsuyoshi Ichihashi
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Patent number: 9411207Abstract: There is provided a nematic liquid crystal composition that exhibits a negative dielectric anisotropy (??), the liquid crystal composition being useful as a liquid crystal display material, and a liquid crystal display element using the same. The liquid crystal composition has a large absolute value of the dielectric anisotropy thereof and a low viscosity. The liquid crystal composition can provide a liquid crystal display element which has a high contrast, high-speed responsiveness, and good display quality in which image sticking and display defects are not generated. The liquid crystal display element using the liquid crystal composition is a useful display element which realizes both high-speed response and suppression of display defects. In particular, the liquid crystal display element is useful as a liquid crystal display element for active-matrix driving, and can be applied to, for example, a VA-type or PSVA-type liquid crystal display element.Type: GrantFiled: November 6, 2013Date of Patent: August 9, 2016Assignee: DIC CORPORATIONInventors: Takeshi Kuriyama, Yoshinori Iwashita
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Patent number: 9404040Abstract: To provide a liquid crystal compound satisfying at least one of high stability to heat, light and so forth, a high clearing point, a low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, a suitable elastic constant and excellent compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound is represented by formula (1): wherein, for example, R is alkyl having 1 to 10 carbons or alkoxy having 1 to 9 carbons; ring A1, ring A2 and ring A3 is 1,4-cyclohexylene, 1,4-phenylene or 2,3-difluoro-1,4-phenylene; at least one of L1 and L2 is fluorine and the remainder is hydrogen; Z1, Z2 and Z3 are a single bond, —(CH2)2—, —CH2O— or —COO—; x and y are an integer from 0 to 10; and l, m and n are 0 or 1.Type: GrantFiled: February 18, 2015Date of Patent: August 2, 2016Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventor: Masahide Kobayashi
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Patent number: 9394482Abstract: An object is to provide a liquid crystal 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 using the composition, and a liquid crystal display device having the composite. A solution is a polymerizable compound represented by formula (1). In formula (1), P1 and P2 are identically group (P-1), (P-2) or (P-3), and in formula (P-1), M is hydrogen, fluorine, —CH3 or —CF3; S1 and S2 are a single bond, alkylene having 1 to 6 carbons or the like; a1, a2 and b1 are 0, 1, 2, 3 or 4, and a sum of a1 and a2 is 4; ring A1 is naphthalene, anthracene or phenanthrene; and ring A2 is cyclohexyl, phenyl, naphthyl, anthracenyl or phenanthrenyl; and Z1 is a single bond, —CO—, —COO— or the like.Type: GrantFiled: October 1, 2014Date of Patent: July 19, 2016Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Yasuyuki Gotoh, Takahiro Kubo
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Patent number: 9376621Abstract: A liquid crystal composition that includes a polymerizable compound having a high solubility, a composition obtained by polymerizing the polymerizable compound in the liquid crystal composition, and an AM device including any of the compositions are described. The liquid crystal composition has negative dielectric anisotropy, and includes at least one compound selected from the group of compounds represented by formula (1): wherein P1 and P2 are polymerizable groups, and, for example, ring A and ring B are independently an adamantane ring or a noradamantane ring, Z1, Z2 and Z3 are a single bond, and a, b and c are 1.Type: GrantFiled: November 10, 2014Date of Patent: June 28, 2016Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Yukihiro Fujita, Yoshimasa Furusato
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Patent number: 9376618Abstract: The present invention provides an FFS mode liquid crystal display device that uses a liquid crystal composition which has a negative dielectric anisotropy and can achieve good display properties by being used for FFS mode liquid crystal display devices without degrading the image sticking property of display devices and various properties of liquid crystal display devices, such as dielectric anisotropy, viscosity, nematic phase upper limit temperature, low-temperature nematic phase stability, and ?1. The liquid crystal composition contains at least one compound selected from the group of compounds represented by general formula (I) below and at least one compound selected from the group of compounds represented by general formula (II) below.Type: GrantFiled: October 2, 2013Date of Patent: June 28, 2016Assignee: DIC CORPORATIONInventors: Shinji Ogawa, Yoshinori Iwashita, Makoto Negishi
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Patent number: 9376622Abstract: The invention relates to compounds of the formula I and to a liquid-crystalline medium which comprises one or more compounds of the formula I, in which R1, X1, X, Y1 and Y2 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: GrantFiled: December 9, 2013Date of Patent: June 28, 2016Assignee: Merck Patent GmbHInventors: Harald Hirschmann, Andreas Pohle, Markus Czanta, Christian Schoenefeld, Elvira Montenegro, Volker Reiffenrath
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Patent number: 9365772Abstract: A liquid crystal composition is described, which has a nematic phase and contains a compound having a high maximum temperature and a large dielectric anisotropy as a first component, and a specific compound having a large dielectric anisotropy as a second component, and may also contain a specific compound having a large dielectric anisotropy as a third component, and a compound having a small viscosity as a fourth component. An AM liquid crystal display device including the composition is also described.Type: GrantFiled: September 11, 2012Date of Patent: June 14, 2016Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORTIONInventors: Norikatsu Hattori, Yasuhiro Haseba, Shin-Ichi Yamamoto
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Patent number: 9359553Abstract: A liquid crystal composition and an AM LCD device containing the liquid crystal composition are described. The liquid crystal composition has a negative dielectric anisotropy, includes a specific compound having a high maximum temperature and a large optical anisotropy as a first component, and may also include at least one of a specific compound having a large negative dielectric anisotropy as a second component, a specific compound having a high maximum temperature or a small viscosity as a third component, and a specific compound having a polymerizable group as an additive component.Type: GrantFiled: November 25, 2014Date of Patent: June 7, 2016Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Masayuki Saito, Yoshimasa Furusato
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Patent number: 9354481Abstract: To provide a liquid crystal element with a high contrast ratio capable of achieving both optical control that utilizes a memory property and optical control capable of supporting moving image displays. The two substrates are disposed with an angle formed by the respective orientation processing directions from 0° to less than 40°. The liquid crystal layer includes chiral material capable of generating a second orientation state that includes a twist different from that of the first orientation state in the liquid crystal molecules of the layer. The liquid crystal layer transitions from the second orientation state to the first orientation state and vice versa by the application of an electric field, and returns to the second orientation state when an electric field is applied in the second orientation state, thereby generating an orientation change in accordance with the size of the electric field, and the electric field is subsequently released.Type: GrantFiled: August 20, 2014Date of Patent: May 31, 2016Assignee: STANLEY ELECTRIC CO., LTD.Inventors: Yasuo Toko, Keisuke Kato
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Patent number: 9354451Abstract: The present invention relates to an image display device using a diffractive lens. An image display device according to an exemplary embodiment of the present invention includes a display panel displaying an image, and a diffractive lens for the image of the display panel to be recognized as a two-dimensional (2D) image or a three-dimensional (3D) image, wherein the diffractive lens modifies a path of light by using an optical principle of a Fresnel zone plate.Type: GrantFiled: June 2, 2015Date of Patent: May 31, 2016Assignee: Samsung Display Co., LtdInventors: Seung Jun Jeong, Kyung-Ho Jung, Seung-Hoon Lee, Hee-Seop Kim, Hae-Young Yun, Hwi Kim, Il-Joo Kim, Kyung-Bae Kim, Jung-Hwan Yi
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Patent number: 9348191Abstract: A liquid crystal element achieving both optical control utilizing a memory property and optical control capable of supporting moving image displays is disclosed. The first substrate and the second substrate of the element are set in an orientation process direction that ensures generation of a first orientation state, and a chiral material that generates a second orientation state is included in the liquid crystal layer. The layer transitions from the second orientation state to the first orientation state when an electric field of a layer thickness direction is applied. The layer transitions from the first orientation state to the second orientation state when an electric field of a direction perpendicular to the layer thickness direction is applied. And the layer returns to the second orientation state when an orientation change is generated according to the strength of the electric field when an electric field of the perpendicular direction is applied.Type: GrantFiled: December 2, 2013Date of Patent: May 24, 2016Assignee: STANLEY ELECTRIC CO., LTD.Inventor: Yasuo Toko
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Patent number: 9347001Abstract: There is provided a liquid crystal composition containing a compound represented by Formula (i) and a compound represented by General Formula (ii) (where Rii1 and Rii2 each independently represent an alkyl group having 1 to 5 carbon atoms, an alkoxyl group having 1 to 5 carbon atoms, or an alkenyl group having 4 or 5 carbon atoms; and Xii1 and Xii2 each independently represent a hydrogen atom or a fluorine atom). There is also provided a liquid crystal display device in which such a liquid crystal composition is used.Type: GrantFiled: March 6, 2013Date of Patent: May 24, 2016Assignee: DIC CORPORATION (TOKYO)Inventors: Joji Kawamura, Makoto Negishi, Yoshinori Iwashita
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Patent number: 9347000Abstract: The present invention relates to polymerisable compounds, 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 having a polymer-stabilised blue phase, and in LC media for LC displays of the PS or PSA (“polymer sustained” or “polymer sustained alignment”) type, and to LC media and LC displays comprising these compounds.Type: GrantFiled: August 26, 2014Date of Patent: May 24, 2016Assignee: Merck Patent GmbHInventors: Axel Jansen, Andreas Taugerbeck, Helmut Haensel, Achim Goetz
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Patent number: 9340730Abstract: The present invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy (??), which is distinguished by the fact that it has a value for the ratio ?1/?n2 in the range 6-45 with a clearing point of >60° C. and a ?? of ??2.3. Media of this type are particularly suitable for electro-optical displays having active-matrix addressing based on the ECB, PA LCD, FFS or IPS effect.Type: GrantFiled: June 28, 2011Date of Patent: May 17, 2016Assignee: Merck Patent GmbHInventors: Melanie Klasen-Memmer, Sabine Schoen
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Patent number: 9315729Abstract: The present invention relates to polymerizable compounds, liquid-crystalline media comprising the compounds, in particular liquid-crystal (LC) media and LC displays having a polymer-stabilised blue phase, and LC media for LC displays of the PS or PSA type (“polymer sustained” or “polymer sustained alignment”) type.Type: GrantFiled: May 15, 2012Date of Patent: April 19, 2016Assignee: Merck Patent GmbHInventors: Michael Wittek, Norihiko Tanaka, Andreas Taugerbeck
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Patent number: 9318719Abstract: A method for producing an organic photoelectric conversion device, including a step of forming an anode, a step of forming an active layer on the above-described anode, a step of forming an oxide layer comprising a zinc oxide doped with at least one metal selected from the group consisting of gallium, aluminum, indium and boron on the above-described active layer, and a step of forming a cathode on the above-described oxide layer by a vacuum film formation method.Type: GrantFiled: May 24, 2013Date of Patent: April 19, 2016Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Yasunori Uetani
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Patent number: 9271963Abstract: The invention relates to compounds for selectively inhibiting human corticosteroid synthases CYP1 1 B1 and CYP1 1 B2, and to the production and use thereof for treating hypercortisolism, diabetes mellitus, hyperaldosteronism, cardiac insufficiency, myocardial fibrosis, depression, age-related cognitive decline and metabolic syndrome.Type: GrantFiled: March 2, 2006Date of Patent: March 1, 2016Assignee: UNIVERSITAT DES SAARLANDESInventors: Rolf Hartmann, Marieke Voets, Ursula Müller-Vieira
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Patent number: 9234134Abstract: To provide a liquid crystal composition satisfying at least one of characteristics or having a suitable balance regarding at least two of the characteristics such as high maximum temperature of a nematic phase, low minimum temperature thereof, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and heat; an AM device having short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition has negative dielectric anisotropy and contains a compound having high maximum temperature as a first component and a specific compound having large negative dielectric anisotropy as a second component, and may contain a specific compound having small viscosity as a third component, and a specific compound having large negative dielectric anisotropy as a fourth component. A liquid crystal display device includes the composition.Type: GrantFiled: November 28, 2012Date of Patent: January 12, 2016Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Kazuhiko Saigusa, Subaru Kawasaki, Takayoshi Yanai, Norikatsu Hattori
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Patent number: 9228129Abstract: To provide a liquid crystal composition satisfying at least one characteristic such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy, large dielectric anisotropy, large specific resistance, high stability to ultraviolet light, high stability to heat and large elastic constant, or has a suitable balance between at least two of these characteristics. To provide an AM device having short response time, large voltage holding ratio, low threshold voltage, large contrast ratio, long service life and so forth. A liquid crystal composition that has a nematic phase and that comprises a compound having large dielectric anisotropy as a first component and a compound having small viscosity as a second component, and may comprise a compound having high maximum temperature or small viscosity as a third component and a compound having a large dielectric anisotropy as a fourth component, and a liquid crystal display device comprising this composition.Type: GrantFiled: July 31, 2014Date of Patent: January 5, 2016Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Masayuki Saito, Yoshimasa Furusato
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Patent number: 9181483Abstract: To provide a liquid crystal composition satisfying at least one characteristic such as high maximum temperature of a nematic phase, low minimum temperature thereof, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and heat, or has a suitable balance regarding at least two characteristics. To provide an AM device having short response time, a large voltage holding ratio, a large contrast ratio, long service life and so forth. A liquid crystal composition has a nematic phase and contains a specific compound having large dielectric anisotropy as a first component and a specific compound having small viscosity as a second component, and may contain a specific compound having high maximum temperature or small viscosity as a third component and a specific compound having large dielectric anisotropy as a fourth component, and a liquid crystal display device includes the composition.Type: GrantFiled: April 3, 2014Date of Patent: November 10, 2015Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventor: Masayuki Saito
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Patent number: 9123972Abstract: The invention relates to an ionic liquid electrolyte comprising at least one ionic liquid of formula C+A? wherein C+ represents a cation and A? represents an anion, and at least one conducting salt, characterized in that it further comprises at least one anionic surfactant. The invention also relates to an electrotechnical system, electrochemical accumulator and battery, and in particular, a lithium accumulator such as a button battery cell.Type: GrantFiled: July 9, 2009Date of Patent: September 1, 2015Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHÉ SCIENTIFIQUEInventors: Nelly Giroud, Eric Chainet, Hélène Rouault
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Patent number: 9091887Abstract: A liquid crystal display device includes a first substrate having a first alignment base layer disposed thereon, a second substrate facing the first substrate and having a second alignment base layer disposed thereon, and ferroelectric liquid crystals vertically aligned between the first substrate and the second substrate. The first alignment controller combines with the first alignment base layer and includes a side chain longer than that of the first alignment base layer. The second alignment controller combines with the second alignment base layer and includes a side chain longer than that of the second alignment base layer. The ferroelectric liquid crystals are pre-tilted by the first alignment controller and the second alignment controller, and as a result, transmittance may be improved. Because the ferroelectric liquid crystals are pre-tilted, a cell gap may be decreased and high-speed driving may be possible at a low voltage.Type: GrantFiled: August 29, 2012Date of Patent: July 28, 2015Assignee: Samsung Display Co., Ltd.Inventor: Yong Woon Lim
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Patent number: 9081238Abstract: According to one embodiment, liquid crystal optical element includes: first board; second board; liquid crystal layer; first electrodes; second electrodes; third electrodes; and fourth electrode. The liquid crystal optical element generates refractive index distribution functioning as a lens. The first electrodes are at positions corresponding to end portions of the lens and on the liquid crystal layer side of the first board. The second electrodes are at positions corresponding to discontinuity points of the lens and on the liquid crystal layer side of the first board. The third electrodes are at positions corresponding to lens surfaces of the lens and on the liquid crystal layer side of the first board. The fourth electrode is provided to the whole surface on the liquid crystal layer side of the second board and includes first cutout portions formed at parts opposing the third electrodes.Type: GrantFiled: November 29, 2012Date of Patent: July 14, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Yoshiharu Momonoi, Ayako Takagi, Shinichi Uehara, Yuko Kizu, Masako Kashiwagi
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Patent number: 9057019Abstract: A liquid crystal composition is described, which has a nematic phase, contains a specific compound having a high maximum temperature or a large dielectric anisotropy as a first component and a specific compound having a large dielectric anisotropy as a second component, and may also contain a specific compound having a high maximum temperature or a small viscosity as a third component and a specific compound having a high maximum temperature or a large dielectric anisotropy as a fourth component. An active-matrix (AM) liquid crystal display device including the liquid crystal composition is also described.Type: GrantFiled: September 13, 2013Date of Patent: June 16, 2015Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Takayoshi Yanai, Yasuyuki Gotoh, Chikahide Kanadani, Hiroki Ookawa
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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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Patent number: 9034203Abstract: The present invention discloses a liquid crystal (LC) molecule having a five-membered ring structure and a mixture thereof. A traditional LC molecule is modified into the LC molecule having the five-membered ring structure. The rotational viscosity of the LC molecule within an LC panel is decreased by properties of the five-membered ring structure, so that the LC molecule having the five-membered ring structure has a fast off-time than that of the traditional LC molecule. The present invention can decrease the rotational viscosity of the LC molecule within the LC panel by modification of the five-membered ring structure of the LC molecule, and thus the problem of cross-talk effect produced from switching a two-dimensional mode to a three-dimensional mode in an LC display can be improved.Type: GrantFiled: July 2, 2012Date of Patent: May 19, 2015Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Chung-Ching Hsieh
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Publication number: 20150129801Abstract: A liquid crystal composition that includes a polymerizable compound having a high solubility, a composition obtained by polymerizing the polymerizable compound in the liquid crystal composition, and an AM device including any of the compositions are described. The liquid crystal composition has negative dielectric anisotropy, and includes at least one compound selected from the group of compounds represented by formula (1): wherein P1 and P2 are polymerizable groups, and, for example, ring A and ring B are independently an adamantane ring or a noradamantane ring, Z1, Z2 and Z3 are a single bond, and a, b and c are 1.Type: ApplicationFiled: November 10, 2014Publication date: May 14, 2015Inventors: YUKIHIRO FUJITA, YOSHIMASA FURUSATO
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Patent number: 9028713Abstract: The present invention provides a mixture for liquid crystal medium and a liquid crystal display using the same. The mixture for liquid crystal medium comprises: at least one anisotropic liquid crystal material and a polymerizable monomer which will polymerize under UV irradiation. The weight percentage of the polymerizable monomer accounts for 0.1% to 1% of the total mixture for liquid crystal medium. In the mixture for liquid crystal medium and a liquid crystal display using the same according to the present invention, by using a polymerizable monomer which will polymerize under UV irradiation and the appropriate content ratio, the polymer bump with small size and good uniformity can be obtained within the mixture for liquid crystal medium after the polymerization, which avoids the bad liquid crystal alignment and the light spot occurred at the dark state of the liquid crystal panel, and then increases the response rapid of the liquid crystal panel to obtain high contrast ratio and stable mass production.Type: GrantFiled: October 16, 2012Date of Patent: May 12, 2015Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventors: Xing Feng, Xinhui Zhong