Patents Examined by Eli D Strah
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Patent number: 9575230Abstract: A color filter comprising a cured layer of a photosensitive resist composition comprising a highly reactive polyacrylate monomer and a process for the preparation thereof are provided. The color filter is especially useful for low temperature applications such as electrophoretic displays, polymer dispersed liquid crystal displays, OLED devices and the like.Type: GrantFiled: April 21, 2011Date of Patent: February 21, 2017Assignee: BASF SEInventors: Gerardus De Keyzer, Liliana Craciun, Michael Kuepfert, Frank Oliver Heinrich Pirrung
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Patent number: 9567478Abstract: Disclosed is a sealant composition, a liquid crystal device and a method for preventing liquid crystal contamination using the sealant composition. The sealant composition consists of 20-30 parts by weight of an ultraviolet polymerizable double bond monomer, 15-20 parts by weight of a heat polymerization monomer, 5-20 parts by weight of a polymerizable oligomer, 0.1-5 parts by weight of a photoinitiator, 10-20 parts by weight of a heat curing agent and 0-20 parts by weight of a particulate additive, wherein said polymerizable oligomer is poly(ethylene glycol) diacrylate or derivatives thereof. Through the reaction between the polymerizable oligomers and the polymer of the ultraviolet polymerizable double bond monomers to generate a reticular high molecular polymer, the anchoring effect of the polymer on the surrounding unreacted heat polymerization monomers is effectively enhanced, thereby reducing the contamination of the crystal liquid by the sealant.Type: GrantFiled: December 21, 2012Date of Patent: February 14, 2017Assignee: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Renwei Guo, Dong Chen
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Patent number: 9507202Abstract: A polarization plate includes a first protective film, a polarizer, and a second protective film in this order, in which the first protective film is a film including a (meth)acryl-based resin, a thickness of the first protective film is in a range of 20 ?m to 30 ?m, a thickness of the second protective film is in a range of 1.5 times to 1.8 times of the thickness of the first protective film, and a humidity dimensional change ratio of the second protective film in the direction orthogonal to an absorption axis of the polarizer is in a range of 0.45% to 0.8%.Type: GrantFiled: November 4, 2014Date of Patent: November 29, 2016Assignee: FUJIFILM CORPORATIONInventors: Ryuji Saneto, Humitake Mitobe, Jun Noguchi
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Patent number: 9508942Abstract: A charge transporting, liquid crystal photoalignment material comprising a charge transporting moiety connected through covalent chemical bonds to a surface derivatizing moiety, and a photoalignment moiety connected through covalent chemical bonds to a surface derivatizing moiety.Type: GrantFiled: February 16, 2009Date of Patent: November 29, 2016Assignee: Lomox LimitedInventor: Gene Carl Koch
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Patent number: 9505960Abstract: Provided are a pressure-sensitive adhesive (PSA) composition including an interpenetrating polymer network structure in a cured state, and including an acrylic resin and a crosslinking agent component that consists of a bifunctional crosslinking agent, a polarizer and a liquid crystal display. Provided are the PSA composition, the polarizer including a cured product of the PSA composition, and the liquid crystal display, which have excellent workability and optical properties, durability and reliability, at high temperature or humidity condition, and significantly increase productivity of optical members such as a polarizer, since the time-dependent change of the pressure-sensitive adhesive strength is rapidly ended after fabrication.Type: GrantFiled: July 16, 2009Date of Patent: November 29, 2016Assignee: LG Chem, Ltd.Inventors: Min Soo Park, In Cheon Han, Ki Seok Jang
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Patent number: 9505961Abstract: The present invention relates to an acrylic pressure sensitive adhesive composition comprising a monomer containing linear carbonate having an antistatic property. The acrylic pressure sensitive adhesive composition exhibits an excellent balance between low-rate peel strength and high-rate peel strength, and is capable of lowering the content of an antistatic agent. It also provides excellent releasable property, and protection of the surface of a polarizer due to proper wettability.Type: GrantFiled: December 9, 2008Date of Patent: November 29, 2016Assignee: LG Chem, Ltd.Inventors: No-Ma Kim, Jae-Gwan Lee, An-Na Lee, Suk-Ky Chang
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Patent number: 9499649Abstract: The present invention relates to a photoreactive compound for the preparation of a photoalignment material comprising thioether units, wherein the photoreactive compound is comprising at least one ene group and at least one photoalignment group, and further to a composition comprising at least one photoreactive compound and at least one polythiol, the use of this composition for the preparation of photoalignment materials, and their use for the alignment of liquid crystals or liquid crystal polymers, in electro-optical and optical elements, systems and devices.Type: GrantFiled: November 6, 2008Date of Patent: November 22, 2016Assignee: ROLIC AGInventors: Izabela Bury, Jean-Francois Eckert, Olivier Muller, Hubert Seiberle, Peggy Studer
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Pressure-sensitive adhesive compositions, polarizers and liquid crystal displays comprising the same
Patent number: 9487681Abstract: The present invention relates to a pressure-sensitive adhesive composition including interpenetrating polymer networks in a cured state, wherein the composition comprise a multi-functional acrylate and a thermal initiator; a polarizer; and a liquid crystal display comprising the same. In the present invention, the pressure-sensitive adhesive composition may be provided, which can outstandingly prevent light leakage phenomenon, with having excellent physical properties such as endurance reliability under high temperature and/or high humidity conditions and workability. Especially, according to the present invention, the pressure-sensitive adhesive composition, polarizer and liquid crystal display are provided, which can outstandingly prevent light leakage phenomenon even in large-sized display devices.Type: GrantFiled: January 5, 2009Date of Patent: November 8, 2016Assignee: LG Chem, Ltd.Inventors: Jeong Min Ha, No-Ma Kim, In Ho Hwang -
Pressure sensitive adhesive compositions, polarizers and liquid crystal displays comprising the same
Patent number: 9487680Abstract: The present invention relates to pressure-sensitive adhesive compositions including interpenetrating polymer networks in a cured state, which comprise a multi-functional acrylate, a photo initiator and a thermal initiator; polarizers; and liquid crystal displays comprising the same. In the present invention, a pressure-sensitive adhesive composition is provided, which can prevent light-leakage phenomenon, and has excellent physical properties such as endurance under high temperature and/or high humidity conditions and workability, such as removability.Type: GrantFiled: April 9, 2009Date of Patent: November 8, 2016Assignee: LG Chem, Ltd.Inventors: Sung Soo Yoon, No Ma Kim, In Ho Hwang, Jeong Min Ha -
Patent number: 9487685Abstract: The present invention relates to an adhesive composition including 100 parts by weight of a first epoxy compound having a glass transition temperature of a homopolymer of not less than 120° C., 30 parts by weight to 100 parts by weight of a second epoxy compound having a glass transition temperature of a homopolymer of not more than 60° C., and 0.5 parts by weight to 20 parts by weight of a cationic photopolymerization initiator, and a polarizing plate using the same.Type: GrantFiled: October 12, 2012Date of Patent: November 8, 2016Assignee: LG Chem, Ltd.Inventors: Eun-Mi Seo, Eun-Soo Huh, Nam-Jeong Lee, Hwa-Sub Shim, Kyun-II Rah, Jun-Wuk Park, Jee-Hyon Min, Yi-Rang Lim
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Patent number: 9482896Abstract: The invention relates to an acrylic adhesive composition, more particularly, to an adhesive composition which: specifies the contents of a (meth)acrylic ester-based monomer and an aromatic group-containing monomer of an acrylic copolymer as a composition having little or no difference of birefringence; has excellent durability; and can reduce light leakage due to flexure by mixing a crosslinkable functional group-containing acrylic copolymer (A) and an acrylic copolymer (B) which does not contain the crosslinkable functional group, in a ratio of 1:9 to 5:5.Type: GrantFiled: January 12, 2009Date of Patent: November 1, 2016Assignee: LG Chem, Ltd.Inventors: Se Ra Kim, Kee Young Kim, Sung Soo Yoon, Min Ki Lee, No Ma Kim, In Cheon Han
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Patent number: 9465408Abstract: A display apparatus includes a first panel, a display panel disposed at one side of the first panel, a film with a hallow region disposed between the first panel and the display panel, and an optical adhesive disposed in the hollow region of the film and between the first panel and the display panel.Type: GrantFiled: July 28, 2013Date of Patent: October 11, 2016Assignee: COMPAL ELECTRONICS, INC.Inventors: Yin-Ta Chen, Kuang-Cheng Fan, Shih-Wei Li
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Patent number: 9409219Abstract: This invention provides a polymer, which is preferably a polyether polymer. The polymer may be used in coating compositions. Containers and other articles comprising the polymer and methods of making such containers and other articles are also provided. The invention further provides compositions including the polymer (e.g., powder coatings), which have utility in a variety of coating end uses, including, for example, valve and pipe coatings.Type: GrantFiled: August 9, 2012Date of Patent: August 9, 2016Assignee: Valspar Sourcing, Inc.Inventors: Jeffrey Niederst, Richard H. Evans, Robert M. O'Brien, Kevin Romagnoli, Mark S. Von Maier
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Patent number: 9405049Abstract: The present invention relates to a polarizing plate and a liquid crystal display device. The polarizing plate, which is lightweight and has a small thickness and excellent physical properties including durability, water resistance, workability, pressure-sensitive adhesion and a light leakage prevention effect; and the liquid crystal display device including the same may be provided.Type: GrantFiled: February 28, 2011Date of Patent: August 2, 2016Assignee: LG CHEM, LTD.Inventors: Sung Soo Yoon, Ki Ok Kwon, No Ma Kim, In Ho Hwang, Sung Hyun Nam, In Kyu Park, Kyun Il Rah, Min Ki Lee
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Pressure-sensitive adhesive compositions, polarizers and liquid crystal displays comprising the same
Patent number: 9399695Abstract: The present invention relates to pressure-sensitive adhesive compositions which contain (A) hydroxyl group and alkylene oxide group containing acrylic copolymer and (B) a multifunctional isocyanate-based hardener, and form interpenetrating network structures when hardened, and polarizers and liquid crystal displays comprising the same. The pressure-sensitive adhesive compositions of the present invention exhibit superior durability, reliability, and workability and effectively prevent light leakage under high temperature and/or high humidity conditions. Particularly, the present invention provides pressure-sensitive adhesive compositions capable of significantly suppressing light leakage even in large size display devices, and polarizers and liquid crystal displays comprising the same.Type: GrantFiled: January 6, 2009Date of Patent: July 26, 2016Assignee: LG Chem, Ltd.Inventors: No Ma Kim, In Ho Hwang, Jeong Min Ha, Sung Soo Yoon, Sung Su Kim, Sang Jo Bae -
Patent number: 9376619Abstract: A surface polymer-assisted vertically aligned (SPA-VA) liquid crystal (LC) cell has a surface alignment layer of surface localized polymer nano spikes capable of controlling the pretilt angle of liquid crystal molecules and ensuring fast switching characteristics. The deposition of the polymer nanospikes as a part of the alignment layer is achieved by polymerizing a small amount of a reactive monomer in vertically aligned liquid crystal with or without an applied voltage. Due to the alignment of liquid crystal molecules by the surface alignment layers, the polymerized polymer acts as an internal surface to modify and control the field-induced reorientation of the liquid crystal molecules. The SPA-VA LC cell realizes a stable alignment and the considerable advantage of the formation of polymer spikes via UV irradiation on both substrates of the cell. Furthermore, the switch-off of a SPA-VA is fast due to the enhanced surface anchoring strength by the surface-localized polymer nano spikes.Type: GrantFiled: February 15, 2011Date of Patent: June 28, 2016Assignee: KENT STATE UNIVERSITYInventors: Liang-Chy Chien, Volodymyr Borshch, Jeoung-Yeon Hwang
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Patent number: 9359528Abstract: The present invention relates to a pressure sensitive adhesive composition. The present invention may effectively provide a pressure sensitive adhesive where peel forces for both sides are different and an modulus differs along the thickness direction. By applying the pressure sensitive adhesive as above, the present invention may provide, for example, an optical element, such as a polarizing plate, which can effectively inhibit light leakage and shows excellent durability, while being formed to have a thin thickness as well.Type: GrantFiled: February 28, 2011Date of Patent: June 7, 2016Assignee: LG CHEM, LTD.Inventors: Sung Soo Yoon, No Ma Kim, In Ho Hwang, In Kyu Park, Min Ki Lee
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Patent number: 9354371Abstract: Azo compounds represented by formula (1) or (2) (In the formulas, A represents a phenyl group or naphthyl group that has at least 1 substituent. R1-R4 represent a hydrogen atom, lower alkyl group or lower alkoxy group, with at least one of R1-R4 being a lower alkoxy group that has a sulfone group. X represents an optionally substituted amino group, optionally substituted benzoylamino group, optionally substituted phenylamino group, optionally substituted phenyl azo group or optionally substituted naphthotriazole group) and salts thereof.Type: GrantFiled: May 19, 2009Date of Patent: May 31, 2016Assignees: Nippon Kayaku Kabushiki Kaisha, Polatechno Co., Ltd.Inventors: Takuto Nishiguchi, Hiroaki Ohno, Takahiro Higeta, Yuichi Sadamitsu
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Patent number: 9331284Abstract: It is an object of the invention to provide a polymer compound that, when used in a light-emitting device, results in excellent luminance life for the obtained light-emitting device. The invention provides a polymer compound comprising a constitutional unit represented by formula (1). [In formula (1), R1A, R1B, R2A, R2B represent an unsubstituted alkyl group, R3 and R4 represented an unsubstituted or substituted alkyl group, an unsubstituted or substituted alkoxy group, an unsubstituted or substituted aryl group, an unsubstituted or substituted aryloxy group, an unsubstituted or substituted heterocyclic group, an unsubstituted or substituted silyl group, a halogen atom, an alkoxycarbonyl group, a carboxyl or a cyano group, and R5 and R6 represent an unsubstituted or substituted alkyl group, an unsubstituted or substituted alkoxy group or an unsubstituted or substituted aryl group. The letters a, b, c and d each represent an integer of 0 to 3.Type: GrantFiled: January 28, 2011Date of Patent: May 3, 2016Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Daisuke Fukushima, Brian Tierney, Natasha Conway, Mary McKiernan
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Patent number: 9145493Abstract: A film containing a cellulose acylate, a hindered amine compound at least 0.001% by mass relative to the cellulose acylate, and a plasticizer, satisfying: (i) the concentration C1 of the hindered amine compound 3 ?m from the first film surface is higher than the concentration C2 3 ?m from the second film surface; (ii) the concentration A of the plasticizer 3 ?m from the first film surface is lower than the concentration B 10 ?m from the first film surface; (iiia) the 15 acyl substitution degree a of the cellulose acylate 3 ?m from the first film surface is lower than the acyl substitution degree b 10 ?m from the first film surface; and (iiib) the 20 weight-average molecular weight Ma of the cellulose acylate 3 ?m from the first film surface is higher than the weight-average molecular weight Mb 10 ?m from the first film surface.Type: GrantFiled: October 30, 2012Date of Patent: September 29, 2015Assignee: FUJIFILM CORPORATIONInventors: Kazuo Kamohara, Katsumi Sasata, Nobutaka Fukagawa, Masaki Noro