Ester (e.g., Polycarbonate, Polyacrylate, Etc.) Patents (Class 428/1.33)
  • Patent number: 11256007
    Abstract: An optical brightness enhancement structure and a manufacturing method thereof and an electronic device are provided. The method for manufacturing an optical brightness enhancement structure includes: providing a light-transmissive carrier, and forming a buffer layer on a first surface of the light-transmissive carrier; forming a plurality of microstructures for converging light on a surface of the buffer layer away from the light-transmissive carrier; and surface energy of each of the microstructures is greater than surface energy of the buffer layer.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: February 22, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Xinwei Gao
  • Patent number: 11230669
    Abstract: The present invention provides a liquid crystal film having an optically anisotropic layer having excellent alignment and excellent adhesiveness. The present invention further provides an optical laminate, a circularly polarizing plate, and an organic EL display device, each of which uses the optically anisotropic layer. The liquid crystal film of an embodiment of the present invention is a liquid crystal film having at least an optically anisotropic layer formed with a liquid crystal composition including a polymerizable liquid crystal compound and a fluoroaliphatic group-containing copolymer, and a support, in which the fluoroaliphatic group-containing copolymer has a repeating unit derived from a fluoroaliphatic group-containing monomer represented by General Formula (1) and a repeating unit having a polymerizable group polymerizable with the polymerizable liquid crystal compound.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: January 25, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Nobuyuki Akutagawa, Keisuke Yoshimasa, Akio Tamura, Reiko Inushima, Tetsu Kitamura
  • Patent number: 10894903
    Abstract: A barrier adhesive composition comprises polyisobutylene resin, hydrophobic nanoparticles and sorbent nanoparticles.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: January 19, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jacob P. Johnson, Jimmie R. Baran, Jr., John P. Baetzold, Serena L. Schleusner
  • Patent number: 10866661
    Abstract: A film touch sensor includes a separation layer; a protective layer disposed on the separation layer, and an electrode pattern layer which is disposed on the protective layer and includes an insulation layer that is a cured layer of a binder resin including (a-1) a resin in which at least a part of a phenolic hydroxyl group or a carboxyl group is protected with an acid decomposable group, (a-2) an acrylic resin containing an epoxy group, and (a-3) an acrylic resin containing an oxetane group, such that it is possible to suppress thermal damage such as wrinkles, or cracks of the insulation layer, which may occur in high-temperature deposition and annealing processes, and significantly reduce an occurrence rate of cracks during peeling-off the same from a carrier substrate.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: December 15, 2020
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Sang Kook Kim, Seong Hwan Park, Min Ju Lim, Sung Hoon Cho
  • Patent number: 10457792
    Abstract: A polarizing plate protective film which prevents deterioration of polarization performance in a high temperature, high humidity environment, and a polarizing plate and display device using the film including a compound represented by the following General Formula (I). (X-LnZ??General Formula (I) X represents a formyl group, a boronic acid group, or a group represented by the following General Formula (I-B) or a group represented by the following General Formula (I-C), where L represents a single bond or divalent linking group, and n represents an integer equal to or greater than 2. When n is 2, Z represents a single bond or a divalent group, and when n?3, Z represents an n-valent group. RA and RB represent an alkyl group, a cycloalkyl group, an aryl group, or an acyl group. RA and RB may be bonded to each other to form a ring. * represents a bond to be bonded to L.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: October 29, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Nobutaka Fukagawa, Naoki Sano, Mayumi Nojiri, Aiko Yoshida, Naoya Shimoju
  • Patent number: 10459265
    Abstract: According to one embodiment, a display device includes a first substrate including a first insulating substrate, a second substrate including a second insulating substrate and opposing the first substrate, and an adhesive layer which attaches the first substrate and the second substrate together. The adhesive layer includes a first portion extending in a first direction. The first portion includes a first end portion and a second end portion, each extending in the first direction. The second substrate includes a third end portion located between the first end portion and the second end portion and extending in the first direction. The first substrate and the second substrate are bent in a position overlapping the first portion.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: October 29, 2019
    Assignee: Japan Display Inc.
    Inventor: Yasushi Kawata
  • Patent number: 10377702
    Abstract: A compound having the formula (I): is disclosed. A method of preparing the compound of formula (I) is also disclosed.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: August 13, 2019
    Assignee: SHAANXI UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Chengyuan Liang, Yuzhi Liu, Xingke Ju, Yonghong Tang, Gennian Mao, Qianqian Zhao, Bin Tian, Jian Zha, Chunyang Shi, Yongbo Wang, Huayin Pu, Yanghan Liu
  • Patent number: 10030159
    Abstract: An active-energy-ray-curable composition, a cured material of the active-energy-ray-curable composition satisfying a critical load of 5.0 g or more but 25.0 g or less, the critical load being obtained by a continuous loading test method using a variable normal load friction and wear measurement device, the cured material having an average thickness of 10 ?m and being formed by coating the active-energy-ray-curable composition on a substrate and by irradiating and curing the active-energy-ray-curable composition with active energy rays having illuminance of 1.5 W/cm2 and an amount of irradiation of 200 mJ/cm2.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: July 24, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Mio Kumai, Mihoko Matsumoto, Masayuki Koyano, Kaori Miyahara, Azumi Miyaake, Yuuki Mizutani, Ayano Momose, Maiko Koeda, Yuri Haga, Hiroki Nakane, Takayuki Shimizu, Hiroki Kobayashi
  • Patent number: 9857927
    Abstract: A transparent resin laminate includes: a high-hardness hard coating layer having a pencil hardness of 6H to 8H; a transparent (meth)acrylic resin layer; and an impact resistant hard coating layer including a urethane bond-containing acrylic resin.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: January 2, 2018
    Assignee: LG HAUSYS, LTD.
    Inventors: Deok Ryul Hwang, Ku Il Park, Seong Hoon Yue, Jong Hun Lee, Min Hee Lee, Chang Hak Shin, Hwan Seok Park, Yea Ri Song
  • Patent number: 9772086
    Abstract: Illuminating devices are disclosed having plastic light-transmitting article(s) formed from a thermoplastic composition including a polycarbonate having repeating structural carbonate units according to the formula: in which at least 60 percent of the total number of R1 groups contain aromatic moieties and the balance thereof are aliphatic, alicyclic, or aromatic. The composition also includes an epoxy additive having at least two epoxy groups per molecule and a phenolic diphosphite derived from pentaerythritol. The thermoplastic composition exhibits a dE (2000 hrs.) value of less than 1.5 after 2000 hours of heat aging at 130° C., measured according ISO 11664-4:2008(E)/CIE S 014-4/E:2007 using CIE illuminant D65 and a 2.5 mm thick molded plaque of the thermoplastic composition.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: September 26, 2017
    Assignee: SABIC INNOVATIVE PLASTICS IP B.V.
    Inventors: Joshua Arie van den Bogerd, Johannes de Brouwer
  • Patent number: 9606271
    Abstract: The present invention provides an antiglare film having an excellent antiglare property and being capable of suitably preventing an occurrence of scintillation and a decrease in contrast. The antiglare film includes a light-transmitting substrate and a diffusion layer. The diffusion layer has a surface roughness and is formed on at least one side of the light-transmitting substrate, wherein the diffusion layer contains organic fine particles (A), organic fine particles (B), and a cured product of a binder component, and satisfies the expressions: (1) ?A<?B; (2) RA>RB; and (3) CA/RA3<CB/RB3, where CA and CB represent a content of the organic fine particles (A) or the organic fine particles (B) in the diffusion layer, respectively, RA and RB represent an average particle size thereof, respectively, and ?A and ?B represent a refractive index thereof relative to the cured product of the binder component, respectively.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: March 28, 2017
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Gen Furui, Takashi Kodama, Makoto Honda
  • Patent number: 9557841
    Abstract: An electronic device has a touch screen comprising a transparent substrate having a first supporting side and an opposing second supporting side. The first supporting side of the touch screen has at least one electrically-conductive pattern, and a dry outermost polymeric coating disposed over at least part but not all of the electrically-conductive metal pattern. The dry polymeric coating has a dry thickness of less than 5 ?m, an integrated transmittance of at least 80%, and a non-crosslinked thermoplastic polymer having a glass transition temperature (Tg) that is equal to or greater than 65° C.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: January 31, 2017
    Assignee: EASTMAN KODAK COMPANY
    Inventors: Marcus Stephen Bermel, Lisa Baxter Todd, Linda Mae Franklin, Thomas Henry Mourey, Christine Joanne Landry-Coltrain
  • Patent number: 9465150
    Abstract: A protective film for polarizing plate contains a resin, an ultraviolet absorbing agent A having an absorption maximum in a wavelength range of from 350 to 400 nm and an ultraviolet absorbing agent B having an absorption maximum in a wavelength range of from 270 to 330 nm, and a content of the ultraviolet absorbing agent A is from 0.1 to 5% by weight relative to the resin, a content of the ultraviolet absorbing agent B is from 0.1 to 5% by weight relative to the resin, and the protective film fulfills the requirements (a) to (d) as defined herein.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: October 11, 2016
    Assignee: FUJIFILM CORPORATION
    Inventors: Nobutaka Fukagawa, Naoyoshi Yamada, Aiko Yoshida, Yukie Watanabe
  • Patent number: 9417360
    Abstract: Disclosed is a stretched optical compensation film which is a phase difference film containing a cellulose-based resin and having excellent optical properties. The stretched optical compensation film of the present invention contains 0.5 to 30 parts by mass of a ?-diketone compound represented by Formula (I) with respect to 100 parts by mass of the cellulose-based resin. Positions R1 and R2 each independently represent an alkyl group having 1 to 20 carbon atoms which is optionally substituted, an arylalkyl group having 7 to 20 carbon atoms which is optionally substituted or an aryl group having 6 to 20 carbon atoms which is optionally substituted. Position R3 represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: August 16, 2016
    Assignee: ADEKA CORPORATION
    Inventors: Masashi Harada, Yuki Tanaka, Takashi Murakami, Yuki Endo, Masaki Segawa
  • Patent number: 9391098
    Abstract: An object of the present invention is to improve yield when manufacturing a display device. A method of manufacturing a display device for displaying an image using a display element includes exposing a first surface of a glass substrate o an aqueous solution containing hydrogen fluoride, forming an organic resin film having a polar group above the first surface of the glass substrate, forming a layer including a display element for displaying an image above the organic resin film, and bonding an opposing substrate so as to cover the display element.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: July 12, 2016
    Assignee: Japan Display Inc.
    Inventors: Tomohiko Naganuma, Yasukazu Kimura, Takuma Nishinohara
  • Patent number: 9256099
    Abstract: Provided is a polarizer durable against high-temperature and high-humidity conditions, small in changes in the single plate transmittance, and a liquid crystal display device. A polarizer including a polyvinyl alcohol-based resin, a dichroic colorant, and a compound, etc. represented by the formula (1) below, the content of the compound represented by the formula (1) being 0.01 to 30 parts by mass relative to 100 parts by mass of the polyvinyl alcohol-based resin. In the formula (1) , each of R1 and R3 independently represents a hydrogen atom, C1-20 straight-chain alkyl group, C3-20 branched alkyl group, C3-20 cycloalkyl group, C2-20 alkenyl group or C6-20 aromatic group, and R5 represents a substituent.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: February 9, 2016
    Assignee: FUJIFILM CORPORATION
    Inventors: Mayumi Nojiri, Takahiro Ohno, Nobutaka Fukagawa, Yu Naito, Hiroyuki Ishikawa, Naoya Shimoju
  • Patent number: 9201171
    Abstract: The present invention provides an optical layered body having excellent hardness, abrasion resistance, and flexibility. The present invention provides an optical layered body having a hard coat layer on one side of a triacetylcellulose substrate, wherein a Martens hardness (N1) of a surface of the hard coat layer, a Martens hardness (N2) of the center of the cross-section of the hard coat layer, and a Martens hardness (N3) of the center of the cross-section of the triacetylcellulose substrate have a relationship of N2>N1>N3 as determined by nanoindentation, and the hard coat layer has a pencil hardness of 4H or more as measured by a test in accordance with a pencil hardness test defined in JIS K5600-5-4 (1999) at a load of 4.9 N.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: December 1, 2015
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yuya Inomata, Tomoyuki Horio, Takeshi Nishizono, Kana Yamamoto
  • Patent number: 9195090
    Abstract: A polymer film that has: a ratio R (VT/VM) of a sound velocity in a transverse direction VT to a sound velocity in a machine direction VM of from 1.05 to 1.50; and an in-plane retardation Re(?) and a thickness-direction retardation Rth(?) satisfying formula (I): (I) 0?Re(630)?10, and |Rth(630)|?25, wherein Re(?) represents an in-plane retardation at a wavelength of ? (nm); and Rth(?) represents a thickness-direction retardation at a wavelength of ? (nm).
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: November 24, 2015
    Assignee: FUJIFILM Corporation
    Inventor: Tadashi Omatsu
  • Patent number: 9164199
    Abstract: The present invention provides an optical layered body having excellent hardness, abrasion resistance, and flexibility. The present invention provides an optical layered body having a hard coat layer on one side of a triacetylcellulose substrate, wherein a Martens hardness (N1) of a surface of the hard coat layer, a Martens hardness (N2) of the center of the cross-section of the hard coat layer, and a Martens hardness (N3) of the center of the cross-section of the triacetylcellulose substrate have a relationship of N2>N1>N3 as determined by nanoindentation, and the hard coat layer has a pencil hardness of 4H or more as measured by a test in accordance with a pencil hardness test defined in JIS K5600-5-4 (1999) at a load of 4.9 N.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: October 20, 2015
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yuya Inomata, Tomoyuki Horio, Takeshi Nishizono, Kana Yamamoto
  • Patent number: 9151870
    Abstract: The purpose of the present invention is to provide an optical film having a large phase difference value, small moisture-induced fluctuation in the phase difference value, small photoelastic coefficient and excellent bondability with a polarizer. The optical film includes a cellulose ester (A) which satisfy formulae (1) and (2) below and a vinyl-based polymer (B). A content ratio of the cellulose ester (A) and the vinyl-based polymer (B) is from 95:5 to 50:50 by mass, the vinyl-based polymer (B) is composed of a non-aromatic vinyl-based monomer having a solubility parameter of 17.5 (MPa1/2) or larger and smaller than 20.0 (MPa1/2) and a weight average molecular weight of the vinyl-based polymer (B) is from 500 to 10,000: where 1.0?X+?Yi<2.0??formula (1) 4.0?2×X+?(ni×Yi)<6.0.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: October 6, 2015
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hiroyoshi Kiuchi, Takatugu Suzuki, Kiyoshi Fukusaka
  • Patent number: 9090824
    Abstract: A polarizing plate includes two protective films and a polarizer provided between the two protective films, and the polarizer has a thickness of 3 ?m to 18 ?m, at least one of the protective films has a thickness of 3 ?m to 40 ?m and contains at least one resin and a compound in an amount of 1 part by mass to 20 parts by mass based on 100 parts by mass of the resin, the compound having at least one hydrogen-donating group capable of forming a hydrogen bond and a ratio of molecular weight to number of aromatic rings of 300 or less, and the polarizing plate has a thickness of 15 ?m to 70 ?m.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: July 28, 2015
    Assignee: FUJIFILM CORPORATION
    Inventors: Nobutaka Fukagawa, Yu Naito, Akio Tamura, Yutaka Nozoe, Hiroshi Inada
  • Patent number: 9081133
    Abstract: A polarizing plate protective film forming a polarizing plate by sandwiching a polarizer with two of the polarizing plate protective films, wherein at least one of the two polarizing plate protective films exhibits Ro defined by Expression (I) of 0 to 10 mm and Rt defined by Expression (II) of ?20 to 20 mm, and also at least one of the polarizing plate protective films has a hard coat layer: Expression (I): Ro=(nx?ny)×d; Expression (II): Rt={(nx+ny)/2?nz}×d; wherein nx is a refractive index in a delayed phase axis direction in a plane of the polarizing plate protective film, ny is a refractive index in a direction at right angles to the delayed phase axis in the plane, nz is a refractive index in a film thickness direction, and d is a film thickness (nm).
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: July 14, 2015
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takashi Takebe, Kunio Shimizu, Shigeki Oka
  • Patent number: 9079395
    Abstract: An ink-jet printer for printing on cards includes a printing station having an ink-jet printhead. A reservoir containing an ink is coupled to the ink-jet printhead. The ink includes: a medium consisting of a low-boiling organic solvent, an auxiliary solvent consisting of a high-boiling organic solvent, and a coloring component soluble in said medium. A driving system is adapted to drive the printhead between a first operative condition wherein the ink ejected by the printhead impinges on the card, and at least a second operative condition, wherein the ink ejected by the printhead does not impinge on the card. A control unit is active on the printhead for commanding ejections thereof, and on the driving system for controlling movement of the printhead. The control unit is configured for commanding an ink ejection in the second operative condition before ink ejection in the first operative condition.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: July 14, 2015
    Assignee: SICPA HOLDING SA
    Inventors: Paolo Cappello, Mauro Mondino
  • Patent number: 9051425
    Abstract: A poly(amide-imide) block copolymer that includes a first segment including a repeating unit represented by the following Chemical Formula 1 and a second segment including a repeating unit represented by the following Chemical Formula 2: wherein, R1 to R8, and n1 to n5, in Chemical Formula 1 and 2, are defined herein.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: June 9, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chung Kun Cho, Androsov Dmitry, Kalinina Fedosya, Yoon Seok Ko, Kovalev Mikhail
  • Publication number: 20150147490
    Abstract: Provided are a liquid crystal composition, a liquid crystal film and a display device. The liquid crystal composition according to the present application may form a liquid crystal layer in which staining due to a thickness difference does not occur even in large-area coating such that a liquid crystal layer can be formed on a base layer having erosivity to a raw material since the liquid crystal composition may have a suitable solubility even in a solvent in which solubility is normally low.
    Type: Application
    Filed: January 27, 2015
    Publication date: May 28, 2015
    Inventors: Su Young RYU, Doo Young HUH, Seong Jin KIM, Chul In JOUNG, Ji Youn LEE
  • Patent number: 9040115
    Abstract: Disclosed is a negative C-type retardation compensator for a liquid crystal display. The negative C-type retardation compensator for the liquid crystal display includes polyarlate having a thio group or a sulfur oxide group in a polymer main chain thereof. Accordingly, the retardation compensator has an absolute value of negative retardation that is larger in a thickness direction that a retardation compensator which includes polyarylate having no thio group or sulfur oxide group in a polymer main chain thereof even though the retardation compensator having the thio group or sulfur oxide group and the retardation compensator having no thio group or sulfur oxide group are the same as each other in thickness. Thereby, the negative C-type retardation compensator for liquid crystal displays is capable of being desirably applied to the liquid crystal displays.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: May 26, 2015
    Assignees: LG Chem, Ltd., IUCF-HYU (Industry-University Cooperation Foundation Hanyang University
    Inventors: Hee-Jung Kim, Dong-Ryul Kim, Ho-Jun Lee, Sang-Uk Ryu, Hyo-Sun Lee, Boong-Goon Jeong, Dae-Woo Nam, Ju-Eun Cha
  • Patent number: 9011993
    Abstract: An optical compensation structure and a display device are disclosed. The former comprises a front side polarizer and a rear side polarizer arranged at both sides of a VA liquid crystal unit; the front side polarizer includes a front side polarization unit and a first front side TAC film; the absorption axis of the front side polarization unit is perpendicular to the horizontal normal of the VA liquid crystal unit; the rear side polarizer includes a rear side polarization unit and a biaxial film; and the absorption axis of the rear side polarization unit is parallel to the horizontal normal. The region having serious dark-state light leakage can be transferred from a horizontal viewing angle to a vertical viewing angle, which improves the display effect. Meanwhile, there is no addition of the number of layers of the biaxial film which reduces the cost.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: April 21, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Chih-Tsung Kang, Bo Hai
  • Patent number: 8999464
    Abstract: An optical film having a core layer containing a (meth)acrylic resin having a lactone ring structure, and an outer layer containing a cellulose acetate with a thickness of from more than 3 ?m to 20 ?m on at least one side of the core layer is excellent in nonbrittleness and adhesiveness to a polarizing element.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: April 7, 2015
    Assignee: Fujifilm Corporation
    Inventors: Hajime Nakayama, Katsumi Sasata
  • Patent number: 8993075
    Abstract: A stretched film comprised of a “B1” layer comprised of a thermoplastic resin 1, an “A” layer comprised of a styrene-based resin, and a “B2” layer comprised of a thermoplastic resin 2 stacked in that order and having a width of over 1000 mm, wherein a ratio of the “A” layer in the stretched film is 45 wt % or less, an average value of an orientation angle ? with respect to a width direction across at least 1000 mm of the width direction is 0°±1°, a variation in orientation angle ? is 0.5° or less, and a value of an Nz coefficient is ?3.5 to ?0.5 in range.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: March 31, 2015
    Assignee: Zeon Corporation
    Inventor: Tadashi Takizawa
  • Patent number: 8974875
    Abstract: A cellulose acylate film containing a cellulose acylate and a specific polymer, the specific polymer containing a repeating unit derived from a monomer represented by formula (1): wherein R1 represents a hydrogen atom or an aliphatic group having 1 to 4 carbon atoms; R2 represents a substituent; (A) represents an atomic group necessary to form a 5- or 6-membered ring; and n represents an integer of 0 to 4.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: March 10, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Yutaka Nozoe, Akio Tamura, Yu Naito
  • Patent number: 8962109
    Abstract: A liquid crystal display includes a liquid crystal cell; a back light including a light source; and a laminated polarizing plate including a protective film, a polarizing film, and a retardation film in sequence from the side of the back light, wherein the angle defined by any one of the long and short sides of the polarizing plate and the absorption axis of the polarization film is 45°, the retardation film has an in-plane slow axis parallel or orthogonal to the absorption axis of the polarizing film, and the liquid crystal display satisfies the formula: M=|?TD/?MD|?2.0, where M represents the ratio of the dimensional change rates in the entire polarizing plate, ?MD (%) represents a percent change of the polarizing plate in the absorption axis direction, and ?TD (%) represents a percent change of the polarizing plate in the direction orthogonal to the absorption axis.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: February 24, 2015
    Assignee: Fujifilm Corporation
    Inventor: Rikio Inoue
  • Patent number: 8936840
    Abstract: The purpose of the present invention is to provide a retardation film which has high retardation developability, good mechanical strength and good durability. This retardation film contains a cellulose derivative and at least one compound represented by general formula (1), wherein each of R1 and R2 independently represents an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; X1 represents a single bond, —NR4—, —O— or —S—; X2 represents a single bond, —NR5—, —NR5—(C?O)—, —O— or —S—; each of R4 and R5 independently represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; R3 represents a substituent; n represents an integer of 0-4; and when n is 2 or more, a plurality of R3s may be the same or different and adjacent R3s may be joined together to form a ring).
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: January 20, 2015
    Assignee: Konica Minolta, Inc.
    Inventors: Takatsugu Suzuki, Issei Nakahara, Hiroyoshi Kiuchi, Kiyoshi Fukusaka
  • Patent number: 8920889
    Abstract: An optical film having: a hard coat layer; an optically anisotropic layer; and a transparent support, wherein the optically anisotropic layer contains a liquid crystalline compound and a binder, the hard coat layer, the transparent support, and the optically anisotropic layer are laminated in this order, a surface of the optically anisotropic layer contains a fluorine-containing compound not forming covalent bond with the binder of the optically anisotropic layer, a surface of the optical film on the hard coat layer-formed side contains a fluorine-containing or silicone series compound being fixed by covalent bond, and a topmost surface properties of the optical film on hard coat layer-formed side satisfies the specific conditions.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: December 30, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Yoneyama, Yuta Takahashi
  • Patent number: 8911838
    Abstract: Disclosed is a material roll that includes a roll of an optical film having defect information markings printed thereon and is resistant to the formation of a defect by the transfer of a bump/dent deformation at the marking site. The material roll includes a long sheet of an optical film with polarizer wound into roll shape; and marking(s) formed at or in a vicinity of at least one defect site. The marking has an optical density of 1.5 or more, and a thickness of a center part of the marking is 1.5 ?m or less. The marking preferably has an optical density per unit thickness of 2.5 ?m?1 or more.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: December 16, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Takuya Nakazono, Seiji Umemoto, Tomohito Takita, Fumihito Shimanoe, Yuuki Yano, Teruaki Oosawa
  • Patent number: 8900676
    Abstract: A polarizing plate protective film forming a polarizing plate by sandwiching a polarizer with two of the polarizing plate protective films, wherein at least one of the two polarizing plate protective films exhibits Ro defined by Expression (I) of 0 to 10 mm and Rt defined by Expression (II) of ?20 to 20 mm, and also at least one of the polarizing plate protective films has a hard coat layer: Expression (I): Ro=(nx?ny)×d; Expression (II): Rt={(nx+ny)/2?nz}×d; wherein nx is a refractive index in a delayed phase axis direction in a plane of the polarizing plate protective film, ny is a refractive index in a direction at right angles to the delayed phase axis in the plane, nz is a refractive index in a film thickness direction, and d is a film thickness (nm).
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: December 2, 2014
    Assignee: Konica Minolta, Inc.
    Inventors: Takashi Takebe, Kunio Shimizu, Shigeki Oka
  • Patent number: 8889236
    Abstract: An optical film having: a hard coat layer; an optically anisotropic layer; and a transparent support, wherein the optically anisotropic layer contains a liquid crystalline compound and a binder, the hard coat layer, the transparent support, and the optically anisotropic layer are laminated in this order, a surface of the optically anisotropic layer contains a fluorine-containing compound not forming covalent bond with the binder of the optically anisotropic layer, a surface of the optical film on the hard coat layer-formed side contains a fluorine-containing or silicone series compound being fixed by covalent bond, and a topmost surface properties of the optical film on hard coat layer-formed side satisfies the specific conditions.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: November 18, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Yoneyama, Yuta Takahashi
  • Publication number: 20140335289
    Abstract: A method for producing an optical film of the present invention includes: (1) a step for obtaining a (meth)acrylic resin by copolymerizing methyl methacrylate and a copolymerizable monomer containing an acryloyl morpholine in the presence of a polymerization initiator and a chain transfer agent; and (2) a step for obtaining an optical film by melt extruding a resin composition that contains the thus-obtained (meth)acrylic resin and a cellulose ester resin at a (meth)acrylic resin:cellulose ester resin ratio of from 95:5 to 30:70. The (meth)acrylic resin obtained in step (1) is characterized in that: (a) the weight average molecular weight (Mw) thereof is from 2.0×104 to 5.0×105; (b) the total amount of the remaining methyl methacrylate and the remaining copolymerizable monomer is 0.05-1% by mass; (c) the amount of the remaining polymerization initiator is 0.01-0.5% by mass; and (d) the amount of the remaining chain transfer agent is 0.01-0.5% by mass.
    Type: Application
    Filed: November 30, 2012
    Publication date: November 13, 2014
    Inventors: Masataka Takimoto, Kenzo Kasahara, Akira Shimizu, Mutsumi Kasahara
  • Patent number: 8883315
    Abstract: Disclosed are an adhesive composition for glass bonding, a glass assembly and a display using the adhesive composition. The adhesive composition includes a urethane-acryl copolymer, a monomer mixture of an acrylic monomer having no hydroxyl group and a monomer having a hydroxyl group, an isocyanate cross-linking agent, and a photo-polymerization initiator. The adhesive composition has advantages of: favorable scattering prevention of broken glass pieces, excellent heat-resistant durability enabling prevention of damage to an image display apparatus caused by temperature change, no adverse effect upon transmittance of the image display apparatus, hence ensuring desired visibility.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: November 11, 2014
    Assignee: Dongwoo Fine-Chem Co., Ltd.
    Inventors: Woo-Ram Lee, In-Kyu Song, Hye-Rim Kwon
  • Patent number: 8883272
    Abstract: Provided are a cellulose acylate film used for optical compensation and additives used therefor and, more particularly, is a cellulose acylate film with mechanical physical properties, in particular, very improved modulus affecting film durability.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: November 11, 2014
    Assignee: SK Innovation Co., Ltd.
    Inventors: Won Seok Jang, Yong Gyun Cho, Won Yeob Kim, Jun Tae Choi, Myoung Lae Kim, Hyuk Jun Kim, Ki Yup Kim, Sung Ho Son
  • Patent number: 8871315
    Abstract: Optical films are described having a polymerized microstructured surface that comprises the reaction product of a polymerizable resin composition comprising at least one polymerizable ethylenically unsaturated triphenyl monomer. Also described are certain triphenyl(meth)acrylate monomers and polymerizable resin compositions.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: October 28, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Bryan V. Hunt, Kyle J. Lindstrom, Judith M. Invie, David B. Olson, Anthony M. Renstrom
  • Patent number: 8859060
    Abstract: A protective film of polarizer comprising an organic acid that has a solubility in water at 25° C. of at most 0.1% by mass and has an acid dissociation constant in a mixed solvent of tetrahydrofuran/water=6/4 by volume at 25° C. of from 2 to 7 can improve polarizer durability.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: October 14, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Nobutaka Fukagawa, Masato Nagura, Yoshio Ishii, Takayasu Yasuda, Naoyuki Nishikawa
  • Patent number: 8852697
    Abstract: Provided is a cellulose acetate film which has excellent retardation properties and exhibits low haze even under high-temperature and high-humidity conditions and which, in an alkaline saponification step, causes little dissolution of the film itself or additives in a saponifying liquid. The cellulose acetate film is characterized by comprising: a cellulose acetate which has an acetyl substitution degree of 2.0 to 2.5; and 5 to 15% by mass (relative to the cellulose acetate) of a component which contains a compound represented by general formula (1) wherein m is 0 and a compound represented thereby wherein in is more than 0 at a ratio of 45:55 to 0:100.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: October 7, 2014
    Assignee: Konica Minolta Advanced Layers, Inc.
    Inventor: Hideyuki Sato
  • Publication number: 20140287167
    Abstract: Provided is a polymerizable composition for providing a thin image-display device that does not exhibit display problems due to deformation of an image-display unit, allows high-brightness, high-contrast image display, and tolerates heat well. A polymerizable composition for forming a polymer layer interposed between an image-display unit in an image-display device and a light-transmitting protective part. Said polymerizable composition is characterized by containing the following: (1) a (meth)acryloyl group-containing compound that has a structural unit derived from a (poly)ester polyol and/or a structural unit derived from a (poly)carbonate polyol; (2) a (meth)acryloyl group-containing compound that has a C9+ hydrocarbon group; and (3) a photopolymerization initiator.
    Type: Application
    Filed: December 26, 2012
    Publication date: September 25, 2014
    Applicant: Showa Denko K.K.
    Inventor: Kazuhiko Ooga
  • Patent number: 8840974
    Abstract: Disclosed is an optical film having a hard coat layer on a cellulose ester film, which contains an ester compound composed of a furanose structure or a pyranose structures and a sum of a number of the furanose structures or the pyranose structure is 1 to 12, provided that a part of hydroxy groups of the furanose structure or the pyranose structure has been esterified and a part of hydroxy groups of the furanose structure or the pyranose structure remains.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: September 23, 2014
    Assignee: Konica Minolta Opto, Inc.
    Inventor: Ryota Kuki
  • Publication number: 20140199502
    Abstract: To provide a cellulose acylate film having low moisture permeability and low haze, a polarizing plate, and a liquid crystal display device using the same.
    Type: Application
    Filed: March 27, 2014
    Publication date: July 17, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Akio TAMURA, Yu NAITO, Yutaka NOZOE
  • Patent number: 8771810
    Abstract: A polymerizable composition containing a compound represented by the formula (I) or the formula (I?) is useful for formation of films having a high ?n with no coloration. P1 and P2 each are a polymerizable group; m1 and m2 each are an integer of from 1 to 10; A1 to A4 each are a predetermined cyclic group; R is a hydrogen atom or an alkyl; in the formula (I), Z1 is —COO—, —COO—, —OCO—CH?CH—, —NHCO— or —NR1CO—; L1 and L2 each are —O—, —S—, —COO—, —COO—, —OCO—CH?CH—, —OCOO—, —NHCO— or —NR1CO; n1 is 1 or 2; in the formula (I?), Z1 and Z2 each are —COO—, —OCO—, —NHCO— or NR1CO; L1 and L2 each are —O—, —S—, —COO—, —OCO—, —OCOO—, —NHCO— or NR1CO; n1 and n2 each are 1 or 2.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: July 8, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Masatoshi Mizumura, Shunya Katoh, Yasuhiro Ishiwata, Masaomi Kimura
  • Patent number: 8765235
    Abstract: Provided is a novel polymerizable azomethine compound which has a high ?n and is colorless. The compound is represented by the formula (I). P1 and P2 each are a polymerizable group; m1 and m2 each are an integer of from 1 to 10; R1 and R2 each are an alkyl group having from 1 to 4 carbon atoms, an alkoxy group having from 1 to 4 carbon atoms, an alkoxycarbonyl group having from 2 to 5 carbon atoms, an acyloxy group having from 2 to 5 carbon atoms, an acyl group having from 2 to 4 carbon atoms, an amide group having from 2 to 5 carbon atoms, a cyano group or a halogen atom; n1 and n2 each are an integer of from 0 to 4; R3 is a hydrogen atom, or an alkyl group having from 1 to 4 carbon atoms; Z1 and L1 each are a predetermined divalent group; n is 0, 1 or 2.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: July 1, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Masatoshi Mizumura, Shunya Katoh, Yasuhiro Ishiwata, Masaomi Kimura
  • Patent number: 8753726
    Abstract: An optical compensation film and a liquid crystal display characterized in that in a scattered-light intensity measurement for a film with an incident light with 90° in a scattered light profile of a goniophotometer, in the case of measuring so as to detect a scattered light intensity at the position of 130° from a light source, a difference in scattered light intensity between the case where a film slow axis is installed horizontally on a sample stand and the case where the film slow axis is installed vertically is 0.05 or less.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: June 17, 2014
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Takashi Sera, Takahiro Takagi
  • Patent number: 8748525
    Abstract: A polyester film is described, including a first polyester and a second polyester. The weight ratio of the first polyester to the second polyester ranges from 1:1 to 1:3. The glass transition temperature of the first polyester is higher than 140° C. and that of the second polyester is lower than 140° C.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: June 10, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Jyh-Horng Wu, Cheng-Hsing Fan, Ming-Tsong Leu, Chia-Hao Li, Yao-Tsu Wu, Chien-Pang Wu
  • Patent number: 8741399
    Abstract: The birefringent film of the present invention contains an aromatic polyester having a repeating unit represented by the following general formula (1). In the general formula (1), A(s), B(s), C(s), and D(s) are each independently represent a group selected from a halogeno group, an alkyl group which has 1 to 6 carbon atoms, and an aryl group. Also, a and b each represent an integer of 0 to 4, and c and d each represent an integer of 0 to 3. R1 represents a hydrogen atom, or an alkyl group which has 1 to 10 carbon atoms. R2 represents an alkyl group which has 2 to 10 carbon atoms. R3 to R6 each independently represent a group or atom selected from a hydrogen atom, a halogeno group, an alkyl group which has 1 to 6 carbon atoms, and an aryl group. Furthermore, l and m each represent an integer of 2 or more.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: June 3, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Tomoyuki Hirayama, Toshiyuki Iida, Yutaka Ohmori, Satoru Suzuki, Miyuki Kurogi, Hisae Shimizu