With Stain Or Dye Patents (Class 359/487.02)
  • Patent number: 9897823
    Abstract: A polarizing film is produced by swelling a polyvinyl alcohol film with water, uniaxially stretching it, dyeing it with an organic dichroic dye, and drying it, wherein a dichroic organic dye composition includes a combination of organic dyes having a dichroic ratio of 13 or higher used in an amount to keep the degree of polarization at 90% or more, and wherein the coloration dye composition comprises a combination of dyes having extremely low dichroic ratios of 4 or less or substantially having no dichroic ratio, laminating at least one layer of a transparent plastic sheet onto at least both sides of the polarizing film, curving the polarizing sheet so as to impart spherical or aspherical surfaces thereto to obtain a polarizing and injecting a transparent resin to the concave surface of the curved polarizing sheet to obtain an injection polarizing lens.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: February 20, 2018
    Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.
    Inventors: Hideaki Kimura, Masayuki Akaki, Taisuke Sasagawa, Toshihiko Takano, Terutaka Tokumaru
  • Patent number: 9784895
    Abstract: A colored low-polarizing film of a desired color is produced by causing a polyvinyl alcohol film to swell with water, stretching, dyeing with an organic dichroic dye, and drying it; a polarizing sheet including the film and transparent sheets attached to both sides of the film by an adhesive; and an injection-molded polarizing lens obtained by causing the sheet to curve to impart spherical or aspherical surfaces to obtain a curved polarizing lens and injecting a transparent resin onto the concave surface of the lens. The dye includes a dichroic organic dye and a coloration organic dye, wherein the dichroic composition includes a combination of dichroic dyes having a dichroic ratio of 13 or higher, wherein the coloration dye composition includes a combination of dyes having an extremely low dichroic ratio, of 4 or less, or substantially having no dichroic ratio.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: October 10, 2017
    Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.
    Inventors: Hideaki Kimura, Taisuke Sasagawa, Masayuki Akaki, Toshihiko Takano
  • Patent number: 9753411
    Abstract: Concerned with a cylindrical conductive belt for electrophotography which has made permanent curl less occur. The conductive belt has a continuous phase containing a thermoplastic polyester resin and discontinuous phases each containing any one or both selected from a polyether-ester amide and a polyether amide, and the discontinuous phases are present in such way as to extend in the peripheral direction of the belt; the belt having a crystallinity that is lower on the outer-peripheral surface side than on the inner-peripheral surface side.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: September 5, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kouichi Uchida, Hiroomi Kojima
  • Patent number: 9738819
    Abstract: Provided are a pressure-sensitive adhesive composition, an optical member, a polarizing plate and a display device. The pressure-sensitive adhesive composition having physical properties required for an optical member using a particular block copolymer and an antioxidant or a photostabilizer, which forms a fine phase change region in a crosslinking structure, and particularly having excellent bending preventability and storage stability may be provided. Such a pressure-sensitive adhesive composition may be used for optical uses, for example, to laminate various optical members, or apply an optical member to a display device.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: August 22, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Han Na Chi, No Ma Kim, Jeong Ae Yoon, Sung Soo Yoon, Min Ki Lee
  • Patent number: 9678340
    Abstract: A vehicular display apparatus includes a light source unit that emits laser light; a first optical system that uses a first projection surface, onto which a display image is projected, to make a virtual image discernible; a second optical system that uses a second projection surface, onto which the display image is projected, to make a real image discernible; a controller; and a switching mechanism that switch the two optical systems. The distance between the light source unit and first projection surface is smaller than the distance between the light source unit and second projection surface.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: June 13, 2017
    Assignee: DENSO CORPORATION
    Inventor: Naohito Kanamori
  • Patent number: 9638850
    Abstract: An object of the present invention is to provide a polarizer which is thin and light as well as has durability, and an optical member capable of forming a liquid-crystalline displaying apparatus for mobiles which is excellent in reliance. According to the present invention, there is provided a polarizer, which comprises a protecting film comprising an epoxy resin as a main component on at least one side of a polarizing film. This polarizer can be produced by a method of coating an uncured epoxy resin composition on at least one side of a polarizing film, and then curing the composition to form a protecting film. Also, an optical member comprising a laminate of the aforementioned polarizer and other optical layer exhibiting the optical function is provided and, further, a liquid crystal displaying apparatus comprising the optical member disposed on one side or both sides of a liquid-crystalline cell is provided.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: May 2, 2017
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yoshiki Matsuoka, Narutoshi Hayashi
  • Patent number: 9606373
    Abstract: Provided is a spherical or aspherical polarized mirrored glasses lens that substantially prevents the appearance of reflections caused by reflection from the mirrored surface, has a high transmittance, and with the use of a colored absorption-polarization film layer, allows arbitrary selection of the color of the field of view of the sunglasses user and the color of the lens as seen by others. A polarized mirrored glasses lens is fabricated, said lens being characterized by having, in order from the light-incidence side, at least a reflection-polarization film layer and an absorption-polarization film layer, and further characterized in that: the transmission axes of said layers are aligned; and the light-incidence side is a convex spherical or aspherical surface.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: March 28, 2017
    Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.
    Inventors: Terutaka Tokumaru, Kazuhisa Mitsuhata
  • Patent number: 9507067
    Abstract: A polarizing plate includes at least: a polarizer layer containing a polyvinyl alcohol-based film dyed with iodine; and one or more other layers except for the polarizer layer, in which the polarizer layer contains a compound which has polyiodide ion I5? reduction capability in iodide compound- and iodine-containing solutions, and at least one of the one or more other layers contain a compound which has polyiodide ion I5? formation capability in an iodide compound-containing solution.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: November 29, 2016
    Assignee: FUJIFILM CORPORATION
    Inventors: Mayumi Nojiri, Nobutaka Fukagawa, Yu Naito, Naoya Shimoju, Aiko Yoshida
  • Patent number: 9472780
    Abstract: The present invention discloses an organic electroluminescent display device and a display apparatus comprising a substrate, an organic electroluminescent pixel array disposed on the substrate, and a package film coated on an outside of the organic electroluminescent pixel array. The organic electroluminescent display device further comprises an optical film laminate body at a light output side thereof; and the optical film laminate body is a preformed integral component including a plurality of functional film layers. Since the optical film laminate body including the plurality of functional film layers can be bonded on organic electroluminescent display device by a single film-bonding process, it simplifies the manufacturing process, decreases the cost, reduces the thickness, and improves the flexibility of the organic electroluminescent display device. In addition, the present invention also discloses a display apparatus comprising the organic electroluminescent display device.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: October 18, 2016
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Long Wang, Qinghui Zeng, Xuan He, Xue Gao, Fei Liu, Yunping Di
  • Patent number: 9383494
    Abstract: A polarizing plate includes a polarizer and at least one protective film on at least one side of the polarizer. The protective film has an in-plane retardation (Re) of greater than about 10,000 nm at a wavelength of 550 nm, as calculated by Re=(nx?ny)×d, wherein nx and ny are indexes of refraction in x-axis and y-axis directions of the protective film, respectively, and d is a thickness of the protective film.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: July 5, 2016
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Kwang Ho Shin, Dong Yoon Shin, Eun Su Park, Hae Ryong Chung, Eun Kyeong Seo
  • Patent number: 9358768
    Abstract: A polarizing plate, a method of preparing the same and a liquid crystal display apparatus including the same are disclosed. The polarizing plate includes a polarizer and a polyester film formed on a surface of the polarizer, wherein the polyester film has a ratio of an elongation ratio in a machine direction to an elongation ratio in a transverse direction of about 1:0.8 to about 1:1.2, an in-plane retardation (Re) of about 500 nm or less at a wavelength of 550 nm, and an out-of-plane retardation (Rth) of about 10,000 nm or less at a wavelength of 550 nm.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: June 7, 2016
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Kwang Ho Shin, Eun Su Park, Dong Yoon Shin, Jong Hyuk Eun, Hae Ryong Chung, Ae Kyoung Kim, Han Saem Kang, Han Su Kim, A Ra Jo
  • Patent number: 9354357
    Abstract: A water soluble polyvinyl alcohol copolymer having a diad syndiotacticity of greater than about 60% and less than about 70%. In some embodiments, the water soluble polyvinyl alcohol copolymer is soluble in water at a concentration of at least 1 wt % at a temperature of less than 100° C. In other embodiments, the composition is soluble in water at a concentration of at least 5 wt % at a temperature in the range from about 90° C. to less than 100° C. The high solubility of the high syndiotactic poly vinyl alcohols disclosed herein may provide various advantages as described herein, including ease of processing and decreased use of harmful solvents.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: May 31, 2016
    Assignee: Sekisui Specialty Chemicals America, LLC
    Inventors: Yohei Nishimura, Regan Pollock, Richard Vicari
  • Patent number: 9291850
    Abstract: A polarizing plate includes a polarizer, a retardation film on a first side (e.g., a lower side) of the polarizer, and a protective film on a second side (e.g., an upper side) of the polarizer. The retardation film has an axis distortion angle between a fast axis of the retardation film and an absorption axis of the polarizer of about +0.03° to less than +0.2°. The protective film has an in-plane phase difference (Ro) of greater than about 10,000 nm and about 15,000 nm or less at a wavelength of 550 nm. A liquid crystal display apparatus includes the polarizing plate.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: March 22, 2016
    Assignee: CHEIL INDUSTRIES INC.
    Inventors: Ae Kyoung Kim, Han Saem Kang, Han Su Kim, Dong Yoon Shin, A Ra Jo, Hae Ryong Chung
  • Patent number: 9250371
    Abstract: An anti-reflective film includes a polarizing film and a compensation film, where the polarizing film includes a polymer, and a plurality of dichroic dyes having an absorption wavelength region in a range from about 380 nanometers to about 780 nanometers, and a reflective color of the anti-reflective film is substantially in a range of ?5?a*?5 and ?5?b*?5 in CIE-Lab color coordinates.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: February 2, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong Hoon Won, Myung Man Kim, Deuk Kyu Moon, Feifei Fang, Yong Joo Lee, Beom Seok Kim, Myung-Sup Jung
  • Patent number: 9194988
    Abstract: A polarizing dye dispersion, a light-polarizing article and a process for making light-polarizing article utilizing the polarizing dye dispersion. The aqueous polarizing dye dispersion comprises, in addition to a polarizing dye material, a non-ionic surfactant material comprising a plurality of surfactant molecules represented by the following general formula (I): wherein: the average of the number n of all the surfactant molecules ranges from 9 to 200; m is 1 or 2; R, identical or different for each surfactant molecule and each occurrence, independently is an alkyl; at least one R on each surfactant molecule is a C6-C12 straight-chain or branched alkyl; and X, identical or different for each surfactant molecule, independently is an H or a C1-C4 alkyl.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: November 24, 2015
    Assignee: Corning Incorporated
    Inventors: Jerome Vivien Davidovits, Bruno Dufour, David Henry
  • Patent number: 9146454
    Abstract: A method for providing a projection screen for receiving stereoscopic images may include providing a substrate with a contoured, reflective surface, wherein light reflected from the substrate substantially may undergo no more than a single reflection and may also include coating a first layer on the substrate with a contoured, reflective surface. The first layer may substantially maintain the same optical properties as the substrate without the first layer. The first layer may be substantially conformal to the surface of the substrate and also may be a self assembled monolayer coating which may include at least a functional group that is hydrophobic.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: September 29, 2015
    Assignee: RealD Inc.
    Inventors: David A. Coleman, Gary D. Sharp
  • Patent number: 9110363
    Abstract: Polarization preserving projection screens provide optimum polarization preservation for 3D viewing. The projection screens additionally provide improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed method for providing a projection screen comprises stripping an optically functional material from a carrier substrate, thus creating engineered particles from the optically functional material. The engineered particles may then be deposited on a second substrate to create a substantially homogeneous optical appearance of the projection screen.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: August 18, 2015
    Assignee: RealD Inc.
    Inventors: Joel Petersen, Christopher Rich, Raymond Jacob Lewandowski, Gary D. Sharp, David Coleman
  • Publication number: 20150146294
    Abstract: The purpose of the present invention is to provide a polarization plate the warping and deformation of which can be controlled when the polarization plate, and a display device that contains the polarization plate, is stored under conditions of high heat and humidity, while keeping the display device low profile. This polarization plate has a polarizing element 0.5-10 ?m in thickness that contains a dichroic pigment, a glass film, and an adhesion layer that is disposed between the polarizing element and the glass film and that comprises a cured material of an actinic ray curable composition.
    Type: Application
    Filed: May 21, 2013
    Publication date: May 28, 2015
    Inventor: Yasuhiro Watanabe
  • Publication number: 20150146293
    Abstract: The present invention addresses the problem of providing: a method for producing an optical film laminate that has a thin polarizing film and is free from unevenness in the degree of polarization in the film width direction; a thin polarizing film which is free from unevenness in the degree of polarization; and a liquid crystal display device. A method for producing an optical film laminate according to the present invention comprises: (1) a lamination step wherein a hydrophilic polymer layer is laminated on a thermoplastic resin base, thereby forming a laminate; (2) a stretching step wherein the laminate is stretched in the air, thereby forming a stretched laminate that comprises an oriented hydrophilic polymer layer; and (3) a dyeing step wherein the hydrophilic polymer layer is caused to adsorb a dichroic dye.
    Type: Application
    Filed: June 14, 2013
    Publication date: May 28, 2015
    Inventor: Tatsuya Sasaki
  • Publication number: 20150131035
    Abstract: Electronic devices may be provided with displays that have polarizers. A polarizer may have a polymer layer that has a portion covered with a dichroic dye to form a polarized region and a portion that is free of dichroic dye to form an unpolarized region. The unpolarized region may be formed by masking the polymer layer during a dye coating process. Masks may be formed from polymers. The shape of the mask may define the shape of the unpolarized region. The mask may be left in place within the polarizer or may be removed from the polarizer during fabrication. Unpolarized regions may also be formed by light bleaching, chemical bleaching, and material removal techniques. Bleached areas may be chemically stabilized. A moisture barrier layer may be incorporated into the polarizer to help prevent the unpolarized region from reverting to a polarized state.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Inventor: Cheng Chen
  • Patent number: 9030740
    Abstract: Photochromic-dichroic articles are provided, which include a substrate having a first surface, a fixed-polarized layer over the first surface of the substrate, and a photochromic-dichroic layer over the first surface of the substrate. The fixed-polarized layer optionally includes a fixed-colorant and has a first polarization axis. The photochromic-dichroic layer includes a photochromic-dichroic compound that is laterally aligned within the photochromic-dichroic layer, and which defines a second polarization axis. The first polarization axis and the second polarization axis are oriented relative to each other at an angle of greater than 0° and less than or equal to 90°. The photochromic-dichroic articles can provide, for example, increased optical density and/or increased kinetics when exposed to a given amount of actinic radiation.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 12, 2015
    Assignee: Transitions Optical, Inc.
    Inventors: Rachel L. DeMeio, Anil Kumar, John S. Ligas, Truman Wilt, Delwin S. Jackson, Henry Nguyen
  • Publication number: 20150124320
    Abstract: A composition for a polarizing film including a polyolefin and a dichroic dye represented by Chemical Formula 1: wherein, in Chemical Formula 1, Ar1 to Ar3, R1, R2, and n are defined in the detailed description.
    Type: Application
    Filed: March 14, 2014
    Publication date: May 7, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Deuk Kyu MOON, Sang Ho PARK, Yong Joo LEE, Ha Na KIM, Tae-Rae KIM, Beom Seok KIM, Jong Hoon WON, Myung Sup JUNG
  • Publication number: 20150116648
    Abstract: An optical film may include a polarizer configured to linearly polarize a first light to provide a linearly polarized light component. The optical film may further include a first semi-transmissive film overlapping the polarizer, configured to transmit the linearly polarized light component, and configured to reflect a first circularly polarized component of a second light. The first circularly polarized component of the second light may have a first wavelength. The optical film may further include a second semi-transmissive film overlapping the first semi-transmissive film, configured to transmit the linearly polarized light component, and configured to reflect a second circularly polarized component of the second light. The second circularly polarized component of the second light may have a second wavelength that is unequal to the first wavelength.
    Type: Application
    Filed: May 15, 2014
    Publication date: April 30, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: NaYoung SHIN, Ji-Hoon KIM, Beong-hun BEON, Sang-Gu LEE, Daewon KIM, MINSU KIM, SEUNGBEOM PARK, Jung-Hun LEE, YUN JANG, Kyunghwan JEON
  • Patent number: 9005493
    Abstract: A 3-d stereoscopic viewing lens which the retarder film is made of a PVA film. A 3-D stereoscopic viewing lens having a linear polarized film, one or more lens substrate layers, and an epoxy layer. A process of making retarder film including mounting a PVA film to an assembly line; wetting, cleaning, and washing the PVA film through said assembly line; softening, expanding and stretching the PVA film's x-axis through said assembly line; adding gap filling agent to the PVA film; stretching the PVA film's y-axis through a width frame holder and as a result transforming the PVA film into a retarder film.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: April 14, 2015
    Inventor: Roger Wen-Yi Hsu
  • Patent number: 8988775
    Abstract: A polarizing element comprising an alignment layer and a polarizing layer formed by aligning a dichroic coloring agent by deposition which are successively disposed on a substrate, wherein the alignment layer is a sol-gel film formed by using a material comprising at least (A) a sol of an inorganic oxide and (B) an alkoxysilane and/or a hexaalkoxydisiloxane, and the ratio of amounts by mole of Component (B) to solid components in Component (A) [(B)/(A)(solid components)] is 99.9/0.1 to 40/60; and a process for producing the polarizing element. The polarizing element can be produced in simple steps, the treatment of abrasion of the surface necessary for alignment of a dichroic coloring agent by deposition is facilitated, and haze due to formation of cracks is absent.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: March 24, 2015
    Assignee: Hoya Corporation
    Inventor: Hiroaki Yanagita
  • Publication number: 20150070763
    Abstract: There is provided a polarizing film that is excellent in external appearance and can contribute to the improvement of the display characteristics of an image display apparatus. polarizing film according to an embodiment of the present invention includes a polyvinyl alcohol-based resin film containing iodine. The polarizing film has a ratio I2/I1 between an iodine concentration on one surface and an iodine concentration I2 on another surface of 3.0 or more.
    Type: Application
    Filed: August 20, 2014
    Publication date: March 12, 2015
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shusaku Goto, Takashi Kamijo, Minoru Miyatake
  • Publication number: 20150062502
    Abstract: 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: Application
    Filed: November 4, 2014
    Publication date: March 5, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Ryuji SANETO, Humitake MITOBE, Jun NOGUCHI
  • Publication number: 20150043070
    Abstract: The present invention addresses a problem that a conventional thinned and high-transmittance polarizing plate has poor durability. Provided is a polarizing film in the form of a continuous web, which is comprised of a polyvinyl alcohol-based resin containing potassium and molecularly-oriented iodine, wherein the polarizing film has a thickness of 7 ?m or less, and exhibits a single transmittance of 44.0% or more, and wherein a mole ratio (PK) of elemental iodine (I) to elemental potassium (K) contained in the polarizing film is 1.8 or more.
    Type: Application
    Filed: July 31, 2014
    Publication date: February 12, 2015
    Inventors: Takeharu KITAGAWA, Shusaku GOTO
  • Publication number: 20150022888
    Abstract: A hybrid polarizer includes an absorbing element having a first major surface and a second major surface. The hybrid polarizer also includes a first birefringent reflective polarizer disposed on the first major surface of the absorbing element, the first birefringent reflective polarizer having a first pass axis and a first block axis. The hybrid polarizer further includes a second birefringent reflective polarizer disposed on the second major surface of the absorbing element, the second reflective polarizer having a second pass axis and a second block axis.
    Type: Application
    Filed: October 8, 2014
    Publication date: January 22, 2015
    Inventors: Michael F. Weber, Timothy J. Nevitt, Roger J. Strharsky
  • Patent number: 8922889
    Abstract: There is provided a cellulose acylate film, containing a hindered amin-based compound, wherein the hindered amine-based compound is contained in an amount of 0.001% by mass to 5% by mass based on cellulose acylate, a minimum value of Knoop hardness is 170 N/mm2 to 220 N/mm2, and the Knoop hardness is measured several times by a Knoop indenter, the Knoop indenter is rotated by a given angle in each measurement, and a rotation axis of the Knoop indenter is orthogonal to an upper surface of the cellulose acylate film.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: December 30, 2014
    Assignee: Fujifilm Corporation
    Inventors: Nobutaka Fukagawa, Masaki Noro, Shuuji Kanayama, Hiroshi Inada
  • Publication number: 20140362440
    Abstract: An iodine-based polarizer includes a polyvinyl alcohol-based film; and iodine adsorbed and oriented in the polyvinyl alcohol-based film, the iodine-based polarizer having be undergone a treatment with a treatment bath containing at least one reducing agent, the iodine-based polarizer containing an oxidized form of the reducing agent, wherein the total content of the reducing agent and the oxidized form is from 0.06×10?6 mol/g to 1.6×10?6 mol/g. The iodine-based polarizer has a sufficiently high level of transmittance, degree of polarization, and other optical properties and can suppress light leakage in short-wavelength.
    Type: Application
    Filed: January 5, 2012
    Publication date: December 11, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Muniridin Yasen, Daisuke Ogomi, Yuuji Saiki
  • Publication number: 20140340748
    Abstract: An apparatus for controlling a color of a film includes a dyeing bath to dip a washed PVA film in an aqueous iodine solution and an aqueous potassium solution and then dye the PVA film therewith, a complementary bath to dip the PVA film in an aqueous potassium solution and then dye the PVA film therewith, a device oven to dry the PVA film having the oriented iodine and potassium, a 4-stage oven to dry the PVA film dried in the device oven, and a central controller to predict a color value of the polarizing film.
    Type: Application
    Filed: September 20, 2012
    Publication date: November 20, 2014
    Inventors: Chang Song Lee, Ho Kyung Lee, Eungki Lee, DaeHyeon Kim, Eung Jin Jang
  • Publication number: 20140333999
    Abstract: There is provided a polyester-based primer composition including 100 parts by weight of a polyester resin, 1 to 20 parts by weight of water-dispersible particles, and water as a remainder. Since a polyester-based primer composition of the present disclosure is excellent in water resistance and solvent resistance differently from a urethane primer composition, the polyester-based primer composition may obtain sufficient adhesive strength between a protection film and a functional coating layer even without assistance from additives such as a cross-linking agent, and may retain stable adhesive strength for a long period of time.
    Type: Application
    Filed: December 20, 2013
    Publication date: November 13, 2014
    Inventors: Hwa-Sub Shim, Yi-Rang Lim, Jun-Wuk Park, Kyoung-Won Kim, Sung-Hyun Jeon
  • Publication number: 20140319490
    Abstract: A functional polarizing film includes a polarizing layer, at least one moisture-binding layer on a first surface of the polarizing layer, and at least one moisture-blocking layer disposed on a first surface of the moisture-binding layer.
    Type: Application
    Filed: April 23, 2014
    Publication date: October 30, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Nam-Jin KIM, Chul-Hwan PARK, Sang-Woo KIM, Mi-Kyung KIM
  • Patent number: 8865275
    Abstract: A light absorption anisotropic film, wherein content of a liquid crystalline non-colorable low molecular weight compound is 30% by mass or less; and which is obtained by fixing the alignment of a dichroic dye composition comprising at least one type of azo-based dichroic dye having nematic liquid crystallinity; and shows a diffraction peak derived from a periodic structure in a direction parallel to the alignment axis on measurement of X-ray diffraction. The light absorption anisotropic film is high in dichroism.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: October 21, 2014
    Assignee: Fujifilm Corporation
    Inventors: Shinichi Morishima, Nobutaka Iwahashi
  • Publication number: 20140285887
    Abstract: A method of producing a polarizing plate according to an embodiment of the present invention includes: stretching and dyeing a laminate including a resin substrate and a polyvinyl alcohol-based resin layer formed on one side of the resin substrate to produce a polarizing film on the resin substrate; laminating a first protective film on the polarizing film on an opposite side to the resin substrate; and peeling the resin substrate, followed by laminating a second protective film on the polarizing film on a side from which the resin substrate has been peeled. The laminating of at least one of the first protective film and the second protective film is performed through an adhesive having a moisture content of 10% or less.
    Type: Application
    Filed: December 3, 2013
    Publication date: September 25, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shusaku Goto, Takeshi Saitou, Masashi Shinagawa, Yuuki Nakano, Minoru Miyatake
  • Publication number: 20140254012
    Abstract: A polarization film, including: a hydrophobic polymer resin and a dichroic dye represented by Chemical Formula 1: wherein in Chemical Formula 1, wherein, in Chemical Formula 1, Ar1 is a substituted or unsubstituted C6 to C15 arylene group, Ar2 is a C6 to C15 arylene group substituted with at least one of a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a halogen atom and a halogen-containing group, Ar3 is a C6 to C15 arylene group substituted with an amide group, R1 is a substituted or unsubstituted C1 to C20 alkyl group or a substituted or unsubstituted C1 to C20 alkoxy group, R2 and R3 are each independently a substituted or unsubstituted C1 to C20 alkyl group, or R2 and R3 are linked to each other to form a ring, and n is 1 or 2.
    Type: Application
    Filed: November 26, 2013
    Publication date: September 11, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Deuk Kyu MOON, Sang Ho PARK, Yong Joo LEE, Jong Hoon WON, Hyeon Ho CHOI, Myung Man KIM, Young Hwan KIM, Feifei FANG, Myung Sup JUNG
  • Patent number: 8824047
    Abstract: A polarizing plate of the present invention includes a polyvinyl alcohol-based polarizer and transparent protective films provided on both sides of the polarizer with an adhesive layer interposed between the polarizer and each transparent protective film, wherein the transparent protective films each comprise a lactone ring structure-containing (meth)acrylic resin, each one of the transparent protective films has a thickness T1 (?m) of 10 to 35 ?m, and the polarizer has a thickness T2 (?m) which satisfies that the ratio (T2/T1) of T2 to the thickness T1 of each one of the transparent protective films falls within the range of 0.8 to 1.8. The polarizing plate is designed to be thin and can satisfy durability.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: September 2, 2014
    Assignees: Nitto Denko Corporation, Nippon Shokubai Co., Ltd
    Inventors: Naoki Tomoguchi, Youichirou Sugino, Nobuaki Iwamoto, Megumi Katou
  • Patent number: 8824048
    Abstract: An anisotropic dye layer containing a coordination polymer is disclosed. The a polarization control film containing an oriented dichroic dye in which light absorption spectrum of a molecule is reversibly changed by charge passing are disclosed.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: September 2, 2014
    Assignee: Konica Minolta Opto, Inc.
    Inventor: Yukihito Nakazawa
  • Publication number: 20140242300
    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 comprising 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 Ri and R3 independently represents a hydrogen atom, C1-20 straight-chain alkyl group, C3-20 branched alkyl group, C3-20 cycloalkyl group, 02-20 alkenyl group or C6-20 aromatic group, and R5 represents a substituent.
    Type: Application
    Filed: February 26, 2014
    Publication date: August 28, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Mayumi NOJIRI, Takahiro OHNO, Nobutaka FUKAGAWA, Yu NAITO, Hiroyuki ISHIKAWA, Naoya SHIMOJU
  • Publication number: 20140218797
    Abstract: [Object] A polarizing element and polarizing plate having improved optical properties and durability. [Solution] A polarizing element characterized in comprising a polyvinyl alcohol resin film adsorbing at least one dichromatic pigment that is a compound represented by formula (I) or a salt thereof as a free acid, and being stretched, wherein the polyvinyl alcohol resin has a degree of polymerization of 5,000 to 10,000: (wherein A represents a phenyl group or a naphthyl group having a substituent; R1-R6 each independently represent a hydrogen atom, a hydroxyl group, a lower alkyl group, a lower alkoxy group, a sulfo group, or a lower alkoxy group having a sulfo group; X represents an amino group optionally having a substituent, a benzoylamino group optionally having a substituent, a phenylamino group optionally having a substituent, a phenylazo group optionally having a substituent, or a naphthotriazole group optionally having a substituent; and m represents 0 or 1).
    Type: Application
    Filed: September 5, 2012
    Publication date: August 7, 2014
    Applicants: POLATECHNO CO., LTD., NIPPON KAYAKU KABUSHIKI KAISHA
    Inventor: Noriaki Mochizuki
  • Publication number: 20140218666
    Abstract: [Object]A polarizing element and polarizing plate having improved optical properties and durability. [Solution]A polarizing element comprising a film containing a compound represented in the following formula (I) or a salt thereof and a polyvinyl alcohol-based resin having a degree of polymerization from 5,000 to 10,000 (wherein R1 to R4 each individually represent a hydrogen atom, a lower alkyl group, or a lower alkoxyl group; and n represents 1-3).
    Type: Application
    Filed: September 5, 2012
    Publication date: August 7, 2014
    Applicants: POLATECHNO CO., LTD., NIPPON KAYAKU KABUSHIKI KAISHA
    Inventor: Noriaki Mochizuki
  • Publication number: 20140218628
    Abstract: [Object] A polarizing element and polarizing plate having improved optical properties and durability.
    Type: Application
    Filed: September 5, 2012
    Publication date: August 7, 2014
    Applicants: POLATECHNO CO., LTD., NIPPON KAYAKU KABUSHIKI KAISHA
    Inventor: Noriaki Mochizuki
  • Patent number: 8767296
    Abstract: Disclosed herein is an apparatus for preparation of a film exhibiting polarizing properties by dyeing a substrate film with iodine and then orienting the same through a continuous process, comprising a first bath equipped with a thermometer to measure a temperature of the first bath; a second bath equipped with a thermometer to measure a temperature of the second bath and a densitometer to measure a concentration of the second bath; a third bath in which the iodine-dyed PVA film is stretched by a drawing roller; an oven equipped with a thermometer to measure a temperature of the oven; and a central controller that predicts a transmittance of the polarizing film, and then, controls the temperatures of the first and second baths and the oven and an amount of a composition fed to the second bath.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: July 1, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Ho Kyung Lee, Chang Song Lee, Kyu Hwang Lee, Eung Jin Jang, Joong Suk Nah
  • Patent number: 8734918
    Abstract: A liquid crystalline coating solution which comprises: an azo compound represented by the following general formula (1); and a solvent to dissolve the azo compound: wherein Q1 is an aryl group which may have any substituent group; Q2 is an arylene group which may have any substituent group; R is a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, an acetyl group, a benzoyl group, or a phenyl group (these groups may have any substituent groups); and M is a counter ion.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: May 27, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Shoichi Matsuda, Kyoko Nishiguchi, Tadayuki Kameyama
  • Publication number: 20140139919
    Abstract: A method of manufacturing a polarizing plate according to an embodiment of the present invention includes: stretching and dyeing a laminate having a resin substrate and a polyvinyl alcohol-based resin layer formed on at least one side of the resin substrate to produce a polarizing film on the resin substrate; laminating an optically functional film on the laminate on a polarizing film side to produce an optically functional film laminate; and peeling the resin substrate from the optically functional film laminate. The peeling is performed so that an angle ? formed between a surface of the optically functional film laminate immediately before the peeling and a peeling direction of the resin substrate is smaller than an angle ? formed between the surface of the optically functional film laminate immediately before the peeling and a peeling direction of the polarizing film.
    Type: Application
    Filed: October 17, 2013
    Publication date: May 22, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shusaku Goto, Yuuki Nakano, Kentaro Ikeshima, Nobuyuki Haida, Minoru Miyatake, Osamu Kaneko
  • Publication number: 20140126054
    Abstract: To provide a polarizing element having a good polarizing property, and having a property of no discoloration by a treatment solution or pH of an adhesive. Provided is a polarizing element that comprises a film of a polyvinyl alcohol resin or a derivative thereof containing a disazo pigment represented by Formula (1), and having been stretched by a factor of at least three from the initial length, in which the polarizing element has the lowest transmissivity at 565 to 700 nm in the transmissivity when two pieces of polarizing plates having the polarizing element are superimposed such that the absorption-axis directions orthogonally intersect.
    Type: Application
    Filed: May 22, 2012
    Publication date: May 8, 2014
    Applicants: POLATECHNO CO., LTD., NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Noriaki Mochizuki, Takahiro Higeta, Takuto Nishiguchi
  • Publication number: 20140126053
    Abstract: An anti-reflective film includes a polarizing film and a compensation film, where the polarizing film includes a polymer, and a plurality of dichroic dyes having an absorption wavelength region in a range from about 380 nanometers to about 780 nanometers, and a reflective color of the anti-reflective film is substantially in a range of ?5?a*?5 and ?5?b?*5 in CIE-Lab color coordinates.
    Type: Application
    Filed: November 5, 2013
    Publication date: May 8, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong Hoon WON, Myung Man KIM, Deuk Kyu MOON, Feifei FANG, Yong Joo LEE, Beom Seok KIM, Myung-Sup JUNG
  • Patent number: 8717675
    Abstract: A polarizing film having a polyvinyl alcohol-based resin film on which an iodine-first component composite particle is absorbed and oriented. A first component is included in the iodine-first component composite particle prevents iodine having high sublimation characteristics from being sublimated and prevents a molecular structure of the iodine of the iodine-first component composite particle from being destroyed.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: May 6, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Soo Koh, Soon-Ryong Park, Chul-Woo Jeong, Hee-Seong Jeong, Woo-Suk Jung, Il-Ryong Cho, Tae-Kyu Kim, Jae-Yong Kim
  • Patent number: 8709567
    Abstract: A method of producing a roll of a continuous web of an optical film laminate, usable in a process of laminating an optical film sheet including a polarizing film and formed to a size corresponding to that an optical panel to a surface of the optical panel being fed to a lamination position, is disclosed. The polarizing film is prepared by subjecting a laminate including a thermoplastic resin substrate and a PVA type resin layer formed on the substrate, to uniaxial 2-stage stretching to reduce a thickness of the PVA type resin layer to 10 ?m or less, and causing a dichroic material to be absorbed in the PVA type resin layer. A carrier film is releasably attached to the continuous web of optical film laminate including the polarizing film, through an adhesive layer. A defect inspection is performed for the optical film laminate and the adhesive layer.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: April 29, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Takeharu Kitagawa, Takuya Nakazono, Shusaku Goto, Minoru Miyatake, Tomohiro Mori, Takashi Kamijo