Unsaturated Aliphatic Polymer (e.g., Vinyl, Etc.) Patents (Class 428/1.55)
  • Patent number: 11945984
    Abstract: A reinforcing film comprises a pressure sensitive adhesive layer laminated and fixed on a principal surface of a film substrate. The pressure sensitive adhesive layer is formed of a photocurable composition containing a photocurable agent and a base polymer having a crosslinked structure. The gel fraction of the photocurable composition is preferably 60% or more. The shear storage elastic modulus at 25° C. of the pressure sensitive adhesive layer is preferably 1×104 to 1.2×105 Pa. The shear storage elastic modulus at 25° C. of the pressure sensitive adhesive layer after photocuring is preferably 1.5×105 to 2×106 Pa.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: April 2, 2024
    Assignee: NITTO DENKO CORPORATION
    Inventors: Takeshi Nakano, Keiji Hayashi, Souya Jo, Shogo Sasaki, Kenichi Kataoka
  • Patent number: 11329250
    Abstract: A display device includes: a display panel including a front surface and a rear surface, the rear side being opposite to the front side; a front stacked structure on the front surface including a front bonding member disposed on the front surface; and a rear stacked structure on the rear surface including a rear bonding member disposed on the rear surface. A loss tangent of the front bonding member has a value greater than a loss tangent of the rear bonding member, the loss tangent being represented by an equation: (loss tangent)=(loss modulus)/(storage modulus), wherein the loss modulus refers to energy lost by viscosity of a material, and the storage modulus refers to energy stored without loss by elasticity of the material.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: May 10, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ju Hee Song, Sang Hyo Park, Byoung Su Lee, Tae Hyeog Jung, Won Ju Choi
  • Patent number: 11324133
    Abstract: Provided is an attachable/detachable display device comprising a polarizing film, the display device allowing a damaged window to be easily replaced, the window to be simply detached therefrom, a manufacturing process therefor to be simplified, and manufacturing unit costs therefor to be lowered, and being variously designable. The display device comprises: a touch screen; the polarizing film; the window; and an adhesiveness adjusting layer, which is on any one of the polarizing film, the touch screen and a touch screen cover layer attached to the touch screen, and is on at least one side of the polarizing film, wherein the adhesiveness adjusting layer adjusts an adhesive force of an attachable/detachable layer having an adhesive force of 0.1 gf/25 mm to 500 gf/25 mm.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: May 3, 2022
    Inventor: Young Su Kim
  • Patent number: 11099311
    Abstract: The present invention is a sheet-like optical film including a release film, a first pressure-sensitive adhesive layer, a polarizing film, and a surface protective film, laminated in this order; wherein a thickness of the polarizing film is 60 ?m or less, and when a virtual center plane f is a virtual plane located at an intermediate position in total thickness of the optical film, a distance x (?m) between the virtual center plane f and the surface protective film, and a distance y (?m) between the virtual center plane f and the release film satisfy a formula x?y>?20. The sheet-like optical film of the present invention enables the release film to be easily peeled even if a thin polarizing film is used.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: August 24, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Atsushi Kishi, Shinya Hiraoka, Hiromi Ikeshima
  • Patent number: 10987896
    Abstract: There is provided a display device including a first member, a window on the first member, a first adhesive layer between the first member and the window, and a light blocking layer between the window and the first adhesive layer, the window including a first window portion contacting the first adhesive layer and including a bending portion and a non-bending portion, and a second window portion connected to the bending portion, the second window portion being spaced from the non-bending portion and contacting the light blocking layer, wherein the first adhesive layer includes, a first adhesive portion including a first sub-adhesive portion contacting the bending portion, and a second sub-adhesive portion contacting the non-bending portion, and a second adhesive portion contacting the light blocking layer, and wherein the first sub-adhesive portion has a modulus less than a modulus of each of the second sub-adhesive portion and the second adhesive portion.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: April 27, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jongsuk Lee, Donghun No, Soyeon Eom, Kyungsu Lee, Jinhwa Jeon, Youngkuil Joo
  • Patent number: 10941321
    Abstract: Curable adhesive compositions are provided that can be cured using ultraviolet or visible light radiation. These curable adhesive compositions, which contain a curable (meth)acrylate copolymer, have a creep compliance that is less than 5(10?4) inverse Pascals at 25° C., a creep compliance that is greater than 1(10?3) inverse Pascals at 70° C., and a shear storage modulus greater than 40 kiloPascals when measured at 25° C. at a frequency of 1 radian/second.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: March 9, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Ross E. Behling, Jason D. Clapper, Albert I. Everaerts, Chun-Yi Ting, Mark F. Ellis, Karl E. Benson, Jianhui Xia
  • Patent number: 10640688
    Abstract: The present invention relates to a pressure-sensitive adhesive composition, a protective film for polarizers, which includes a cured product of the pressure-sensitive adhesive composition, a polarizer, and a liquid crystal display (LCD). In the present invention, a pressure-sensitive adhesive showing excellent endurance reliability in high-temperature and/or high-humidity conditions and having superior physical properties such as cuttability, re-peeling property, and workability can be provided. In particular, it is possible to provide the pressure-sensitive adhesive composition which can prevent light leakage that may occur in an LCD, even when being applied to a film having a low stress optical coefficient.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: May 5, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Se Ra Kim, Kee Young Kim, In Cheon Han
  • Patent number: 10202526
    Abstract: Provided are: an adhesive composition for a touch panel, including an acrylic resin, a first curing agent having one to three functional groups, a second curing agent having four to six functional groups, and an ultraviolet blocking agent containing a benzotriazole group; and an adhesive film for a touch panel, including a cured product of the composition.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: February 12, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Hu-Young Yoon, Sle Lee, Chan-Oh Yoon, Jang-Soon Kim
  • Patent number: 10196546
    Abstract: Embodiments of the present disclosure provide a frame sealing adhesive, a method for producing a frame sealing adhesive, a display panel, a method for manufacturing a display panel, and a display device. The frame sealing adhesive includes: a host adhesive material; and glass fibers having thermally conductive layers formed on their surfaces, wherein a thermal conductivity of the thermally conductive layers is greater than a thermal conductivity of the glass fibers.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: February 5, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Wei Guo
  • Patent number: 9927661
    Abstract: A liquid crystal display includes: a first substrate on which a display area and a non-display area disposed around the display area are defined; a second substrate disposed opposite to the first substrate; a common electrode disposed on the second substrate; a common power supply line disposed in the non-display area of the first substrate to provide a common voltage; and a spacer disposed on the common power supply line to connect the common power supply line and the common electrode, where the spacer includes a conductive ball, and the conductive ball includes a heating solution.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: March 27, 2018
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Hyung Jun Park, Byoung Sun Na, Seon Kyoon Mok, Seong Young Lee, Hwan Young Jang
  • Patent number: 9663687
    Abstract: The present invention relates to a pressure-sensitive adhesive composition, a protective film for polarizers, which includes a cured product of the pressure-sensitive adhesive composition, a polarizer, and a liquid crystal display (LCD). In the present invention, a pressure-sensitive adhesive showing excellent endurance reliability in high-temperature and/or high-humidity conditions and having superior physical properties such as cuttability, re-peeling property, and workability can be provided. In particular, it is possible to provide the pressure-sensitive adhesive composition which can prevent light leakage that may occur in an LCD, even when being applied to a film having a low stress optical coefficient.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: May 30, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Se Ra Kim, Kee Young Kim, In Cheon Han
  • Patent number: 9011995
    Abstract: The present invention relates to an acrylic pressure-sensitive adhesive composition, and more precisely, an acrylic pressure-sensitive adhesive composition which is prepared by copolymerization of a vinyl and/or acrylic monomer having a cross-linkable functional group and comprises 100 weight part of a high molecular weight (meth)acrylic copolymer which is prepared by copolymerization of a vinyl and/or acrylic monomer harboring a cross-linkable functional group and whose weight average molecular weight is 40˜100 times as high as the entanglement molecular weight, 5˜50 weight part of a low molecular weight (meth)acrylic copolymer which does not contain a cross-linkable functional group and whose weight average molecular weight is 2˜15 times as high as entanglement molecular weight, and 0.01˜10 weight part of a multifunctional cross-linking agent.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: April 21, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Seung-joon Park, In-cheon Han, Woo-ha Kim, Anna Lee, Suk-ky Chang
  • Patent number: 9011991
    Abstract: A lengthy stretched film made of a thermoplastic resin, having, over the width direction of at least 1300 mm, a value of an orientation angle ? to a take-up direction in a range of 40° to 50° and fluctuation thereof of 1.0° or less, and a value of an average Nz coefficient in a range of 1.3 to 2.0 and fluctuation thereof of 0.10 or less. A lengthy circularly polarizing plate constituted by laminating the lengthy stretched film with a lengthy polarizer. A reflective display type liquid crystal display device provided with the circularly polarizing plate constituted by trimming the lengthy circularly polarizing plate to a desired size.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: April 21, 2015
    Assignee: Zeon Corporation
    Inventor: Takeshi Asada
  • Patent number: 8945692
    Abstract: A method of manufacturing a liquid crystal display device with which response characteristics are able to be easily improved without using major equipment is provided. The method of manufacturing a liquid crystal display device includes steps of forming a first alignment film 22 including a polymer compound having a crosslinkable functional group as a side chain on one substrate of a pair of substrates 20 and 30; forming a second alignment film 32 on the other substrate of the pair of substrates 20 and 30; arranging the pair of substrates 20 and 30 so that the first alignment film 22 and the second alignment film 32 are opposed to each other, and sealing a liquid crystal layer 40 containing a liquid crystal molecule 41 having negative dielectric constant anisotropy between the first alignment film 22 and the second alignment film 32; and bridging the polymer compound to give pretilt to the liquid crystal molecule 41 after sealing the liquid crystal layer 40.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: February 3, 2015
    Assignee: Sony Corporation
    Inventors: Shunichi Suwa, Yuichi Inoue, Ryo Ogawa, Tsuyoshi Kamada, Masashi Miyakawa, Tadaaki Isozaki, Masahiko Nakamura
  • Patent number: 8936839
    Abstract: The present invention provides a display panel with a flat plate in which a member partially provided with a light blocking part is disposed in front of a display panel, and a curable resin therebetween is sufficiently cured even in an area behind the light blocking part. The display panel with a flat plate of the present invention includes: a flat plate provided with a light passing part and a light blocking part; a display panel; and an adhesive layer between the flat plate and the display panel, the adhesive layer being a cured resin layer obtainable by polymerization involving at least one reactive component selected from the group consisting of a (meth)acrylate oligomer, a bicyclic ring-containing (meth)acrylate monomer, and a hydroxyl group-containing (meth)acrylate monomer, a peroxide component, and a primer as reaction materials.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: January 20, 2015
    Assignees: Sharp Kabushiki Kaisha, Kyoritsu Chemical & Co., Ltd.
    Inventors: Akiyoshi Fujii, Tokio Taguchi, Chiaki Minari, Takashi Yoshizawa, Katsuhisa Senda, Kenta Ishino, Eishi Katakami, Tsubasa Shiine
  • Patent number: 8927071
    Abstract: A pressure-sensitive adhesive composition which is excellent in durability under high temperature and humidity conditions and can thus inhibit bright defect even when applied to a large-sized optical film; a pressure-sensitive adhesive; and an optical film. A pressure-sensitive adhesive composition including an acrylic copolymer (A) bearing a reactive functional group, an acrylic copolymer (B) and an isocyanate compound (C), wherein the quantity of the isocyanate compound (C) is 5 to 30 parts by weight per 100 parts by weight of a mixture of the acrylic copolymer (A) and the acrylic copolymer (B) and the elongation at break and 200% modulus as determined at 25 degrees C. by the tensile test are 300 to 1000% and 0.2 to 3 N/mm2 respectively.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: January 6, 2015
    Assignee: Nippon Carbide Industries Co., Inc.
    Inventors: Shinya Hattori, Hiroto Nakano, Akira Kamoi, Naomi Furue, Shuhei Masuda, Hideki Miyazaki, Masahito Saito
  • Publication number: 20140335290
    Abstract: A conductive sealant comprises a sealant material and conductive particles, wherein the conductive particles are of a composite material obtained by adding graphene or carbon nanotubes into a resin. The conductive sealant avoids the problem of bad electrical conduction of the display panel caused by the aggregation of graphene. A display panel and a manufacturing method thereof and a display device are further provided.
    Type: Application
    Filed: July 22, 2013
    Publication date: November 13, 2014
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yu Zhang, Jaegeon You
  • Publication number: 20140322457
    Abstract: A pressure-sensitive adhesive composition, comprising a (meth)acryl-based polymer (A); and an ionic compound (B) comprising an anion component and a cation component, wherein the (meth)acryl-based polymer (A) is an aromatic ring-containing (meth)acryl-based polymer (A) containing a monomer unit derived from an aromatic ring-containing alkyl (meth)acrylate. It is preferred that the anion component is at least one of anion components represented by the following formula (1): (CnF2n+1SO2)2N? (1) wherein n is an integer of 1 to 10; the following formula (2): CF2(CmF2mSO2)2N? (2) wherein m is an integer of 2 to 10; and the following formula (3): ?O3S(CF2)1SO3? (3) wherein 1 is an integer of 3 to 10.
    Type: Application
    Filed: November 16, 2012
    Publication date: October 30, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Atsushi Yasui, Yuusuke Toyama, Tomoyuki Kimura, Masayuki Satake
  • Publication number: 20140295108
    Abstract: The present invention discloses an adhesive composition, and a polarizing plate and liquid crystal display device including the same. More particularly, there are provided an adhesive composition which includes an acrylic copolymer having a functional group cross-linkable with isocyanate, a toluene diisocyanate-based cross-linking agent and an organic acid stabilizer, to inhibit a change in viscosity so as to improve storage stability and assure a sufficient pot-life, which in turn, improves process stability but reduces a curing time, thereby enhancing productivity, as well as a polarizing plate and liquid crystal display device including the same.
    Type: Application
    Filed: May 16, 2012
    Publication date: October 2, 2014
    Applicant: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Eun-Gu Han, Sang-Jin Lee, Kyung-Moon Jung
  • Patent number: 8821770
    Abstract: Microstructured films comprising surface modified inorganic oxide particles and polymerizable resins are described.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: September 2, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Clinton L. Jones, Brant U. Kolb, Taun L. McKenzie, David B. Olson, Nathaniel K. Naismith
  • Publication number: 20140242303
    Abstract: The present application is relates to a pressure-sensitive adhesive composition. The pressure-sensitive adhesive composition of the present application may form a pressure-sensitive adhesive having excellent durability and reliability, stress relaxation and reworkability. In addition, when the pressure-sensitive adhesive composition is used collaterally, for example, a coating process may be efficiently performed even when a coating solid content is high, thereby maintaining excellent productivity and forming a pressure-sensitive adhesive having excellent uniformity in thickness. The pressure-sensitive adhesive composition may be used for an optical film such as a polarizing plate.
    Type: Application
    Filed: May 6, 2014
    Publication date: August 28, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Min Ki Lee, No Ma Hoon Kim, Sung Soo Yoon, Su Jeong Kim
  • Publication number: 20140242302
    Abstract: Provided is a polarizing plate having improved single plate transmittance under high-temperature and high-humidity conditions, and a liquid crystal display device using the same. A laminate comprising a polarizer, and an adhesive layer adjoining to at least one surface of the polarizer, the adhesive layer containing a resin and a compound, etc. represented by the formula (1) below. 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: Application
    Filed: February 24, 2014
    Publication date: August 28, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Mayumi NOJIRI, Takahiro OHNO, Nobutaka FUKAGAWA, Yu NAITO, Hiroyuki ISHIKAWA, Naoya SHIMOJU
  • Publication number: 20140220264
    Abstract: Provided are a pressure sensitive adhesive composition, a protective film, an optical film and a display device. The pressure sensitive adhesive composition shows appropriate low-speed and high-speed peel strengths after formation of a cross-linked structure, and has a superior balance between the two. Accordingly, when the pressure sensitive adhesive composition is applied to a protective film, for example, a superior protection effect as well as easy peel-off upon high-speed peeling, which is advantageous for a high-speed process, are shown, and in addition, a superior antistatic property may be obtained during the process.
    Type: Application
    Filed: April 9, 2014
    Publication date: August 7, 2014
    Applicant: LG CHEM, LTD.
    Inventors: In Kyu PARK, No Ma KIM, In Ho HWANG, Min Joon KIM
  • Publication number: 20140186554
    Abstract: Disclosed are an adhesive for polarizing plates, a polarizing plate including an adhesive layer, and a liquid crystal display. The adhesive includes a (meth)acrylic copolymer, a curing agent, and a silane coupling agent, wherein the (meth)acrylic copolymer has an average molecular weight of at least 800,000 g/mol. The adhesive has a storage modulus ranging from approximately 8,000 Pa or more to less than approximately 27,000 Pa at 85° C. and at a frequency ranging from 10?3 rad/s to 102 rad/s after curing, and is configured to bond a protective film having a water vapor transmission rate (WVTR) of approximately 100 g/m2/day or less at 40° C. and 90% RH. The polarizing plate includes a polarizer, a first protective film on a top surface of the polarizer, a second protective film on a bottom surface of the polarizer, and an adhesive layer on a bottom surface of the second protective film.
    Type: Application
    Filed: December 26, 2013
    Publication date: July 3, 2014
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Ri Ra Jung, In Cheon Han
  • Publication number: 20140178608
    Abstract: Provided are a pressure-sensitive adhesive, a polarizing plate, and a liquid crystal display device. The pressure-sensitive adhesive may be used to provide a polarizing plate which has a tensile modulus that varies in a thickness direction, and for example, which has a smaller thickness and a lighter weight, and also satisfies all of the physical properties required for the polarizing plate such as durability, water resistance, workability and light leakage preventability, and a liquid crystal display device including the same.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 26, 2014
    Inventors: Sung Soo Yoon, No ma Kim, In Ho Hwang, In Kyu Park, Min Joon Kim
  • Patent number: 8758869
    Abstract: An optical element is provided. The optical element is a light-dividing element, for example an element that can divide incident light into at least two kinds of light having different polarized states. The optical element can be used to realize a stereoscopic image.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: June 24, 2014
    Assignee: LG Chem Ltd.
    Inventors: Sin Young Kim, Jae Hoon Shim, Ki Uk Lim, Yeong Rae Chang, Moon Soo Park, Soo Kyoung Lee, Hyun Hee Son, Hyuk Yoon
  • Patent number: 8747966
    Abstract: An optical element and a stereoscopic image display device are provided. The optical element is a light-dividing element, for example an element that can divide incident light into at least two kinds of light having different polarized states. Therefore, the optical element can be used to realize a stereoscopic image.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: June 10, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Eun Mi Seo, Sin Young Kim, Kyun Il Rah, Moon Soo Park, Seung Hun Chae
  • Patent number: 8734916
    Abstract: An optical device and a stereoscopic image display device are provided. The optical device according to one embodiment may be a light-dividing device, for example, a device that can divide incident light into at least two kinds of light having different polarized states. For example, the optical device can be used to realize a stereoscopic image.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: May 27, 2014
    Assignee: LG Chem Ltd.
    Inventors: Eun Mi Seo, Sin Young Kim, Kyun Il Rah, Moon Soo Park, Seung Hun Chae
  • Patent number: 8736798
    Abstract: An optical element is provided. The optical element shows excellent durability, hardness property and reworkability. Therefore, the optical element can have a stable light division property since the phase retardation property of the phase retardation layer in the optical element can be stably maintained for a long period of time under severe conditions. Also, it is possible to prevent side effects such as light leakage in an optical instrument to which the optical element is applicable. Also, the optical element can show excellent resistance to external pressure or scratches.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: May 27, 2014
    Assignee: LG Chem Ltd.
    Inventors: Sin Young Kim, Moon Soo Park, Seung Hun Chae, Hyuk Yoon
  • Publication number: 20140065325
    Abstract: 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: Application
    Filed: December 21, 2012
    Publication date: March 6, 2014
    Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Renwei Guo, Dong Chen
  • Publication number: 20130273266
    Abstract: Provided is an adhesive layer-equipped transparent surface material that can easily be bonded to another surface material (such as a display panel) and that, when bonded to another surface material, is less likely to have voids left at the interface between the adhesive layer and another surface material. An adhesive layer-equipped transparent surface material 1 comprises an adhesive layer 14 formed on at least one surface of a protective plate 10 (a transparent surface material), wherein the adhesive layer 14 has a layer portion 18 spreading over the surface of the protective plate 10 and a barrier portion 20 surrounding the periphery of the layer portion 18; and the layer portion 18 is made of a cured product of a layer portion-forming curable resin composition comprising a curable compound (II) and a non-curable oligomer (D).
    Type: Application
    Filed: June 10, 2013
    Publication date: October 17, 2013
    Inventors: Satoshi NIIYAMA, Naoko Aoki, Toyokazu Suzuki, Hitoshi Tsushima
  • Publication number: 20130273267
    Abstract: Provided is an adhesive layer-equipped transparent surface material that can easily be bonded to another surface material (a display panel, etc.) and that, when bonded to another surface material, is less likely to have voids left at the interface between the adhesive layer and another surface material. An adhesive layer-equipped transparent surface material 1 comprises an adhesive layer 14 formed on at least one surface of a protective plate 10 (a transparent surface material), wherein the adhesive layer 14 has a layer portion 18 spreading over the surface of the protective plate 10 and a barrier portion 20 surrounding the periphery of the layer portion 18; and the layer portion 18 has a shear modulus at 35° C. of from 0.5 to 100 kPa.
    Type: Application
    Filed: June 10, 2013
    Publication date: October 17, 2013
    Inventors: Satoshi Niiyama, Toyokazu Suzuki, Naoko Aoki, Hitoshi Tsushima
  • Patent number: 8535576
    Abstract: Inorganic nanoparticles having a refractive index of at least 1.60 wherein the nanoparticles are surface modified with a surface treatment comprising a compound comprising a carboxylic acid end group and a C3-C8 ester repeat unit.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: September 17, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Clinton L. Jones, Brant U. Kolb, Taun L. McKenzie, David B. Olson, Nathan K. Naismith
  • Patent number: 8410188
    Abstract: A sealant for a one drop fill process is characterized by curing through two steps consisting of photocure using visible light from which 400 nm or shorter wavelengths are cut off and thermal cure and, when in contact with a liquid crystal composition, is less contaminating to the liquid crystal composition with a photo radical initiator, and exhibits high adhesive strength to a substrate. The sealant contains (1) a titanocene photo radical initiator, (2) a photocuring resin, (3) a latent epoxy curing agent and, if necessary, (4) a monomer having at least two glycidyl ether groups per molecule as a thermosetting resin.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: April 2, 2013
    Assignee: Adeka Corporation
    Inventors: Hirokatsu Shinano, Hiroya Fukunaga, Kazuyuki Itano
  • Patent number: 8367744
    Abstract: Disclosed is a sealant composition for a liquid crystal display device, the sealant composition including a (meta) acrylate compound as expressed in Chemical Formula 1 below
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: February 5, 2013
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Ki In Son, Joo Hyun Park, Gyu Won Cho
  • Publication number: 20120328800
    Abstract: 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: Application
    Filed: February 28, 2011
    Publication date: December 27, 2012
    Inventors: Sung Soo Yoon, No Ma Kim, In Ho Hwang, In Kyu Park, Min Ki Lee
  • Patent number: 8282863
    Abstract: Microstructured films comprising surface modified inorganic oxide particles, surface modified inorganic nanoparticles having a high refractive index, and polymerizable resins are described.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: October 9, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Clinton L. Jones, Brant U. Kolb, Taun L. McKenzie, David B. Olson, Nathan K. Naismith
  • Patent number: 8236872
    Abstract: A photocationically polymerizable adhesive composition and an optical member, the photocationically polymerizable adhesive composition including about 75 to about 99.8 parts by weight of a compound including one of aliphatic epoxy, alicyclic epoxy, oxetane, and vinyl ether compounds, about 0.1 to about 5 parts by weight of a titanate coupling agent, and about 0.1 to about 20 parts by weight of a photopolymerization initiator, wherein a sum of weights of the compound, the titanate coupling agent, and the photopolymerization initiator is 100 parts by weight.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: August 7, 2012
    Assignee: Cheil Industries, Inc.
    Inventors: Cheong Hun Song, Hiroshi Ogawa, Tatsuhiro Suwa
  • Publication number: 20110287196
    Abstract: A switchable window comprising a coating layer disposed between a first substrate and a second substrate, the coating layer comprising a plurality of liquid crystals, at least one monomer, and at least one oligomer wherein the weight percentage of the at least one oligomer is greater than the weight percentage of the at least one monomer.
    Type: Application
    Filed: May 19, 2010
    Publication date: November 24, 2011
    Inventors: Robert Shaw, Adrian deKrom
  • Publication number: 20110236605
    Abstract: A pressure-sensitive adhesive composition which is excellent in durability under high temperature and humidity conditions and can thus inhibit bright defect even when applied to a large-sized optical film; a pressure-sensitive adhesive; and an optical film. A pressure-sensitive adhesive composition comprising an acrylic copolymer (A) bearing a reactive functional group, an acrylic copolymer (B) and an isocyanate compound (C), wherein the quantity of the isocyanate compound (C) is 5 to 30 parts by weight per 100 parts by weight of a mixture of the acrylic copolymer (A) and the acrylic copolymer (B) and the elongation at break and 200% modulus as determined at 25 degrees C. by the tensile test are 300 to 1000% and 0.2 to 3 N/mm2 respectively.
    Type: Application
    Filed: August 6, 2009
    Publication date: September 29, 2011
    Applicant: NIPPON CARBIDE INDUSTRIES CO., INC.
    Inventors: Shinya Hattori, Hiroto Nakano, Akira Kamoi, Naomi Furue, Shuhei Masuda, Hideki Miyazaki, Masahito Saito
  • Patent number: 7923080
    Abstract: A liquid crystal display which has spacers reliably joined with a pair of substrates of the liquid crystal display by using spacers adapted to the purpose with respect to material, structure, method of joining with the substrates, etc. A pair of substrates can be reliably joined with spacers, and the strength of the liquid crystal display against an external pressure as well as display characteristics can be thereby improved. A manufacturing methods for such a liquid crystal display is also disclosed.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: April 12, 2011
    Assignee: Fujitsu Limited
    Inventors: Katsuji Ebisu, Takahiro Kashikawa, Keiji Watanabe
  • Patent number: 7910181
    Abstract: Various embodiments of the present invention are directed to methods for manufacturing complex, anisotropic materials with desirable properties for information storage, processing, and display. Certain of these methods involve employing a magnetic field during manufacture to induce desired orientations of precursors, subunits, and/or molecular subassemblies. The applied magnetic field steers the precursors, subunits, and/or molecular subassemblies into desirable orientations while the precursors, subunits, and/or molecular subassemblies are assembled or self-assemble into a complex, anisotropic material. One embodiment of the present invention is a class of new, complex, well-ordered, network-like materials that include a ferromagnetic-material-based framework in which organic and/or organometallic compounds are organized.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: March 22, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Patricia A. Beck, Sean Zhang
  • Publication number: 20110038045
    Abstract: An optical film, suitable or use in, or as a component of, an image display device or apparatus (for example, a LCD device or a polarizer assembly), comprises a hydrogenated vinyl aromatic/conjugated diene block copolymer that has a near zero optical retardation at all light incidence angles (measured using incident light at a wavelength of 633 nanometers).
    Type: Application
    Filed: April 24, 2009
    Publication date: February 17, 2011
    Inventors: Weijun Zhou, Stephen F. Hahn, Charles F. Diehl, Kurt A. Koppi
  • Patent number: 7858159
    Abstract: The photocurable composition for a sealant of the present invention includes a compound represented by general formula (1): A1-Y1—B1—Y2-A2??(1) (wherein A1 and A2 each represents, independently, a monovalent group having a cyclic ?-electron conjugated structure; Y1 and Y2 each represents, independently, a divalent group represented by general formula (4); and B1 represents (i) a divalent alicyclic hydrocarbon group, (ii) a divalent aromatic hydrocarbon group, (iii) a divalent heterocyclic group, (iv) a divalent aliphatic hydrocarbon group of 1 to 6 carbon atoms, or (v) a divalent group in which two or more group selected from the group consisting of a divalent alicyclic hydrocarbon group, a divalent aromatic hydrocarbon group, a divalent heterocyclic group, a divalent aliphatic hydrocarbon group of 1 to 6 carbon atoms, a carbonyl group, an ether group, a thioether group, and a SO2 group are linked).
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: December 28, 2010
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Hisayosi Arai, Hiroko Sakurai
  • Patent number: 7851033
    Abstract: A photo-sensitive adhesive for a flexible liquid crystal display is provided, comprising the following components: an urethane oligomer; a reactive monomer with phenyl group; and a photo-initiator. In an embodiment, the phenyl group of the reactive monomer has a weight ratio of 40 wt %, base on the total weight of the reactive monomer.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: December 14, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Wen-Pin Chuang, Su-Mei Wei, Kung-Lung Cheng, Shih-Hsien Liu
  • Publication number: 20100297368
    Abstract: The present invention relates to an acrylic pressure-sensitive adhesive composition, a polarizing plate and a liquid crystal display device, using the same. More specifically, the present invention relates to an acrylic pressure-sensitive adhesive composition having optimal stress releasing property which comprises an optically compensated acrylic copolymer (A) containing a cross-linkable functional group, an optically compensated acrylic copolymer (B) containing no cross-linkable functional group, and a multi-functional cross-linking agent (C). A polarizing plate and a liquid crystal display device comprising the pressure-sensitive adhesive composition meets with major properties such as adhesion endurance reliability, with effectively providing optical compensation effect and stress release effect, and has an effect of improving a light leakage phenomenon.
    Type: Application
    Filed: October 22, 2007
    Publication date: November 25, 2010
    Applicant: LG CHEM LTD.
    Inventors: Seung Park, No Ma Kim, In Cheon Han, Kee Young Kim, Jeong Min Ha
  • Patent number: 7824746
    Abstract: A liquid crystal sealing material comprising (a) a radiation curable resin represented by the general formula (1) below, (b) a photopolymerization initiator and (c) a filler having an average particle diameter of not more than 3 ?m. (In the formula (1), R1 represents a hydrogen atom or a methyl group; R2 may be the same or different and represents a hydrogen atom, a halogen atom, a hydroxyl group, a monovalent linear, branched or cyclic alkyl group having 1-10 carbon atoms or an alkoxy group having 1-10 carbon atoms; m represents an integer of 1-4; R3 represents a hydrogen atom or a methyl group; R4 represents a linear, branched or cyclic alkyl group having 1-10 carbon atoms; 1 represents a range of positive numbers from 1 to 5; and the repeating unit number n represents a range of positive numbers from 0 to 20.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: November 2, 2010
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Masahiro Imaizumi, Yasumasa Akatuka, Naoyuki Ochi, Eiichi Nishihara, Masaru Kudou, Toyohumi Asano, Naoki Toneda, Masahiro Hirano
  • Publication number: 20100221459
    Abstract: An adhesion promoter for enhancing the bond between adjacent layers of a multilayer structure to prevent delamination thereof is disclosed. The adhesion promoter comprises an aromatic polyimide-based UV-cured acrylate. Also disclosed are laminated structures including liquid crystal displays and bonded missile domes that utilize an adhesion promoter of the invention, and methods for fabricating such structures.
    Type: Application
    Filed: May 4, 2010
    Publication date: September 2, 2010
    Inventor: Young J. Chung
  • Patent number: 7758933
    Abstract: A pressure-sensitive adhesive based on at least 50% of one or more block copolymers, at least one block copolymer being composed at least in part on the basis of (meth)acrylic acid derivatives, the at least one block copolymer comprising at least the unit P(A)-P(B)-P(A), comprising at least one polymer block P(B) and at least two polymer blocks P(A), where P(A) independently of one another represent homopolymer or copolymer blocks made up of monomers of group A, the (co)polymer blocks P(A) each having a softening temperature in the range from 0° C. to +175° C., P(B) represents a homopolymer or copolymer block comprising monomers of group B, the (co)polymer block P(B) having a softening temperature in the range from ?130° C. to +10° C., and the (co)polymer blocks P(A) and P(B) are not homogeneously miscible with one another at 25° C., characterized in that the adhesive has a refractive index nd,a of nd,a?1.52 at 25° C., at least one of the (co)polymer blocks P(A) have a refractive index nd,A of nd,A?1.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: July 20, 2010
    Assignee: teas SE
    Inventors: Thilo Dollase, Marc Husemann
  • Patent number: 7749577
    Abstract: Provided are multilayer laminates having one or more layers comprising twisted nematic liquid crystals and one or more layers of a polymeric sheet comprising a polymer with a modulus between 20,000 psi (138 MPa) and 100,000 psi (690 MPa). The twisted nematic liquid crystal layers reflect infrared radiation. Thus, the multilayer laminates are useful to reduce the transmission of infrared energy. For example, in some embodiments the multilayer laminates are useful as windows to reduce energy consumption necessary to cool the interior of a structure such as an automobile or building. Preferably, the multilayer laminates retain the beneficial properties of safety glass. The multilayer laminates may include additional layers such as infrared absorbing layers, half wave plates, and the like, to minimize the transmission of infrared energy. The multilayer laminates may also include further additional layers such as polymeric films, polymeric sheets, rigid sheets, and the like.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: July 6, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Marc B. Goldfinger, Richard A. Hayes, Lee A. Silverman