Patent application number | Description | Published |
20120038859 | POLARIZING THIN FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE - There is provided a polarizing film which comprises a polyvinyl alcohol-based resin layer including dichroic materials. The polarizing film has (a) a film thickness t of 0.5 μm to 5 μm, and (b) an absorbance (absorbance per unit) of 1.5 or higher for extraordinary light per film thickness of 1 μm relative to monochromatic light having a wavelength of 550 nm. | 02-16-2012 |
20120055607 | METHOD OF PRODUCING ROLL OF OPTICAL FILM LAMINATE WITH POLARIZING FILM - A method of producing a roll of an optical film laminate including a polarizing film includes providing a roll of a separator film-attached optical film laminate which includes the steps of: a continuous web of an optical film laminate including a polarizing film which consists of a polyvinyl alcohol type resin layer and has a thickness of 10 μm or less, and a separator film attached to the optical film laminate through an adhesive layer; in a state after the separator film is peeled, detecting a defect existing in the optical film laminate and the adhesive layer; upon detection of a defect in the continuous web of optical film laminate, recording a position of the defect; and winding into a roll a separator film-attached optical film laminate formed by attaching a separator film to the adhesive layer. | 03-08-2012 |
20120055608 | METHOD OF PRODUCING ROLL OF LAMINATE STRIP WITH POLARIZING FILM - A method of producing a roll of an optical film laminate strip includes the steps of: forming an optical film laminate which includes an optical film having a continuous web of polarizing film, and a resin film bonded to the optical film; creating a reference mark to extend across the optical film laminate in a width direction thereof; performing a defect inspection for detecting a defect existing in the optical film, and, when a defect is detected, recording a position of the defect in the form of a laminate widthwise position and a laminate lengthwise position as measured from the reference mark; cutting the optical film laminate along a direction parallel to the length direction to form a plurality of continuous webs of laminate strips; based on the widthwise position of the defect detected by the defect inspection, determining which of the cut laminate strips has the defect, and, with respect to a specific laminate strip which is determined to have the defect, storing information about the defect together with identification information for identifying the specific laminate strip; and winding each of the laminate strips into a roll. | 03-08-2012 |
20120055621 | METHOD FOR MANUFACTURING OPTICAL FILM LAMINATE INCLUDING POLARIZING FILM - A method for manufacturing an optical film laminate including subjecting a laminate including the non-crystallizable ester type thermoplastic resin substrate and the polyvinyl alcohol type resin layer formed on the non-crystallizable ester type thermoplastic resin substrate to an elevated temperature in-air stretching to form a stretched laminate comprising a stretched intermediate consisting of a molecularly oriented polyvinyl alcohol type resin, impregnating the dichroic material in the stretched laminate to form a dyed laminate including a dyed intermediate comprising a polyvinyl alcohol type resin layer having the dichroic material impregnated therein in an oriented state, and stretching the dyed laminate in boric acid solution to form an optical film laminate. | 03-08-2012 |
20120055622 | METHOD AND APPARATUS FOR SEQUENTIALLY LAMINATING OPTICAL FILM INCLUDING POLARIZING FILM, TO RECTANGULAR-SHAPED PANEL - A method of sequentially laminating a carrier film-attached optical film laminate to a rectangular-shaped panel having a long side and a short side, is provided. The optical film laminate includes an optical film including a thin polarizing film, and a carrier film attached to the optical film through an adhesive layer. The method includes the steps: forming a plurality of slits in the carrier film-attached optical film laminate in a width direction thereof at lengthwise given intervals to extend from a surface of the optical film on a side opposite to the carrier film to a depth reaching a surface of the carrier film adjacent to the optical film to thereby form an optical film sheet supported by the carrier film, between lengthwisely adjacent two of the slits; and laminating each of the optical film sheets to a respective one of the panels through the adhesive layer. | 03-08-2012 |
20120055623 | METHOD AND APPARATUS FOR CONTINUOUSLY PRODUCING OPTICAL PANEL ASSEMBLIES - A method of producing an optical panel assembly including the polarizing film in a continuous manner by laminating a polarizing film to a surface of a rectangular-shaped optical panel, is disclosed. The polarizing film is formed by performing a step of subjecting a laminate including a continuous web of a thermoplastic resin substrate and a PVA type resin layer formed on the substrate, to a 2-stage stretching consisting of a preliminary in-air stretching and an in-boric-acid-solution stretching, to reduce a thickness of the PVA type resin layer to 10 μm or less, and a step of causing a dichroic material to be absorbed in the PVA type resin layer. | 03-08-2012 |
20120056211 | POLARIZING FILM, OPTICAL FILM LAMINATE INCLUDING POLARIZING FILM, STRETCHED LAMINATE FOR USE IN PRODUCTION OF OPTICAL FILM LAMINATE INCLUDING POLARIZING FILM, PRODUCTION METHODS FOR THEM, AND ORGANIC EL DISPLAY DEVICE HAVING POLARIZING FILM - Provided is a continuous web of polarizing film for an organic EL display device which has a thickness of 10 μm or less and exhibits high optical characteristics. The polarizing film for an organic EL display device is made of a polyvinyl alcohol type resin having a molecularly oriented dichroic material, and formed through stretching to have a thickness of 10 μm or less and exhibit optical characteristics satisfying the following conditions: T≧42.5; and P≧99.5, wherein T is a single layer transmittance, and P is a polarization rate. The polarizing film for an organic EL display device may be prepared by subjecting a laminate comprising a non-crystallizable ester type thermoplastic resin substrate and the polyvinyl alcohol type resin layer formed on the substrate, to 2-stage stretching consisting of preliminary in-air stretching and in-boric-acid-solution stretching. | 03-08-2012 |
20120056340 | METHOD OF PRODUCING ROLL OF LAMINATE STRIP WITH POLARIZING FILM - A method of producing a roll of an optical film laminate strip including a polarizing film includes the steps of: forming a continuous web of optical film laminate including a polarizing film which consists of a polyvinyl alcohol type resin layer and has a thickness of 10 μm or less, wherein the polarizing film is formed by performing an stretching sub-step of subjecting a laminate comprising a continuous web of thermoplastic resin substrate and a polyvinyl alcohol type resin layer formed on the substrate, to a uniaxial stretching in a lengthwise direction of the laminate based on 2-stage stretching consisting of preliminary in-air stretching and in-boric-acid-solution stretching; cutting the continuous web of optical film laminate along a direction parallel to the length direction to form at least one continuous web of laminate strip having a given width; and winding the continuous web of laminate strip having the given width into a roll. | 03-08-2012 |
20120057104 | OPTICAL DISPLAY DEVICE HAVING POLARIZING FILM - Provided is an optical display device using a polarizing film which has a thickness of 10 μm or less and exhibits high optical characteristics. The optical display device comprises a continuous web of polarizing film which is made of a polyvinyl alcohol type resin having a molecularly oriented dichroic material, and formed through stretching to have a thickness of 10 μm or less and satisfy conditions expressed by the following formulas: P>−(10 | 03-08-2012 |
20120057107 | OPTICAL DISPLAY DEVICE HAVING POLARIZING FILM - Provided is an optical display device using a polarizing film which has a thickness of 10 μm or less and exhibits high optical characteristics. The optical display device comprises a continuous web of polarizing film which is made of a polyvinyl alcohol type resin having a molecularly oriented dichroic material, and formed through stretching to have a thickness of 10 μm or less and satisfy conditions expressed by the following formulas: P>−(10 | 03-08-2012 |
20120057231 | POLARIZING FILM, OPTICAL FILM LAMINATE COMPRISING POLARIZING FILM, AND STRETCHED LAMINATE FOR MANUFACTURING THE SAME - A polarizing film includes a polyvinyl alcohol (PVA) type resin having a dichroic material impregnated therein. The polarizing film is formed by stretching the PVA type resin, such that the thickness of the polarizing film is decreased to 10 μm or less, and. The polarizing film has optical properties which satisfy conditions represented by formulae: | 03-08-2012 |
20120057232 | POLARIZING FILM, OPTICAL FILM LAMINATE COMPRISING POLARIZING FILM, AND STRETCHED LAMINATE FOR MANUFACTURING THE SAME - A polarizing film includes a polyvinyl alcohol (PVA) type resin having a dichroic material impregnated therein. The polarizing film is formed by stretching the PVA type resin, such that the thickness of the polarizing film is decreased to 10 μm or less, and. The polarizing film has optical properties which satisfy conditions represented by formulae: | 03-08-2012 |
20120058291 | ROLL OF CONTINUOUS WEB OF OPTICAL FILM LAMINATE AND PRODUCTION METHOD THEREFOR - 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 μm 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. | 03-08-2012 |
20120058321 | POLARIZING FILM, OPTICAL FILM LAMINATE INCLUDING POLARIZING FILM, AND METHOD FOR MANUFACTURING THE SAME - An optical film laminate includes a substrate including a crystallizable ester type thermoplastic resin in the form of a continuous web; and a polarizing film including a polyvinyl alcohol type resin layer formed on the substrate, said polarizing film including a dichroic material impregnated therein in a molecularly oriented state, wherein the polarizing film is formed by providing a laminate including the polyvinyl alcohol type resin layer formed on a substrate including a crystallizable ester type thermoplastic resin in an amorphous state and subjecting the laminate to a 2-stage stretching process including a preliminary in-air stretching and an in-boric-acid-solution stretching under a temperature maintaining the amorphous state of the substrate, such that the polyvinyl alcohol type resin layer is stretched to a thickness of 10 μm or less, the polarizing film having optical properties based on the formulae P>−(10 | 03-08-2012 |
20120300300 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE LAYER FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE LAYER-ATTACHED OPTICAL FILM AND IMAGE DISPLAY - A pressure-sensitive adhesive composition for an optical film of the invention includes a (meth)acryl-based polymer(A), a polyether compound (B) having a polyether skeleton and a reactive silyl group and an ionic compound (C). The pressure-sensitive adhesive composition for an optical film has an antistatic function and can form a pressure-sensitive adhesive layer durable enough under severe conditions. | 11-29-2012 |
20130100529 | OPTICAL DISPLAY DEVICE HAVING POLARIZING FILM - Provided is an optical display device using a polarizing film which has a thickness of 10 μm or less and exhibits high optical characteristics. The optical display device comprises a continuous web of polarizing film which is made of a polyvinyl alcohol type resin having a molecularly oriented dichroic material, and formed through stretching to have a thickness of 10 μm or less and satisfy conditions expressed by the following formulas: P>−(10 | 04-25-2013 |
20130114139 | METHOD OF PRODUCING ROLL OF LAMINATE STRIP WITH POLARIZING FILM - A method of producing a roll of an optical film laminate strip including a polarizing film includes the steps of: forming a continuous web of optical film laminate including a polarizing film which consists of a polyvinyl alcohol type resin layer and has a thickness of 10 μm or less, wherein the polarizing film is formed by performing an stretching sub-step of subjecting a laminate comprising a continuous web of thermoplastic resin substrate and a polyvinyl alcohol type resin layer formed on the substrate, to a uniaxial stretching in a lengthwise direction of the laminate based on 2-stage stretching consisting of preliminary in-air stretching and in-boric-acid-solution stretching; cutting the continuous web of optical film laminate along a direction parallel to the length direction to form at least one continuous web of laminate strip having a given width; and winding the continuous web of laminate strip having the given width into a roll. | 05-09-2013 |
20140016198 | METHOD FOR PRODUCING POLARIZER - A method for producing a polarizer ( | 01-16-2014 |
20140044947 | METHOD FOR PRODUCING POLARIZER - A method for producing a polarizer ( | 02-13-2014 |
20140111858 | Polarizing plate with a pressure-sensitive adhesive layer and image display device - Provided is a polarizing plate with a pressure-sensitive adhesive layer which is excellent in reliability of optical properties and durability of pressure-sensitive adhesion. The polarizing plate with a pressure-sensitive adhesive layer comprises a polarizing film and a pressure-sensitive adhesive layer provided directly on at least one surface of the polarizing film. The pressure-sensitive adhesive layer comprises a pressure-sensitive adhesive composition containing a pressure-sensitive adhesive polymer, and an amount of an acid component in a total monomer component constituting the pressure-sensitive adhesive polymer is less than 8 wt %. | 04-24-2014 |
20140186568 | ROLL OF CONTINUOUS WEB OF OPTICAL FILM LAMINATE AND PRODUCTION METHOD THEREFOR - 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 μm 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. | 07-03-2014 |