Patent application number | Description | Published |
20100047485 | POLARIZING FILM - A polarizing film formed by orienting organic dyes composed of a lyotropic liquid crystal compound, which comprises an acenaphtho[1,2-b]quinoxaline-base compound, wherein the content of the acenaphtho[1,2-b]quinoxaline-base compound is less than 10 weight parts with respect to 100 weight parts of the organic dyes. | 02-25-2010 |
20100065974 | PROCESSES FOR PRODUCING COATING FLUID AND OPTICALLY ANISOTROPIC FILM - A process for the producing a coating fluid of the present invention comprises a step of adjusting a pH of the coating fluid by mixing ammonium hydroxide into an acid solution containing a lyotropic liquid crystal compound and a solvent. Further, a process for the producing an optically anisotropic film of the present invention comprises a step of obtaining an optically anisotropic film by casting the coating fluid produced by the aforementioned process for production of the coating fluid in a thin film state, followed by drying. | 03-18-2010 |
20100128211 | BIREFRINGENT FILM, LAMINATED FILM, AND IMAGE DISPLAY DEVICE - The present invention provides a thin and light-weight birefringent film having a desired Nz coefficient, such that an index ellipsoid satisfies a relationship of nx≧nz>ny. | 05-27-2010 |
20100220271 | METHOD OF PRODUCING OPTICAL LAMINATE AND IMAGE DISPLAYING APPARATUS - With regard to an optical laminate having a applied film containing a lyotropic liquid crystalline compound, the present invention provides a method of producing an optical laminate that can prevent this applied film from becoming white turbidity. | 09-02-2010 |
20120091393 | COMPOSITE FILM AND METHOD FOR MANUFACTURING A COMPOSITE FILM - There is provided a method for manufacturing a thin polarizing film having an absorption axis oblique to a width direction of the film which comprises the steps of: performing an orientation treatment in two directions in a plane of a support film; applying a solution containing a lyotropic liquid crystal compound onto a surface of the support film; and causing a column-shaped aggregate of the lyotropic liquid crystal compound to be oriented in a direction (orientation direction) equal to the vector sum of a direction of first orientation treatment and a direction of second orientation treatment. | 04-19-2012 |
20120244349 | PHOTOCURABLE PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PHOTOCURABLE PRESSURE-SENSITIVE ADHESIVE LAYER, AND PHOTOCURABLE PRESSURE-SENSITIVE ADHESIVE SHEET - Provided is a photocurable pressure-sensitive adhesive composition which does not cause oozing under ordinary temperature and pressure conditions and exhibits sufficient initial tack via drying and crosslinking. The photocurable pressure-sensitive adhesive composition is easily curable by light irradiation and can form a curable pressure-sensitive adhesive layer having high peel resistance. Also provided are a photocurable pressure-sensitive adhesive layer and a photocurable pressure-sensitive adhesive sheet. A photocurable pressure-sensitive adhesive composition is prepared which comprises a graft polymer obtained by grafting a chain that contains a monomer bearing a cyclic ether group onto a (meth)acrylic polymer that contains 0.2 to 10% by weight of hydroxyalkyl(meth)acrylamide monomer units, and a cationic photopolymerization initiator. A photocurable pressure-sensitive adhesive layer using such composition and a photocurable pressure-sensitive adhesive sheet are also prepared. | 09-27-2012 |
20130003389 | OPTICAL SHEET WITH ADHESIVE LAYER, METHOD FOR PRODUCING OPTICAL SHEET WITH ADHESIVE LAYER, LIGHT SOURCE USING OPTICAL SHEET WITH ADHESIVE LAYER, AND IMAGE DISPLAY DEVICE USING OPTICAL SHEET WITH ADHESIVE LAYER - Disclosed is an optical sheet with an adhesive layer, which has excellent adhesion, excellent aggregability and excellent long-term durability, and wherein an adhesive layer part does not fill recesses and projections over time, said recesses and projections having been formed by processing. Specifically, an optical sheet with an adhesive layer is produced by arranging an adhesive layer on a recessed and projected surface of an optical film which has been subjected to processing for forming recesses and projections. In addition, the optical sheet with an adhesive layer is bonded to various light sources or image display elements, thereby obtaining light sources or image display devices that have improved light extraction efficiency without changing the designs of the light sources or image display elements, while securing uniform light emission and improving viewing angles especially in devices that comprises the image display elements. | 01-03-2013 |
20130280438 | METHOD FOR PRODUCING POLARIZING FILM, AND LIQUID CRYSTAL DISPLAY DEVICE - A method for producing a polarizing film includes a step (1) of preparing a lyotropic liquid crystalline solution having electric conductivity of not more than 50 μS/cm (expressed in terms of 0.05% by weight) and containing a dichroic dye and a solvent, a step (2) of preparing a base material having at least one surface subjected to a hydrophilization treatment, and a step (3) of coating the solution prepared in the step (1) on the hydrophilized surface of the base material prepared in the step (2) at a coating rate of not less than 100 mm/second, and drying the solution. The polarizing film produced in the method has a dichroic ratio of 25 or more at a wavelength of 600 nm. | 10-24-2013 |
20140004341 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR OPTICAL MEMBERS, ADHESIVE OPTICAL MEMBER AND IMAGE DISPLAY DEVICE | 01-02-2014 |
20140093726 | ADHESIVE COMPOSITION, ADHESIVE LAYER, AND ADHESIVE SHEET - Provided is a pressure-sensitive adhesive composition capable of realizing a pressure-sensitive adhesive layer having satisfactory adhesion performance and a low dielectric constant. This pressure-sensitive adhesive composition is characterized by containing a methacrylic polymer with a glass transition temperature (Tg) of 0° C. or less obtained by polymerization of monomer components including 40-99.5 weight % of alkyl methacrylate having a C10-C18 alkyl group in a side chain. A pressure-sensitive adhesive layer and an adhesive sheet are also prepared from the said pressure-sensitive adhesive composition. | 04-03-2014 |
20140134432 | ADHESIVE AGENT COMPOSITION, ADHESIVE AGENT LAYER, AND ADHESIVE SHEET - A pressure-sensitive adhesive composition of the invention includes a (meth)acryl-based polymer obtained by polymerization of a monomer component including 25% by weight to 99.5% by weight of a cyclic structure-containing monomer and 0.5% by weight to 70% by weight of a branched structure-containing (meth)acryl-based monomer having a branched alkyl group of 3 to 18 carbon atoms at an ester end. The pressure-sensitive adhesive composition has a satisfactory level of adhesive performance and can form a pressure-sensitive adhesive layer with a lower dielectric constant. | 05-15-2014 |
20140370277 | ADHESIVE COMPOSITION FOR OPTICAL APPLICATIONS, ADHESIVE LAYER FOR OPTICAL APPLICATIONS, OPTICAL MEMBER, POLARIZING PLATE, AND IMAGE DISPLAY DEVICE - The purpose of the present invention is to provide: an adhesive composition for optical applications, which is capable of suppressing luminance unevenness without deteriorating the contrast characteristics in optical applications, and which can be used for optical members and prevents the optical members from separation in a reliability test; an adhesive layer; an optical member; an image display device and the like. An adhesive composition for optical applications, which contains a modified (meth)acrylic graft polymer and an isocyanate crosslinking agent, is prepared. The modified (meth)acrylic graft polymer is obtained by graft polymerizing chains, each of which contains a cyclic ether group-containing monomer, to the trunk polymer, and contains, as constituent components, an alkyl(meth)acrylate, a cyclic ether group-containing monomer, and an acyclic ether group-containing monomer. An adhesive layer for optical applications, which is formed from the composition, an optical member, an image display device and the like are also produced. | 12-18-2014 |