Patent application number | Description | Published |
20080200621 | Retardation Film, Novel Polymer, Optical Film, and Image Display Device - A retardation film comprising a monolayer film having a birefringent chain polymer orientated. The polymer has a repeating unit of the structure of the general formula: (V) wherein R | 08-21-2008 |
20080291389 | Elliptically Polarizing Plate and Image Display Apparatus Using the Same - Provided is a very thin elliptically polarizing plate having broadband and wide viewing angle, a simple method of producing the same, and an image display apparatus using the elliptically polarizing plate. An elliptically polarizing plate of the present invention includes a polarizer, a protective layer formed on one side of the polarizer, a first birefringent layer serving as a λ/2 plate, and a second birefringent layer serving as a λ/4 plate in the stated order. In the plate, an absorption axis of the polarizer and a slow axis of the first birefringent layer form an angle α of one of 10° to 20° and −10° to −20°, and the absorption axis of the polarizer and a slow axis of the second birefringent layer form an angle β of one of 65° to 85° and 5° to 25°. | 11-27-2008 |
20090017203 | METHOD FOR PRODUCING OPTICAL FILM - This invention provides a method for producing an optical film, the method comprising a rubbing treatment step of rubbing the surface of a lengthy plastic film F with a rubbing roll | 01-15-2009 |
20090040434 | Method of producing elliptically polarizing plate and image display apparatus using the elliptically polarizing plate - To provide a method of producing a broadband and wide viewing angle elliptically polarizing plate having excellent properties in an oblique direction, the elliptically polarizing plate, and an image display apparatus. | 02-12-2009 |
20090046229 | OPTICAL COMPENSATION PLATE, LIQUID CRYSTAL CELL, AND LIQUID CRYSTAL DISPLAY DEVICE - An optical compensation plate provided in a liquid crystal cell in which a distance of a liquid crystal layer is held through a spacer, in which the optical compensation plate is formed in such a way that a layer thickness becomes thin toward a central portion from an end portion. As the spacer, a spherical fine particle is employed. As a liquid crystal cell, a VA mode liquid crystal cell is employed. Since the optical compensation plate of the present invention has a thinner layer thickness in the central portion in response to a decrease in a cell gap in the central region of the liquid crystal cell, light leakage in the central region of the liquid crystal layer can be prevented well. | 02-19-2009 |
20090052028 | OPTICAL FILM, METHOD OF PRODUCING THE SAME, AND IMAGE DISPLAY APPARATUS USING THE OPTICAL FILM - An object of the present invention is to provide an optical film capable of contributing to reduction in thickness, preventing uneven heating, and favorably preventing light leak in black display, and an image display apparatus using such an optical film. An optical film of the present invention includes a polarizer, a first optical compensation layer having a refractive index profile of nx>ny=nz, and a second optical compensation layer having a refractive index profile of nx>ny>nz in the stated order. In the optical film, an angle formed between an absorption axis of the polarizer and a slow axis of the first optical compensation layer is +17° to +27° or −17° to −27°, an angle formed between the absorption axis of the polarizer and a slow axis of the second optical compensation layer is +85° to +95°, and an Nz coefficient of the second optical compensation layer is 1.2≦Nz≦2. | 02-26-2009 |
20090068472 | METHOD OF PRODUCING AN OPTICAL FILM, AND IMAGE DISPLAY APPARATUS USING THE OPTICAL FILM OBTAINED BY THE PRODUCTION METHOD - Provided is a method of producing an optical film having excellent durability and capable of contributing to reduction in thickness, preventing uneven heating, and favorably preventing light leak in black display. The method of producing an optical film includes the steps of: applying an application liquid containing a liquid crystal material to an alignment substrate; forming a first optical compensation layer on a substrate surface by aligning the liquid crystal material; transferring the first optical compensation layer to a surface of a transparent protective film; laminating a polarizer on the surface of the transparent protective film; and forming a second optical compensation layer on a surface of the first optical compensation layer. The polarizer and the first optical compensation layer are arranged on opposite sides through the transparent protective film. The first optical compensation layer and the second optical compensation layer are formed so that angles formed between respective slow axes and an absorption axis of the polarizer are set within specific ranges. | 03-12-2009 |
20090096966 | Liquid Crystal Cell Substrate With Color Filter, Liquid Crystal Cell And Liquid Crystal Display - The present invention provides a liquid crystal cell with a color filter having a transparent substrate and a color filter, where the retardation value Rth(B), Rth(G) and Rth(R) in the thickness direction, which is represented by the following formula (1) in the blue region, the green region and the red region of the color filter, satisfy the following formula (2) or (3): | 04-16-2009 |
20090296027 | ELLIPTICALLY POLARIZING PLATE AND IMAGE DISPLAY DEVICE USING THE SAME - Provided are an elliptically polarizing plate that is excellent in contrast in an oblique direction and has a broadband and a wide viewing angle, and an image display device using the elliptically polarizing plate. The elliptically polarizing plate of the present invention includes in order: a polarizer; a protective layer; a first birefringent layer having a refractive index profile of nz>nx=ny; a second birefringent layer that functions as a λ/2 plate; and a third birefringent layer that functions as a λ/4 plate. A ratio Rth | 12-03-2009 |
20100123943 | MULTILAYER REFLECTOR, AUTHENTICATION CARD, BAR CODE LABEL, AUTHENTICATION SYSTEM, AND AUTHENTICATION REGION FORMING SYSTEM - Provided is a multilayer reflector about which a complicated step is not required when the molecular alignment of a retardation film is partially relaxed to form a latent image of authentication information, and about which the latent image is not made visible by the generation of unevenness in the surface. A multilayer reflector | 05-20-2010 |
20100134737 | LIQUID CRYSTAL PANEL, LIQUID CRYSTAL DISPLAY APPARATUS USING THE PANEL, AND METHOD OF PRODUCING A LIQUID CRYSTAL PANEL - Provided are a liquid crystal panel and a liquid crystal display apparatus each of which: contributes to a reduction in thickness; and is excellent in optical characteristics, and a method of producing the liquid crystal panel with extremely high production efficiency. A liquid crystal panel of the present invention has a first polarizer, a first protective layer, a first optical compensation layer, a first negative C plate, a liquid crystal cell, a second negative C plate, a second optical compensation layer, a second protective layer, and a second polarizer in the stated order. The first optical compensation layer is arranged between the first protective layer and the first negative C plate to be in close contact with the first protective layer without using any adhesive. The second optical compensation layer is arranged between the second negative C plate and the second protective layer to be in close contact with the second protective layer without using any adhesive. The first and second optical compensation layers are each a coating layer functioning as a λ/4 plate, and each have a thickness of 0.3 to 3 μm. The first and second negative C plates are each a coating layer, and each have a thickness of 0.5 to 10 μm. | 06-03-2010 |
20100236702 | METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY ELEMENT - A method for manufacturing a liquid crystal display element is provided which simultaneously achieves the object of cutting an optical film without causing degradation in appearance and the object of preventing the film from being broken in a continuous bonding process, and includes: providing a long sheet material including a laminate of an optical film containing a polarizer, a pressure-sensitive adhesive layer, and a carrier film temporarily bonded to the pressure-sensitive adhesive layer; cutting the long sheet material at predetermined intervals, while maintaining the continuity of the carrier film; peeling off the carrier film by a tensile force; and continuously bonding the resulting optical film pieces to liquid crystal panels, respectively, through the pressure-sensitive adhesive layer exposed by the peeling off, while feeding the resulting optical film pieces, wherein the cutting is performed to such a depth as to substantially reach the carrier film, and the carrier film is cut to a depth less than half of the thickness of the carrier film at least both end portions in the width direction of the carrier film. | 09-23-2010 |
20110008552 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE LAYER, PRESSURE-SENSITIVE ADHESIVE MEMBER AND IMAGE DISPLAY, AND METHOD FOR PEELING OFF OPTICAL FILM FROM AN IMAGE DISPLAY AND METHOD FOR REMOVING DISPLAY PANEL FROM IMAGE DISPLAY - The pressure-sensitive adhesive composition of the invention includes a base polymer; and amphiphilic molecule particles that have an aggregate structure of amphiphilic molecules having hydrophilic group and hydrophobic group in the same molecule. The pressure-sensitive adhesive has stable adhesive characteristics and can be reduced in adhesive strength in a desired manner depending on how it is to be used. | 01-13-2011 |
20110083791 | INFORMATION STORING, READOUT AND CALCULATION SYSTEM FOR USE IN A SYSTEM FOR CONTINUOUSLY MANUFACTURING LIQUID-CRYSTAL DISPLAY ELEMENTS, AND METHOD FOR PRODUCING THE SAME - An information storage-readout-calculation system for use in a continuous manufacturing system of liquid-crystal display elements, comprising information storage medium for storing information of defects detected through a preliminary inspection of a continuous polarizing composite film included in a continuous optical film laminate, a roll of a continuous inspected optical film laminate being provided with identification means and a slitting position calculation means for determining defective-polarizing-sheet slitting positions to define defect-containing polarizing sheets having defects and normal-polarizing-sheet slitting positions to define defect-free polarizing sheets by using defect position information read out from the information storage medium based on the identification means, an, a method for manufacturing the information storage-readout-calculation system. | 04-14-2011 |
20110086193 | ROLL OF CONTINUOUS WEB OF OPTICAL FILM LAMINATE WITH PREDEFINED SLIT LINES, AND METHOD AND SYSTEM FOR MANUFACTURING THE SAME - A roll of a continuous web of an optical film laminate with predefined slit lines for use in a continuous manufacturing system by laminating optically functional film sheets to liquid-crystal panels. The optical film laminate with predefined slit lines comprises an optically functional film having an adhesive layer which is subjected to a preliminary inspection, and a carrier film releasably laminated to the adhesive layer. Defect-free normal sheets and defective or defect-containing sheets having predefined length corresponding to the dimension of the liquid-crystal panel are formed on the carrier film by sequentially forming slit lines along the transverse direction with respect to the lengthwise direction of the optical film laminate. | 04-14-2011 |
20110109847 | POLARIZING PLATE AND IMAGE DISPLAY APPARATUS - A polarizing plate according to an embodiment of the present invention includes a polarizer, a UV-shielding layer containing an inorganic fine particle with a bandgap of 3.0 eV or more and a binder resin, and a protective film. | 05-12-2011 |
20110128477 | IMAGE DISPLAY DEVICE - Provided is an image display device including an image display cell and a polarizing plate placed on a viewer side of the image display cell. The first polarizing plate includes a polarizer and a first protective film. The first protective film is placed on a viewer-side principal surface of the polarizer and satisfies following relations: (i) 0 nm≦Re | 06-02-2011 |
20110143056 | OPTICAL FILM MATERIAL ROLL AND METHOD FOR MANUFACTURING IMAGE DISPLAY DEVICE USING THEREOF - Disclosed is a material roll that includes a roll of an optical film having defect information markings printed thereon and is resistant to the formation of a defect by the transfer of a bump/dent deformation at the marking site. The material roll includes a long sheet of an optical film with polarizer wound into roll shape; and marking(s) formed at or in a vicinity of at least one defect site. The marking has an optical density of 1.5 or more, and a thickness of a center part of the marking is 1.5 μm or less. The marking preferably has an optical density per unit thickness of 2.5 μm | 06-16-2011 |
20110194048 | LIQUID CRYSTAL DISPLAY DEVICE - Provided is a liquid crystal display in which occurrence of iridescent unevenness is suppressed, even when a film with high level of mechanical properties, chemical resistance and water-barrier properties is used as a polarizer-protective-film. Also, disclosed is a polarizing plate to be used in the liquid crystal display. The liquid crystal display includes a liquid crystal cell, a light source, a first polarizing plate placed between the liquid crystal cell and the light source, and a second polarizing plate placed on a viewer side of the liquid crystal cell. The first polarizing plate includes a polarizer and a first protective film placed on a light source side principal surface of the first protective film, and the first protective film satisfies following relations: (i) 0 nm≦Re | 08-11-2011 |
20110255154 | POLARIZING PLATE AND IMAGE DISPLAY APPARATUS - A polarizing plate according to an embodiment of the present invention includes a polarizer, a UV-shielding layer containing inorganic fine particles each having a band gap of 3.0 eV or more and a binder resin and a protective film. The UV-shielding layer contains the inorganic fine particles at a content of 40 to 80 vol %, and has a thickness of 400 nm or less. | 10-20-2011 |
20110284147 | ROLL OF CONTINUOUS WEB OF OPTICAL FILM LAMINATE WITH PREDEFINED SLIT LINES, AND METHOD AND SYSTEM FOR MANUFACTURING THE SAME - A roll of a continuous web of an optical film laminate with predefined slit lines for use in a continuous manufacturing system by laminating optically functional film sheets to liquid-crystal panels. The optical film laminate with predefined slit lines comprises an optically functional film having an adhesive layer which is subjected to a preliminary inspection, and a carrier film releasably laminated to the adhesive layer. Defect-free normal sheets and defective or defect-containing sheets having predefined length corresponding to the dimension of the liquid-crystal panel are formed on the carrier film by sequentially forming slit lines along the transverse direction with respect to the lengthwise direction of the optical film laminate. | 11-24-2011 |
20120028067 | CUTTING INFORMATION DETERMINATION METHOD, AND STRIP-SHAPED POLARIZING SHEET MANUFACTURING METHOD THEREWITH, OPTICAL DISPLAY UNIT MANUFACTURING METHOD THEREWITH, STRIP-SHAPED POLARIZING SHEET, AND POLARIZING SHEET MATERIAL - Provided are a cutting information determination method that can use a simpler process to improve yield, and a strip-shaped polarizing sheet manufacturing method using such a method, an optical display unit manufacturing method using such a method, a strip-shaped polarizing sheet, and a polarizing sheet material. A cutting position in the width direction A | 02-02-2012 |
20120031552 | MATERIAL ROLL AND SYSTEM AND METHOD FOR MANUFACTURING OPTICAL DISPLAY DEVICE - Provided are a system and a method for manufacturing an optical display device and a material roll, which can effectively prevent the production of defective optical display devices even in a process including drawing a long sheet material from a material roll and bonding an optical film to an optical display unit, and which is a roll of a laminate of a first base film, a first pressure-sensitive adhesive layer, an optical film, a second pressure-sensitive adhesive layer, and a second base film, which are wound in the roll in this order from the outside, and has a width corresponding to the length of any one side of a rectangular optical display unit, wherein the adhering strength A of the first base film-side interface of the first pressure-sensitive adhesive layer, the adhering strength B of the optical film-side interface of the first pressure-sensitive adhesive layer, the adhering strength C of the optical film-side interface of the second pressure-sensitive adhesive layer, and the adhering strength D of the second base film-side interface of the second pressure-sensitive adhesive layer satisfy the relations A | 02-09-2012 |
20120071057 | SYSTEM AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY ELEMENT - There are provided a system and a method for manufacturing a liquid crystal display element, which make it possible to perform a lamination process in a smaller installation space, and which are provided to perform a process including turning over and horizontally rotating a liquid crystal panel using a panel turning unit, feeding optical functional films from first and second continuous rolls, respectively, using film feeding lines arranged linearly in planar view, feeding the liquid crystal panel using a panel feeding line placed above the film feeding lines in an overlapping manner and shaped linearly in planar view, and bonding each of the optical functional films, which are fed from the first and second rolls, to the liquid crystal panel from below. | 03-22-2012 |
20120073758 | ROLL OF CONTINUOUS WEB OF OPTICAL FILM LAMINATE WITH PREDEFINED SLIT LINES, AND METHOD AND SYSTEM FOR MANUFACTURING THE SAME - A roll of a continuous web of an optical film laminate with predefined slit lines for use in a continuous manufacturing system by laminating optically functional film sheets to liquid-crystal panels. The optical film laminate with predefined slit lines comprises an optically functional film having an adhesive layer which is subjected to a preliminary inspection, and a carrier film releasably laminated to the adhesive layer. Defect-free normal sheets and defective or defect-containing sheets having predefined length corresponding to the dimension of the liquid-crystal panel are formed on the carrier film by sequentially forming slit lines along the transverse direction with respect to the lengthwise direction of the optical film laminate. | 03-29-2012 |
20120097325 | SYSTEM AND METHOD FOR CONTINUOUSLY MANUFACTURING LIQUID CRYSTAL DISPLAY DEVICE - A method for continuously manufacturing a liquid crystal display device, includes a first peeling step that comprises providing a carrier film on which first and second sheet pieces of polarizing films containing first and second pressure-sensitive adhesives, respectively, are formed, and peeling off the first sheet piece from the carrier film by first peeling means; a bonding step that comprises bonding the first sheet piece to a liquid crystal panel with the first pressure-sensitive adhesive interposed therebetween to form a liquid crystal display device; and a removal step that comprises removing the second sheet piece from the carrier film. The removal step includes a falling step comprising peeling off the second sheet piece from the carrier film using second peeling means by inwardly bending the carrier film against the second sheet piece with the second pressure-sensitive adhesive facing upward; and allowing the second sheet piece to fall. | 04-26-2012 |
20120103532 | SYSTEM FOR MANUFACTURING LIQUID CRYSTAL DISPLAY DEVICE - Provided is a liquid crystal display device manufacturing system having high productivity per space for installation of manufacturing equipment and making it possible to increase safety by separation of a feed path and a working path and to reduce equipment cost. The system includes a pair of manufacturing apparatuses | 05-03-2012 |
20120118488 | METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY DEVICE - Provided is a liquid crystal display device manufacturing method that can prevent a liquid crystal panel from warping into a shape concave to the viewer side in the process of manufacturing the liquid crystal panel by bonding optical members to both surfaces of a liquid crystal cell so that a good display state can be achieved. The method includes: performing a first bonding step S | 05-17-2012 |
20120160406 | METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY ELEMENT - A method for manufacturing a liquid crystal display element, includes: providing a long sheet material including a laminate of an optical film containing a polarizer, a pressure-sensitive adhesive layer, and a carrier film temporarily bonded to the pressure-sensitive adhesive layer; cutting the long sheet material at predetermined intervals, while maintaining the continuity of the carrier film; peeling off the carrier film by a tensile force; and continuously bonding the resulting optical film pieces to liquid crystal panels, respectively, through the pressure-sensitive adhesive layer exposed by the peeling off, while feeding the resulting optical film pieces, wherein the cutting is performed to such a depth as to substantially reach the carrier film, and the carrier film is cut to a depth less than half of the thickness of the carrier film at least both end portions in the width direction of the carrier film. | 06-28-2012 |
20120199265 | OPTICAL FILM MATERIAL ROLL AND METHOD FOR MANUFACTURING IMAGE DISPLAY DEVICE USING THEREOF - Disclosed is a material roll that includes a roll of an optical film having defect information markings printed thereon and is resistant to the formation of a defect by the transfer of a bump/dent deformation at the marking site. The material roll includes a long sheet of an optical film with polarizer wound into roll shape; and marking(s) formed at or in a vicinity of at least one defect site. The marking has an optical density of 1.5 or more, and a thickness of a center part of the marking is 1.5 μm or less. The marking preferably has an optical density per unit thickness of 2.5 μm | 08-09-2012 |