Abstract: A roll of optical-film laminate that increases accuracy, speed and yield in the production of liquid-crystal display elements. The roll of optical film laminate is for use in an apparatus for continuously producing liquid-crystal display elements. The optical film comprises a polarizing composite film of a laminate having a continuous web of polarizer and a protective film superposed on one side of the continuous polarizer, an adhesive layer disposed on one side of the laminate; and a carrier film superposed on the adhesive layer of the polarizing film in a peelable state. Defective and normal regions in the polarizing film are determined According to these determined regions, coded information that specifies positions of slit lines to be formed in the optical-film web are recorded on the continuous web.

Abstract: Provided are a manufacturing system and a manufacturing method for an optical display device, which are enabled to adhere upper and lower optical films to an optical display device by using two rolls having optical anisotropies such as absorption axes in the same direction, so that the optical anisotropies may be orthogonal to each other. In the manufacturing system for the optical display device, the optical films are adhered to an optical display unit (W). The manufacturing system comprises a feeding device (M2) for a first optical film (F11) to be fed after cut to a predetermined length, and a feeding device (M5) for a second optical film (F21) to be fed after cut to a predetermined length.

Abstract: It is provided that a method and a system for manufacturing an optical display device, which make it possible to bond an optical member and an optical display unit together with a certain degree of cleanliness maintained. The method for manufacturing an optical display device including an optical display unit (W) and an optical member (11, 12) bonded to the optical display unit (W), which includes a bonding step for bonding the optical member (11, 12) to the optical display unit (W) in an environment with an airflow.

Abstract: Provided is a system for manufacturing an optical display unit and a feed mechanism, which can well prevent an optical film and a pressure-sensitive adhesive layer from being peeled from a release film. A pressure-sensitive adhesive type sheet material, wherein the optical film and the pressure-sensitive adhesive layer (film main body (F)) are cut without cutting a release film (F12, F22) which is laminated to the optical film with the pressure-sensitive adhesive layer in between, is fed along a feed path (12A, 22A). A press member (200) is arranged at a position opposed to a bent portion or a curved portion in the feed path (12A, 22A). Since the film main body (F) which is peeled from the release film (F12, F22) can be pressed to the release film (F12, F22) by the press member (200), the film main body (F) can be well prevented from being peeled from the release film (F12, F22).

Abstract: A system for manufacturing an optical display device having an optical display unit and an optical film bonded thereto and including a polarizing plate, the system including: a first cutting and bonding unit which performs a process including unwinding a long sheet material from a first roll of the long sheet material, wherein the long sheet material includes a first optical film, a pressure-sensitive adhesive layer and a release film laminated in this order; a second cutting and bonding unit which performs a process including unwinding a long sheet material from a second roll of the long sheet material, wherein the long sheet material includes a second optical film, a pressure-sensitive adhesive layer and a release film laminated in this order; and a turning unit which turns the optical display unit to the direction of bonding in the other cutting and bonding unit.

Abstract: The invention is to provide a method for manufacturing a joined sheet product. The method comprising a first joining step including opposing a transverse end face of a first sheet product(1) to a transverse end face of a second sheet product(2) and joining release films of the first and second sheet products with a first joining member(30); a removing step including removing a portion of an intended member including at least a surface protecting member so as to leave at least the release film and a pressure-sensitive adhesive provided on the release film among the constituent members of both or any one of the first and second sheet products(1, 2), wherein the portion has a predetermined length from the transverse end face of the intended member; and a second joining step including providing a second joining member(40) on at least an exposed portion(40b) resulting from the removal of the intended member to join the surface protecting member sides of the first and second sheet products(1, 2).

Abstract: The invention is to provide a process for production of a connected sheet product, which makes it possible to connect opposed end faces of two or more sheet products. A process for production of a connected sheet product including sheet products that are connected to one another and each have at least an optical member and a release film provided on one side of the optical member with a pressure-sensitive adhesive interposed therebetween, comprising: opposing a transverse end face of a first sheet product to a transverse end face of a second sheet product; connecting release films of the first and second sheet products with a connecting member (30a); and connecting surface members of the first and second sheet products with a connecting member (30b) on the opposite side from the release films.

Abstract: The invention is directed to a method for manufacturing an optical display device comprising an optical film including a polarizing plate and a rectangular optical display unit having a surface to which the optical film is bonded, the method comprising the steps of: preparing a material roll which is a roll of a long sheet material obtained by lengthwise slitting a long material comprising an optical film into a width corresponding to a short or long side of the optical display unit, wherein the optical film includes a polarizing plate having a longitudinal direction parallel to its absorption axis; and unwinding the long sheet material from the material roll, cutting at least the optical film of the long sheet material to form an optical film having a length corresponding to a long or short side of the optical display unit, and then bonding the optical film to a surface of the optical display unit.

Abstract: The invention is directed to a method for producing a material roll for use in a process including unwinding a long sheet material from a roll of the long sheet material, wherein the long sheet material includes an optical film, a pressure-sensitive adhesive layer and a release film laminated in this order, and the optical film includes a polarizing plate, cutting at least the optical film to form an optical film having a specific length, and then bonding the optical film to a surface of a rectangular optical display unit, while feeding the optical film, the method comprising the steps of: lengthwise slitting a long material having a longitudinal direction parallel to an absorption axis of the polarizing plate, so that a long sheet material having a width corresponding to a short or long side of the optical display unit is obtained; and winding the long sheet material into a roll.

Abstract: Provided are a manufacturing system and a manufacturing method for an optical display device, which are enabled to adhere upper and lower optical films to an optical display device by using two rolls having optical anisotropies such as absorption axes in the same direction, so that the optical anisotropies may be orthogonal to each other. In the manufacturing system for the optical display device, the optical films are adhered to an optical display unit (W). The manufacturing system comprises a feeding device (M2) for a first optical film (F11) to be fed after cut to a predetermined length, and a feeding device (M5) for a second optical film (F21) to be fed after cut to a predetermined length.

Abstract: This invention relates to an optical film cutting method which includes cutting an optical film by irradiating the optical film with a laser beam under conditions that an energy per unit length is 0.12 to 0.167 J/mm and that a continuous irradiation time is 0.1 msec or less; as well as to an optical film that is cut by the cutting method and has a size of a raised part generated on a cutting surface thereof of 30 ?m or less. According to the optical film cutting method of this invention, it is possible to maintain the raised part size on the optical film cutting surface as small as possible even in the case where the laser beam has characteristics of a gaussian beam, thereby enabling prevention of bonding defect and optical defect when the optical film is incorporated into various optical panels.

Abstract: This invention relates to an optical film cutting method, which includes: a laser beam generation step of performing a waveform shaping of a laser beam to generate a laser beam having a rectangular waveform, and a cutting step of irradiating an optical film with the laser beam obtained by the laser beam generation step and having a rectangular waveform to thereby cut the optical film; as well as to an optical film that is cut by the cutting method and having a size of a raised part generated on a cutting surface thereof of 30 ?m or less.

Abstract: The invention provides a production management system and a production management method which are applied to an optical display device production system which can more precisely carry out a production management. A memory stores a panel information allocated per an optical display unit, and a roll information including a positional information of optical films in a material roll before the optical films bonded to the optical display unit are cut so as to coordinate. A position in the material roll before the optical films bonded to the optical display unit are cut is specified based on the panel information corresponding to the optical display unit of the optical display device determined by an inspecting apparatus that a defect exists, and the roll information coordinated to the panel information. If it is possible to recognize what position in what material roll the defect exists, as mentioned above, it is possible to carry out a production management more precisely.

Abstract: There is provided a set of material rolls including two rolls that can be used simply by cutting each of them into a predetermined length and then can be bonded with high axis precision to an optical display unit in such a manner that their absorption axes can be orthogonal to each other, and is preferably less likely to produce defects from contamination of the system. There are also provided a method for production of the set of material rolls and a method for manufacturing an optical display device with the set of material rolls.

Abstract: The invention provides a method for manufacturing an optical display device including an optical display unit and an optical film that includes a polarizing plate and is bonded to the optical display unit.

Abstract: [Objects] To make it possible to carry out automatically and accurately a laminating operation of an optical element to a sheet-shaped body. [Means for Accomplishing the Objects] A strip-shaped polarizing film has a protective film strip conformably adhered to one surface thereof and a releasable liner conformably adhered to the other surface thereof and delivered from a film delivering station 1. After an appearance inspection, a lamination of the protective film strip and the polarizing film strip F is half-cut using a laser unit 11 to form an array of laminations each consisting of a protective film and a polarizing film F, with the releasable liner being left intact. Then, the polarizing films F are fed to a peeling mechanism 4. The peeling mechanism 4 feeds a forwardmost one the polarizing films F to a laminating mechanism 5 while peeling off the releasable liner therefrom by a knife-edged member.

Abstract: An impact-absorbing pressure-sensitive adhesive sheet according to an embodiment of the present invention includes an impact-absorbing pressure-sensitive adhesive layer including an impact-absorbing layer. A side surface of the impact-absorbing pressure-sensitive adhesive layer includes a tapered surface; and the tapered surface has a taper angle of 65° or more.

Abstract: According to the invention, the optical film is processed into circular shape as stated above. Thus, optical members with high versatility can be produced without being affected by the optical film-specific optical axis, and optical members that allows easy inventory control can be provided with no reduction in production efficiency. And a method of processing a long size optical film into a circular shape, subsequently processing the optical film processed into the circular shape into an arbitrary shape, also allows a fine tuning of its optical axis even after it is produced from the long size optical film, therefore, optical members with a high degree of flexibility in design and with high versatility can be provided.

Abstract: The laminate-cutting method according to the present invention is a method for cutting an optical film wherein layers are laminated through a pressure-sensitive adhesive agent with a cutting edge, wherein the cutting of the laminate with the cutting edge is performed in the state that compressive stress applied to the optical film is decreased when the laminate is cut with the cutting edge. This makes it possible to provide a laminate-cutting method, a cutting device and a laminate-cutting pedestal wherein the generation of the adhesion of paste to a cutting edge, the blocking, cracking, chipping of cut faces, and others is prevented.

Abstract: A continuous band-shaped film is guided to a predetermined transport path by a guide roller while separating a protective film, and a single polarizer is supplied to a space between the guide roller and a liftable joining roller disposed above the guide roller so as to face the guide roller while separating a separator. In a state where the joining roller is lifted to create the space between the rollers, the polarizer is supplied to the space between the rollers. When the tip end of the polarizer reaches a predetermined position in the created space between the upper and lower rollers, the joining roller is lowered and the polarizer supplied synchronously with transportation of the film is pressed against the film and joined.