Patent application number | Description | Published |
20090280711 | PRODUCTION MANAGEMENT SYSTEM AND PRODUCTION MANAGEMENT METHOD APPLIED TO OPTICAL DISPLAY DEVICE PRODUCTION SYSTEM - 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. | 11-12-2009 |
20100028606 | OPTICAL FILM CUTTING METHOD AND OPTICAL FILM - 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 μm or less. According to the optical film cutting method of this invention, it is possible to provide an optical film cutting method for cutting an optical film such as a polarizing film by not using a gaussian beam but using a laser beam of which a waveform is shaped into a rectangular waveform, which is capable of maintaining a raised part size as small as possible in a cutting surface of the optical film and preventing generation of bonding defect and optical defect when the optical film is incorporated into various optical panels. | 02-04-2010 |
20100116800 | OPTICAL FILM CUTTING METHOD AND OPTICAL FILM - 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 μm 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. | 05-13-2010 |
20110126988 | MANUFACTURING METHOD AND MANUFACTURING SYSTEM FOR OPTICAL DISPLAY DEVICE - 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. | 06-02-2011 |
20120132369 | METHOD AND SYSTEM FOR MANUFACTURING OPTICAL DISPLAY DEVICE - A system for manufacturing an optical display device includes an optical display unit feeding apparatus with a counting section counting the number of optical display units fed, an optical film feeding apparatus with a roll exchanging section exchanging a roll of a previous category for a roll of a latter category and joining the optical films on each, a bonding apparatus bonding a cut optical film onto a surface of an optical display unit, and a controller storing the number N of optical display units that are bonded correspondingly with the optical films that are present from a joining position to a bonding position of the optical film, and stops the apparatuses when the number of remaining sheets of the optical display units of the previous category prior to bonding becomes substantially equal to the number N at the time of exchanging categories based on information from the counting section. | 05-31-2012 |
20120193034 | MANUFACTURING SYSTEM AND MANUFACTURING METHOD FOR OPTICAL DISPLAY DEVICE - A manufacturing system is provided with a supplying apparatus of a first sheet material supplying after cutting into a predetermined length, and a supplying apparatus of a second sheet material supplying after cutting into a predetermined length, and the supplying apparatus of the first sheet material and the supplying apparatus of the second sheet material are structured such that one supplying apparatus cuts a long sheet material having a width corresponding to a short side into a length corresponding to a long side, and the other supplying apparatus cuts a long sheet material having a width corresponding to the long side into a length corresponding to the short side, in correspondence to the long side and the short side of the optical display unit. | 08-02-2012 |
20130126080 | OPTICAL FUNCTIONAL FILM, AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY DEVICE USING SAME - Provided is an optical functional film in which air bubbles can be effectively prevented from forming during lamination, and preferably in which a carrier film does not tear readily. Also provided is a method for manufacturing a liquid crystal display device using this optical functional film. A belt-shaped optical functional film is used in order to cut away the optical functional film at predetermined intervals from the belt-shaped optical functional film to which a carrier film is bonded, with the carrier film remaining uncut; to subsequently turn over the carrier film by an edge-shaped member and peel away the optical functional film; and to laminate the exposed surface of the optical functional film to a sheet member while the optical functional film is being peeled away, wherein the optical functional film is characterized in that the flexural rigidity of the carrier film per unit length in the longitudinal direction is from 5.0×10 | 05-23-2013 |
20130292058 | SYSTEM FOR MANUFACTURING OPTICAL DISPLAY DEVICE - 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( | 11-07-2013 |
20140290826 | METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY PANELS - A method for manufacturing an LCD panel comprises: (a) continuously feeding an LC cell comprising first and second substrates, the first substrate being relatively less susceptible to electrostatic decay than the second substrate, (b) laminating a first polarizing plate to the first substrate of the LC cell while avoiding direct contact between the first laminating member and the first substrate; (c) laminating a second polarizing plate to the second substrate with the first substrate being in contact with a second laminating member through the first polarizing plate laminated to the first substrate in the step (b) while avoiding direct contact between the second laminating member and the first substrate, thereby obtaining an LCD panel, and (d) conducting an inspection of the LCD panel without applying voltage, wherein steps (a), (b), (c) and (d) are performed sequentially in a single continuous feed line. | 10-02-2014 |
20140360992 | IMPACT-ABSORBING PRESSURE-SENSITIVE ADHESIVE SHEET AND METHOD OF PRODUCING THE SAME - 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. | 12-11-2014 |