Patent application number | Description | Published |
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 |
20090238962 | METHOD OF PRODUCING OPTICAL FILM - In a method of producing an optical film including: a rubbing treatment step of rubbing a surface of a long plastic film F by a rubbing roll | 09-24-2009 |
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 |
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 |
20120071058 | SYSTEM AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY ELEMENT - A system and a method for manufacturing a liquid crystal display element through a reduced number of steps are provided, in which a liquid crystal panel is turned over, by means of a panel turning mechanism, about an axis not parallel to any of the long and short sides of the liquid crystal panel so that the positional relationship between the long and short sides of the liquid crystal panel can be reversed, after one of sheet pieces of optical functional films is bonded to the liquid crystal panel and before another of the sheet pieces is bonded thereto, which can achieve the same effect by a single operation as in the case where turning over the liquid crystal panel and rotating it are performed independently. | 03-22-2012 |
20120073742 | SYSTEM AND METHOD FOR CONTINUOUSLY MANUFACTURING LIQUID CRYSTAL DISPLAY DEVICE - A system and a method for continuously manufacturing a liquid crystal display device, which can suppress the occurrence of stripe defects, are provided, and the system includes carrier film feeding means; peeling means for peeling off a sheet piece of a polarizing film and a pressure-sensitive adhesive from a carrier film; take-up means for taking up the carrier film; bonding means for bonding the sheet piece to a liquid crystal panel with the pressure-sensitive adhesive interposed therebetween to form a liquid crystal display device; and speed control means for controlling the take-up means and the bonding means so that the carrier film can be folded back while it is allowed to protrude from the front end of the peeling means toward the bonding means at least at a peeling-off end time when peeling off the sheet piece from the carrier film is completed. | 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 |
20120125531 | SYSTEM AND METHOD FOR CONTINUOUSLY MANUFACTURING LIQUID CRYSTAL DISPLAY DEVICE - A system for manufacturing a liquid crystal display device, includes peeling means that peels off a sheet piece of the polarizing film from a carrier film; take-up means that takes up the carrier film; bonding means that bonds the sheet piece to a panel; and velocity control means for controlling a feed velocity of the take-up means and a feed velocity of the bonding means in such a manner that: Vh(t)>Vs(t) during a period from the start of the process of bonding the sheet piece to the end of the bonding and that slack formed in the sheet piece being subjected to the bonding is eliminated between a front end of the peeling means and a position in which the bonding is performed by the bonding means; and that during a period from the start of the bonding process to the end of the bonding, L>Ls. | 05-24-2012 |
20120180947 | METHOD FOR CONTINUOUSLY MANUFACTURING LIQUID CRYSTAL DISPLAY DEVICE - The method for continuously manufacturing a liquid crystal display device, includes:
| 07-19-2012 |