Nitto-denko Corporation

Seiji Kondou

Kazuki Tsuchimoto

Tomoaki Masuda

Satoshi Hirata

Seiji Umemoto

Takuya Nakazono

Kazuya Hada

Akihiro Nishida

Makoto Komatsubara

Mie Oota

Ryuuichi Inoue

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.

Method for manufacturing a liquid crystal display including a liquid crystal display panel turning operation

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.

System and method for bonding optical film to a liquid crystal display panel

The method of cleaning a coated sheet according to the present invention is characterized in that dry wind is brown along the traveling direction of a film onto the surface of a coating layer wherein the solid content and the viscosity of the coating solution are within specified ranges. By this method, the thickness precision of the coating film can be improved in its large area, and the evenness of its in-plane optically functional property can be made even therein. The speed of the dry wind, the temperature of the wind, and the thickness of the dried coating film are preferably within specified ranges. In particular, the coated sheet is very useful as an optical material having good properties in an optically functional layer which is frequently used as a large-area coated sheet, an optical device having such an optically functional layer, an optically compensating layer, or an optically compensating plate. The coated sheet is particularly effective for an image display on which they are mounted.

Process for producing coated sheet, optically functional layer, optically compensating plate, optical device and image display

A method for manufacturing a coated sheet that forms a coated layer having a uniform film thickness by a coating liquid even when a substrate has a large area. A method for manufacturing a coated sheet to form a coated layer by a process including a process () for coating a coating liquid including a resin material and a solvent on a substrate, and a drying process () for drying a coated liquid, wherein a drying speed of a coated liquid in the drying process () is set 0.3 [g/m&#xb7;s] or less.

Method for manufacturing coated sheet, optical functional layer, optical element, and image display device

A method for manufacturing a coated sheet that may form a coated layer having a uniform film thickness by a coating liquid even when a substrate has a large area is provided. A method for manufacturing a coated sheet to form a coated layer by a process including a process () for coating a coating liquid including a resin material and a solvent on a substrate, and a drying process () for drying a coated liquid, wherein a drying is performed under drying wind flow having an average wind speed of 10 m/s or less until a viscosity of the coated liquid in the drying process () reaches at least 50 [mPa&#xb7;s] at drying temperatures.

A method for manufacturing a coated sheet that may form a coated layer having a uniform film thickness by a coating liquid even when a substrate has a large area. A method for manufacturing a coated sheet to form a coated layer by a process including a process (1) for coating a coating liquid including a resin material and a solvent on a substrate, and a drying process (2) for drying a coated liquid, wherein a value L obtained in drying process (2) satisfies a following relationship; (where: T: total period of drying process [sec]; &#x3c3;: surface tension of coated liquid [mN/m]; h: thickness of coated liquid [m]; and &#x3b7;: viscosity of coated liquid [mPa&#xb7;sec]).

The present invention provides a polarizing film having a high polarization degree and high transmittance, a process for producing the polarizing film, and a polarizing plate using the polarizing film, and an optical member. In the process for producing the polarizing film, a polyvinyl alcohol-based film is dry-stretched uniaxially, relaxed in an aqueous solution containing iodine or a dichroic dyestuff, and further stretched in an aqueous solution containing a PVA crosslinking agent. It is preferable that the polyvinyl alcohol-based film has a dry-stretch ratio of at least 2, the film after relaxation has a stretch ratio of at least 1.02, and the total stretch ratio is at most 6.5. It is also preferable that the relaxation rate is at most 10% of the dry-stretch ratio.

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Ibaraki, Japan

Seiji Kondou