Nitto-denko Corporation

Nitto Denko Corportation

Satoru Koshio

Tomokazu Yura

Takuya Nakazono

Kazuo Kitada

Fumihito Shimanoe

Kouji Kimura

Takayoshi Yamano

Shouji Shibata

Satoshi Hirata

Akira Tawada

Masahiro Takigawa

Kentarou Takeda

Seiji Kondo

Takeshi Murashige

Kazuya Hada

Kiyotaka Tsutsumi

Minoru Maeda

Yoshinori Ikeda

Tamotsu Oda

Teruaki Osawa

Jun Mishima

A method of manufacturing a glass film using a roll-to-roll process in which a long glass film from a feed roll is wound on a winding roll through a plurality of steps, the plurality of steps comprising: a step of cutting the glass film along a feed direction at a predetermined position in a width direction; and a step of polishing cutting surfaces of glass films into which the glass film is cut.

Method of manufacturing glass film

The present invention provides a manufacturing apparatus and manufacturing method for realizing lamination with high accuracy responding to increase in speed and growth in size in an optical display unit manufacturing apparatus. The present invention is a manufacturing apparatus and manufacturing method in which, in the optical display unit manufacturing apparatus, a holding device which reciprocates between a peeling position and an upstream side predetermined position of the peeling position is deployed, the holding device holds the optical film laminate in a width-wise direction including both sides, and moves for a fixed distance, and at the peeling position, sends a front end of the optical film sheet peeled with the adhesive layer from the carrier film to a downstream side predetermined position of the peeling position to release the optical film laminate when the holding device reaches the lower side predetermined position.

Manufacturing apparatus and manufacturing method of optical display unit

A method and an apparatus for manufacturing an optical display device by sequentially peeling a plurality of optical film sheets continuously supported on a long web of a carrier film and laminating the plurality of optical film sheets to a plurality of panel components are provided. After completing laminating operation of a preceding optical film sheet to a preceding panel component, a rear end of next optical film sheet, supported on a carrier film which in a state where one of opposite surfaces thereof is folded to inside at a tip-end of a peeling member, is read at a predetermined detecting position as positional information, then a leading end of an optical film sheet is positioned at a predetermined laminating position based on the positional information while peeling the optical film sheet from the carrier film.

Method and device for manufacturing optical display device

Disclosed are a method and an apparatus for forming a laminated substrate free from misalignment which would otherwise occur based on the assumption that, when the laminated substrate is formed by; preliminarily producing at least two rolls of laminate webs having different roll widths; and successively laminating at least two film sheets cut out, respectively, from the laminate webs being fed from the rolls, to one surface of a rectangular substrate, the roll width of each of the preliminarily-produced rolls of laminate webs becomes non-uniform.

Method and device for forming laminated substrate

A method for manufacturing an optical display device comprises: sequentially peeling a plurality of optical film sheets continuously supported via an adhesive layer on one of opposite surfaces of a carrier film, together with the adhesive layer from the carrier film under peeling action of the movable peeling member by winding a long web of the carrier film in a state where the other of opposite surfaces thereof being folded to inside at a tip-end of the movable peeling member having the tip-end and passed around the peeling member; and laminating the plurality of optical film sheets to one of opposite surfaces of respective ones of panel components via the adhesive layer under laminating action of the closed lamination rollers.

Method and apparatus for manufacturing optical display device

A method for manufacturing a liquid-crystal display device in which at least an absorptive polarizing film is arranged on a viewing side of a rectangular liquid-crystal display panel and at least the absorptive polarizing film and a reflective polarizing film are arranged on a non-viewing side thereof, the liquid-crystal display panel having a long side and a short side and of VA mode or IPS mode is provided.

Method for manufacturing liquid crystal display device

A method for manufacturing an optical display device comprising: after completing lamination of a preceding optical film sheet to one of opposite surfaces of a preceding panel component at the predetermined laminating position, unwinding the carrier film in a state where another surface thereof folded to inside at a tip-end configuring a head portion of a peeling member and the carrier film is passed around the peeling member, and backwardly feeding a leading end of the optical film sheet supported on the carrier film to a predetermined feeding position provided at upstream of the tip-end of the peeling member.

A method and an apparatus for manufacturing an optical display device by sequentially peeling a plurality of optical film sheets continuously supported on a long web of a carrier film and laminating the plurality of optical film sheets to a plurality of panel components are provided.

An information storage/readout device for use in a system for continuously manufacturing liquid-crystal display elements comprises an information storage medium which stores therein slitting position information created based on the position of a defect detected by an inspection of a continuous polarizing composite film included in a continuous optical film laminate including a continuous polarizing composite film formed with an adhesive layer and a continuous carrier film releasably laminated on the adhesive layer, to indicate defective-polarizing-sheet slitting positions defining a defective or defect-containing polarizing sheet, and normal-polarizing-sheet slitting positions defining a normal or defect-free polarizing sheet, in the continuous inspected optical film laminate, and a roll of the continuous inspected optical film laminate which is provided with an identification indicia. In continuous manufacturing of liquid-crystal display elements, the present invention can dramatically enhance product accuracy and manufacturing speed and drastically improve product yield.

Information storage/readout device for use in continuously manufacturing system for liquid-crystal display elements, and method and system for producing the same

A method for continuously manufacturing an optical display panel includes feeding a carrier filmon which an optical filmis placed with a pressure-sensitive adhesive interposed therebetween, peeling off the optical filmfrom the carrier filmby using a folding-back partto inwardly fold back the carrier filmbeing fed, taking up the carrier filmfrom which the optical filmis peeled off, feeding an optical cell P and bonding the optical film, which is peeled off from the carrier film, to the optical cell P with the pressure-sensitive adhesive interposed therebetween, and reducing a difference between a first tension on the carrier filmlocated upstream of the folding-back partand a second tension on the carrier filmlocated downstream of the folding-back part while reducing one of the first and second tensions before the bonding step.

Method and system for continuously manufacturing optical display panel

An object is to provide a method of cutting a laminate film by a circular cutter having a blade around its peripheral edge portion, including rotating the circular cutter at a blade peripheral speed of Vr by a rotational device in a forward rotational direction relative to the cutting direction, while, at the same time, moving the circular cutter at a moving speed of Vc, thereby cutting the laminate film, wherein the relative cutting speed V calculated by subtracting the blade peripheral speed Vr from the moving speed Vc falls within a range of not less than &#x2212;50 m/min to not more than 30 m/min.

Method of cutting laminate film, cutting apparatus and method of manufacturing optical display device

The invention is a method for continuously manufacturing an inspected liquid crystal display panel, includes: a liquid crystal cell feeding step including feeding a liquid crystal cell having a first substrate and a second substrate; a first polarizing plate providing step including providing a first polarizing plate from a first polarizing plate roll; a first polarizing plate laminating step including laminating the first polarizing plate to the first substrate; a second polarizing plate providing step including providing a second polarizing plate from a second polarizing plate roll; a second polarizing plate laminating step including laminating the second polarizing plate to the second substrate to obtain a liquid crystal display panel after laminating the first polarizing plate to the first substrate; and an inspecting step including optically inspecting the liquid crystal display panel without applying voltage to the liquid crystal panel, wherein the first substrate is less susceptible to electrostatic decay in the liquid crystal cell than the second substrate.

Method for manufacturing liquid crystal display panels

A system for manufacturing an optical display device includes providing a roll of a belt-shaped sheet material including an optical film and a release film, which has score lines previously formed by cutting layers of the material other than the release film. The optical film is bonded to a rectangular optical display unit of the display device. In the bonding steps, a first optical film is divided by the score lines into pieces each having a length corresponding to a long side of the display unit, and a second optical film is divided by the score lines into pieces each having a length corresponding to a short side of the display unit. The first optical film has a first polarizing plate whose longitudinal direction is parallel to its absorption axis, and the second optical film has a second polarizing plate whose longitudinal direction is parallel to its absorption axis.

System and method for manufacturing optical display device, set of material rolls and method for manufacture thereof

A manufacturing system and manufacturing method for an optical display device, which adheres upper and lower optical films to the optical display device using two rolls having optical anisotropies in the same direction, so that the optical anisotropies are orthogonal to each other. The manufacturing system includes a first feeding device for feeding a first optical film after cutting to a predetermined length, and a second feeding device for feeding a second optical film after cutting to a predetermined length. The first feeding device and the second feeding device correspond to the longer side and the shorter side of the optical display unit, so that the optical film having a width corresponding to the shorter side may be cut to a length corresponding to the longer side, whereas the optical film having a width corresponding to the longer side may be cut to a length corresponding to the shorter side.

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.

Growing community of inventors

Ibaraki, Japan

Satoru Koshio