SYSTEM AND METHOD FOR MANUFACTURING OPTICAL DISPLAY DEVICE, SET OF MATERIAL ROLLS AND METHOD FOR MANUFACTURE THEREOF

• Main Authors: KOSHIO SATORU, YURA TOMOKAZU, KITADA KAZUO, NAKAZONO TAKUYA
• Format: Patent
• Language: English
• Published: 05.05.2011
• Subjects: ADHESIVES; CHEMISTRY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DYES; FREQUENCY-CHANGING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PAINTS; PERFORMING OPERATIONS; PHYSICS; POLISHES; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

There are provided a system and a method for manufacturing an optical display device, in which optical films fed from two rolls which are the same in the direction of optical anisotropy, such as the direction of absorption axis, can be bonded to one and the other surfaces of an optical display unit so that the optical anisotropy of the one can be orthogonal to that of the other, and a set of material rolls and a method for manufacture thereof. A first optical film F11 with a width corresponding to the short side of an optical display unit W has score lines that are previously formed so that the first optical film F11 can be divided by the score lines into pieces each having a length corresponding to the long side of the optical display unit W. A second optical film F21 with a width corresponding to the long side of the optical display unit W has score lines that are previously formed so that the second optical film F21 can be divided by the score lines into pieces each having a length corresponding to the short side of the optical display unit W. A first bonding apparatus 18 bonds a divided piece of the first optical film F11 with a length corresponding to the long side of the optical display unit W to one surface of the optical display unit W. A second bonding apparatus 28 bonds a divided piece of the second optical film F21 with a length corresponding to the short side of the optical display unit W to the other surface of the optical display unit W.