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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9256015 B1

PDFFull Text
Date of Patent:
Feb. 09, 2016

Filed:

Aug. 07, 2013

Method and system for manufacturing optical display panel

Applicant:

Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;

Inventors:

Seiji Umemoto, Ibaraki, JP;

Kouji Kimura, Ibaraki, JP;

Takuya Nakazono, Ibaraki, JP;

Kazuya Hada, Ibaraki, JP;

Assignee:

NITTO DENKO CORPORATION, Ibaraki-shi, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Sing P Chan

Int. Cl.
CPC ...
B29C 65/50 (2006.01); B32B 37/26 (2006.01); B32B 38/10 (2006.01); B32B 43/00 (2006.01); G02B 5/30 (2006.01); H01L 51/56 (2006.01); G02F 1/13 (2006.01); H01L 51/00 (2006.01); B32B 37/18 (2006.01); B32B 38/18 (2006.01); B65H 39/16 (2006.01); G02F 1/1335 (2006.01); B29C 65/48 (2006.01); B29C 65/78 (2006.01); B29C 65/00 (2006.01); B29L 31/34 (2006.01);
U.S. Cl.
CPC ...
G02B 5/3025 (2013.01); B32B 37/18 (2013.01); B32B 38/18 (2013.01); B65H 39/16 (2013.01); G02F 1/1303 (2013.01); H01L 51/003 (2013.01); H01L 51/56 (2013.01); B29C 65/4825 (2013.01); B29C 65/5057 (2013.01); B29C 65/7861 (2013.01); B29C 65/7891 (2013.01); B29C 66/1122 (2013.01); B29C 66/45 (2013.01); B29C 66/71 (2013.01); B29C 66/7338 (2013.01); B29C 66/83221 (2013.01); B29C 66/83413 (2013.01); B29C 2793/0081 (2013.01); B29L 2031/3475 (2013.01); B32B 2457/202 (2013.01); B65H 2301/5162 (2013.01); B65H 2301/51122 (2013.01); B65H 2515/842 (2013.01); B65H 2801/61 (2013.01); G02F 1/133528 (2013.01); G02F 2202/28 (2013.01); Y10T 156/1705 (2015.01);
Abstract

Manufacturing method is for manufacturing an optical display panel including an optical cell and a pressure-sensitive adhesive layer-carrying optical film provided thereon with the pressure-sensitive adhesive layer interposed therebetween, which includes the steps of unwinding a multilayer optical film from a roll, feeding the multilayer optical film, feeding an optical cell, peeling off the optical film from a carrier film, and bonding the optical film to one side of the optical cell with a pressure-sensitive adhesive interposed therebetween, wherein the longitudinal length (L) of the carrier film between a position at which the multilayer optical film begins to be unwound in the film feeding step and a position at which peeling is started in the peeling step is 15 times or more the width (W) of the carrier film.

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