METHOD OF DETERMINING CUTTING INFORMATION, METHOD OF MANUFACTURING STRIP-SHAPED POLARIZING SHEET USING SAME, METHOD OF MANUFACTURING OPTICAL DISPLAY UNIT, STRIP-SHAPED POLARIZING SHEET, AND ORIGINAL POLARIZING SHEET

Title:

Document Type and Number:

WIPO Patent Application WO/2011/105174

Kind Code:

A1

Abstract:

Disclosed are a method of determining cutting information, a method of manufacturing strip-shaped polarizing sheets using the same, a method of manufacturing an optical display unit, a strip-shaped polarizing sheet, and an original polarizing sheet capable of improving the yield with simpler processes. Cutting positions in the width direction (A2) of an original polarizing sheet (MP) when the original polarizing sheet (MP) is cut along the longitudinal direction (A1) thereof are determined on the basis of the number of defects counted at a plurality of points in the width direction (A2). With this, the cutting positions can be determined such that areas having a large number of defects are not included in the cutting width, resulting in higher yields. In addition, the cutting positions can be determined using simple processes such as counting the number of defects at a plurality of points in the width direction (A2).

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Inventors:

IZAKI AKINORI (JP)
SUGIMOTO YUU (JP)
UMEMOTO SEIJI (JP)

Application Number:

PCT/JP2011/051884

Publication Date:

September 01, 2011

Filing Date:

January 31, 2011

Export Citation:

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Assignee:

NITTO DENKO CORP (JP)
IZAKI AKINORI (JP)
SUGIMOTO YUU (JP)
UMEMOTO SEIJI (JP)

International Classes:

G02B5/30

Foreign References:

JP2008116437A	2008-05-22
JP2005114624A	2005-04-28
JP2009276750A	2009-11-26
JP2003255132A	2003-09-10
JP2007140046A	2007-06-07
JP2008116437A	2008-05-22

Other References: