发明名称 |
Method of producing roll of optical film laminate with polarizing film |
摘要 |
A method of producing a roll of an optical film laminate including a polarizing film having a thickness of 10μm or less is described. The method includes providing a roll of a separator film-attached optical film laminate formed by subjecting a laminate comprising a continuous web of a thermoplastic resin substrate and a polyvinyl alcohol type resin layer to a 2-stage stretching consisting of a preliminary in-air stretching and an in-boric-acid-solution stretching, to reduce a thickness of the polyvinyl alcohol type resin layer to 10μm or less. The method further includes causing a dichroic material to be absorbed in the polyvinyl alcohol type resin layer. The method further includes detecting a defect existing in the optical film laminate and the adhesive layer and upon detection of a defect, recording a position of the defect. The method further includes winding into a roll a separator film-attached optical film laminate. |
申请公布号 |
US8721816(B2) |
申请公布日期 |
2014.05.13 |
申请号 |
US201113223938 |
申请日期 |
2011.09.01 |
申请人 |
KITAGAWA TAKEHARU;NAKAZONO TAKUYA;GOTO SHUSAKU;MIYATAKE MINORU;MORI TOMOHIRO;KAMIJO TAKASHI;NITTO DENKO CORPORATION |
发明人 |
KITAGAWA TAKEHARU;NAKAZONO TAKUYA;GOTO SHUSAKU;MIYATAKE MINORU;MORI TOMOHIRO;KAMIJO TAKASHI |
分类号 |
B32B41/00 |
主分类号 |
B32B41/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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