Invention Grant
US09023168B2 Method and apparatus for continuously producing optical panel assemblies
有权
用于连续生产光学面板组件的方法和设备
- Patent Title: Method and apparatus for continuously producing optical panel assemblies
- Patent Title (中): 用于连续生产光学面板组件的方法和设备
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Application No.: US13225180Application Date: 2011-09-02
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Publication No.: US09023168B2Publication Date: 2015-05-05
- Inventor: Takeharu Kitagawa , Takuya Nakazono , Shusaku Goto , Minoru Miyatake , Tomohiro Mori , Takashi Kamijo
- Applicant: Takeharu Kitagawa , Takuya Nakazono , Shusaku Goto , Minoru Miyatake , Tomohiro Mori , Takashi Kamijo
- Applicant Address: JP Ibaraki-Shi, Osaka
- Assignee: Nitto Denko Corporation
- Current Assignee: Nitto Denko Corporation
- Current Assignee Address: JP Ibaraki-Shi, Osaka
- Agency: Lowe Hauptman & Ham, LLP
- Priority: JP2010-197413 20100903; JP2011-108632 20110513
- Main IPC: B29C65/52
- IPC: B29C65/52 ; B29C65/54 ; B32B37/12 ; B32B37/26 ; B32B38/04 ; B32B43/00 ; B32B37/20 ; B29C55/02 ; B29C55/06 ; B32B37/00 ; G02B5/30 ; B29K29/00 ; B29K67/00 ; B32B37/18 ; B32B38/00 ; B32B37/24
Abstract:
A method of producing an optical panel assembly including the polarizing film in a continuous manner by laminating a polarizing film to a surface of a rectangular-shaped optical panel, is disclosed. The polarizing film is formed by performing a step of subjecting a laminate including a continuous web of a thermoplastic resin substrate and a PVA type resin layer formed on the substrate, 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 PVA type resin layer to 10 μm or less, and a step of causing a dichroic material to be absorbed in the PVA type resin layer.
Public/Granted literature
- US20120055623A1 METHOD AND APPARATUS FOR CONTINUOUSLY PRODUCING OPTICAL PANEL ASSEMBLIES Public/Granted day:2012-03-08
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