Invention Grant
- Patent Title: Retardation film
- Patent Title (中): 延迟膜
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Application No.: US12440819Application Date: 2007-09-11
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Publication No.: US08451540B2Publication Date: 2013-05-28
- Inventor: Kenji Kato , Katsushige Hayashi , Noriyuki Kato , Haruaki Eto , Syoichi Nito
- Applicant: Kenji Kato , Katsushige Hayashi , Noriyuki Kato , Haruaki Eto , Syoichi Nito
- Applicant Address: JP Saitama JP Tokyo
- Assignee: MGC Filsheet Co., Ltd.,Mitsubishi Gas Chemical Company, Inc.
- Current Assignee: MGC Filsheet Co., Ltd.,Mitsubishi Gas Chemical Company, Inc.
- Current Assignee Address: JP Saitama JP Tokyo
- Agency: Ladas & Parry LLP
- Priority: JP2006-251717 20060915
- International Application: PCT/JP2007/068017 WO 20070911
- International Announcement: WO2008/032848 WO 20080320
- Main IPC: G02B5/02
- IPC: G02B5/02 ; G02B5/30
Abstract:
Disclosed is a film suitable for improvement of luminance, contrast and view angle of a liquid crystal display. Specifically disclosed is a retardation film having a thickness of 30-500 μm, a light transmittance of not less than 85%, and an Nz factor of not less than 10.
Public/Granted literature
- US20100033825A1 RETARDATION FILM Public/Granted day:2010-02-11
Information query
