Invention Grant
- Patent Title: Liquid crystal display polarizing plate, method for producing liquid crystal display polarizing plate, and liquid crystal display
- Patent Title (中): 液晶显示偏振片,液晶显示偏振板的制造方法以及液晶显示器
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Application No.: US12667723Application Date: 2008-07-10
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Publication No.: US08305524B2Publication Date: 2012-11-06
- Inventor: Yusuke Hiruma , Shoji Takeshige , Keiji Kashima
- Applicant: Yusuke Hiruma , Shoji Takeshige , Keiji Kashima
- Applicant Address: JP Tokyo-to
- Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee Address: JP Tokyo-to
- Agency: Ladas & Parry LLP
- Priority: JP2007-182206 20070711
- International Application: PCT/JP2008/062472 WO 20080710
- International Announcement: WO2009/008472 WO 20090115
- Main IPC: G02F1/1335
- IPC: G02F1/1335

Abstract:
A liquid crystal display polarizing plate that can reliably exhibit optical properties and be bonded to a liquid crystal cell without causing degradation of the optical properties. The liquid crystal display polarizing plate includes: a retardation film which has a substrate including a cellulose derivative and a retardation layer formed directly on the substrate and containing the cellulose derivative and a rod-like compound having refractive index anisotropy; a polarizer bonded to the retardation layer of the retardation film and including polyvinyl alcohol; and a polarizing plate protection film bonded to the polarizer.
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