Invention Grant
- Patent Title: Multilayer retardation film and method for producing same
- Patent Title (中): 多层延迟膜及其制造方法
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Application No.: US14765388Application Date: 2014-01-23
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Publication No.: US09535202B2Publication Date: 2017-01-03
- Inventor: Kazuki Takagi , Hung Trong La
- Applicant: ZEON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: ZEON CORPORATION
- Current Assignee: ZEON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2013-019605 20130204
- International Application: PCT/JP2014/051343 WO 20140123
- International Announcement: WO2014/119457 WO 20140807
- Main IPC: G02B5/30
- IPC: G02B5/30 ; G02B1/04 ; B29C55/02 ; B29D11/00 ; B32B7/02 ; B32B27/08 ; B29K69/00

Abstract:
A layered phase difference film including, in the following order: a resin layer A1 formed of a resin A1 having a positive intrinsic birefringence; a resin layer B formed of a resin B having a negative intrinsic birefringence; and a resin layer A2 formed of a resin A2 having a positive intrinsic birefringence, wherein the resin layer A1 and the resin layer B are in direct contact with each other, the resin layer B and the resin layer A2 are in direct contact with each other, the resin layer A1 and the resin layer A2 are negative C-plates, the resin layer B is a positive B-plate, and the layered phase difference film has an Nz coefficient within a range of 0 to 1.
Public/Granted literature
- US20150378079A1 MULTILAYER RETARDATION FILM AND METHOD FOR PRODUCING SAME Public/Granted day:2015-12-31
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