Invention Grant
- Patent Title: Liquid crystal cured layer, production method therefor, optical film, polarizing plate, and display device
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Application No.: US16967412Application Date: 2019-02-13
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Publication No.: US11447700B2Publication Date: 2022-09-20
- Inventor: Masakazu Saito , Yuki Furukawa , Yuta Kanno
- Applicant: ZEON CORPORATION , NISSAN CHEMICAL CORPORATION
- Applicant Address: JP Tokyo; JP Tokyo
- Assignee: ZEON CORPORATION,NISSAN CHEMICAL CORPORATION
- Current Assignee: ZEON CORPORATION,NISSAN CHEMICAL CORPORATION
- Current Assignee Address: JP Tokyo; JP Tokyo
- Agency: Kenja IP Law PC
- Priority: JPJP2018-027656 20180220
- International Application: PCT/JP2019/005145 WO 20190213
- International Announcement: WO2019/163611 WO 20190829
- Main IPC: G02F1/1333
- IPC: G02F1/1333 ; C09K19/04 ; G02B1/04 ; G02B1/08 ; G02B5/30 ; G02F1/1335 ; G02F1/13363 ; G02F1/1337 ; C09K19/42

Abstract:
A liquid crystal cured layer formed of a cured product of a liquid crystal composition, wherein the liquid crystal composition contains a polymerizable liquid crystal compound having a reverse wavelength dispersion property, and a copolymer containing a monomer unit A including a monovalent group containing an aromatic ring and a monomer unit B containing a monovalent aliphatic hydrocarbon group optionally having a substituent, a main chain mesogen of the polymerizable liquid crystal compound in the liquid crystal cured layer is oriented at a tilt angle of 85° to 90° with respect to a layer plane of the liquid crystal cured layer.
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