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1. (WO2018198434) LIQUID CRYSTAL ALIGNMENT FILM AND METHOD OF MANUFACTURING SAME

Pub. No.:    WO/2018/198434    International Application No.:    PCT/JP2017/046040
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Fri Dec 22 00:59:59 CET 2017
IPC: G02B 5/30
B32B 27/30
C08F 220/12
C08J 7/04
G02F 1/13
G02F 1/13363
Applicants: NITTO DENKO CORPORATION
日東電工株式会社
Inventors: SUZUKI, Mitsuru
鈴木 暢
IIDA, Toshiyuki
飯田 敏行
Title: LIQUID CRYSTAL ALIGNMENT FILM AND METHOD OF MANUFACTURING SAME
Abstract:
This liquid crystal alignment film contains a side chain-type thermotropic liquid crystal polymer and a polymer of a thermotropic liquid crystal compound. The side chain-type thermotropic liquid crystal polymer has a monomer unit containing a liquid crystalline fragment side chain, and a monomer unit containing a non-liquid crystalline fragment side chain. The liquid crystal alignment film satisfies nx > nz > ny, where nx is a refractive index of the in-plane slow axis direction, ny is a refractive index of the in-plane fast axis direction, and nz is a refractive index of the thickness direction. The NZ coefficient, which is expressed as NZ = (nx – nz)/(nx – ny), is preferably 0.2-0.8.