Title:
偏光素子並びにそれを用いた偏光板及び表示装置
Document Type and Number:
Japanese Patent JP7246435
Kind Code:
B2
Abstract:
Provided is a polarizer element which has improved optical characteristics and durability. The polarizer element contains, for example, a substrate and an azo compound which has a free acid form represented by formula (1-1) (wherein Ar11 represents a phenyl or naphthyl group having a substituent, Rr11-Rr16 each represents a hydrogen atom, a lower (1-4C) alkyl group, lower alkoxy or lower sulfoalkoxy group, Xr11 represents an amino, benzoyl, phenylamino, benzoylamino, phenylazo or naphthotriazole group which may have a specific substituent, and m1 and n1 each represent 0 or 1, and when m1 and n1 are 1, Rr15 and Rr16 each represents a hydrogen atom, a lower alkyl or lower sulfoalkoxy group) and formula (1-2) (wherein Ab11 represents a phenyl or naphthyl group having a substituent, Rb11-Rb15 each represents a hydrogen atom, a lower alkyl or lower sulfoalkoxy group, Xb11 represents an amino, phenylazo, benzoyl or naphthotriazole group which may have a substituent).
Inventors:
Noriaki Mochizuki
Application Number:
JP2021096242A
Publication Date:
March 27, 2023
Filing Date:
June 09, 2021
Export Citation:
Assignee:
NIPPON KAYAKU KABUSHIKI KAISHA
International Classes:
G02B5/30; C09B31/072; C09B31/20; C09B31/30; C09B45/28; C09B56/04
Domestic Patent References:
| JP2001033627A | ||||
| JP11218611A | ||||
| JP2003313451A | ||||
| JP8291259A |
Foreign References:
| WO2012108169A1 | ||||
| WO2007138980A1 | ||||
| WO2014162633A1 |
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