Title:
OPTICALLY ANISOTROPIC FILM, CIRCULARLY POLARIZING PLATE AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/054084
Kind Code:
A1
Abstract:
The present invention provides: an optically anisotropic film which exhibits excellent reverse wavelength dispersibility; a circularly polarizing plate; and a display device. An optically anisotropic film according to the present invention contains a non-colorable optically anisotropic compound A, a non-colorable optically anisotropic compound B and a dichroic substance C; this optically anisotropic film has a maximum absorption wavelength within the wavelength range from 700 nm to 1,600 nm; the wavelength dispersibility DA of the optically anisotropic compound A, the wavelength dispersibility being represented by formula (A), and the wavelength dispersibility DB of the optically anisotropic compound B, the wavelength dispersibility being represented by formula (B), satisfy a specific relational expression; and the direction in which the absorbance is maximum at the maximum absorption wavelength of the optically anisotropic compound A within the wavelength range from 230 nm to 400 nm, the direction in which the absorbance is maximum at the maximum absorption wavelength of the optically anisotropic compound B within the wavelength range from 230 nm to 400 nm, and the direction in which the absorbance is maximum at the maximum absorption wavelength within the wavelength range from 700 nm to 1,600 nm satisfy a specific relational expression.
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Inventors:
MORISHIMA SHINICHI (JP)
HIRAI YUKI (JP)
SASAKI KOUITSU (JP)
NOJIRI MAYUMI (JP)
HIMENO RYOJI (JP)
MURAMATSU AYAKO (JP)
HIRAI YUKI (JP)
SASAKI KOUITSU (JP)
NOJIRI MAYUMI (JP)
HIMENO RYOJI (JP)
MURAMATSU AYAKO (JP)
Application Number:
PCT/JP2022/035082
Publication Date:
April 06, 2023
Filing Date:
September 21, 2022
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B5/30; G02F1/1335; G02F1/13363; G09F9/00; G09F9/30; H05B33/02
Domestic Patent References:
| WO2020175535A1 | 2020-09-03 | |||
| WO2021060312A1 | 2021-04-01 | |||
| WO2021200989A1 | 2021-10-07 |
Foreign References:
| JP2012500316A | 2012-01-05 | |||
| JP2015200754A | 2015-11-12 |
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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