Title:
LIGHT-ABSORPTION ANISOTROPIC LAYER, OPTICAL FILM, VIEWING ANGLE CONTROL SYSTEM, AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/239685
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a light-absorption anisotropic layer used in a viewing angle control system whereby visibility of an image from a desired direction is high and the image is adequately blocked from other directions, and an optical film, a viewing angle control system, and an image display device that use the light-absorption anisotropic layer. This light-absorption anisotropic layer is formed from a liquid crystal composition that contains a liquid crystalline compound, a dichroic substance, and an alignment agent, the content of the dichroic substance being 8.0 mass% or greater with respect to the mass of the total solid content of the liquid crystal composition, and the angle θ formed by the center axis of transmittance of the light-absorption anisotropic layer and the normal direction of the surface of the light-absorption anisotropic layer being 5° to less than 80°.
Inventors:
HOSHINO WATARU (JP)
MATSUYAMA HIROSHI (JP)
YOSHINARI SHINICHI (JP)
MATSUYAMA HIROSHI (JP)
YOSHINARI SHINICHI (JP)
Application Number:
PCT/JP2022/019398
Publication Date:
November 17, 2022
Filing Date:
April 28, 2022
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B5/30; G02F1/1335; G02F1/13363
Domestic Patent References:
| WO2017195833A1 | 2017-11-16 | |||
| WO2018079854A1 | 2018-05-03 | |||
| WO2019132018A1 | 2019-07-04 |
Foreign References:
| JP2009145776A | 2009-07-02 | |||
| JP2006091871A | 2006-04-06 | |||
| US20090141217A1 | 2009-06-04 | |||
| JP2022014565A | 2022-01-20 |
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
Download PDF: