LIGHT ABSORBING ANISOTROPIC FILM, VIEWING ANGLE CONTROL SYSTEM, AND IMAGE DISPLAY DEVICE

WIPO Patent Application WO/2022/138548

A1

The present invention addresses the problem of providing: a light absorbing anisotropic film capable of displaying a bright, clear image in a desired direction and hiding the image in other directions in an image display device; a viewing angle control system using said light absorbing anisotropic film; and an image display device using the same. This problem is solved by a light absorbing anisotropic film, which has a light absorbing anisotropic layer including a liquid crystal compound and an organic dichroic substance, and in which the difference between an angle θA and an angle θB is 15° or less, the angle θA being 5° or more and less than 45°, wherein: θA is an angle formed by the normal of the light absorbing anisotropic layer and an orientation direction of a light absorption axis of the organic dichroic substance in one surface of the light absorbing anisotropic layer; and θB is an angle formed by the normal of the light absorbing anisotropic layer and the orientation direction of the light absorption axis of the dichroic substance on the other surface of the light absorbing anisotropic layer.

YOSHINARI SHINICHI (JP)
WATANABE SHINYA (JP)
SHIBATA NAOYA (JP)
HOSHINO WATARU (JP)

PCT/JP2021/046988

June 30, 2022

December 20, 2021

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FUJIFILM CORP (JP)

G02B5/30; G02F1/1335; G02F1/13363; G09F9/00; H01L27/32; H01L51/50; H05B33/02

WO2018079854A1

2018-05-03

JP2009145776A	2009-07-02
JP2016027387A	2016-02-18
JP2011215337A	2011-10-27
JP2019120949A	2019-07-22

ITOH Hideaki et al. (JP)

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