公开(公告)号：US20240142086A1

公开(公告)日：2024-05-02

申请号：US18529679

申请日：2023-12-05

Applicant: FUJIFILM Corporation

Inventor： Naoki KOITO ,  Yujiro YANAI ,  Makoto KAMO ,  Shinya WATANABE

IPC: F21V9/20 ,  G02B5/30

CPC classification number: F21V9/20 ,  G02B5/3016 ,  F21Y2115/10

Abstract: A lighting device that can switch between intensity distributions of emitted light with a simple configuration. The lighting device includes a light source, a polarization controller, and a polarizing plate, in which the polarization controller switches light emitted from the light source between light components having two or more different polarization states to be incident into the polarizing plate, and the polarizing plate functions as a diffraction grating that has two or more regions having different polarization states of transmitted light in an in-plane direction and where one or more regions among the regions are periodically disposed.

公开(公告)号：US20240125994A1

公开(公告)日：2024-04-18

申请号：US18528187

申请日：2023-12-04

Applicant: FUJIFILM Corporation

Inventor： Wataru HOSHINO ,  Shinichi YOSHINARI ,  Shinya WATANABE

IPC: G02B5/30 ,  G02B5/00

CPC classification number: G02B5/3016 ,  G02B5/003

Abstract: A light absorption anisotropic film that, when being applied to an image display device, it is easy to control a region where visibility is high and a region where visibility is low and viewing angle controllability is more excellent, an optical film, and an image display device. The light absorption anisotropic film contains a dichroic substance and a liquid crystal compound, in which the light absorption anisotropic film has a plurality of regions having different directions of transmittance central axes in an in-plane direction of the light absorption anisotropic film, in the plurality of regions, all angles θ between the transmittance central axes and a normal direction of a surface of the light absorption anisotropic film are in a range of 0° to 70°, and any of a specific requirement 1, a specific requirement 2, or a specific requirement 3 is satisfied.

公开(公告)号：US20230332048A1

公开(公告)日：2023-10-19

申请号：US18339728

申请日：2023-06-22

Applicant: FUJIFILM Corporation

Inventor： Wataru HOSHINO ,  Naoya NISHIMURA ,  Shinya WATANABE

IPC: C09K19/60 ,  C09K19/38 ,  G02B5/00

CPC classification number: C09K19/601 ,  C09K19/3852 ,  G02B5/003 ,  G02F1/133633

Abstract: A light absorption anisotropic film, an optical film, and a liquid crystal display device, with less defects and a high alignment degree even when the concentration of a dichroic substance is increased. The light absorption anisotropic film is formed of a liquid crystal composition containing a liquid crystal compound, a dichroic substance represented by Formula (C-1), a dichroic substance represented by Formula (C-2), in which a total content of the dichroic substances represented by Formula (C-1) and Formula (C-2) is 4.5% by mass or greater with respect to a total mass of a solid content of the liquid crystal composition, and the liquid crystal compound is vertically aligned. When Ra1 and Ra2 represent the same group, —N(Rb11)(Rb12) and —N(Rb21)(Rb22) are groups different from each other. When Ra1 and Ra2 represent different groups, —N(Rb11)(Rb12) and —N(Rb21)(Rb22) may be groups that are the same as or different from each other.

公开(公告)号：US20230314854A1

公开(公告)日：2023-10-05

申请号：US18331818

申请日：2023-06-08

Applicant: FUJIFILM Corporation

Inventor： Shinichi YOSHINARI ,  Shinya WATANABE ,  Naoya SHIBATA ,  Wataru HOSHINO

IPC: G02F1/13 ,  G02F1/1333 ,  G02F1/1337 ,  G02F1/1335

CPC classification number: G02F1/1323 ,  G02F1/133365 ,  G02F1/133703 ,  G02F1/133528 ,  G02F1/133757

Abstract: A light absorption anisotropic film that displays a bright and clear image in a desired direction and makes the image invisible from a direction other than the desired direction using an image display device, a viewing angle control system formed of the light absorption anisotropic film, and an image display device formed of the light absorption anisotropic film. The light absorption anisotropic film includes a light absorption anisotropic layer, and a first alignment layer adjacent to the light absorption anisotropic layer, in which the light absorption anisotropic layer contains a liquid crystal compound and an organic dichroic substance, an angle between a transmittance central axis of the light absorption anisotropic layer and a normal line of the light absorption anisotropic layer is 5° or greater and less than 45°, and the first alignment layer is a layer in which a polymerizable liquid crystal compound is hybrid-aligned.

公开(公告)号：US20170362400A1

公开(公告)日：2017-12-21

申请号：US15674097

申请日：2017-08-10

Applicant: FUJIFILM Corporation

Inventor： Fumitake MITOBE ,  Shinya WATANABE ,  Katsumi SASATA ,  Hajime NAKAYAMA

IPC: C08J5/18 ,  G02B1/14 ,  G02B5/30 ,  G02F1/1335

CPC classification number: C08J5/18 ,  C08J2345/00 ,  G02B1/14 ,  G02B5/3033 ,  G02B5/3083 ,  G02F1/133528

Abstract: There is provided an optical film including: a layer A containing a cyclic olefin-based resin; and a layer B containing a cyclic olefin-based resin, and having a thickness thinner than a thickness of the layer A, wherein a glass transition temperature Tg[B] of the layer B is lower than a glass transition temperature Tg[A] of the layer A.

公开(公告)号：US20230384498A1

公开(公告)日：2023-11-30

申请号：US18447862

申请日：2023-08-10

Applicant: FUJIFILM Corporation

Inventor： Wataru HOSHINO ,  Madoka KAWAI ,  Shinya WATANABE ,  Takuya INOUE ,  Kengo SAITO ,  Naoya NISHIMURA

IPC: G02B5/30 ,  C09K19/60 ,  C09K19/38 ,  C09K19/56

CPC classification number: G02B5/3016 ,  C09K19/601 ,  C09K19/3852 ,  C09K19/56

Abstract: Provided is an optically anisotropic film, an optical film, and a display device, which have a high contrast and excellent light fastness. The optically anisotropic film includes a liquid crystal compound and a dichroic substance, in which the liquid crystal compound is vertically aligned, the dichroic substance forms an arrangement structure, and in a case where, in a cross section observed with a scanning transmission electron microscope, a length of a major axis of the arrangement structure is defined as L, and a length of a minor axis of the arrangement structure is defined as D, 16 or more arrangement structures satisfying L≥30 nm are observed per 40 μm2.

公开(公告)号：US20230118336A1

公开(公告)日：2023-04-20

申请号：US18052438

申请日：2022-11-03

Applicant: FUJIFILM Corporation

Inventor： Shinichi YOSHINARI ,  Eiichiro AMINAKA ,  Naoya NISHIMURA ,  Naoya SHIBATA ,  Shinya WATANABE

IPC: G02F1/13 ,  G02F1/1335 ,  G02F1/13363

Abstract: Provided is a viewing angle control system and an image display device which are capable of controlling the viewing angle of a display screen in a longitudinal direction and improving the visibility in a specific lateral direction. The viewing angle control system includes a polarizer, and a light absorption anisotropic layer, in which the polarizer has an in-plane absorption axis in a film, an angle θ between a transmittance central axis of the light absorption anisotropic layer and a normal line of the film is in a range of 0.1° to 45°, and an angle φ between a direction in which the transmittance central axis of the light absorption anisotropic layer is orthographically projected onto the film surface and the absorption axis of the polarizer is 0° or greater and less than 85°, greater than 95° and less than 265°, or greater than 275° and 360° or less.

公开(公告)号：US20230039106A1

公开(公告)日：2023-02-09

申请号：US17944840

申请日：2022-09-14

Applicant: FUJIFILM Corporation

Inventor： Naoya SHIBATA ,  Naoya NISHIMURA ,  Naoyoshi YAMADA ,  Wataru HOSHINO ,  Shinya WATANABE

IPC: G02F1/1335 ,  G02F1/13 ,  G02F1/1337

Abstract: A liquid crystal display device includes a first polarizer, a liquid crystal cell, and a second polarizer in this order from a viewing side, in which a first light absorption anisotropic layer is disposed on the viewing side of the liquid crystal cell, a second light absorption anisotropic layer is disposed on a non-viewing side of the liquid crystal cell, the first and second polarizers each have an absorption axis in a film surface, the absorption axis of the first polarizer is orthogonal to the absorption axis of the second polarizer, an angle θ1 between a transmittance central axis of the first anisotropic layer and a normal line of the film is in a range of 0° to 45°, and an angle θ2 between a transmittance central axis of the second anisotropic layer and a normal line of the film is in a range of 0° to 45°.

公开(公告)号：US20230037017A1

公开(公告)日：2023-02-02

申请号：US17901462

申请日：2022-09-01

Applicant: FUJIFILM Corporation

Inventor： Naoyoshi YAMADA ,  Fumitake MITOBE ,  Shinya WATANABE

IPC: G02B27/28 ,  G02B5/30

Abstract: A viewing angle control system is used in combination with a high-definition image display device and sufficiently shields light emitted in a direction oblique to a normal direction of a film. The viewing angle control system includes at least a first polarizer, a retardation layer, and a second polarizer in this order, where an absorption axis of the first polarizer forms an angle of 45° or greater with respect to a surface, the retardation layer satisfies Expression (1): an in-plane retardation Re of the retardation layer satisfies an expression of 80 nm

公开(公告)号：US20190086729A1

公开(公告)日：2019-03-21

申请号：US16194393

申请日：2018-11-19

Applicant: FUJIFILM CORPORATION

Inventor： Yukito SAITO ,  Kotaro YASUDA ,  Shinya WATANABE

IPC: G02F1/1335 ,  G02B5/30 ,  G02B5/02 ,  F21V8/00

Abstract: A light guide member includes a light guide layer that guides incident light and emits the light from at least one main surface and a light transmission control layer that is integrally laminated on the light guide layer on a main surface side of the light guide layer that emits the light and controls a region that transmits light, and the light transmission control layer has a polarization conversion layer in which a polarization conversion portion is patterned, between two reflective polarizer layers and having different reflection polarization directions.