公开(公告)号：US11148404B2

公开(公告)日：2021-10-19

申请号：US16720502

申请日：2019-12-19

Applicant: FUJIFILM Corporation

Inventor： Yuzo Fujiki ,  Yasukazu Kuwayama ,  Jun Takeda

IPC: B32B27/20 ,  B32B27/30 ,  B32B7/023 ,  B32B7/027 ,  C08K5/46 ,  G02F1/1337

Abstract: An object of the present invention is to provide a laminate in which an excellent alignment property of a dichroic substance is maintained and which is excellent in both high-temperature durability and moisture-heat resistance, a manufacturing method of the laminate, and an image display device using the laminate. A laminate according to an embodiment of the present invention is a laminate having a transparent support, a light absorption anisotropic film, and a transparent resin layer in this order, in which the light absorption anisotropic film is a film containing a dichroic substance represented by a predetermined formula, and the transparent resin layer is a layer containing a polymer which has a hydrophilic group and does not have a glass transition temperature in a temperature range of 95° C. or lower.

公开(公告)号：US11054691B2

公开(公告)日：2021-07-06

申请号：US16940794

申请日：2020-07-28

Applicant: FUJIFILM Corporation

Inventor： Fumitake Mitobe ,  Jun Takeda ,  Naoya Nishimura ,  Yuzo Fujiki ,  Yumi Katou ,  Yasukazu Kuwayama

IPC: G02F1/1335 ,  G02F1/13363

Abstract: The present invention provides a polarizing plate including a polarizer having a high transmittance, which can be suitably applied to a circularly polarizing plate with which a significant decrease in an antireflection ability is suppressed in a case where the circularly polarizing plate is disposed on a display element; a circularly polarizing plate; and a display device. The polarizing plate includes a polarizer and an adjacent layer in contact with the polarizer, in which a transmittance in the absorption axis direction of the polarizer is 4.0% or more, and an in-plane average refractive index of the adjacent layer satisfies a relationship of Formula (X), Formula (X): Refractive index in a transmission axis direction of the polarizer

公开(公告)号：US10732455B2

公开(公告)日：2020-08-04

申请号：US16531583

申请日：2019-08-05

Applicant: FUJIFILM Corporation

Inventor： Fumitake Mitobe ,  Naoya Nishimura ,  Jun Takeda

IPC: G02F1/1335

Abstract: The present invention is to provide a liquid crystal display device which is capable of suppressing reflected glare of a display screen on a windshield and the like, has excellent front contrast, and has excellent visibility of a display screen as viewed via polarized sunglasses. A liquid crystal display device includes, in order from a viewing side, a viewing side polarizer, a liquid crystal cell, a non-viewing side polarizer, and an anisotropic light absorption layer having an absorption axis in a thickness direction. The liquid crystal display device further includes at least one polarization control layer, in which the polarization control layer is arranged on a viewing side of the viewing side polarizer or on a non-viewing side of the non-viewing side polarizer.

公开(公告)号：US20190196245A1

公开(公告)日：2019-06-27

申请号：US16289038

申请日：2019-02-28

Applicant: FUJIFILM Corporation

Inventor： Nobuhiko Ichihara ,  Yujiro Yanai ,  Rikio Inoue ,  Michio Nagai ,  Jun Takeda

IPC: G02F1/1347 ,  G02F1/1335

CPC classification number: G02F1/13473 ,  B32B7/02 ,  G02B5/30 ,  G02F1/133533 ,  G02F2001/133543

Abstract: An object of the present invention is to provide a decorative sheet exhibiting high lustrousness even when observed from a direction deviated from a specular reflection of illumination light, and a liquid crystal display device and an automobile interior material each using the decorative sheet. The object is achieved by a decorative sheet including a cholesteric liquid crystal layer having wavelength-selective reflectivity and satisfying Expression (1), R[−45,20](λ1)/R[−45,20](λ2)≥5  Expression (1).

公开(公告)号：US12085742B2

公开(公告)日：2024-09-10

申请号：US16582372

申请日：2019-09-25

Applicant: FUJIFILM Corporation

Inventor： Yumi Katou ,  Shinichi Morishima ,  Wataru Hoshino ,  Jun Takeda ,  Kengo Saito ,  Yuzo Fujiki

IPC: G02B5/22 ,  C09B31/043 ,  C09B31/153 ,  C09B31/20 ,  C09B67/22 ,  C09K19/38 ,  C09K19/60 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/1337

CPC classification number: G02B5/3016 ,  C09B31/043 ,  C09B31/153 ,  C09B31/20 ,  C09B67/0046 ,  C09K19/3838 ,  C09K19/601 ,  G02B5/22 ,  G02B5/3083 ,  G02F1/133528 ,  G02F1/133723 ,  C09K2323/03 ,  C09K2323/031 ,  G02F2202/04

Abstract: An object of the invention is to provide an anisotropic light absorption film having both a high alignment degree and high light resistance, and a laminate provided using the anisotropic light absorption film. An anisotropic light absorption film according to the embodiment of the invention is formed from a composition having a first dichroic azo dye, a second dichroic azo dye, and a compound represented by Formula (I) or a polymer thereof, the first dichroic azo dye has a solution absorption maximum wavelength of 400 nm or greater and less than 550 nm, the second dichroic azo dye has a solution absorption maximum wavelength of 550 nm or greater and 750 nm or less, and the film has an arrangement structure of the first dichroic azo dye or an arrangement structure of the second dichroic azo dye therein.

公开(公告)号：US11822108B2

公开(公告)日：2023-11-21

申请号：US17853282

申请日：2022-06-29

Applicant: FUJIFILM Corporation

Inventor： Yasukazu Kuwayama ,  Fumitake Mitobe ,  Yuzo Fujiki ,  Jun Takeda

IPC: G02B5/30

CPC classification number: G02B5/3041 ,  G02B5/3083

Abstract: The present invention provides a polarizing element which has an excellent antireflection function as being applied to an image display device; and a circularly polarizing plate and an image display device, each of which has a polarizing element. The polarizing element has an alignment film and an anisotropic light-absorbing film formed using a dichroic substance, in which a degree S of alignment of the anisotropic light-absorbing film is 0.92 or more, an average refractive index nave at a wavelength of 400 to 700 nm of the alignment film is 1.55 or more and less than 1.78, an in-plane refractive index anisotropy Δn at a wavelength of 550 nm of the alignment film is less than 0.10.

公开(公告)号：US11415733B2

公开(公告)日：2022-08-16

申请号：US16587717

申请日：2019-09-30

Applicant: FUJIFILM Corporation

Inventor： Yasukazu Kuwayama ,  Fumitake Mitobe ,  Yuzo Fujiki ,  Jun Takeda

IPC: G02B5/30 ,  C09K19/56 ,  G02F1/1335 ,  G09F13/00 ,  H01L51/52

Abstract: An object of the present invention is to provide a polarizing element which has an excellent antireflection function as being applied to an image display device; and a circularly polarizing plate and an image display device, each of which has the polarizing element. The polarizing element of an embodiment of the present invention has an alignment film and an anisotropic light-absorbing film formed using a dichroic substance, in which a degree S of alignment of the anisotropic light-absorbing film is 0.92 or more, and an average refractive index nave at a wavelength of 400 to 700 nm of the alignment film is 1.55 to 2.0.

公开(公告)号：US10585300B2

公开(公告)日：2020-03-10

申请号：US15986967

申请日：2018-05-23

Applicant: FUJIFILM Corporation

Inventor： Nobuyuki Akutagawa ,  Jun Takeda

IPC: G02F1/13 ,  B32B7/02 ,  B32B27/18 ,  G02B5/22 ,  C09K19/34 ,  C09K19/20 ,  G02B5/26 ,  C09K19/32 ,  G02B5/20 ,  C03C27/06 ,  B32B17/10 ,  B32B27/30 ,  B32B27/36 ,  B65H18/28 ,  C09K19/50 ,  C09K19/56 ,  C09K19/58 ,  C09K19/04

Abstract: Provided are: an infrared control film in which an infrared light transmittance changes depending on the temperature, a tint in a front direction is excellent, and durability is excellent; and a window including the infrared control film. The infrared control film includes: a liquid crystal layer; and two substrates each of which includes at least one of an ultraviolet absorber or a colorant, in which the liquid crystal layer is disposed between the two substrates, the substrate includes 0.001 mass % or higher of the ultraviolet absorber or the colorant, a transmittance of the infrared control film at 0° C. with respect to an incidence ray at 1000 nm at a polar angle of 0° is higher than 70%, a transmittance of the infrared control film at 40° C. with respect to an incidence ray at 1000 nm at a polar angle of 0° is lower than 60%, and the following expressions are satisfied: 0.8

公开(公告)号：US10514490B2

公开(公告)日：2019-12-24

申请号：US15723746

申请日：2017-10-03

Applicant: FUJIFILM Corporation

Inventor： Yujiro Yanai ,  Yukito Saitoh ,  Shuntaro Ibuki ,  Jun Takeda

IPC: F21V9/14 ,  F21V8/00 ,  G02B5/30

Abstract: Provided is a backlight unit capable of causing light that has exited from a light guide plate to be incident to a liquid crystal panel with high efficiency. The object is achieved by providing the backlight unit including a light source; a light guide plate that causes light to be incident to through an edge face and to exit through one of principal surfaces; and an optical film disposed on a surface of the light guide plate, the surface being on the opposite side of the light exiting surface, in which the optical film has a plurality of reflective polarizing elements each having a curved surface, and/or a plurality of reflective polarizing elements each having an inclined surface that is inclined with respect to the direction of light propagation of the light guide plate.