公开(公告)号：US20240094452A1

公开(公告)日：2024-03-21

申请号：US18481052

申请日：2023-10-04

Applicant: FUJIFILM Corporation

Inventor： Naoya SHIBATA ,  Takashi KATOU ,  Naoya NISHIMURA ,  Naoki KOITO

IPC: G02B5/30

CPC classification number: G02B5/3016

Abstract: A light absorption anisotropic layer in which, when combined with a λ/4 plate to form a circularly polarizing plate, applying the circularly polarizing plate to a display device, and displaying a display screen in black, coloration is suppressed and utilization efficiency of infrared light is high, a laminate including the light absorption anisotropic layer, a display device, an infrared light irradiation device, and an infrared light sensing device. The light absorption anisotropic layer contains an organic dichroic coloring agent, and satisfies expressions (1) to (4). (1) P(450)>99%, (2) P(550)>99%, (3) P(650)>99%, and (4) A(750)

公开(公告)号：US20220283351A1

公开(公告)日：2022-09-08

申请号：US17752409

申请日：2022-05-24

Applicant: FUJIFILM Corporation

Inventor： Naoya SHIBATA ,  Yasukazu KUWAYAMA ,  Naoki KOITO ,  Yumi KATO ,  Fumitake MITOBE ,  Naoyoshi YAMADA

IPC: G02B5/30 ,  C09J133/10

Abstract: An object of the present invention is to provide a laminate including a light absorption anisotropic layer, in which a decrease in a degree of polarization is suppressed even in a case where the laminate is simultaneously stretched in a plurality of directions, and an optical device and a display device, each using the laminate. The laminate of an embodiment of the present invention is a laminate having at least a resin substrate and a light absorption anisotropic layer, in which a tan δ peak temperature of the resin substrate is 170° C. or lower, the light absorption anisotropic layer includes a liquid crystalline compound and a dichroic substance, and an alignment degree of the dichroic substance is 0.95 or more.

公开(公告)号：US20220281191A1

公开(公告)日：2022-09-08

申请号：US17752415

申请日：2022-05-24

Applicant: FUJIFILM Corporation

Inventor： Takashi YONEMOTO ,  Naoki KOITO ,  Yumi KATO ,  Naoyoshi YAMADA

IPC: B29D11/00 ,  C09K19/56 ,  C09K19/38 ,  C09K19/60 ,  G02B5/30

Abstract: Provided is a method for producing a light absorption anisotropic film having a three-dimensional shape and having excellent alignment, which is capable of manufacturing a light absorption anisotropic film having a high degree of polarization even where a three-dimensional shape is provided by heating molding. The method includes a step of producing an intermediate laminate having an optical coating film formed using a liquid crystal composition containing a liquid crystalline compound and a dichroic substance, and an alignment film; a step of heating the intermediate laminate produced by the film forming step to impart a three-dimensional shape; an aligning step of aligning a liquid crystalline component included in the optical coating film in the intermediate laminate imparted with the three-dimensional shape by the heating molding step to produce a light absorption anisotropic film; and a step of curing the light absorption anisotropic film produced by the aligning step.

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：US20230213823A1

公开(公告)日：2023-07-06

申请号：US18060873

申请日：2022-12-01

Applicant: FUJIFILM Corporation

Inventor： Yumi KATO ,  Naoki KOITO ,  Hiroshi MATSUYAMA ,  Akihiro SUGITA ,  Takehiro KASAHARA ,  Naoyoshi YAMADA

IPC: G02F1/135 ,  G02F1/1333 ,  G02F1/1335 ,  H01J49/40 ,  G02F1/13363

CPC classification number: G02F1/1351 ,  G02F1/133354 ,  G02F1/133509 ,  H01J49/40 ,  G02F1/13363

Abstract: Provided is a light absorption anisotropic film capable of preparing an image display device having excellent display performance and excellent durability, and a laminate and an image display device formed of the light absorption anisotropic film. The light absorption anisotropic film is used for an image display device, which is formed of a liquid crystal composition containing a liquid crystal compound and a dichroic substance, in which in a signal derived from the dichroic substance detected by time-of-flight secondary ion mass spectrometry, a relationship between a maximum intensity Imax of the light absorption anisotropic film in a thickness direction and an intensity Isur1 in a surface of the light absorption anisotropic film on a viewing side of the image display device satisfies Expression (I-1) 2.0≤Imax/Isur1.

公开(公告)号：US20220229218A1

公开(公告)日：2022-07-21

申请号：US17702313

申请日：2022-03-23

Applicant: FUJIFILM Corporation

Inventor： Takashi YONEMOTO ,  Naoki KOITO ,  Shun INOUE

IPC: G02B5/30 ,  H01L51/52

Abstract: Provided is an image display device including an optical laminate having, in order, a pressure-sensitive adhesive layer, a specific laminate including an alignment layer and an optically anisotropic layer which are adjacent to each other, and another pressure-sensitive adhesive layer in this order, in which the pressure-sensitive adhesive layers are adjacent to the two surfaces of the specific laminate. The specific laminate has a thickness of 15 μm or less, the optically anisotropic layer has a thickness of 5 μm or less, and a thickness d of the alignment layer and an elastic modulus E of the alignment layer satisfy Expression (1): −E+0.45×d+3.6>0 (1), where d is in units of μm, and E is in units of GPa.

公开(公告)号：US20210302773A1

公开(公告)日：2021-09-30

申请号：US17338142

申请日：2021-06-03

Applicant: FUJIFILM Corporation

Inventor： Naoki KOITO ,  Takashi YONEMOTO ,  Tetsuro OTSUKA ,  Jun TAKEDA

IPC: G02F1/13363 ,  G02F1/1337 ,  G02F1/1333

Abstract: The present invention provides a light absorption anisotropic film excellent in adhesiveness to an adjacent layer, and a laminate and an image display device, in which the light absorption anisotropic film is used. The light absorption anisotropic film is formed from a liquid crystal composition that contains a high-molecular weight liquid crystal compound and a dichroic substance, and is a light absorption anisotropic film in which regarding a signal derived from the dichroic substance detected by a time-of-flight secondary ion mass spectrometry, a relationship between a maximum intensity Imax in a thickness direction of a film and an intensity Isur on at least one surface of the film satisfies Expression (I-1) 2≤Imax/Isur.

公开(公告)号：US20190264065A1

公开(公告)日：2019-08-29

申请号：US16406009

申请日：2019-05-08

Applicant: FUJIFILM CORPORATION

Inventor： Naoki KOITO ,  Aki NAKAMICHI ,  Takeshi HAMA ,  Yusuke HATANAKA

IPC: C09D183/04 ,  C09D7/61 ,  C03C17/00 ,  C03C17/30

Abstract: Provided are a laminate including a base material, and an anti-fogging layer provided on at least a part of the base material, in which the anti-fogging layer contains a siloxane binder, silica particles, and a water absorption organic polymer, a water absorption amount of the anti-fogging layer is in a range of 1.5 mg/cm2 to 25.0 mg/cm2, a water contact angle of a surface of the anti-fogging layer is in a range of 1° to 20°, and a film thickness of the anti-fogging layer is more than 1 μm and 10 μm or less; a method of producing the same; and an anti-fogging coating composition which is suitably used for formation of the anti-fogging layer.

公开(公告)号：US20250001727A1

公开(公告)日：2025-01-02

申请号：US18816460

申请日：2024-08-27

Applicant: FUJIFILM Corporation

Inventor： Naoya SHIBATA ,  Yuya HAMAGUCHI ,  Takehiro KASAHARA ,  Naoki KOITO

IPC: B32B7/023 ,  B32B27/00 ,  G02B5/30 ,  H10K50/00 ,  H10K59/00

Abstract: A laminate including, in the following order: a first pressure sensitive adhesive layer; a plastic substrate; a photo-alignment layer; a light-absorbing anisotropic layer; a second pressure sensitive adhesive layer; an optically anisotropic layer, wherein the light-absorbing anisotropic layer contains an organic dichroic substance, a thickness of the light-absorbing anisotropic layer is 5 to 300 μm, a thickness of the plastic substrate is 5 μm or less, the first and second pressure sensitive adhesive layers are each a pressure sensitive adhesive layer at a closest position as viewed from the light-absorbing anisotropic layer in the laminate, and H represented by Expression (I) is 0.5 to 8.2, H=(thickness of the first pressure sensitive adhesive layer+thickness of the second pressure sensitive adhesive layer)/total thickness of layers on inner side than the first pressure sensitive adhesive layer and the second pressure sensitive adhesive layer Expression (I).

公开(公告)号：US20230350118A1

公开(公告)日：2023-11-02

申请号：US18349649

申请日：2023-07-10

Applicant: FUJIFILM Corporation

Inventor： Katsufumi OHMURO ,  Daiki WAKIZAKA ,  Naoki KOITO

IPC: G02B5/30

CPC classification number: G02B5/3016

Abstract: Provided is an optical laminate with excellent durability and an image display device formed of the optical laminate. The optical laminate includes a polarizer, a retardation layer including a cycloolefin-based polymer film, and a pressure sensitive adhesive layer in this order, in which the polarizer includes a protective layer on at least one side, and specific conditions are satisfied.