公开(公告)号：US20180356578A1

公开(公告)日：2018-12-13

申请号：US16106677

申请日：2018-08-21

Applicant: FUJIFILM Corporation

Inventor： Kunihiro ATSUMI ,  Yukito SAITO ,  Shinichi MORISHIMA ,  Wataru HOSHINO

IPC: G02B5/30 ,  C09K19/54 ,  C09K19/38

CPC classification number: G02B5/3016 ,  B32B7/02 ,  C09K19/3809 ,  C09K19/542 ,  G02B5/30 ,  G02F1/13363 ,  G02F2001/133638 ,  G09F9/00 ,  H01L51/004 ,  H01L51/50 ,  H01L51/5281 ,  H01L51/56 ,  H01L2251/558 ,  H05B33/02

Abstract: An optical film includes a liquid crystal layer derived from a smectic phase, wherein an Nz factor of the liquid crystal layer is from 0.2 to 0.8. A display device that includes the optical film, and a method of producing an optical film is also provided.

公开(公告)号：US20170363791A1

公开(公告)日：2017-12-21

申请号：US15691235

申请日：2017-08-30

Applicant: FUJIFILM Corporation

Inventor： Junichi HIRAKATA ,  Yujiro YANAI ,  Yoshiaki HISAKADO ,  Kunihiro ATSUMI ,  Yukito SAITOH

IPC: G02B5/30 ,  B29D11/00 ,  B29K33/00 ,  G02F1/1335

CPC classification number: G02B5/3016 ,  B29D11/00644 ,  B29K2033/12 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/133528 ,  G02F2001/133538 ,  G02F2201/54

Abstract: The polarizing plate of the present invention includes a polarizer and an optical element that rotates a polarization plane of polarized light emitted from the polarizer, an orientation direction on a surface of the optical element on a polarizer side is parallel to an absorption axis of the polarizer, an orientation direction on a surface of the optical element opposite to the polarizer is perpendicular to the absorption axis of the polarizer, and Δnd and a birefringence parameter RH of the optical element fall in a range of a predetermined region in an orthogonal coordinate in which Δnd is indicated along a vertical axis and the birefringence parameter RH is indicated along a lateral axis.

公开(公告)号：US20170299785A1

公开(公告)日：2017-10-19

申请号：US15639809

申请日：2017-06-30

Applicant: FUJIFILM Corporation

Inventor： Yukito SAITOH ,  Hideyuki NISHIKAWA ,  Kunihiro ATSUMI ,  Wataru HOSHINO ,  Yoshiaki TAKADA

IPC: G02B5/08 ,  B32B37/10 ,  G02B5/30 ,  B32B37/06 ,  G02F1/13363 ,  G02F1/1335

CPC classification number: G02B5/0816 ,  B32B7/02 ,  B32B37/06 ,  B32B37/10 ,  B32B37/12 ,  B32B2305/72 ,  B32B2307/42 ,  B32B2457/202 ,  G02B5/3016 ,  G02B5/305 ,  G02B5/3083 ,  G02F1/133536 ,  G02F1/133553 ,  G02F1/13363 ,  G02F1/133632 ,  G02F1/133636 ,  G02F2001/133541 ,  G02F2001/133567 ,  G02F2001/133638 ,  G02F2202/023 ,  G02F2413/01 ,  G02F2413/05

Abstract: The present invention provides an optical film including a light reflection layer, in which the light reflection layer is a layer in which alignment of liquid crystal molecules is immobilized, the liquid crystal molecule forms a helical structure in a film thickness direction of the light reflection layer, and a tilt angle of the liquid crystal molecule is 15° to 55°. The present invention also provides a manufacturing method of the optical film including curing a polymerizable liquid crystal composition including a liquid crystal compound and a chiral agent interposed between a support and another support. In the optical film according to the present invention, an absolute value of oblique retardation is smaller. In the liquid crystal display device including the optical film, front surface brightness is high and an oblique change in the shade is suppressed.

公开(公告)号：US20240295682A1

公开(公告)日：2024-09-05

申请号：US18637028

申请日：2024-04-16

Applicant: FUJIFILM Corporation

Inventor： Nobutaka FUKAGAWA ,  Kunihiro ATSUMI ,  Keigo YAMAGUCHI ,  Reiko FUKAGAWA ,  Daisuke SASAKI ,  Kunihiko KODAMA

IPC: G02B5/22 ,  C09B57/00 ,  G02F1/1335 ,  H10K59/80 ,  H10K85/30 ,  H10K85/60

CPC classification number: G02B5/223 ,  C09B57/007 ,  G02F1/133512 ,  H10K59/8792 ,  H10K85/331 ,  H10K85/615 ,  H10K85/636 ,  H10K85/654 ,  H10K85/655 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576

Abstract: A light absorption filter containing a resin, a compound A having an acid group, a compound B that forms a hydrogen bond with the acid group contained in the compound A and generates a radical upon ultraviolet irradiation, and a dye having a main absorption wavelength band in a wavelength range of 400 to 700 nm. There is also an optical filter that uses the light absorption filter and a manufacturing method for the optical filter, as well as an organic electroluminescent display device, an inorganic electroluminescent display device, or a liquid crystal display device, which includes the optical filter.

公开(公告)号：US20240085606A1

公开(公告)日：2024-03-14

申请号：US18488739

申请日：2023-10-17

Applicant: FUJIFILM Corporation

Inventor： Jun ISHIYAMA ,  Kunihiro ATSUMI ,  Ayako MURAMATSU

IPC: G02B5/30

CPC classification number: G02B5/3016

Abstract: A laminate in which the occurrence of cracks is suppressed, and a laminate with a pressure-sensitive adhesive layer, a polarizing plate, and an image display device which use the laminate. The laminate includes a first optically anisotropic layer; and a second optically anisotropic layer, the first optically anisotropic layer and the second optically anisotropic layer being laminated directly or through an alignment film, in which the first optically anisotropic layer satisfies Expression (A) nx>ny, the second optically anisotropic layer satisfies Expression (B) nx 1.0, Expression (4) −40 nm≤Rth(550)≤70 nm, and Expression (5) Rth(550)

公开(公告)号：US20230088847A1

公开(公告)日：2023-03-23

申请号：US17889380

申请日：2022-08-16

Applicant: FUJIFILM Corporation

Inventor： Kunihiro ATSUMI ,  Kazushige NAKAGAWA ,  Yutaka NOZOE ,  Takashi IIZUMI ,  Soichiro WATANABE

IPC: G02F1/13363 ,  G02F1/1335 ,  G02F1/1337 ,  C09K19/56 ,  B32B27/08

Abstract: An object of the present invention is to provide an optical laminate in which an optically anisotropic layer provided as an upper layer has good liquid crystal alignment properties, and a polarizing plate and an image display device using the optical laminate. An optical laminate of the present invention is an optical laminate including: a first optically anisotropic layer; and a second optically anisotropic layer, in which the first and second optically anisotropic layers are directly laminated, each of the first and second optically anisotropic layers consists of a liquid crystal layer, and a photo-alignment polymer having a photo-alignment group and at least one type of polar group selected from the group consisting of a hydroxyl group and a ketone group is present in a surface of the second optically anisotropic layer on a side in contact with the first optically anisotropic layer.

公开(公告)号：US20200264475A1

公开(公告)日：2020-08-20

申请号：US16866522

申请日：2020-05-04

Applicant: FUJIFILM Corporation

Inventor： Shinichi YOSHINARI ,  Ayako MURAMATSU ,  Naoya SHIBATA ,  Kunihiro ATSUMI ,  Daisuke KASHIWAGI

IPC: G02F1/1335 ,  H01L27/32

Abstract: An object of the present invention is to provide is an optical laminate film exhibiting excellent reflection tint and an organic EL display device using this optical laminate film and exhibiting excellent reflection tint when turned off. The object is achieved by providing an optical laminate film including a polarizer, a phase difference layer, and a circularly polarized light separating layer in this order, in which an in-plane retardation Re(550) of the phase difference layer is 120 to 160 nm, the polarizer and the phase difference layer are arranged to form an angle of 45°±10°, the circularly polarized light separating layer is a cholesteric liquid crystal layer formed by fixing a cholesteric liquid crystalline phase and having a liquid crystalline molecule as a main component, and Re(550) is 0.5 to 3.0 nm, and an optical laminate film in which a circularly polarized light separating layer has an in-plane phase difference and an angle formed between a slow axis of a phase difference layer and a slow axis of the circularly polarized light separating layer is −30° to 30°.

公开(公告)号：US20200013835A1

公开(公告)日：2020-01-09

申请号：US16575975

申请日：2019-09-19

Applicant: FUJIFILM Corporation

Inventor： Ayako MURAMATSU ,  Kunihiro ATSUMI ,  Ryo SATAKE ,  Mayumi NOJIRI

IPC: H01L27/32 ,  H01L51/52 ,  G02B5/30

Abstract: The present invention provides an organic electroluminescent display device in which reflection of external light is suppressed and a change in tint in a case of being viewed in an oblique direction is further suppressed, a phase difference film, and a circular polarization plate. This organic electroluminescent display device according to the present invention includes an organic electroluminescence display panel and a circular polarization plate arranged on the organic electroluminescence display panel, in which the circular polarization plate includes a polarizer and a phase difference film, the phase difference film includes a positive A-plate and a positive C-plate, and the positive A-plate and the positive C-plate satisfy prescribed requirements.

公开(公告)号：US20250035827A1

公开(公告)日：2025-01-30

申请号：US18901999

申请日：2024-09-30

Applicant: FUJIFILM Corporation

Inventor： Kunihiro ATSUMI ,  Nobutaka FUKAGAWA

IPC: G02B5/22 ,  H10K59/80

Abstract: A wavelength selective absorption filter and an organic electroluminescent display device including the wavelength selective absorption filter, which includes a resin, and dyes B, C, and D having a main absorption wavelength range in different wavelength regions, in which a light absorbance Ab (λ) of the wavelength selective absorption filter at a wavelength of λ nm satisfies Relational Expression (I) Ab (500)/Ab (600)

公开(公告)号：US20220179250A1

公开(公告)日：2022-06-09

申请号：US17677955

申请日：2022-02-22

Applicant: FUJIFILM Corporation

Inventor： Takashi IIZUMI ,  Soichiro WATANABE ,  Yutaka NOZOE ,  Kunihiro ATSUMI

IPC: G02F1/1334 ,  G02F1/1337 ,  C08L1/10

Abstract: The present invention provides a photo-alignment polymer having excellent liquid crystal aligning properties, a binder composition, a binder layer, an optical laminate, an optical laminate manufacturing method, and an image display device. A photo-alignment polymer according to the embodiment of the present invention has a repeating unit having a photo-alignment group and a repeating unit having a group represented by Formula (1).