公开(公告)号：US20210292456A1

公开(公告)日：2021-09-23

申请号：US17331647

申请日：2021-05-27

Applicant: FUJIFILM Corporation

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

IPC: C08F220/30 ,  C08F220/32 ,  C08F265/06 ,  G02B5/30

Abstract: An object of the invention is to provide a photo-alignment copolymer capable of improving upper layer coatability after layer formation, a binder composition, a binder layer, an optical laminate, and an image display device. A photo-alignment copolymer according to the embodiment of the invention has a repeating unit A including a photo-alignment group, a repeating unit B including a crosslinkable group which causes a crosslinking reaction by the action of at least one selected from the group consisting of light, heat, an acid, and a base, and a repeating unit C including a cleaving group which decomposes by the action of at least one selected from the group consisting of light, heat, an acid, and a base to produce a polar group, and the repeating unit C has the cleaving group on a side chain, and has a group of atoms which is provided on a side closer to a terminal than the cleaving group on the side chain to be able to unevenly distribute the photo-alignment copolymer on an air interface side.

公开(公告)号：US20200079885A1

公开(公告)日：2020-03-12

申请号：US16682947

申请日：2019-11-13

Applicant: FUJIFILM Corporation

Inventor： Akio TAMURA ,  Reiko INUSHIMA ,  Takashi IIZUMI ,  Yutaka NOZOE ,  Hideyuki NISHIKAWA ,  Kazushige NAKAGAWA ,  Kunihiro ATSUMI

IPC: C08F20/40 ,  C08L63/00 ,  C08F20/30 ,  C08F20/38 ,  C09K19/56 ,  G02B5/30

Abstract: An object of the present invention is to provide a photo-alignable polymer which has excellent coating properties, is capable of suppressing film thickness unevenness, and has excellent upper layer coating properties and good liquid crystal alignment properties after being formed as a layer; a binder composition; a binder layer; an optical laminate; a method for producing an optical laminate; and an image display device. The photo-alignable polymer of an embodiment of the present invention is a photo-alignable polymer having a repeating unit A including a cleavage group capable of decomposing by an action of at least one selected from the group consisting of light, heat, an acid, and a base to generate a polar group, in which the repeating unit A has the cleavage group in a side chain, has a fluorine atom or a silicon atom on a side closer to a terminal than the cleavage group in the side chain, and the photo-alignable polymer satisfies Condition 1 or Condition 2 shown below.Condition 1: The photo-alignable polymer further has a repeating unit B including a photo-alignable group, in addition to the repeating unit A.Condition 2: The repeating unit A includes a photo-alignable group on a side closer to the main chain than the cleavage group in the side chain.

公开(公告)号：US20190353957A1

公开(公告)日：2019-11-21

申请号：US16529168

申请日：2019-08-01

Applicant: FUJIFILM Corporation

Inventor： Kunihiro ATSUMI ,  Yukito SAITOH

IPC: G02F1/1335 ,  B32B7/02 ,  G09F9/30 ,  H01L27/32 ,  H05B33/02 ,  G02B5/30 ,  G02F1/13363 ,  H01L51/52

Abstract: The present invention provides an organic electroluminescent display device that further suppresses reflection of external light and a change in tint in a case of being viewed in an oblique direction, a phase difference film, and a circularly polarizing plate. This organic electroluminescent display device has an organic electroluminescent display panel and a circularly polarizing plate. The circularly polarizing plate has a polarizer and a phase difference film. The phase difference film has, from the polarizer side, a positive A-plate, a first positive C-plate, and a λ/4 plate. The positive A-plate and the first positive C-plate have predetermined optical properties. The in-plane slow axis of the positive A-plate and the absorption axis of the polarizer are orthogonal to each other. The angle formed between the in-plane slow axis of the positive A-plate and the in-plane slow axis of the λ/4 A plate is 45°±10°.

公开(公告)号：US20190302334A1

公开(公告)日：2019-10-03

申请号：US16445819

申请日：2019-06-19

Applicant: FUJIFILM Corporation

Inventor： Kunihiro ATSUMI ,  Yukito SAITOH ,  Shinichi MORISHIMA

IPC: G02B5/30 ,  C09K19/38 ,  B29C41/00 ,  B29C41/02 ,  B29C33/40

Abstract: A phase difference film is formed by using a liquid crystal compound and that indicates an Nz factor of more than 0 and less than 1, an optical film with same, and a display device. The phase difference film is formed by using a composition including a polymerizable liquid crystal compound having a mesogen group, where an order parameter of the mesogen group in an in-plane slow axis direction of the phase difference film is set as Sx, an order parameter of the mesogen group in a direction orthogonal to the in-plane slow axis direction in a plane is set as Sy, and an order parameter of the mesogen group in a thickness direction of the phase difference film is set as Sz, in a case where the mesogen group has a rod or a disc shape, differing Expressions are satisfied.

公开(公告)号：US20190288240A1

公开(公告)日：2019-09-19

申请号：US16420756

申请日：2019-05-23

Applicant: FUJIFILM Corporation

Inventor： Kunihiro ATSUMI ,  Yukito SAITOH

IPC: H01L51/52 ,  G02B5/30

Abstract: The present invention provides a circularly polarizing plate applied to a display device, which further suppresses reflection of external light and a change in tint when viewed in an oblique direction, and an organic electroluminescent display device. The circularly polarizing plate has a polarizer, a λ/2 plate, and a λ/4 plate in this order, in which an angle formed between an absorption axis of the polarizer and an in-plane slow axis of the λ/4 plate is in a range of 20° to 70°, an Nz factor of the λ/4 plate is 0.30 to 0.70, the absorption axis of the polarizer and an in-plane slow axis of the λ/2 plate are orthogonal or parallel to each other, at Nz factor of the λ/2 plate being 0.10 to 0.40, and the Nz factor of the λ/2 plate being 0.60 to 0.90, respectively.

公开(公告)号：US20180215843A1

公开(公告)日：2018-08-02

申请号：US15939848

申请日：2018-03-29

Applicant: FUJIFILM Corporation

Inventor： Wataru HOSHINO ,  Yukito SAITOH ,  Kunihiro ATSUMI

IPC: C08F2/44 ,  C08F20/30 ,  C08F20/36 ,  C08L101/12 ,  C09K19/54 ,  G02B5/30 ,  G02F1/13363

CPC classification number: C08F2/44 ,  C08F20/30 ,  C08F20/36 ,  C08F220/36 ,  C08F220/54 ,  C08F228/02 ,  C08F2220/283 ,  C08L101/00 ,  C08L101/12 ,  C09D4/00 ,  C09K19/3098 ,  C09K19/54 ,  C09K2019/0448 ,  C09K2019/122 ,  C09K2019/123 ,  C09K2019/3004 ,  C09K2019/3009 ,  C09K2019/301 ,  C09K2019/3015 ,  C09K2019/3016 ,  C09K2019/3021 ,  C09K2019/3025 ,  C09K2019/3027 ,  C09K2019/3071 ,  C09K2019/3422 ,  C09K2019/3425 ,  G02B5/3016 ,  G02B5/3025 ,  G02F1/13363 ,  G02F1/133634 ,  G02F2001/133633 ,  Y10T428/10 ,  Y10T428/1036 ,  Y10T428/1086 ,  C08F216/06 ,  C08F218/08

Abstract: An optical film including: a cholesteric layer of a disk-like liquid crystal composition including a disk-like liquid crystal compound, in which the cholesteric layer exhibits a cholesteric liquid crystalline phase, and in which fluctuation of a helical pitch in a film thickness direction of the cholesteric layer is 2% or greater, and having a cholesteric liquid crystalline phase of a disk-like liquid crystal compound and a wide reflection bandwidth; a brightness enhancement film; a backlight unit with a brightness enhancement film; and a liquid crystal display device.