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公开(公告)号：US11692050B2
公开(公告)日：2023-07-04
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: G02B5/30 , C08F220/30 , C08F220/32 , C08F265/06 , H10K50/86
CPC classification number: C08F220/303 , C08F220/32 , C08F265/06 , G02B5/3016 , C09K2323/02 , C09K2323/023 , H10K50/86
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.
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公开(公告)号：US11029557B2
公开(公告)日：2021-06-08
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 , G02F1/13363
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°.
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公开(公告)号：US11186775B2
公开(公告)日：2021-11-30
申请号：US16686969
申请日：2019-11-18
Applicant: FUJIFILM Corporation
Inventor： Hideyuki Nishikawa , Kunihiro Atsumi , Yutaka Nozoe , Yuki Nakazawa
IPC: G02F1/1333 , C09K19/38 , C09K19/54 , G02B5/30 , G02F1/1335 , H01L51/52
Abstract: An object of the present invention is to provide a polymerizable liquid crystal composition which has excellent coating properties, is capable of suppressing film thickness unevenness, and has good coating properties for an upper layer coating liquid after being formed as an optically anisotropic layer, an anisotropic layer formed using the same; an optical laminate; a method for producing an optical laminate, and an image display device. The polymerizable liquid crystal composition of the embodiment of the present invention is a polymerizable liquid crystal composition containing a polymerizable liquid crystal compound, a polymerization initiator, and a compound having a monovalent specific group 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 specific group has a fluorine atom or a silicon atom on a side closer to a terminal than the cleavage group.
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公开(公告)号：US10854852B2
公开(公告)日：2020-12-01
申请号：US16678821
申请日：2019-11-08
Applicant: FUJIFILM Corporation
Inventor： Ayako Muramatsu , Daisuke Kashiwagi , Shinichi Yoshinari , Kunihiro Atsumi , Ryoji Goto
Abstract: The present invention provides an organic EL image display device including a light emitting element substrate, and a circularly polarizing plate, in which the light emitting element substrate includes a reflecting layer and an organic electroluminescent layer on the reflecting layer, the reflecting layer, the organic electroluminescent layer, and the circularly polarizing plate are arranged in this order, a polarization separation layer is provided between the organic electroluminescent layer and the circularly polarizing plate, the polarization separation layer includes a polarization separation region that reflects light of one polarization state in light emitted from the organic electroluminescent layer, and transmits light of another polarization state, and a visible light transmission region, the polarization separation region is formed of a layer formed by immobilizing a cholesteric liquid crystalline phase, and a positive C region-containing layer is provided between the organic electroluminescent layer and the circularly polarizing plate. The organic EL image display device according to the present invention has high brightness and little light leakage and blurring at the time of oblique observation.
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公开(公告)号：US11319393B2
公开(公告)日：2022-05-03
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 , C08F222/10 , C08F20/30 , C08F20/38 , C08L63/00 , C09K19/56 , G02B5/30 , C08F220/30
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.-
Patent Agency Ranking
公开(公告)号：US11169389B2
公开(公告)日：2021-11-09
申请号：US16297743
申请日：2019-03-11
Applicant: FUJIFILM CORPORATION
Inventor： Yukito Saitoh , Kunihiro Atsumi , Naoyoshi Yamada , Daisuke Kashiwagi , Shigeaki Nimura , Mitsuyoshi Ichihashi , Rie Takasago
Abstract: An optical laminate includes a cholesteric liquid crystal layer and a lenticular lens which is laminated on the cholesteric liquid crystal layer, the cholesteric liquid crystal layer has a plurality of regions which are arranged in a pattern in an arrangement direction of lenses of the lenticular lens and are different from each other in terms of the reflection center wavelength for front incident light, and among the plurality of regions, a region having the shortest reflection center wavelength is disposed at a focus position of the lenticular lens for the front incident light, and among the plurality of regions, a region having a longer reflection center wavelength is disposed further away from the focus position.
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公开(公告)号：US11435511B2
公开(公告)日：2022-09-06
申请号：US16867525
申请日：2020-05-05
Applicant: FUJIFILM Corporation
Inventor： Shinichi Yoshinari , Ayako Muramatsu , Naoya Shibata , Kunihiro Atsumi , Daisuke Kashiwagi
Abstract: An object of the present invention is to provide is an optical laminate film exhibiting excellent uniformity in reflection tint and an organic EL display device using this optical laminate film and exhibiting excellent uniformity in 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, in a case where an average refractive index of the liquid crystal compound forming the circularly polarized light separating layer is n, a birefringence thereof is Δn, and a selective reflection center wavelength thereof is λ, it is “ReMAX [nm]=k×Δn×λ/n (where k=0.213)”, and an in-plane retardation Re(550) of the circularly polarized light separating layer satisfies “0.5×ReMax≤Re(550)≤R.
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公开(公告)号：US11333813B2
公开(公告)日：2022-05-17
申请号：US16597144
申请日：2019-10-09
Applicant: FUJIFILM Corporation
Inventor： Yukito Saitoh , Kunihiro Atsumi , Teruki Niori , Shinichi Morishima
IPC: G02F1/13363 , H01L51/52 , G02B5/30 , G02F1/1343
Abstract: An optical film is an optical film in which a cholesteric liquid crystalline phase is fixed and a helical axis of the cholesteric liquid crystalline phase is aligned in an in-plane uniaxial direction, and an Nz is 0.2 to 0.75.
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9.发明授权公开(公告)号：US10935836B2
公开(公告)日：2021-03-02
申请号：US16529168
申请日：2019-08-01
Applicant: FUJIFILM Corporation
Inventor： Kunihiro Atsumi , Yukito Saitoh
IPC: G02F1/1335 , B32B7/02 , G02B5/30 , G02F1/13363 , G09F9/30 , H01L27/32 , H01L51/52 , H05B33/02
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°.
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10.发明授权公开(公告)号：US12196992B2
公开(公告)日：2025-01-14
申请号：US18488739
申请日：2023-10-17
Applicant: FUJIFILM Corporation
Inventor： Jun Ishiyama , Kunihiro Atsumi , Ayako Muramatsu
IPC: G02F1/13363 , B32B7/023 , G02B5/30 , G02F1/1335
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)
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