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公开(公告)号：US11286423B2
公开(公告)日：2022-03-29
申请号：US16983263
申请日：2020-08-03
Applicant: FUJIFILM Corporation
Inventor： Yumi Katou , Jun Takeda
Abstract: A laminate is provided having excellent adhesiveness between a light absorption anisotropic film and a barrier layer, a manufacturing method of the laminate, and an image display device using the laminate. A laminate having: a barrier layer A; and a light absorption anisotropic film B, in which the barrier layer A is adjacently provided on the light absorption anisotropic film B, a relationship between a highest content of a compound A1 contained in the barrier layer A and a highest content of a compound B1 contained in the light absorption anisotropic film B satisfies a relationship in which a value of distance calculated from Hansen solubility parameters and represented by Formula (I) is within a range of 0.0 to 5.0, and the light absorption anisotropic film B contains a component same as the compound A1. distance={4×(δD(B1)−δD(A1))2+(δP(B1)−δP(A1))2+(δH(B1)−δH(A1))2}0.5 (I)
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公开(公告)号：US11173694B2
公开(公告)日：2021-11-16
申请号：US16720502
申请日：2019-12-19
Applicant: FUJIFILM Corporation
Inventor： Yuzo Fujiki , Yasukazu Kuwayama , Jun Takeda
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.
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公开(公告)号：US11022837B2
公开(公告)日：2021-06-01
申请号：US16391875
申请日：2019-04-23
Applicant: FUJIFILM Corporation
Inventor： Naoya Nishimura , Jun Takeda
IPC: G02F1/13 , G02F1/1335 , G02B5/30 , B32B27/30 , B32B7/023 , G02F1/1337 , G02F1/13363
Abstract: The present invention provides an optical film which has excellent light resistance and durability, while being suppressed in the occurrence of internal reflection and a liquid crystal display device. An optical film according to the present invention includes a light absorption anisotropic layer having at least one dichroic dye compound, and a protective layer that is adjacent to the light absorption anisotropic layer, and the light absorption anisotropic layer and the protective layer satisfy a specific relational expression.
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公开(公告)号：US10215899B2
公开(公告)日：2019-02-26
申请号：US14995671
申请日：2016-01-14
Applicant: FUJIFILM Corporation
Inventor： Jun Takeda , Shunya Katoh , Michio Nagai , Yoji Ito , Masaya Suzuki
IPC: G02F1/1335 , G02B5/30 , G02F1/13363 , G02F1/1337 , G02F1/1343
Abstract: A liquid crystal (LC) display device uses a phase difference film which increases front contrast of the device, and a polarization plate. The film includes a first optical anisotropic layer, and a second optical anisotropic layer thereon, the first layer formed by fixing an LC compound in a homogeneous alignment state, has an order parameter (OP) of 0.75 to 0.95, and layer thickness of 0.3 μm to 3.0 μm, the second layer formed by fixing an LC compound in a homeotropic alignment state, has an OP of 0.60 to 0.95, and layer thickness of 0.3 μm to 3.0 μm, the OP which is denoted by OP=(A∥−A⊥)/(2A⊥+A∥), “A∥” which represents absorbance of the LC compound regarding light polarized parallel to an alignment direction, and “A⊥” which represents absorbance of the LC compound regarding light polarized vertical to the alignment direction.
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公开(公告)号：US09383491B2
公开(公告)日：2016-07-05
申请号：US14325875
申请日：2014-07-08
Applicant: FUJIFILM Corporation
Inventor： Jun Takeda , Shunya Katoh , Michio Nagai , Yoji Ito
IPC: C09K19/00 , G02B5/30 , G02F1/13363
CPC classification number: G02B5/3016 , G02F1/13363 , G02F2001/133633 , Y10T428/10 , Y10T428/1036 , Y10T428/105
Abstract: A retardation film includes a first optically anisotropic layer having liquid crystal compounds fixed in a homogeneously aligned state and a leveling agent, and having an order parameter of 0.75 to 0.95 and a thickness of 0.3 to 3.0 μm; an intermediate layer including a resin having a solubility parameter SP value of 21.5 to 24.7, calculated by Hoy's method, the intermediate layer having a thickness of 3.0 μm or less; and a second optically anisotropic layer having liquid crystal compounds fixed in a homeotropically aligned state, and having an order parameter OP of 0.6 to 0.95 and a thickness of 0.3 to 3.0 μm, wherein OP is represented by the following equation; OP=(A∥−A⊥)/(2A⊥+A∥) where A∥ is absorbance of the liquid crystal compounds for light polarized parallel to an alignment direction, and A⊥ is absorbance of the liquid crystal compounds for light polarized perpendicular to the alignment direction.
Abstract translation: 延迟膜包括具有均匀取向状态的液晶化合物的第一光学各向异性层和流平剂，并且具有0.75至0.95的顺序参数和0.3至3.0μm的厚度; 中间层，其具有通过Hoy's方法计算的溶度参数SP值为21.5〜24.7的树脂，中间层的厚度为3.0μm以下; 和具有固定在垂直取向状态的液晶化合物的第二光学各向异性层，并且具有0.6至0.95的阶数参数OP和0.3至3.0μm的厚度，其中OP由下式表示; OP =（A∥-A⊥）/（2A⊥+A‖）其中A∥是与取向方向平行偏光的液晶化合物的吸光度，A⊥是用于光偏振垂直的液晶化合物的吸光度 到排列方向。
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Patent Agency Ranking
6.发明授权Laminated optical film, and polarizing plate and liquid crystal display including the same 有权层压光学薄膜，偏光板和包括其的液晶显示器公开(公告)号：US08995056B2
公开(公告)日：2015-03-31
申请号：US13629362
申请日：2012-09-27
Applicant: FUJIFILM Corporation
Inventor： Jun Takeda , Masato Nakao
IPC: G02B5/30 , G02F1/1335 , B32B7/02 , B32B23/04 , B32B27/06 , G02F1/13363 , G02B27/28
CPC classification number: B32B7/02 , B32B23/04 , B32B27/06 , G02B5/30 , G02B5/3016 , G02B27/286 , G02F1/13363 , G02F2202/40 , G02F2413/02
Abstract: A laminated optical film which exhibit a high front contrast ratio and even brightness, improve viewing angle characteristics of a liquid crystal display of a horizontal alignment mode, and have high durability.A laminated optical film comprising: a B layer; and a C layer, wherein the B layer satisfies the following three formulae (Ib) to (IIIb), the C layer satisfies the following two formulae (Ic) and (IIc), and the absolute value |ΔSP value| of a difference in SP value between the primary components of the B and C layers is not more than 1.5, the SP value being determined by Hoy's method. 1.0≦Nz≦3.0; (Ib): 70 nm≦Re (550); and (IIb): 0 nm≦Rth (550)≦200 nm, (IIIb): Re (550)≦10 nm; and (Ic): −200 nm≦Rth (550)≦−50 nm (IIc):
Abstract translation: 具有高前方对比度和均匀亮度的层压光学膜，改善了水平对准模式的液晶显示器的视角特性，并具有高耐久性。 一种层叠光学膜，包括：B层; 和C层，其中B层满足以下三个式（Ib）至（IIIb），C层满足以下两个式（Ic）和（IIc），绝对值| | Dgr; SP值| B层和C层主要组分之间的SP值差异不大于1.5，SP值由Hoy's方法确定。 1.0＆nlE; Nz＆nlE; 3.0; （Ib）：70nm＆amp; Re; Re（550）; 和（IIb）：0nm＆nlE; Rth（550）＆nlE; 200nm，（IIIb）：Re（550）＆nlE; 10nm; 和（Ic）：-200nm＆nlE; Rth（550）＆nlE; -50nm（IIc）：
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公开(公告)号：US11487055B2
公开(公告)日：2022-11-01
申请号：US16940798
申请日：2020-07-28
Applicant: FUJIFILM Corporation
Inventor： Naoya Nishimura , Fumitake Mitobe , Yuzo Fujiki , Jun Takeda
Abstract: An object of the present invention is to provide a laminate in which the coloring of reflected light is reduced. The laminate includes an optical film having a light absorption anisotropic film formed using a composition including a dichroic substance and having a transmittance of more than 50%, a λ/4 plate, and a metal electrode in this order, in which in a case where a degree (%) of polarization at a wavelength of λ of the optical film is defined as P(λ) and a reflectance (%) at the wavelength of λ of the metal electrode is defined as R(λ), a ratio of a minimum value of R/P to a maximum value of R/P at wavelengths of 450 nm, 550 nm, and 650 nm is more than 85%.
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公开(公告)号：US11009754B2
公开(公告)日：2021-05-18
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 , G02B5/30 , B32B7/02 , G02F1/1335
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).
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公开(公告)号：US10816848B2
公开(公告)日：2020-10-27
申请号：US16170746
申请日：2018-10-25
Applicant: FUJIFILM Corporation
Inventor： Fumitake Mitobe , Jun Takeda , Yasukazu Kuwayama , Yuya Hamaguchi
IPC: G02F1/1335 , G02F1/13363 , G02B5/30
Abstract: A method for manufacturing a polarizing plate having excellent appearance properties and including a polarizer, an optical rotatory layer, and a brightness enhancement film, a polarizing plate, and a liquid crystal display device including the polarizing plate, are described. The method includes forming an optical rotatory layer, which has a film thickness of 1 to 10 μm and rotates a polarization axis of linearly polarized light, on a temporary support to manufacture a temporary support with an optical rotatory layer; bonding the optical rotatory layer of the temporary support with an optical rotatory layer and polarizer through a curable adhesive layer, and curing the curable adhesive layer to form a first bonding layer having a storage elastic modulus of 2 to 1500 MPa; peeling off the temporary support from the laminate; and bonding the optical rotatory layer of the laminate and a brightness enhancement film through a second bonding layer.
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10.发明授权公开(公告)号：US10605971B2
公开(公告)日：2020-03-31
申请号：US15894449
申请日：2018-02-12
Applicant: FUJIFILM Corporation
Inventor： Kunihiro Atsumi , Yukito Saitoh , Katsufumi Ohmuro , Jun Takeda , Shinichi Morishima
IPC: G02F1/13363 , G02F1/1335 , G02B5/30
Abstract: The present invention includes an optical element of which an oblique tint change can be improved in a case of the optical element is incorporated to a liquid crystal display device, a method of manufacturing an optical element, and a liquid crystal display device. The optical element includes: a reflection polarizer which is formed of a discotic liquid crystal compound and in which a cholesteric liquid crystalline phase is immobilized, in which, in the reflection polarizer, a front retardation value Re satisfies 0 nm≤Re
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