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公开(公告)号：US20230314680A1
公开(公告)日：2023-10-05
申请号：US18331810
申请日：2023-06-08
Applicant: FUJIFILM Corporation
Inventor： Ayako MURAMATSU , Shinnosuke SAKAI , Teruki NIORI , Shinichi MORISHIMA
CPC classification number: G02B5/3016 , G02B5/3083 , G02B5/305 , C09K19/12 , C09K19/2007 , C09K19/2028 , C09K19/3068 , C09K19/3491 , C09K19/3497 , C09K19/3447 , C09K19/24 , C09K19/32 , C09K19/322 , C09K19/3486 , C09K2019/0448
Abstract: To suppress a phenomenon where an optical axis of the optically anisotropic layer is tilted when the optically anisotropic layer is produced by using a liquid crystalline compound showing smectic phase as a materials showing a higher level of orderliness. An optically anisotropic layer wherein a polymerizable composition, containing one or more polymerizable rod-like liquid crystal compound showing a smectic phase, is fixed in a state of smectic phase, and a direction of maximum refractive index of the optically anisotropic layer is inclined at 10° or smaller to the surface of the optically anisotropic layer, a method for manufacturing the same, a laminate and a method for manufacturing the same, a polarizing plate, a liquid crystal display device, and an organic EL display device.
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公开(公告)号：US20210011295A1
公开(公告)日：2021-01-14
申请号：US17034535
申请日：2020-09-28
Applicant: FUJIFILM Corporation
Inventor： Hiroshi SATO , Yukito SAITOH , Ayako MURAMATSU , Daisuke KASHIWAGI , Katsumi SASATA
Abstract: Provided are an optical element that can make the brightness of light emitted from a light guide plate uniform, a light guide element, and an image display device. The optical element includes a patterned cholesteric liquid crystal layer that is obtained by immobilizing a cholesteric liquid crystalline phase, in which the patterned cholesteric liquid crystal layer has a liquid crystal alignment pattern in which a direction of an optical axis derived from a liquid crystal compound changes while continuously rotating in at least one in-plane direction, and the patterned cholesteric liquid crystal layer has regions having different pitches of helical structures in a plane.
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公开(公告)号：US20190276742A1
公开(公告)日：2019-09-12
申请号：US16423619
申请日：2019-05-28
Applicant: FUJIFILM Corporation
Inventor： Keita TAKAHASHI , Mayumi NOJIRI , Ayako MURAMATSU
Abstract: The present invention has an object to provide a polymerizable liquid crystal composition capable of manufacturing an optically anisotropic film having excellent light fastness; and an optically anisotropic film, an optical film, a polarizing plate, an image display device, and an organic electroluminescent display device, each of which uses the polymerizable liquid crystal composition. The polymerizable liquid crystal composition of an embodiment of the present invention contains a polymerizable liquid crystal compound having reverse-wavelength dispersion properties and an aromatic polyether-based compound.
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公开(公告)号：US20180313990A1
公开(公告)日：2018-11-01
申请号：US16026600
申请日：2018-07-03
Applicant: FUJIFILM Corporation
Inventor： Ayako MURAMATSU , Shinnosuke SAKAI , Teruki NIORI , Shinichi MORISHIMA
CPC classification number: G02B5/3016 , C09K19/12 , C09K19/2007 , C09K19/2028 , C09K19/24 , C09K19/3068 , C09K19/32 , C09K19/322 , C09K19/3447 , C09K19/3486 , C09K19/3491 , C09K19/3497 , C09K2019/0448 , C09K2019/2078 , C09K2019/3077 , C09K2019/3408 , C09K2019/3416 , G02B5/305 , G02B5/3083
Abstract: To suppress a phenomenon where an optical axis of the optically anisotropic layer is tilted when the optically anisotropic layer is produced by using a liquid crystalline compound showing smectic phase as a materials showing a higher level of orderliness. An optically anisotropic layer wherein a polymerizable composition, containing one or more polymerizable rod-like liquid crystal compound showing a smectic phase, is fixed in a state of smectic phase, and a direction of maximum refractive index of the optically anisotropic layer is inclined at 10° or smaller to the surface of the optically anisotropic layer, a method for manufacturing the same, a laminate and a method for manufacturing the same, a polarizing plate, a liquid crystal display device, and an organic EL display device.
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公开(公告)号：US20230229002A1
公开(公告)日：2023-07-20
申请号：US18168312
申请日：2023-02-13
Applicant: FUJIFILM Corporation
Inventor： Hiroshi SATO , Yukito SAITOH , Ayako MURAMATSU , Daisuke KASHIWAGI , Katsumi SASATA
CPC classification number: G02B27/0172 , C09K19/36 , C09K19/56 , C09K19/0208 , G02B5/1828 , G02B6/0016 , G02B6/0038 , G02B2027/0123 , G02B2027/0178
Abstract: Provided are an optical element that can make the brightness of light emitted from a light guide plate uniform, a light guide element, and an image display device. The optical element includes a patterned cholesteric liquid crystal layer that is obtained by immobilizing a cholesteric liquid crystalline phase, in which the patterned cholesteric liquid crystal layer has a liquid crystal alignment pattern in which a direction of an optical axis derived from a liquid crystal compound changes while continuously rotating in at least one in-plane direction, and the patterned cholesteric liquid crystal layer has regions having different pitches of helical structures in a plane.
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Patent Agency Ranking
公开(公告)号：US20210173135A1
公开(公告)日：2021-06-10
申请号：US17177547
申请日：2021-02-17
Applicant: FUJIFILM Corporation
Inventor： Naoya SHIBATA , Jun TAKEDA , Yuta FUKUSHIMA , Ayako MURAMATSU
IPC: G02B5/30 , C09D183/04 , C08F116/06 , H01L51/52
Abstract: The present invention provides a laminate used in an image display device the laminate including an optically anisotropic layer, a light-absorbing anisotropic layer, a refractive index-adjusting layer, and an oxygen shielding layer in this order, where the light-absorbing anisotropic layer is formed of a composition containing dichroic azo coloring agent and liquid crystalline compounds, where the dichroic azo coloring agent compound is 10% to 30% by mass with respect to a mass of a total solid content of the light-absorbing anisotropic layer, a degree of alignment of the light-absorbing anisotropic layer is 0.92 or higher, the refractive index-adjusting layer is formed of a composition containing a crosslinkable group compound, and has an in-plane average refractive index of 1.55 to 1.70 (550 nm λ), and an angle formed by an in-plane slow axis of the optically anisotropic layer and an absorption axis of the light-absorbing anisotropic layer is 45°±10°.
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公开(公告)号：US20210026049A1
公开(公告)日：2021-01-28
申请号：US17034512
申请日：2020-09-28
Applicant: FUJIFILM Corporation
Inventor： Yukito SAITOH , Hiroshi SATO , Ayako MURAMATSU
IPC: G02B5/18 , G02F1/1337 , G02B5/30 , G02F1/11
Abstract: Provided is an optical element with which a high diffraction efficiency can be obtained with a simple configuration. The optical element includes: an optically-anisotropic layer that is formed using a composition including a liquid crystal compound, in which the optically-anisotropic layer has a liquid crystal alignment pattern in which a direction of an optical axis derived from the liquid crystal compound changes while continuously rotating in at least one in-plane direction, and the optically-anisotropic layer has a region in which an alignment direction of a liquid crystal compound in at least one of upper and lower interfaces has a pre-tilt angle with respect to the interface.
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公开(公告)号：US20210011319A1
公开(公告)日：2021-01-14
申请号：US17034182
申请日：2020-09-28
Applicant: FUJIFILM Corporation
Inventor： Hiroshi SATO , Yukito SAITOH , Ayako MURAMATSU , Daisuke KASHIWAGI
IPC: G02F1/13363 , G02F1/1337 , G02B5/18 , F21V8/00 , G02F1/1335
Abstract: Provided is an optical element in which transmission of incident light with an angle in a predetermined direction is allowed and the brightness of transmitted light is high. The optical element is formed using a composition including a liquid crystal compound and has a liquid crystal alignment pattern in which a direction of an optical axis derived from the liquid crystal compound rotates in one direction; and the optically-anisotropic layer has regions in which the optical axis is twisted in a thickness direction of the optically-anisotropic layer and rotates, the regions having different magnitudes of twist angles of the rotation in a plane.
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公开(公告)号：US20200088924A1
公开(公告)日：2020-03-19
申请号：US16688294
申请日：2019-11-19
Applicant: FUJIFILM Corporation
Inventor： Ayako MURAMATSU , Shinnosuke SAKAI , Teruki NIORI , Shinichi MORISHIMA
Abstract: To suppress a phenomenon where an optical axis of the optically anisotropic layer is tilted when the optically anisotropic layer is produced by using a liquid crystalline compound showing smectic phase as a materials showing a higher level of orderliness. An optically anisotropic layer wherein a polymerizable composition, containing one or more polymerizable rod-like liquid crystal compound showing a smectic phase, is fixed in a state of smectic phase, and a direction of maximum refractive index of the optically anisotropic layer is inclined at 10° or smaller to the surface of the optically anisotropic layer, a method for manufacturing the same, a laminate and a method for manufacturing the same, a polarizing plate, a liquid crystal display device, and an organic EL display device.
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公开(公告)号：US20240142682A1
公开(公告)日：2024-05-02
申请号：US18481056
申请日：2023-10-04
Applicant: FUJIFILM Corporation
Inventor： Mayumi NOJIRI , Ayako MURAMATSU , Naoya SHIBATA , Yuki HIRAI , Ryoji HIMENO , Shinichi MORISHIMA , Takashi KATOU
CPC classification number: G02B5/208 , C09K19/60 , G02B5/3058
Abstract: A light absorption anisotropic layer which has a high S/N ratio for generating polarized light with respect to rays in an infrared wavelength region, is lightweight, and has excellent handleability, a laminate, and a sensor system including the light absorption anisotropic layer or the laminate. The light absorption anisotropic layer contains a dichroic coloring agent having a maximal absorption at a wavelength of 700 to 1500 nm, in which an average absorbance at a wavelength of 850 nm is 0.24 to 0.50 and a thickness is 5 μm or less.
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