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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
申请人： FUJIFILM Corporation
IPC分类号： G02F1/1335 , H01L27/32 , G02F1/13363
摘要： 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：US10998528B2
公开(公告)日：2021-05-04
申请号：US16583963
申请日：2019-09-26
申请人： FUJIFILM Corporation
摘要： An organic EL image display device that includes a light emitting element substrate; and a circularly polarizing plate. The light emitting element substrate includes a reflecting layer and an organic electroluminescent layer group arranged in a matrix form on the reflecting layer. The reflecting layer, the organic electroluminescent layer group, and the circularly polarizing plate are arranged in this order. A polarization separation layer is provided between the organic electroluminescent layer group and the circularly polarizing plate, and includes polarization separation sites arranged in a matrix form corresponding to the organic electroluminescent layer group. The polarization separation site reflects light of one polarization state and transmits light of the other polarization state in light emitted from the corresponding organic electroluminescent layer. The polarization separation site is divided by a visible light transmission region. The organic EL image display device of the present invention has high brightness and little blurring.
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公开(公告)号：US10222525B2
公开(公告)日：2019-03-05
申请号：US15496622
申请日：2017-04-25
申请人： FUJIFILM Corporation
发明人： Michio Nagai , Yoji Ito , Daisuke Kashiwagi , Akira Yamamoto , Nobuhiko Ichihara , Hideyuki Nakamura
IPC分类号： G06F3/03 , G02B5/26 , G02F1/13 , G06F3/042 , G06F3/0354
摘要： The optical member of the present invention includes: a substrate; and a dot that is in contact with a surface of the substrate, in which the dot has wavelength selective reflecting properties, the dot is formed of a liquid crystal material having a cholesteric structure, the cholesteric structure has a stripe pattern including bright portions and dark portions in a cross-sectional view of the dot when observed with a scanning electron microscope, the dot includes a portion having a height which continuously increases to a maximum height in a direction moving from an end portion of the dot to the center of the dot, in the portion, an angle between a normal line perpendicular to a line, which is firmed using a first dark portion from a surface of the dot, and the surface is in a range of 70° to 90°, and the liquid crystal material includes a surfactant.
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公开(公告)号：US11630308B2
公开(公告)日：2023-04-18
申请号：US17034535
申请日：2020-09-28
申请人： FUJIFILM Corporation
摘要： 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：US11435511B2
公开(公告)日：2022-09-06
申请号：US16867525
申请日：2020-05-05
申请人： FUJIFILM Corporation
摘要： 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：US11150517B2
公开(公告)日：2021-10-19
申请号：US17034182
申请日：2020-09-28
申请人： FUJIFILM Corporation
IPC分类号： G02F1/13363 , G02B5/18 , F21V8/00 , G02F1/1335 , G02F1/1337
摘要： 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：US10459132B2
公开(公告)日：2019-10-29
申请号：US15704572
申请日：2017-09-14
申请人： FUJIFILM Corporation
发明人： Akira Yamamoto , Yoji Ito , Michio Nagai , Daisuke Kashiwagi , Nobuhiko Ichihara
摘要： An optical member includes: a substrate; and a dot formed on a surface of the substrate. The dot has wavelength selective reflecting properties, and a cholesteric structure which has a stripe pattern including bright and dark portions in a cross-sectional view of the dot when observed with a scanning electron microscope. A surface shape of the dot opposite to the substrate in a cross-section of the dot in a thickness direction has at least one inflection point. In the cross-section, an angle between a normal line perpendicular to a line, formed using a first dark portion from a surface of the dot opposite to the substrate, and the surface of the dot, is in a range of 70° to 90°. A proportion of a retroreflective area of the optical member is high when observed after light irradiation from an oblique direction to a normal direction perpendicular to the optical member.
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公开(公告)号：US10310260B2
公开(公告)日：2019-06-04
申请号：US15819533
申请日：2017-11-21
申请人： FUJIFILM Corporation
发明人： Yujiro Yanai , Akira Yamamoto , Michio Nagai , Yukito Saitoh , Daisuke Kashiwagi , Nobuhiko Ichihara
摘要： Provided is a member for displaying a projected image, including: a first base material; a second base material; and an optical member, in which at least one optical member is disposed on a surface of the first base material or the second base material, the optical member includes a plurality of cholesteric liquid crystal dots, the cholesteric liquid crystal dot is formed of a liquid crystal material having a cholesteric structure, the cholesteric structure imparts a striped pattern formed of bright portions and dark portions in a cross-sectional image of the cholesteric liquid crystal dot taken by a scanning electron microscope in a direction perpendicular to a substrate, the dot includes a portion where the height thereof successively increases to the maximum height thereof from an end portion toward the center thereof, an angle between a normal line with respect to a line formed by the first dark portion from the surface of the dot on a side opposite to the substrate and a line representing the surface of the is in a range of 70° to 90° in this portion of the cross-sectional image, and a reflection center wavelength of the dot is in a range of 400 to 1000 nm.
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公开(公告)号：US10281631B2
公开(公告)日：2019-05-07
申请号：US15616419
申请日：2017-06-07
申请人： FUJIFILM Corporation
发明人： Michio Nagai , Yoji Ito , Daisuke Kashiwagi , Akira Yamamoto , Nobuhiko Ichihara , Hideyuki Nakamura
IPC分类号： G02B5/30 , G06F3/0354 , G06F3/042 , G06F3/03
摘要： Provided is an optical member including: a substrate; and a dot that is in contact with a surface of the substrate, in which the dot is formed of a liquid crystal material having a cholesteric structure, and the dot exhibits wavelength selective reflecting properties having two or more reflection peaks. By using the optical member according to the present invention, an image display device in which erroneous detection of data input is reduced can be provided.
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公开(公告)号：US10133175B2
公开(公告)日：2018-11-20
申请号：US15209870
申请日：2016-07-14
申请人： FUJIFILM Corporation
IPC分类号： G03F7/004 , G03F7/038 , C08F220/18 , G02F1/1335 , G02B5/20 , G03F7/00 , G03F7/039 , G03F7/32 , G03F7/40 , H01L51/52 , H01L27/32 , C08F212/14 , C08F220/16 , C08F220/28 , C08F220/36 , G02B1/04 , G02B5/22 , G03F7/16 , G03F7/20 , H01L27/146 , H01L51/00 , H01L51/56
摘要： Provided are a photosensitive resin composition from which a cured product having a thin film thickness, excellent light-shielding properties, and a high surface hardness is obtained; as well as a cured product obtained by curing the photosensitive resin composition, a cured film and a method for producing the same, a method for producing a resin pattern, and a liquid crystal display device, an organic EL display device, an infrared cut filter, or a solid-state imaging device, each having the cured film. The photosensitive resin composition of the present invention includes (Component A) a polymer having a constitutional unit containing a group in which an acid group is protected by an acid-decomposable group; (Component B) a photoacid generator; (Component C) a solvent; (Component D) a compound having a crosslinkable group and a molecular weight in the range of 100 to 2,000; and (Component S) titanium black.
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