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公开(公告)号:US20220011575A1
公开(公告)日:2022-01-13
申请号:US17487076
申请日:2021-09-28
Applicant: FUJIFILM Corporation
Inventor: Yujiro YANAI
Abstract: Provided are a laminated glass capable of achieving distant projection of a virtual image in a HUD and a large screen and furthermore capable of solving a double image, and a HUD using this laminated glass. The laminated glass includes two glass plates, an intermediate film provided between the two glass plates, and a cholesteric liquid crystal layer. The cholesteric liquid crystal layer has a liquid crystal alignment pattern in which a direction of a molecular axis of the liquid crystal compound changes while continuously rotating along at least one in-plane direction on at least one main surface, and a bright portion and a dark portion derived from a cholesteric liquid crystalline phase in a cross-section, which are observed by a scanning electron microscope, are tilted with respect to the main surfaces.
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62.
公开(公告)号:US20210269563A1
公开(公告)日:2021-09-02
申请号:US17322821
申请日:2021-05-17
Applicant: FUJIFILM CORPORATION
Inventor: Yuichi HAYATA , Takeshi HAMA , Nobuhiko ICHIHARA , Yujiro YANAI
Abstract: Provided are a decorative film for molding including a cholesteric liquid crystal layer on a base material, in which the cholesteric liquid crystal layer is a layer formed by curing a liquid crystal composition which includes, with respect to a total solid content of the liquid crystal composition, 25% by mass or more of a cholesteric liquid crystal compound having one ethylenic unsaturated group or one cyclic ether group; a molded product using the decorative film for molding; and a molding method.
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公开(公告)号:US20210263314A1
公开(公告)日:2021-08-26
申请号:US17232997
申请日:2021-04-16
Applicant: FUJIFILM Corporation
Inventor: Akihiro ANZAI , Yujiro YANAI , Wataru MAJIMA , Taketo OTANI
Abstract: Provided are a projection image display member having a high visible light transmittance, suppressing a double image of a display image, and having excellent suitability of polarized sunglasses for incident light reflected from external light, a windshield glass using the projection image display member, and a head-up display system. The problem is solved such that one or more phase difference layers, one or more selective reflection layers, and one or more polarization conversion layers are provided in this order, the polarization conversion layer being a layer in which a helical alignment structure of a liquid crystal compound is fixed, and the number of pitches x of the helical alignment structure and a film thickness y (μm) of the polarization conversion layer satisfying “0.3≤x≤7.0”, “0.5≤y≤6.0”, “y≤0.7x+3.2”, and “y≥0.7x−1.4”.
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公开(公告)号:US20210181513A1
公开(公告)日:2021-06-17
申请号:US17186292
申请日:2021-02-26
Applicant: FUJIFILM Corporation
Inventor: Yujiro YANAI
Abstract: According to the present invention, it is possible to provide a wearable display device having good background visibility, a wide visual angle capable of viewing projected images, and a simple structure. The wearable display device includes at least a transparent screen and a projection device which projects an image on the transparent screen, in which a magnifying lens for viewing the image reflected from the transparent screen is disposed on a viewing side to cover at least a part of the transparent screen.
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公开(公告)号:US20180107106A1
公开(公告)日:2018-04-19
申请号:US15841606
申请日:2017-12-14
Applicant: FUJIFILM Corporation
Inventor: Nobuhiko ICHIHARA , Yujiro YANAI , Akira YAMAMOTO , Michio NAGAI , Daisuke KASHIWAGI , Yukito SAITOH
IPC: G03B21/608 , G02B5/24 , G02B5/09 , G02F1/1335
CPC classification number: G03B21/608 , G02B5/09 , G02B5/10 , G02B5/201 , G02B5/24 , G02B5/26 , G02B5/3016 , G02B27/26 , G02F1/133528 , G02F2001/133541 , G03B21/604 , G03B21/62 , G03B35/26
Abstract: A transparent screen for 3D display having excellent transparency and an excellent viewing angle, and a 3D display system are provided. The transparent screen for 3D display has a plurality of dots, each of the dots having wavelength selectivity and being formed of a liquid crystal material having a cholesteric structure, in which the cholesteric structure gives a striped pattern of bright parts and dark parts in a cross-sectional view of the dot observed by a scanning electron microscope, the dot includes a portion having a height that increases continuously to the maximum height in a direction extending from the edge toward the center of the dot, in the portion, the angle formed by the normal line to a line that is formed by a first dark part as counted from the surface of the dot on the opposite side of the substrate and the surface of the dot is in the range of 70° to 90°, and right-handed circularly polarized light and left-handed circularly polarized light are reflected by the plurality of dots.
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公开(公告)号:US20180039013A1
公开(公告)日:2018-02-08
申请号:US15723746
申请日:2017-10-03
Applicant: FUJIFILM Corporation
Inventor: Yujiro YANAI , Yukito SAITOH , Shuntaro IBUKI , Jun TAKEDA
IPC: F21V8/00
Abstract: Provided is a backlight unit capable of causing light that has exited from a light guide plate to be incident to a liquid crystal panel with high efficiency. The object is achieved by providing the backlight unit including a light source; a light guide plate that causes light to be incident to through an edge face and to exit through one of principal surfaces; and an optical film disposed on a surface of the light guide plate, the surface being on the opposite side of the light exiting surface, in which the optical film has a plurality of reflective polarizing elements each having a curved surface, and/or a plurality of reflective polarizing elements each having an inclined surface that is inclined with respect to the direction of light propagation of the light guide plate.
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公开(公告)号:US20170343830A1
公开(公告)日:2017-11-30
申请号:US15678498
申请日:2017-08-16
Applicant: FUJIFILM Corporation
Inventor: Michio NAGAI , Yoji ITO , Akira YAMAMOTO , Yukito SAITOH , Yujiro YANAI , Daisuke KASHIWAGI , Nobuhiko ICHIHARA
IPC: G02B27/28
CPC classification number: G02B27/288 , G02B5/0215 , G02B5/0236 , G02B5/0284 , G02B5/201 , G02B5/3016 , G02B27/26 , G03B21/567 , G03B21/60 , G03B21/62
Abstract: A transparent screen includes a substrate capable of transmitting light; and a plurality of dots formed on a surface of the substrate, each of the dots having wavelength-selective reflectivity and being formed of a liquid crystal material having a cholesteric structure, in which the cholesteric structure gives a striped pattern of bright parts and dark parts in a cross-sectional view of the dot observed by scanning electron microscope, the dot includes a portion having a height that increases continuously to the maximum height in a direction extending from the edge toward the center of the dot, and in the portion, the angle formed by the normal line to a line that is formed by a first one of the dark parts as counted from the surface of the dot on the opposite side of the substrate and the surface of the dot is in the range of 70° to 90°.
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68.
公开(公告)号:US20170336555A1
公开(公告)日:2017-11-23
申请号:US15672727
申请日:2017-08-09
Applicant: FUJIFILM Corporation
Inventor: Yujiro YANAI , Yukito SAITOH , Akira YAMAMOTO , Nobuhiko ICHIHARA , Daisuke KASHIWAGI , Michio NAGAI
IPC: F21V8/00 , G02F1/1335
CPC classification number: G02B6/0055 , G02B5/02 , G02B5/3016 , G02B6/0045 , G02F1/133528 , G02F1/1336 , G02F1/13718 , G02F2203/02
Abstract: Provided is an optical member having a high brightness, a low haze, and a small color change, an optical element, a liquid crystal display device, and a near-to-eye optical member. The optical member includes a plurality of cholesteric liquid crystal dots that are provided on a substrate, in which a shape of each of the dots is a hemispherical or elliptical hemispherical shape in which the substrate side is planar, a conical or elliptical conical shape in which the substrate side is set as the bottom, or a shape in which a plurality of shapes selected from the shapes are laminated, the cholesteric liquid crystal dot has a reflection center wavelength with respect to visible light, the cholesteric structure of the dot 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, and in the portion, an angle between a normal line perpendicular to a line, which is 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°.
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公开(公告)号:US20170123267A1
公开(公告)日:2017-05-04
申请号:US15388839
申请日:2016-12-22
Applicant: FUJIFILM Corporation
Inventor: Yujiro YANAI , Yukito SAITOH
IPC: G02F1/1335 , G02F1/13363
CPC classification number: G02F1/133536 , G02B5/3025 , G02F1/13362 , G02F1/133621 , G02F1/13363 , G02F2001/133543 , G02F2001/133607 , G02F2001/133614 , G02F2001/133638 , G02F2202/36 , G02F2413/01 , G02F2413/05
Abstract: A liquid crystal display device includes a backlight that emits unpolarized blue light, a reflective polarizing layer which is provided on an emission side of the backlight and converts blue light to linearly polarized light, a quantum rod layer which is provided on a blue linearly polarized light emission side of the reflective polarizing layer and converts blue linearly polarized light to red linearly polarized light and green linearly polarized light using multiple quantum rods, and a liquid crystal panel disposed on a red linearly polarized light and green linearly polarized light emission side. In the quantum rod layer, a polarization direction of the blue linearly polarized light emitted from the reflective polarizing layer and a long axis direction of the quantum rods are parallel to each other.
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公开(公告)号:US20170108726A1
公开(公告)日:2017-04-20
申请号:US15392383
申请日:2016-12-28
Applicant: FUJIFILM Corporation
Inventor: Yujiro YANAI , Yukito SAITOH
IPC: G02F1/1335 , G02F1/13363
CPC classification number: G02F1/13362 , G02F1/133536 , G02F1/13363 , G02F1/13718 , G02F2001/133548 , G02F2001/133614 , G02F2001/133638 , G02F2202/36
Abstract: Provided is a liquid crystal display device in which color reproducibility and brightness are improved. The liquid crystal display device includes a backlight that emits unpolarized blue light, a quantum rod layer which is provided on an emission side of the backlight and converts some of blue light to red linearly polarized light and green linearly polarized light using multiple quantum rods, a reflective polarizing layer which is provided on a side from which the red linearly polarized light and the green linearly polarized light of the quantum rod layer are emitted, and a liquid crystal panel disposed on a blue linearly polarized light emission side of the reflective polarizing layer, and a long axis direction of the quantum rods in the quantum rod layer and a polarization direction of the blue linearly polarized light emitted from the reflective polarizing layer are parallel to each other.
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