公开(公告)号：US11906865B2

公开(公告)日：2024-02-20

申请号：US17487490

申请日：2021-09-28

Applicant: FUJIFILM Corporation

Inventor： Ryuji Saneto ,  Akira Yamamoto ,  Hideki Kaneiwa ,  Makoto Ishiguro ,  Michio Nagai

IPC: G02F1/137 ,  B32B7/023 ,  G02B5/08

CPC classification number: G02F1/13718 ,  B32B7/023 ,  G02B5/08

Abstract: Provided are a reflective sheet including a cholesteric liquid crystal layer and having excellent reflection wavelength range, diffuse reflectivity, reflectivity, hardness, and scratch resistance; and a transfer film for a reflective sheet that is used for the reflective sheet. The reflective sheet includes a substrate, an adhesive layer, a cholesteric liquid crystal layer, and a hard coat layer in this order, in which in a cross-section of the cholesteric liquid crystal layer observed, at least a part of bright portions and dark portions has a flapping structure, the cholesteric liquid crystal layer has a pitch gradient structure in which a helical pitch changes in a thickness direction, and the helical pitch on the adhesive layer side is larger than that on the hard coat layer side.

公开(公告)号：US10156754B2

公开(公告)日：2018-12-18

申请号：US15001662

申请日：2016-01-20

Applicant: FUJIFILM Corporation

Inventor： Ryuji Saneto ,  Katsufumi Ohmuro

IPC: G02F1/1335 ,  G02F1/13363

Abstract: A liquid-crystal display device having a backlight unit emitting unpolarized blue light, a light conversion member, a polarization separating member, a backlight-side polarizer, a liquid crystal cell, and a display-side polarizing plate wherein the polarization separating member separates the unpolarized blue light into blue transmitted light and blue reflected light which are linearly polarized in vibration directions that are orthogonal to each other, and transmits some of light in a wavelength range each of 500 nm to 600 nm and 600 nm to 650 nm, the light conversion member includes a fluorescent material that, due to blue light entering the light conversion member, emits green light which is linearly-polarized light and red light which is linearly-polarized light; and a transmission axis of the backlight-side polarizer is parallel to vibration directions of the green and red light, is improved in terms of front surface luminance and color reproduction region.

公开(公告)号：US09632640B2

公开(公告)日：2017-04-25

申请号：US14591726

申请日：2015-01-07

Applicant: FUJIFILM Corporation

Inventor： Shinichi Kanna ,  Ryuji Saneto

IPC: B32B3/10 ,  G06F3/044 ,  G06F3/041 ,  G06F3/0354

CPC classification number: G06F3/044 ,  B32B3/10 ,  B32B2260/025 ,  B32B2307/202 ,  B32B2457/208 ,  G06F3/03547 ,  G06F3/0412 ,  G06F2203/04111 ,  G06F2203/04112 ,  Y10T428/24868

Abstract: Provided is a transparent laminate which does not have a problem in which a transparent electrode pattern is visually recognized, a capacitance type input device having the transparent laminate, and an image display device provided with the capacitance type input device as a constituent element. The transparent laminate of the invention includes a region where a transparent substrate, a first transparent film which contains a metal oxide and has a film thickness of 55 nm to 110 nm, a transparent electrode pattern, and a second transparent film which contains 5 mass % to 80 mass % of metal oxide particles and has a film thickness of 55 nm to 110 nm are laminated in this order in a plane.

公开(公告)号：US11789185B2

公开(公告)日：2023-10-17

申请号：US17214076

申请日：2021-03-26

Applicant: FUJIFILM Corporation

Inventor： Makoto Ishiguro ,  Hideki Kaneiwa ,  Nobuhiko Ichihara ,  Akira Yamamoto ,  Ryuji Saneto ,  Michio Nagai

IPC: G02B5/02

CPC classification number: G02B5/0263 ,  G02B5/0284

Abstract: Provided is a reflective sheet that includes a reflective layer having a wide reflection wavelength range, excellent diffusion reflection properties, and inconspicuous defects. The reflective sheet includes a plurality of reflective layers that are laminated, the reflective layers being obtained by immobilizing a cholesteric liquid crystalline phase, in a cross-section of the reflective layer observed with a scanning electron microscope, at least a part of bright portions and dark portions derived from the cholesteric liquid crystalline phase has a flapping structure, a helical pitch in one or more reflective layers changes in a thickness direction, and a thickness of a reflective layer that is formed on a surface other than a surface of the reflective layer is less than those of other reflective layers.

公开(公告)号：US11194169B2

公开(公告)日：2021-12-07

申请号：US16673214

申请日：2019-11-04

Applicant: FUJIFILM Corporation

Inventor： Ryuji Saneto ,  Shuntaro Ibuki ,  Yoji Ito ,  Mitsuo Osato

IPC: G02B27/42 ,  G02B27/00 ,  G02B27/01

Abstract: A light diffraction film includes a transparent substrate; and a light diffraction layer containing a binder resin and particles, in which an average primary particle diameter of the particles is 1 μm to 10 μm, and a coverage of a surface of the transparent substrate covered with the particles is 70% to 90%.

公开(公告)号：US10809562B2

公开(公告)日：2020-10-20

申请号：US16121711

申请日：2018-09-05

Applicant: FUJIFILM Corporation

Inventor： Masato Nagura ,  Ryuji Saneto ,  Yuuichi Fukushige

IPC: G02F1/1335 ,  G02B5/30 ,  G02F1/13357 ,  G02F1/1333

Abstract: A liquid crystal display device includes a liquid crystal panel including at least a liquid crystal cell and a polarizing plate; and a backlight including at least a light source, in which the polarizing plate includes a polarizer and at least one sheet of protective film, the protective film included in the polarizing plate is positioned closest to the backlight side in the liquid crystal panel, and the protective film positioned closest to the backlight side in the liquid crystal panel is an organic solvent-soluble resin film in which an apparent shear strength measured at a surface on the backlight side is 106 MPa or greater and an apparent shear strength measured at a surface on the polarizer side is 101 MPa or less.

公开(公告)号：US09946111B2

公开(公告)日：2018-04-17

申请号：US15050594

申请日：2016-02-23

Applicant: FUJIFILM Corporation

Inventor： Ryuji Saneto ,  Katsufumi Ohmuro

IPC: G02F1/1335 ,  G02B5/26 ,  G02B5/30 ,  F21V8/00 ,  G02F1/13363

CPC classification number: G02F1/133536 ,  G02B5/26 ,  G02B5/30 ,  G02B6/005 ,  G02B6/0056 ,  G02F1/133555 ,  G02F1/133603 ,  G02F1/133617 ,  G02F2001/133531 ,  G02F2001/133541 ,  G02F2001/133614 ,  G02F2001/133638

Abstract: A liquid crystal display device improved in front surface luminance, having a backlight unit, a light conversion member, a polarization separating member, a liquid crystal cell, and a display-side polarizer; the backlight unit includes an unpolarized blue light source and a reflection member that converts circularly-polarized to unpolarized blue light and reflects same; the light conversion member includes a circularly polarized luminescence fluorescent material that emits green and red lights which are circularly-polarized; the polarization separating member includes a reflection polarizer that separates the unpolarized blue light into blue transmitted light that is right- or left-circularly-polarized light and blue reflected light that is the other circularly-polarized light and a λ/4 plate that converts the blue transmitted light, the green and red lights, which are circularly-polarized, to linearly-polarized lights; and an absorption axis of the display-side polarizer is parallel to vibration directions of the blue, green and red lights, which are linearly-polarized.

公开(公告)号：US10578915B2

公开(公告)日：2020-03-03

申请号：US15958290

申请日：2018-04-20

Applicant: FUJIFILM Corporation

Inventor： Ryuji Saneto ,  Yuuichi Fukushige ,  Masato Nagura ,  Hitoshi Namikawa ,  Takashi Tamada

IPC: G02F1/1335 ,  G02B5/30 ,  G02F1/35

Abstract: A liquid crystal display device has a liquid crystal panel including a liquid crystal cell and a polarizing plate; and a backlight unit including a light source. An outermost surface of the liquid crystal panel on the backlight unit side is a surface of a protective film included in the polarizing plate, an outermost surface of the backlight unit on the liquid crystal panel side is a surface of a diffusion member, and where an arithmetic mean roughness measured on an outermost surface of the liquid crystal panel on the backlight unit side is Ra1, a pencil hardness is P1, an arithmetic mean roughness measured on an outermost surface of the backlight unit on the liquid crystal panel side is Ra2, and a pencil hardness is P2, Expression 1: 33 nm

公开(公告)号：US09507202B2

公开(公告)日：2016-11-29

申请号：US14532561

申请日：2014-11-04

Applicant: FUJIFILM Corporation

Inventor： Ryuji Saneto ,  Humitake Mitobe ,  Jun Noguchi

IPC: G02F1/1335 ,  G02B1/10 ,  G02B5/30 ,  C08B3/06 ,  B32B23/08

CPC classification number: G02F1/133528 ,  B32B23/08 ,  B32B2457/202 ,  C08B3/06 ,  G02B1/10 ,  G02B1/105 ,  G02B1/14 ,  G02B1/16 ,  G02B1/18 ,  G02B5/3033 ,  Y10T428/1041 ,  Y10T428/105

Abstract: A polarization plate includes a first protective film, a polarizer, and a second protective film in this order, in which the first protective film is a film including a (meth)acryl-based resin, a thickness of the first protective film is in a range of 20 μm to 30 μm, a thickness of the second protective film is in a range of 1.5 times to 1.8 times of the thickness of the first protective film, and a humidity dimensional change ratio of the second protective film in the direction orthogonal to an absorption axis of the polarizer is in a range of 0.45% to 0.8%.

Abstract translation: 偏振板依次包括第一保护膜，偏振片和第二保护膜，其中第一保护膜是包含（甲基）丙烯酸类树脂的膜，第一保护膜的厚度为 范围为20μm至30μm，第二保护膜的厚度在第一保护膜的厚度的1.5倍至1.8倍的范围内，并且第二保护膜在垂直于第二保护膜的方向上的湿度尺寸变化率 偏振器的吸收轴在0.45％至0.8％的范围内。

公开(公告)号：US09417477B2

公开(公告)日：2016-08-16

申请号：US14605163

申请日：2015-01-26

Applicant: FUJIFILM Corporation

Inventor： Ryuji Saneto ,  Fumitake Mitobe

IPC: G02F1/1335 ,  G02B1/14 ,  G02B1/10 ,  G02B5/30

CPC classification number: G02F1/133528 ,  G02B1/10 ,  G02B1/105 ,  G02B1/14 ,  G02B5/3033 ,  G02F2001/133565 ,  G02F2201/50 ,  Y10T428/269

Abstract: There is provided a polarizing plate including a first protective film, a polarizer, and a second protective film in this order, in which the first protective film is a film including a synthetic polymer, and has a thickness of 30 μm or less, an elastic modulus in the TD direction of 2 GPa to 2.5 GPa, and a humidity dimensional change rate in a TD direction of 0.1% or less, and the second protective film has an evaluation value represented by the following Equation (2) of 7.0 to 11.0: Evaluation value=elastic modulus (GPa) of the second protective film in a TD direction/humidity dimensional change rate (%) of the second protective film in the TD direction×(thickness (μm) of the second protective film/thickness (μm) of the first protective film)2×(30/thickness (μm) of the polarizer)1/2 Equation (2).

Abstract translation: 提供了包括第一保护膜，偏振片和第二保护膜的偏振片，其中第一保护膜是包括合成聚合物的膜，并且具有30μm或更小的厚度，弹性 TD方向的模量为2GPa至2.5GPa，TD方向的湿度尺寸变化率为0.1％以下，第二保护膜具有由下式（2）表示的评价值为7.0〜11.0： 评估值= TD方向上的第二保护膜的弹性模量（GPa）/第二保护膜的TD方向的湿度尺寸变化率（％）×（第二保护膜的厚度（μm）/厚度（μm） 的第一保护膜）2×（30 /偏振片的厚度（μm））1/2等式（2）。