公开(公告)号：US20240272470A1

公开(公告)日：2024-08-15

申请号：US18628527

申请日：2024-04-05

申请人： FUJIFILM Corporation

发明人： Hiroshi SATO ,  Yukito SAITOH ,  Takashi YONEMOTO ,  Makoto ISHIGURO

IPC分类号： G02F1/1335 ,  G02B5/30 ,  G02F1/1337

CPC分类号： G02F1/133504 ,  G02F1/133541 ,  G02F1/133761 ,  G02B5/3083

摘要： Provided are a liquid crystal diffraction element having a high diffraction efficiency irrespective of diffraction angles, an optical element including the liquid crystal diffraction element, and an image display unit, a head-mounted display, a beam steering, and a sensor including the liquid crystal diffraction element or the optical element. The liquid crystal diffraction element includes: an optically-anisotropic layer that is formed of a liquid crystal 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, in a case where a length over which the direction of the optical axis derived from the liquid crystal compound rotates by 180° in a plane is set as a single period, a length of the single period in the liquid crystal alignment pattern gradually changes in the one in-plane direction, in a cross-sectional image of the optically-anisotropic layer obtained by observing a cross-section taken in a thickness direction parallel to the one in-plane direction with a scanning electron microscope, the optically-anisotropic layer has bright portions and dark portions extending from one surface to another surface and each of the dark portions has two or more inflection points of angle, the optically-anisotropic layer has regions where tilt directions of the dark portions are different from each other in the thickness direction, and an average tilt angle of the dark portion gradually changes in the one in-plane direction.

公开(公告)号：US20240255684A1

公开(公告)日：2024-08-01

申请号：US18619723

申请日：2024-03-28

申请人： FUJIFILM Corporation

发明人： Takashi YONEMOTO ,  Yukito SAITOH ,  Yohei HAMACHI ,  Makoto ISHIGURO

IPC分类号： G02B5/30 ,  C09K19/50 ,  G02B27/00

CPC分类号： G02B5/3016 ,  C09K19/50 ,  G02B27/0018

摘要： An object is to provide an optical system capable of improving the brightness of a main image while eliminating a ghost image. In an optical system including: an image display device that emits an image; a linear polarizer through which light associated with the image passes; a first quarter wavelength plate which receives the light from the linear polarizer; a half mirror; a reflective polarizer; and a second quarter wavelength plate provided between the reflective polarizer and the half mirror, retardance of the first quarter wavelength plate and retardance of the second quarter wavelength plate are equal, and thus the object is achieved.

公开(公告)号：US20220373729A1

公开(公告)日：2022-11-24

申请号：US17862967

申请日：2022-07-12

申请人： FUJIFILM Corporation

发明人： Takashi YONEMOTO ,  Yukito SAITOH ,  Yohei HAMACHI ,  Makoto ISHIGURO

IPC分类号： G02B5/30 ,  G02B27/00 ,  C09K19/50

摘要： An object is to provide an optical system capable of improving the brightness of a main image while eliminating a ghost image. In an optical system including: an image display device that emits an image; a linear polarizer through which light associated with the image passes; a first quarter wavelength plate which receives the light from the linear polarizer; a half mirror; a reflective polarizer; and a second quarter wavelength plate provided between the reflective polarizer and the half mirror, retardance of the first quarter wavelength plate and retardance of the second quarter wavelength plate are equal, and thus the object is achieved.

公开(公告)号：US20200310195A1

公开(公告)日：2020-10-01

申请号：US16902590

申请日：2020-06-16

申请人： FUJIFILM Corporation

发明人： Akiko WATANO ,  Tatsuya OBA ,  Hirofumi TOYAMA ,  Takashi YONEMOTO

IPC分类号： G02F1/13357 ,  H01L33/50

摘要： A wavelength conversion member suppresses peeling at an edge at cutting; and is used with a backlight unit and a liquid crystal display device. The wavelength conversion member includes a first substrate, a wavelength conversion layer, and a second substrate, in which each of the first and second substrates includes a support, a barrier layer, and an organic layer, where each of the barrier layers contains at least aluminum and phosphorus, each of the organic layers is formed of a composition containing a polymer A having a glass transition temperature of 50° C. or lower and a polymer B having an acryloyl or methacryloyl group in a molecule thereof, and the wavelength conversion layer is a layer in which at least one selected from the group consisting of a quantum dot, a phosphor particle, and a phosphor coloring agent is dispersed in a matrix made of an acrylic resin.

公开(公告)号：US20170248748A1

公开(公告)日：2017-08-31

申请号：US15593903

申请日：2017-05-12

申请人： FUJIFILM Corporation

发明人： Ryo SATAKE ,  Hideaki ITO ,  Makoto KAMO ,  Takashi YONEMOTO ,  Hirofumi TOYAMA

IPC分类号： F21V8/00 ,  G02F1/1335 ,  H01L27/32

CPC分类号： G02B6/005 ,  G02B6/0051 ,  G02B6/0055 ,  G02F1/1336 ,  G02F2001/133614 ,  G02F2201/50 ,  G02F2202/36 ,  H01L27/322 ,  H01L27/3232

摘要： A wavelength conversion member includes: a wavelength conversion layer including at least one kind of quantum dots and a gettering agent, the quantum dots being excited by excitation light to emit fluorescence, and the gettering agent trapping at least one of water or oxygen; and a barrier layer having a moisture permeability of 0.1 g/(m2·day·atm) or lower that is formed on at least one surface of the wavelength conversion layer. The wavelength conversion layer is a layer obtained by curing a polymerizable composition including the quantum dots and the gettering agent.

公开(公告)号：US20150330602A1

公开(公告)日：2015-11-19

申请号：US14713159

申请日：2015-05-15

申请人： FUJIFILM Corporation

发明人： Takashi YONEMOTO ,  Hiroyuki YONEYAMA ,  Tatsuya OBA ,  Makoto KAMO ,  Yutaka ADEGAWA

IPC分类号： F21V9/16 ,  C09K11/70 ,  C09K11/02 ,  F21V8/00

CPC分类号： C09K11/703 ,  C09K11/025 ,  F21V9/30 ,  G02B6/0026 ,  G02B6/005 ,  G02B6/0073

摘要： A wavelength conversion member including a wavelength conversion layer comprising a quantum dot, wherein the wavelength conversion layer includes an organic matrix, and the organic matrix contains a polymer and one or more of compounds selected from the group consisting of compounds represented by general formula (1) and the like; and a quantum dot-containing polymerizable composition containing a quantum dot, a radical polymerizable compound, and one or more of compounds selected from the group consisting of compounds represented by general formula (1) and the like are provided. The wavelength conversion member has an excellent light resistance and the composition has an excellent photocurability which enables a production of a wavelength conversion member containing a quantum dot which has a less tendency to lower its light emission intensity.

摘要翻译： 一种波长转换构件，包括包括量子点的波长转换层，其中所述波长转换层包括有机基质，并且所述有机基质含有聚合物和一种或多种选自由通式（1）表示的化合物 ）等; 提供了含有量子点，自由基聚合性化合物和选自由通式（1）表示的化合物等的一种或多种化合物的量子点可聚合组合物。 该波长转换构件具有优异的耐光性，并且组合物具有优异的光固化性，其能够制造包含量子点的波长转换构件，其具有较低的发光强度降低的倾向。

公开(公告)号：US20140184992A1

公开(公告)日：2014-07-03

申请号：US14133001

申请日：2013-12-18

申请人： FUJIFILM Corporation

发明人： Megumi SEKIGUCHI ,  Shinichi MORISHIMA ,  Takashi YONEMOTO ,  Hiroshi SATO ,  Taketo OTANI

IPC分类号： G02F1/1335

CPC分类号： G02F1/133504

摘要： A liquid crystal display device includes first and second polarizers with absorption axes orthogonal to each other; first and second substrates between the first and second polarizers and at least one of which has a transparent electrode; and a twisted-nematic liquid crystal cell disposed between the first and second substrates, wherein a light scattering film is provided at a viewing side of the first and second polarizers and includes a support member and a liquid crystal layer composed of a liquid crystal compound, wherein the pitch of the liquid crystal compound ranges between 0.35 μm and 3 μm and is oriented at 45° relative to a liquid-crystal direction of the liquid crystal display device, wherein the liquid crystal layer has a thickness between 0.17 μm and 10 μm, and wherein a weighted scattering area ratio of a goniophotometer scattering profile of the light scattering film satisfies the following expression: S 60 / ( S 0 ) 2 × 1000 > 40 S 0 = ∑ S 0  ( θ ) × θ ∑ S 0  ( θ ) S 60 = ∑ S 60  ( θ ) × exp  ( - 0.2 × θ ) ∑ S 60  ( θ )

摘要翻译： 液晶显示装置包括具有彼此正交的吸收轴的第一和第二偏振器; 第一和第二偏振器之间的第一和第二基板，并且其中至少一个具有透明电极; 以及设置在第一和第二基板之间的扭曲向列型液晶单元，其中在第一和第二偏振器的观察侧设置有光散射膜，并且包括支撑构件和由液晶化合物构成的液晶层， 其中液晶化合物的间距在0.35μm和3μm之间，相对于液晶显示装置的液晶方向取向为45°，其中液晶层的厚度为0.17μm至10μm， 并且其中光散射膜的测角光度计散射分布的加权散射面积比满足以下表达式：S 60 /（S 0）2×1000> 40 S 0 =ΣS 0（＆Thetas;）×＆Thetas; （＆Thetas;）×exp（ - 0.2×＆thetas;）ΣS 60（＆Thetas;）S 60

公开(公告)号：US20240319532A1

公开(公告)日：2024-09-26

申请号：US18679967

申请日：2024-05-31

申请人： FUJIFILM Corporation

发明人： Takashi YONEMOTO ,  Masaaki SUZUKI ,  Koji IIJIMA ,  Hiroshi SATO ,  Ayato SEKINE

IPC分类号： G02F1/1335 ,  G02B27/01 ,  G02F1/13363

CPC分类号： G02F1/133504 ,  G02B27/0172 ,  G02F1/13363

摘要： Provided are a liquid crystal diffraction element, an image display apparatus, and a head mounted display where occurrence of a ghost in a head mounted display such as VR glasses can be suppressed. The liquid crystal diffraction element includes at least an optically-anisotropic layer that is formed of a liquid crystal composition including a liquid crystal compound, in which the optically-anisotropic layer has a liquid crystal alignment pattern in which an orientation of an optical axis derived from the liquid crystal compound changes while continuously rotating in at least one in-plane direction, in a case where a length over which the optical axis rotates by 180 degrees in the one direction is set as a single period, the single period gradually changes in the one direction, and in a case where an average period of 50 periods in the one direction from a period having a longest length of the single period is represented by Λa and a main surface of the optically-anisotropic layer in a region having a period shorter than or equal to the average period Λa is observed with an optical microscope, both of a ratio between a maximum value and a minimum value among widths of 30 continuous bright lines and a ratio between a maximum value and a minimum value among widths of 30 continuous dark lines in the region are 1.2 or less.

公开(公告)号：US20230124399A1

公开(公告)日：2023-04-20

申请号：US18065339

申请日：2022-12-13

申请人： FUJIFILM Corporation

发明人： Yuki FUKUSHIMA ,  Keisuke KODAMA ,  Mitsuyoshi ICHIHASHI ,  Shunya KATOH ,  Yukito SAITOH ,  Takashi YONEMOTO ,  Hiroshi SATO

IPC分类号： G02B5/30 ,  C08F20/30 ,  C09D129/04

摘要： A liquid crystal composition includes: at least one of a compound represented by Formula (I) or a compound represented by Formula (II); and a rod-like liquid crystal compound having a polymerizable group that does not correspond to both of Formula (I) and Formula (II)

公开(公告)号：US20200326590A1

公开(公告)日：2020-10-15

申请号：US16911832

申请日：2020-06-25

申请人： FUJIFILM Corporation

发明人： Naoya SHIBATA ,  Naoya NISHIMURA ,  Wataru HOSHINO ,  Yuzo FUJIKI ,  Takashi YONEMOTO

IPC分类号： G02F1/1335 ,  G02F1/1337 ,  G02F1/1347 ,  C09K19/60

摘要： An object of the present invention is to provide a method for manufacturing an optical laminate in which an alignment defect is less likely to occur in a light-absorbing anisotropic layer even in a case where a surface of a photo-alignment layer is rubbed; an optical laminate; and an image display device. The method for manufacturing an optical laminate according to an embodiment of the present invention is a method for manufacturing an optical laminate in which an optical laminate including a photo-alignment layer and a light-absorbing anisotropic layer and having a front transmittance of 60% or less is produced and which includes a photo-alignment layer formation step of forming a photo-alignment layer on a polymer film, and a light-absorbing anisotropic layer formation step of applying a liquid crystal composition containing a dichroic substance and a high-molecular liquid crystalline compound onto the photo-alignment layer to form a light-absorbing anisotropic layer.