中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

40 records (took 0.034 seconds)

    PHOSPHOR-CONTAINING FILM AND BACKLIGHT UNIT
    21.
    发明申请
    PHOSPHOR-CONTAINING FILM AND BACKLIGHT UNIT 审中-公开

    公开(公告)号：US20200032137A1

    公开(公告)日：2020-01-30

    申请号：US16590897

    申请日：2019-10-02

    Applicant: FUJIFILM Corporation

    Inventor： Akiko WATANO ,  Tatsuya OBA ,  Hirofumi TOYAMA

    IPC: C09K11/02 ,  F21V8/00

    Abstract: Provided is an organic electroluminescent display device that further suppresses reflection of external light when viewed in an oblique direction; a phase difference film; and a circularly polarizing plate. This display device has an organic electroluminescent display panel, and a circularly polarizing plate arranged on the display panel, in which the circularly polarizing plate has a polarizer and a phase difference film, the phase difference film has, from a side of the polarizer, a negative A-plate, and a positive A-plate, the in-plane retardation of the negative A-plate at a wavelength of 550 nm is more than 50 nm and less than 90 nm, and the in-plane retardation of the positive A-plate at a wavelength of 550 nm is 100 to 200 nm, and the angle formed by the in-plane slow axis of the negative A-plate and the in-plane slow axis of the positive A-plate is 45°±10°.

    PHOSPHOR-CONTAINING FILM AND BACKLIGHT UNIT
    22.
    发明申请
    PHOSPHOR-CONTAINING FILM AND BACKLIGHT UNIT 审中-公开

    公开(公告)号：US20190194530A1

    公开(公告)日：2019-06-27

    申请号：US16287256

    申请日：2019-02-27

    Applicant: FUJIFILM Corporation

    Inventor： Megumi SEKIGUCHI ,  Tatsuya OBA ,  Kenichi KAKISHITA ,  Masayuki KUSUMOTO ,  Natsuru CHIKUSHI

    IPC: C09K11/02 ,  F21V8/00

    CPC classification number: C09K11/02 ,  C09K11/56 ,  C09K11/70 ,  F21S2/00 ,  G02B5/20 ,  G02B6/005 ,  H01L33/50

    Abstract: A phosphor-containing film contains a phosphor such as a quantum dot and is capable of suppressing deterioration of phosphor even where the film is formed into a laminated structure; and a backlight unit including the phosphor-containing film as a wavelength converting member. The film includes: a phosphor-containing layer in which a plurality of fluorescent regions, each of which contains a phosphor that deteriorates through reaction with oxygen when exposed to oxygen, are discretely arranged and a resin layer having impermeability to oxygen is arranged among the plurality of the discretely arranged fluorescent regions; and a first substrate film and a second substrate film, which are respectively laminated on both main surfaces of the phosphor-containing layer, in which the resin layer has a Knoop hardness of 115 N/mm2 to 285 N/mm2, a creep recovery rate of 22% or less, and an elastic recovery rate of 60% or more.

    PLANAR LIGHT SOURCE, BACKLIGHT UNIT, AND LIQUID CRYSTAL DISPLAY DEVICE
    23.
    发明申请
    PLANAR LIGHT SOURCE, BACKLIGHT UNIT, AND LIQUID CRYSTAL DISPLAY DEVICE 审中-公开

    公开(公告)号：US20190049762A1

    公开(公告)日：2019-02-14

    申请号：US16152801

    申请日：2018-10-05

    Applicant: FUJIFILM Corporation

    Inventor： Takashi YONEMOTO ,  Hirofumi TOYAMA ,  Tatsuya OBA

    IPC: G02F1/13357 ,  G02F1/1335

    Abstract: A thin planar light source, a backlight unit using the same, and a liquid crystal display device using the backlight unit includes: a heat radiation element; a reflective element; an excitation light source; a brightness conversion element; and a wavelength homogenizing element, wherein the excitation light source has a light emitting surface between the reflective element and an emission surface of the planar light source, emits a light having a first wavelength, the wavelength conversion element is positioned between the reflective element and the brightness homogenizing element, is thermally coupled to a heat radiation element, absorbs the light having a first wavelength, and emits light having a wavelength different from the light having a first wavelength, and reflectance of the brightness homogenizing element with respect to light on the excitation light source side has distribution in an in-plane.

    LIGHTING DEVICE
    24.
    发明申请
    LIGHTING DEVICE 审中-公开

    公开(公告)号：US20180314102A1

    公开(公告)日：2018-11-01

    申请号：US16012340

    申请日：2018-06-19

    Applicant: FUJIFILM Corporation

    Inventor： Hirofumi TOYAMA ,  Ryo SATAKE ,  Takashi YONEMOTO ,  Tatsuya OBA ,  Natsuru CHIKUSHI

    IPC: G02F1/1347 ,  G02F1/1335 ,  H01L33/50

    Abstract: There is provided a lighting device using a wavelength conversion sheet used in a liquid crystal display or the like, and an object of the invention is to provide a lighting device having satisfactory durability. The object is achieved by a lighting device including: a point light source; a wavelength conversion sheet; and a light intensity reduction member arranged between the point light source and the wavelength conversion layer, in which the light intensity reduction member reduces peak illuminance of light that is applied by the point light source on a light incident surface of a wavelength conversion sheet by 10% to 80%, and absorbance of light having a wavelength of 450 nm measured by using an integrating sphere is less than 5%.

    LAMINATED FILM
    26.
    发明申请
    LAMINATED FILM 审中-公开

    公开(公告)号：US20180099480A1

    公开(公告)日：2018-04-12

    申请号：US15840417

    申请日：2017-12-13

    Applicant: FUJIFILM Corporation

    Inventor： Masayuki KUSUMOTO ,  Tatsuya OBA ,  Kyohisa UCHIUMI

    IPC: B32B7/02 ,  B32B27/06

    Abstract: The present invention provides a laminated film which has an optically functional layer such as a quantum dot layer and can prevent the optically functional layer from deteriorating due to oxygen or the like. The laminated film is provided with a laminate, in which a gas barrier layer is laminated on at least one surface of the optically functional layer, and a resin layer which covers an end face of the laminate, is formed of a composition containing a compound having at least one polymerizable functional group selected from a (meth)acryloyl group, a vinyl group, a glycidyl group, an oxetane group, and an alicyclic epoxy group in an amount of equal to or greater than 5 parts by mass provided that a total amount of solid contents of the composition is 100 parts by mass, and has an oxygen permeability of equal to or lower than 10 cc/(m2·day·atm).

    OPTICAL FILM, BARRIER FILM, LIGHT CONVERSION MEMBER, BACKLIGHT UNIT, AND LIQUID CRYSTAL DISPLAY DEVICE
    29.
    发明申请
    OPTICAL FILM, BARRIER FILM, LIGHT CONVERSION MEMBER, BACKLIGHT UNIT, AND LIQUID CRYSTAL DISPLAY DEVICE 有权
    光学膜，遮光膜，光转换构件，背光单元和液晶显示装置

    公开(公告)号：US20160161657A1

    公开(公告)日：2016-06-09

    申请号：US15041673

    申请日：2016-02-11

    Applicant: FUJIFILM Corporation

    Inventor： Naoyoshi YAMADA ,  Tatsuya OBA ,  Yukito SAITOH ,  Katsufumi OHMURO ,  Akiko WATANO

    IPC: F21V8/00 ,  G02F1/1335

    CPC classification number: G02B6/005 ,  G02B6/0023 ,  G02F1/1336 ,  G02F1/133615 ,  G02F1/133617 ,  G02F2001/133614

    Abstract: A liquid crystal display device having high transmittance and a high color reproduction region, which includes a backlight unit including a light conversion member; and a liquid crystal cell and in which the light conversion member includes a light conversion layer containing a fluorescent material and an optical film arranged on both surfaces of the light conversion layer, the optical film includes an optical thin film forming an air interface, and a layer directly adjacent to the optical thin film, the liquid crystal display device satisfies n(535)

    Abstract translation: 一种具有高透射率和高色彩再现区域的液晶显示装置，其包括具有光转换构件的背光单元; 和液晶单元，其中所述光转换构件包括含有荧光材料的光转换层和布置在所述光转换层的两个表面上的光学膜，所述光学膜包括形成空气界面的光学薄膜，以及 液晶显示装置满足n（535）

    LED DISPLAY DEVICE
    30.
    发明公开
    LED DISPLAY DEVICE 审中-公开

    公开(公告)号：US20240322096A1

    公开(公告)日：2024-09-26

    申请号：US18735833

    申请日：2024-06-06

    Applicant: FUJIFILM Corporation

    Inventor： Wakahiko KANEKO ,  Wataru MAJIMA ,  Tatsuya OBA

    IPC: H01L33/60 ,  H01L25/16 ,  H01L33/50

    CPC classification number: H01L33/60 ,  H01L25/167 ,  H01L33/505

    Abstract: Provided is an LED display device that can improve utilization efficiency of light with a simple configuration having a small number of components. The LED display device includes an LED array formed by arranging a plurality of light emitting diodes that emit excitation light having a wavelength of less than 420 nm, on a substrate; a color conversion layer; a wavelength-selective reflection layer disposed on a side opposite to the LED array; and an RGB reflection layer disposed on an LED array side with respect to the color conversion layer, in which the color conversion layer is disposed at each of positions corresponding to the light emitting diodes of the LED array, and includes a red color conversion region emitting red light, a green color conversion region emitting green light, and a blue color conversion region emitting blue light, which are excited by the excitation light, and a partition wall that divides each region, a height h of the partition wall is 20 μm or less and a ratio w/h of a width w between partition walls to the height h is 2 or more, the wavelength-selective reflection layer selectively reflects light having a wavelength of the excitation light and is integrally formed at positions corresponding the respective regions, and the RGB reflection layer reflects at least light having a wavelength of 450 nm to 650 nm.

Patent Agency Ranking