公开(公告)号：US20210341652A1

公开(公告)日：2021-11-04

申请号：US17376731

申请日：2021-07-15

Applicant: FUJIFILM Corporation

Inventor： Hirofumi TOYAMA ,  Tatsuya OBA ,  Takashi YONEMOTO

IPC: G02B5/00 ,  G02F1/13357 ,  B82Y20/00 ,  G02B5/20

Abstract: Provided are a light absorbing material-containing film which contains quantum dots or the like and is capable of suppressing in-plane luminance unevenness and chromaticity unevenness; and a backlight unit. The light absorbing material-containing film includes a light absorbing material-containing layer that has a plurality of cylindrical or polygonal prism-shaped resin portions discretely disposed and a light absorption region contain light absorbing bodies and formed between the plurality of resin portions; a first substrate film that is laminated on one main surface of the light absorbing material-containing layer; and a second substrate film laminated on the other main surface of the light absorbing material-containing layer, where the light absorption region contains at least one phosphor that serves as the light absorbing body, and a binder.

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.

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%.

公开(公告)号：US20170242179A1

公开(公告)日：2017-08-24

申请号：US15591744

申请日：2017-05-10

Applicant: FUJIFILM Corporation

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

IPC: F21V8/00 ,  G02F1/1335

CPC classification number: G02B6/005 ,  G02B6/0055 ,  G02B6/0065 ,  G02F1/133528 ,  G02F1/1336 ,  G02F1/133606 ,  G02F2001/133614 ,  G02F2202/36 ,  H01L33/502

Abstract: The wavelength conversion member includes: a wavelength conversion layer obtained by curing a polymerizable composition including quantum dots that emit fluorescence when excited by excitation light; a barrier layer having a moisture permeability of 0.1 g/(m2·day·atm) or lower that is formed over at least one surface of the wavelength conversion layer; and at least one intermediate layer that is interposed between the wavelength conversion layer and the barrier layer. The at least one intermediate layer includes a gettering agent-containing layer that includes a gettering agent for trapping at least one of water or oxygen.

公开(公告)号：US20170017118A1

公开(公告)日：2017-01-19

申请号：US15277333

申请日：2016-09-27

Applicant: FUJIFILM Corporation

Inventor： Takashi YONEMOTO ,  Yukito SAITOH

IPC: G02F1/1335 ,  F21V8/00 ,  G02F1/13363

Abstract: One embodiment of the present invention relates to a liquid crystal panel including a liquid crystal panel member including a visible side polarizer, a liquid crystal cell, and a backlight side polarizer; and an optical conversion member including an optical conversion layer containing a quantum dot emitting fluorescent light which is excited by incident excitation light, in which the optical conversion member is integrally laminated on a backlight side surface of the liquid crystal panel member, a liquid crystal display device, a polarizing plate, and a polarizing plate protective film.

Abstract translation: 本发明的一个实施例涉及一种液晶面板，包括：液晶面板构件，其包括可见侧偏振片，液晶单元和背光侧偏振片; 以及光转换构件，其包括含有由入射激发光激发的量子点发射荧光的光转换层，其中所述光转换构件整体地层压在所述液晶面板构件的背光侧表面上，液晶显示器 装置，偏振片和偏振片保护膜。

公开(公告)号：US20160349573A1

公开(公告)日：2016-12-01

申请号：US15188363

申请日：2016-06-21

Applicant: FUJIFILM Corporation

Inventor： Katsufumi OHMURO ,  Yukito SAITOH ,  Takashi YONEMOTO ,  Hideyuki NISHIKAWA ,  Yoji ITO

IPC: G02F1/1335 ,  F21V8/00 ,  G02B5/22 ,  G02B5/30 ,  G02B1/14

CPC classification number: G02F1/133617 ,  G02B1/14 ,  G02B5/22 ,  G02B5/26 ,  G02B5/3016 ,  G02B5/3041 ,  G02B5/305 ,  G02B5/3083 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0055 ,  G02B6/0056 ,  G02B6/0073 ,  G02F1/133533 ,  G02F1/1336 ,  G02F1/13362 ,  G02F1/133621 ,  G02F2001/133567 ,  G02F2001/133614 ,  G02F2001/133624 ,  G02F2202/36

Abstract: Provided are an optical sheet member including an optical conversion sheet containing a fluorescent material which absorbs at least a part of light in a wavelength range of 380 nm to 480 nm, converts the absorbed light into light in a wavelength range longer than that of the absorbed light, and re-emits the converted light, and a wavelength selective reflective polarizer functioning in the wavelength range of at least a part of the light in the wavelength range of 380 nm to 480 nm, in which both of front brightness and a color reproduction range are improved in a case of being incorporated into a display device using backlight which emits light having at least a blue wavelength range; and the display device.

Abstract translation: 提供了一种光学片构件，其包括含有吸收380nm至480nm波长范围内的至少一部分光的荧光材料的光学转换片，将吸收的光转换成比被吸收的光的波长更长的波长的光 光和再发射转换的光，以及在380nm至480nm的波长范围内的至少一部分光的波长范围内起作用的波长选择性反射偏振器，其中前亮度和彩色再现 在使用发射具有至少蓝色波长范围的光的背光的显示装置的情况下，改进了范围; 和显示装置。

公开(公告)号：US20160018578A1

公开(公告)日：2016-01-21

申请号：US14867072

申请日：2015-09-28

Applicant: FUJIFILM CORPORATION

Inventor： Takashi YONEMOTO ,  Naoyoshi YAMADA ,  Hiromichi FURUKAWA ,  Ryuji SANETO ,  Kazuya HISANAGA

IPC: G02B5/30 ,  G02B1/14

CPC classification number: G02B5/305 ,  B32B7/12 ,  B32B2307/42 ,  B32B2307/51 ,  B32B2457/20 ,  G02B1/14 ,  G02F1/0072 ,  G02F1/133528 ,  G02F2201/50

Abstract: A polarization plate includes a polarizer having polarization performance; a first protective film bonded to one surface of the polarizer through an adhesive layer 1; and a second protective film bonded to the other surface of the polarizer through an adhesive layer 2, in which a modulus of elasticity of the first protective film at 25° C. and relative humidity of 60% in an absorption axis direction of the polarizer is greater than or equal to 1.0 GPa and less than 4.0 GPa, a ratio of the modulus of elasticity of the first protective film at 25° C. and relative humidity of 60% in the absorption axis direction of the polarizer to a modulus of elasticity of the first protective film at 25° C. and relative humidity of 60% in a direction orthogonal to the absorption axis of the polarizer is less than or equal to 0.8, a modulus of elasticity of the second protective film at 25° C. and relative humidity of 60% in the absorption axis direction of the polarizer is greater than or equal to 2.0 GPa and less than 5.0 GPa, and (Expression 1) and (Expression 2) described below are satisfied, suppresses curling of the polarizer in the absorption axis direction (d1 and d2 are thicknesses of the first protective film and the second protective film (unit: μm)). d2/d1≦0.8;  (Expression 1) d2≦40 μm  (Expression 2)

Abstract translation: 偏振板包括具有偏振性能的偏振器; 通过粘合层1与偏振片的一个表面结合的第一保护膜; 以及第二保护膜，其通过粘合剂层2粘合到偏振片的另一个表面上，其中第一保护膜在25℃和相对湿度为60％的偏振器的吸收轴方向上的弹性模量为 大于或等于1.0GPa且小于4.0GPa，第一保护膜在25℃下的弹性模量与偏振片的吸收轴方向的相对湿度为60％的比率与弹性模量的比值 在与偏振器的吸收轴正交的方向上，25℃，相对湿度60％的第一保护膜小于或等于0.8，第二保护膜在25℃下的弹性模量和相对湿度 在偏振器的吸收轴方向上的湿度为60％大于或等于2.0GPa且小于5.0GPa，并且满足下述（表达式1）和（表达式2），抑制偏振器在吸收轴中的卷曲 directio n（d1和d2是第一保护膜和第二保护膜的厚度（单位：μm））。 d2 / d1＆nlE; 0.8; （表达式1）d2＆nlE;40μm（表达式2）