公开(公告)号：US20140377528A1

公开(公告)日：2014-12-25

申请号：US14482314

申请日：2014-09-10

Applicant: FUJIFILM Corporation

Inventor： Hajime NAKAYAMA ,  Hirofumi TOYAMA ,  Yuta TAKAHASHI

IPC: G02B1/04 ,  C08J5/18 ,  G02B5/30 ,  C08B3/00 ,  G02F1/13363 ,  G02F1/1335

CPC classification number: G02F1/13363 ,  C08B3/00 ,  C08J5/18 ,  C08J2301/10 ,  G02B1/04 ,  G02B5/305 ,  G02B5/3083 ,  G02F1/133528 ,  G02F1/1393 ,  G02F2001/133531 ,  G02F2001/133637 ,  G02F2001/133638 ,  G02F2202/40 ,  G02F2413/02 ,  Y10T428/1036

Abstract: An optical film is provided and has retardations satisfying relations (1) to (3): 0≦Re(550)≦10  (1); −25≦Rth(550)≦25  (2); and |I|+|II|+|III|+|IV|>0.5(nm)  (3), with definitions: I=Re(450)−Re(550); II=Re(650)−Re(550); III=Rth(450)−Rth(550); and IV=Rth(650)−Rth(550), wherein Re(450), Re(550) and Re(650) are in-plane retardations measured with lights of wavelength of 450, 550 and 650 nm, respectively; and Rth(450), Rth(550) and Rth(650) are retardations in a thickness direction of the optical film, which are measured with lights of wavelength of 450, 550 and 650 nm, respectively.

Abstract translation: 提供了一种光学膜，并且具有满足关系式（1）至（3）的延迟：0＆nlE; Re（550）＆nlE; 10（1）; -25＆nlE; Rth（550）＆nlE; 25（2）; 和| I | + | II | + | III | + | IV |> 0.5（nm）（3），其定义为：I = Re（450）-Re（550） II = Re（650）-Re（550）; III = Rth（450）-Rth（550）; 并且IV = Rth（650）-Rth（550），其中Re（450），Re（550）和Re（650）分别是用波长为450,550和650nm的光测量的面内延迟; 和Rth（450），Rth（550）和Rth（650）分别是在450,550和650nm的波长的光下测量的光学膜的厚度方向的延迟。

公开(公告)号：US20250020991A1

公开(公告)日：2025-01-16

申请号：US18887894

申请日：2024-09-17

Applicant: FUJIFILM Corporation

Inventor： Yujiro YANAI ,  Hirofumi TOYAMA

IPC: G03B21/62 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/137 ,  G03B21/10

Abstract: Provided is a display system for rear projection including a transparent screen where a background is visible, in which visibility of a video can be improved. The display system for rear projection includes: a projection device that emits video light; and a transparent screen on which the video light emitted from the projection device is projected, in which at a point that is positioned on the video light projected on the transparent screen and is closest to a projection opening of the projection device, an angle θ1 between a ray of the video light projected on the point and a normal line of the transparent screen is 30° or more.

公开(公告)号：US20240411217A1

公开(公告)日：2024-12-12

申请号：US18813901

申请日：2024-08-23

Applicant: FUJIFILM Corporation

Inventor： Yujiro YANAI ,  Hirofumi TOYAMA

IPC: G03B21/62 ,  G03B21/20 ,  G03B21/604

Abstract: Provided is a display system for rear projection including a transparent screen where a background is visible, in which visibility of a video can be improved. The display system for rear projection includes: a projection device that emits video light; and a transparent screen on which the video light emitted from the projection device is projected, in which the transparent screen includes a light projection layer that directs the projected video light toward a visible side, a film thickness of the light projection layer is 0.1 μm to 30 μm, an optical axis of the video light emitted from the projection device forms 30° or more with respect to a normal line of the transparent screen, and a specular reflectivity in a surface of the transparent screen on the projection device side is 2% or less.

公开(公告)号：US20230400694A1

公开(公告)日：2023-12-14

申请号：US18453152

申请日：2023-08-21

Applicant: FUJIFILM Corporation

Inventor： Naoyoshi YAMADA ,  Hirofumi TOYAMA ,  Yukito SAITOH

IPC: G02B27/01 ,  G06F3/01 ,  G02B5/30 ,  G02B27/28 ,  G02B27/00

CPC classification number: G02B27/0172 ,  G06F3/013 ,  G02B5/3016 ,  G02B27/283 ,  G02B27/0093 ,  G02B2027/0123

Abstract: Provided is a virtual image display device where a scenery and a video can be displayed to be superimposed on each other and a field of view is wide. The virtual image display device includes: a transparent display; and an optical system that is disposed on a visible side with respect to the transparent display, in which the optical system includes a half mirror and a reflective polarizer, and at least one of the half mirror or the reflective polarizer has an action of a concave mirror.

公开(公告)号：US20230088475A1

公开(公告)日：2023-03-23

申请号：US18050368

申请日：2022-10-27

Applicant: FUJIFILM Corporation

Inventor： Natsuru CHIKUSHI ,  Tatsuya OBA ,  Hirofumi TOYAMA

IPC: C09K11/02 ,  C09K11/70 ,  C09K11/08 ,  C08G75/045 ,  C08K9/02 ,  C08K5/13 ,  G02F1/1335

Abstract: Provided is a polymerizable composition including a quantum dot, a polyfunctional thiol, a polyfunctional (meth)acrylate, and a phenolic compound.

公开(公告)号：US20220326562A1

公开(公告)日：2022-10-13

申请号：US17847390

申请日：2022-06-23

Applicant: FUJIFILM Corporation

Inventor： Takahiro HAYASHI ,  Mitsuyoshi ICHIHASHI ,  Satoshi KUNIYASU ,  Hirofumi TOYAMA

IPC: G02F1/137 ,  G03B21/62

Abstract: The present disclosure provides a transparent screen including two main surfaces, and out of light of which a wavelength incident on one main surface out of the two main surfaces is 532 nm, a half width of a peak observed in a distribution indicating strength with respect to a diffraction angle of a primary diffraction light emitted from the other main surface out of the two main surfaces is 2 degrees or greater.

公开(公告)号：US20220214483A1

公开(公告)日：2022-07-07

申请号：US17701058

申请日：2022-03-22

Applicant: FUJIFILM Corporation

Inventor： Nobuhiko ICHIHARA ,  Hirofumi TOYAMA

IPC: G02B5/30

Abstract: Provided is a new optical element that can be used for various applications. The optical element includes a liquid crystal layer where alignment of a liquid crystal compound is immobilized and a film thickness distribution satisfies 1.1

公开(公告)号：US20200341183A1

公开(公告)日：2020-10-29

申请号：US16925305

申请日：2020-07-09

Applicant: FUJIFILM CORPORATION

Inventor： Takashi YONEMOTO ,  Hirofumi TOYAMA ,  Naoyoshi YAMADA

IPC: F21V8/00 ,  G02F1/13357

Abstract: The backlight unit includes: a light guide that includes an incidence surface and an emission surface facing each other; and a light source portion including a plurality of point light sources that are two-dimensionally arranged to face the incidence surface of the light guide, in which light emitted from the light source portion is incident into the incidence surface of the light guide and emitted from the emission surface, the backlight unit is driven by local dimming in which at least two point light sources among the plurality of point light sources are used as a minimum point lighting unit, the light guide includes a plurality of light advancing direction conversion portions and a plurality of light extraction portions, each of the light advancing direction conversion portions is provided at each of positions on the incidence surface facing the plurality of point light sources and changes an advancing direction of each of light components to a direction in which the light component is guided in the light guide, and each of the light extraction portions is provided per unit region corresponding to the minimum point lighting unit in a state where a density in a peripheral portion of the unit region is set to be higher than a density in a center portion of the unit region and emits the light guided in the light guide.

公开(公告)号：US20190258098A1

公开(公告)日：2019-08-22

申请号：US16401408

申请日：2019-05-02

Applicant: FUJIFILM Corporation

Inventor： Tatsuya OBA ,  Hirofumi TOYAMA ,  Kenichi KAKISHITA

IPC: G02F1/13357

Abstract: A phosphor-containing film suppresses deterioration of a phosphor and generation of luminescent spots and the reduction in luminance, and a backlight unit. The phosphor-containing film includes: a phosphor-containing layer having a resin layer which has oxygen impermeability and discrete concave portions, and fluorescent regions arranged in the concave portions, and a first substrate film laminated on one surface of the phosphor-containing layer and a second substrate film laminated on the opposing surface, in which the fluorescent regions contain the phosphor that deteriorates through a reaction with oxygen, and a binder, the first substrate film includes a support film and an inorganic layer provided on a surface of the support film on a side facing the phosphor-containing layer, the resin layer has a modulus of elasticity of 0.5 to 10 GPa, and a thickness of the bottom of the concave portion of the resin layer is 0.1 to 20 μm.

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.