公开(公告)号：US12135431B2

公开(公告)日：2024-11-05

申请号：US18453152

申请日：2023-08-21

Applicant: FUJIFILM Corporation

Inventor： Naoyoshi Yamada ,  Hirofumi Toyama ,  Yukito Saitoh

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

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：US11914172B2

公开(公告)日：2024-02-27

申请号：US17376731

申请日：2021-07-15

Applicant: FUJIFILM Corporation

Inventor： Hirofumi Toyama ,  Tatsuya Oba ,  Takashi Yonemoto

IPC: G02B5/00 ,  B82Y20/00 ,  G02B5/20 ,  G02B5/02 ,  G02F1/1335 ,  G02F1/13357

CPC classification number: G02B5/003 ,  B82Y20/00 ,  G02B5/20 ,  G02B5/0242 ,  G02F1/133603 ,  G02F1/133606 ,  G02F1/133611 ,  G02F1/133614

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：US11740506B2

公开(公告)日：2023-08-29

申请号：US16902590

申请日：2020-06-16

Applicant: FUJIFILM Corporation

Inventor： Akiko Watano ,  Tatsuya Oba ,  Hirofumi Toyama ,  Takashi Yonemoto

IPC: H01L33/50 ,  G02F1/13357 ,  G02F1/1335

CPC classification number: G02F1/133603 ,  H01L33/504 ,  C09K2323/035 ,  G02F1/133507 ,  G02F1/133602 ,  G02F1/133605 ,  G02F1/133614

Abstract: 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：US11131800B2

公开(公告)日：2021-09-28

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 ,  G02F1/1335

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：US09971068B2

公开(公告)日：2018-05-15

申请号：US15083835

申请日：2016-03-29

Applicant: FUJIFILM Corporation

Inventor： Jun Ishiyama ,  Masaki Hachiya ,  Hirofumi Toyama

IPC: G02B5/30 ,  B32B7/10 ,  G02B1/14

CPC classification number: G02B1/14 ,  B32B7/10 ,  G02B5/305

Abstract: There is provided a cellulose acylate film including a core layer and a skin layer, in which a mixed layer is formed between the core layer and the skin layer, wherein a cellulose acylate included in the core layer has an average acyl substitution degree S2 of 2.00 to 2.55, a cellulose acylate included in the skin layer has an average acyl substitution degree S3 of 2.60 to 2.95, and an average acyl substitution degree S1 of the cellulose acylate of the mixed layer satisfies Equation (A1), and the mixed layer has a thickness of 100 nm to 300 nm: Equation (A1): S2+0.05×(S3−S2)