公开(公告)号：US10649325B2

公开(公告)日：2020-05-12

申请号：US15466331

申请日：2017-03-22

Applicant: FUJIFILM Corporation

Inventor： Mitsuyoshi Ichihashi ,  Akihiro Anzai ,  Shunya Katoh

IPC: G02B27/01 ,  G02F1/13363 ,  G02F1/1347 ,  G03B21/604 ,  B60K35/00 ,  G03B21/62 ,  H04N9/31 ,  G02B5/30 ,  G02B5/26

Abstract: The present invention provides a member for displaying a projected image and a projected image display system in which a clear image can be displayed with high reflectivity and high transmittance without a double image, the member for displaying a projected image including a reflection layer, and a λ/2 phase difference layer, in which the reflection layer includes a cholesteric liquid crystal layer having selective reflection in a visible light range, and the projected image display system including the member for displaying a projected image, in which the λ/2 phase difference layer is disposed on an incidence ray side with respect to the reflection layer, and the incidence ray is p-polarized light which vibrates in a direction parallel to an incidence surface.

公开(公告)号：US10647802B2

公开(公告)日：2020-05-12

申请号：US16366343

申请日：2019-03-27

Applicant: FUJIFILM Corporation

Inventor： Shunya Katoh ,  Masaru Yoshikawa ,  Masaaki Suzuki

IPC: C08F220/28 ,  C08F230/06 ,  C08F220/34 ,  C08F220/58 ,  C08F220/56 ,  C08F220/30 ,  C08F212/14 ,  C08F12/34 ,  C08F12/22 ,  C08F222/22 ,  C08F212/12 ,  G02B5/30 ,  C08F222/10

Abstract: An object of the present invention is to provide a polymer compound capable of improving adhesiveness between a hydrophobic member and a hydrophilic member. The polymer compound of the present invention is a polymer compound having a repeating unit represented by Formula (I) and a repeating unit represented by Formula (II).

公开(公告)号：US20190235243A1

公开(公告)日：2019-08-01

申请号：US16383207

申请日：2019-04-12

Applicant: FUJIFILM Corporation

Inventor： Akihiro ANZAI ,  Shunya Katoh

IPC: G02B27/01 ,  G02B5/30 ,  G02F1/1335 ,  G03B21/20

CPC classification number: G02B27/0101 ,  G02B5/3025 ,  G02F1/133536 ,  G03B21/2073

Abstract: A head-up display system includes: a projection image display portion; a circularly polarized light reflection layer and a λ/2 retardation layer which are included in the projection image display portion in which the circularly polarized light reflection layer includes four or more cholesteric liquid crystal layers and one layer of the four or more cholesteric liquid crystal layers has a center wavelength of selective reflection at 350 nm or more and less than 490 nm, the windshield glass; and a projector.

公开(公告)号：US12252642B2

公开(公告)日：2025-03-18

申请号：US17698775

申请日：2022-03-18

Applicant: FUJIFILM Corporation

Inventor： Keisuke Kodama ,  Yuko Suzuki ,  Shunya Katoh

IPC: C09K19/20 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1337 ,  G02F1/137

Abstract: An object of the present invention is to provide a method for producing a cholesteric liquid crystal layer, which is capable of freely controlling a tilt angle of an arrangement direction of bright portion and dark portion derived from a cholesteric liquid crystalline phase with respect to a normal line of a main surface of the cholesteric liquid crystal layer; a cholesteric liquid crystal layer; an optically anisotropic body; and a reflective film.
The method for producing a cholesteric liquid crystal layer according to the present invention includes a step X of forming a cholesteric liquid crystal layer A in which a liquid crystal compound is aligned into a state of a cholesteric liquid crystalline phase, satisfying all of the conditions 1 to 3, and a step Y of carrying out a treatment to increase or decrease a helical pitch of the cholesteric liquid crystalline phase in the cholesteric liquid crystal layer A obtained by the step X to increase or decrease a tilt angle of an arrangement direction of bright portion and dark portion derived from the cholesteric liquid crystalline phase, as observed in a cross-section perpendicular to a main surface of the cholesteric liquid crystal layer A, with respect to a normal direction of the main surface of the cholesteric liquid crystal layer A.

公开(公告)号：US12091603B2

公开(公告)日：2024-09-17

申请号：US17697519

申请日：2022-03-17

Applicant: FUJIFILM Corporation

Inventor： Hiroshi Inada ,  Shunya Katoh ,  Yuki Nakamura ,  Yuko Suzuki

IPC: C09K19/20 ,  C09K19/30 ,  C09K19/34 ,  G02B5/30

CPC classification number: C09K19/2007 ,  C09K19/3068 ,  C09K19/3405 ,  C09K19/3491 ,  C09K19/3497 ,  G02B5/3016 ,  G02B5/3025 ,  C09K2019/2035 ,  C09K2019/2078

Abstract: A liquid crystal composition containing a liquid crystal compound and a non-liquid crystal compound, in which both of the liquid crystal compound and the non-liquid crystal compound are compounds having any of aromatic rings selected from the group consisting of groups represented by predetermined formulae, and a ratio of a molecular weight of the non-liquid crystal compound to a molecular weight of the liquid crystal compound is 1 or less.

公开(公告)号：US12078761B2

公开(公告)日：2024-09-03

申请号：US17105632

申请日：2020-11-27

Applicant: FUJIFILM Corporation

Inventor： Shunya Katoh ,  Naoyuki Morooka

IPC: G01S7/499 ,  G01S17/08 ,  G01S17/58 ,  G02B5/126 ,  G02B5/26 ,  G02B5/30

CPC classification number: G01S7/499 ,  G01S17/08 ,  G01S17/58 ,  G02B5/126 ,  G02B5/26 ,  G02B5/3016

Abstract: An object of the present invention is to provide a signal detection system capable of removing noise caused by scattered light or the like and capable of detecting an accurate signal. The problems can be solved by providing a signal detection system including an emitting unit that emits polarized light as measurement light, a retroreflection member that retroreflects the measurement light, and a detecting unit that detects the retroreflected measurement light, in which in the retroreflection member, a reflectance of first polarized light is higher than a reflectance of second polarized light which is polarized light having a property opposite to that of the first polarized light, and at least one of a first condition in which in the measurement light emitted from the emitting unit, an intensity of the first polarized light is higher than an intensity of the second polarized light, or a second condition in which in the detecting unit, a detection sensitivity of the first polarized light is higher than a detection sensitivity of the second polarized light is satisfied.

公开(公告)号：US12037530B2

公开(公告)日：2024-07-16

申请号：US17889523

申请日：2022-08-17

Applicant: FUJIFILM Corporation

Inventor： Yuki Fukushima ,  Keisuke Kodama ,  Shunya Katoh

IPC: G02F1/1333 ,  C09K19/16 ,  C09K19/20

CPC classification number: C09K19/2007 ,  C09K19/16 ,  C09K2019/168 ,  C09K2019/2042 ,  C09K2019/2078

Abstract: The present invention provides a compound having an excellent amount of change in HTP and an excellent HTP saturation rate during exposure, and a liquid crystal composition including the compound. The compound of the present invention is a compound represented by General Formula (A).

(Y)n-G-(X)m   (A)

G represents a group represented by General Formula (B-1) or a group represented by General Formula (B-2), * represents a bonding position, and X and Y represent a predetermined group.

公开(公告)号：US11852940B2

公开(公告)日：2023-12-26

申请号：US18067250

申请日：2022-12-16

Applicant: FUJIFILM Corporation

Inventor： Takashi Yonemoto ,  Yukito Saitoh ,  Hiroshi Sato ,  Yuki Fukushima ,  Mitsuyoshi Ichihashi ,  Keisuke Kodama ,  Shunya Katoh ,  Naoto Yanase

IPC: G02F1/137 ,  G02B5/30

CPC classification number: G02F1/13706 ,  G02B5/3016

Abstract: An optically anisotropic film is formed of a liquid crystal composition including a liquid crystal compound and 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 of the optically anisotropic film, and the optically anisotropic film satisfies predetermined requirements.

公开(公告)号：US11834600B2

公开(公告)日：2023-12-05

申请号：US17670906

申请日：2022-02-14

Applicant: FUJIFILM Corporation

Inventor： Keisuke Kodama ,  Yuki Fukushima ,  Shunya Katoh ,  Yuta Takahashi ,  Shinpei Yoshida ,  Satoshi Yanokuchi ,  Akira Maruyama ,  Hiroyuki Hagio

IPC: C09K19/58 ,  G02B5/30 ,  H10K50/86 ,  C09K19/20

CPC classification number: C09K19/588 ,  C09K19/2007 ,  G02B5/3016 ,  H10K50/86 ,  C09K2019/2078

Abstract: Provided is a liquid crystal composition capable of forming an optically anisotropic layer, and method thereof, in which a variation in a twisted angle of liquid crystal compound in an in-plane direction is suppressed an optical film, and a circularly polarizing plate for an organic EL display. The liquid crystal composition contains a liquid crystal, optically active compound A which is a photosensitive optically active compound whose helical twisting power changes upon irradiation with light and has a molar absorption coefficient of 5,000 M−1·cm−1 or more with respect to light having a wavelength of 365 nm, and an optically active compound B having a molar absorption coefficient with respect to light having a wavelength of 365 nm smaller than the molar absorption coefficient of the optically active compound A, in which a mass content ratio of the optically active compound A to the liquid crystal compound is less than 0.01.

公开(公告)号：US11513395B1

公开(公告)日：2022-11-29

申请号：US17828540

申请日：2022-05-31

Applicant: FUJIFILM Corporation

Inventor： Keisuke Kodama ,  Yujiro Yanai ,  Takeharu Tani ,  Shunya Katoh

IPC: G02F1/13363 ,  G02F1/137 ,  G01J1/04

Abstract: Provided are a bandpass filter having a high light transmittance in a transmission band and a wide wavelength range showing a high transmittance in the transmission band, and a sensor. The bandpass filter is a bandpass filter including a reflective member A and a reflective member B, in which a difference between a reflection center wavelength of the reflective member A and a reflection center wavelength of the reflective member B is larger than a sum of a half width at half maximum of a reflection band of the reflective member A and a half width at half maximum of a reflection band of the reflective member B; the reflective member A has a first cholesteric liquid crystal layer and a second cholesteric liquid crystal layer, and birefringence Δn1 of the first cholesteric liquid crystal layer is larger than birefringence Δn2 of the second cholesteric liquid crystal layer; and the reflective member B has a third cholesteric liquid crystal layer and a fourth cholesteric liquid crystal layer, and birefringence Δn3 of the third cholesteric liquid crystal layer is larger than birefringence Δn4 of the fourth cholesteric liquid crystal layer.