公开(公告)号：US09644083B2

公开(公告)日：2017-05-09

申请号：US14633868

申请日：2015-02-27

Applicant: FUJIFILM Corporation

Inventor： Nobutaka Fukagawa ,  Yu Naito ,  Mayumi Nojiri ,  Hiroyuki Hagio ,  Aiko Yoshida ,  Hideyuki Nishikawa

IPC: C08L1/12 ,  C08J5/18 ,  G02F1/1335

CPC classification number: C08L1/12 ,  B32B2457/202 ,  C08J5/18 ,  C08J2301/12 ,  C08K5/0008 ,  C08K5/16 ,  G02F1/133528 ,  Y10T428/105 ,  Y10T428/31971 ,  C08L67/00

Abstract: A cellulose acylate film, containing: at least two or more of chelating agents having different pKa values from one another, wherein the chelating agents comprise: a chelating agent A having at least one functional group whose acid dissociation constant pKa, measured at 25° C. in a mixed solvent having a mixing ratio of tetrahydrofuran 60 ml/water 40 ml, is 6 or less; and a chelating agent B having at least one functional group of a conjugate acid whose pKa, measured at the same condition, is 7 or more; and a cellulose acylate, and wherein the number of bright spots of the cellulose acylate film is equal to or less than 500/cm2; a polarizing plate protective film, a polarizing plate and a liquid crystal display using the same.

公开(公告)号：US11860338B2

公开(公告)日：2024-01-02

申请号：US17670921

申请日：2022-02-14

Applicant: FUJIFILM Corporation

Inventor： Akira Maruyama ,  Keisuke Kodama ,  Tetsuro Otsuka ,  Hiroyuki Hagio ,  Yuta Takahashi ,  Shinpei Yoshida ,  Satoshi Yanokuchi

IPC: G02B1/11 ,  G02F1/137 ,  C09K19/04 ,  G02F1/1337 ,  H01J49/40

CPC classification number: G02B1/11 ,  C09K19/04 ,  G02F1/13706 ,  G02F1/13712 ,  G02F1/133711 ,  H01J49/40 ,  C09K2019/0448 ,  G02F2202/022

Abstract: Provided is an optical film with a resin substrate adhered to an optically anisotropic layer and suppression of occurrence of optical defects in the optically anisotropic layer. The optical film has a resin substrate having an alignment regulating force and an optically anisotropic layer arranged thereon, in which the optically anisotropic layer contains a liquid crystal compound and a compound having a heteroatom different from the liquid crystal compound, and in a case where a surface of the optical film on an optically anisotropic layer side thereof is a first surface and a surface of the optical film on a resin substrate side thereof is a second surface, and components of the optical film in a depth direction are analyzed by time-of-flight secondary ion mass spectrometry while irradiating the optical film with an ion beam from the first surface toward the second surface, the obtained profile satisfies a predetermined requirement.

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：US11966008B2

公开(公告)日：2024-04-23

申请号：US17878873

申请日：2022-08-01

Applicant: FUJIFILM Corporation

Inventor： Kazushige Nakagawa ,  Hideyuki Nishikawa ,  Masato Nakao ,  Shunya Katoh ,  Hiroyuki Hagio ,  Yutaka Nozoe ,  Kunihiro Kasezawa ,  Yuki Nakamura

IPC: G02B1/111 ,  C09K19/38 ,  C09K19/56 ,  G02F1/1335 ,  H10K50/86

CPC classification number: G02B1/111 ,  C09K19/3861 ,  C09K19/56 ,  G02F1/133502 ,  H10K50/86

Abstract: The present invention provides an optical film having a liquid crystal layer having excellent durability, and a liquid crystal film. The optical film of the present invention has an organic base material and a liquid crystal layer disposed on the organic base material, the liquid crystal layer contains a photo-alignment compound, and in the liquid crystal layer, the photo-alignment compound is unevenly distributed on a side of the organic base material.

公开(公告)号：US10782567B2

公开(公告)日：2020-09-22

申请号：US15984994

申请日：2018-05-21

Applicant: FUJIFILM Corporation

Inventor： Keita Takahashi ,  Hiroshi Matsuyama ,  Naozumi Shiraiwa ,  Taiji Katsumata ,  Yuuta Fujino ,  Hiroshi Sato ,  Kiyoshi Takeuchi ,  Hiroyuki Hagio ,  Aiko Yoshida ,  Hiroaki Nakatsugawa

IPC: G02F1/1333 ,  G02F1/1337 ,  G02F1/13363 ,  C07C67/14 ,  C09K19/30 ,  C07C67/30 ,  G02B5/30 ,  H01L51/52 ,  C09K19/14 ,  F21V8/00 ,  G02F1/1335 ,  C09K19/04

Abstract: An object of the present invention is to provide an optical film having an optically-anisotropic layer having excellent durability, a polarizing plate and an image display device in which the optical film is used, a polymerizable compound used in the optical film, and a method for manufacturing a 1,4-cyclohexanedicarboxylic acid monoaryl ester. The optical film of the present invention is an optical film having at least an optically-anisotropic layer, in which the optically-anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a polymerizable compound which has a specific structure, a liquid crystal compound which has a specific structure, and a polymerization initiator.

公开(公告)号：US10001584B2

公开(公告)日：2018-06-19

申请号：US15008990

申请日：2016-01-28

Applicant: FUJIFILM Corporation

Inventor： Hiroyuki Hagio ,  Shinichi Ichikawa ,  Masaki Noro ,  Yu Naito ,  Nobutaka Fukagawa ,  Yutaka Nozoe

IPC: G02F1/1335 ,  G02B1/04 ,  G02B5/30 ,  G02B1/14

CPC classification number: G02B1/04 ,  G02B1/14 ,  G02B5/3033 ,  G02F1/133528 ,  Y10T428/105

Abstract: An optical film is provided containing cellulose acylate and at least one type of a compound denoted by the following Formula (I). R1 represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, an acyl group, an alkoxy carbonyl group, a carbamoyl group, an alkyl sulfonyl group, or an aryl sulfonyl group, R2 represents an alkyl group or an aryl group, L represents a single bond or a bivalent or more connecting group, and n represents 1 when L is a single bond and n represents an integer of the valence of L−1 when L is a bivalent or more connecting group. s and t each independently represent 1 to 3, and X represents —O— or —N(Ra)-. Ra represents a hydrogen atom or an alkyl group.