公开(公告)号：US20230176252A1

公开(公告)日：2023-06-08

申请号：US18162359

申请日：2023-01-31

Applicant: FUJIFILM Corporation

Inventor： Yuta FUKUSHIMA ,  Shinpei YOSHIDA ,  Yuta TAKAHASHI ,  Keisuke KODAMA

IPC: G02B1/111 ,  G02B5/30

CPC classification number: G02B1/111 ,  G02B5/3016 ,  H10K59/8791

Abstract: The present invention provides an optically anisotropic layer which has a plurality of regions in which alignment states of a liquid crystal compound are different in a thickness direction and in which peeling is unlikely to occur in the layer. The optically anisotropic layer of the present invention is an optically anisotropic layer formed of a liquid crystal compound, in which the optically anisotropic layer contains a leveling agent and satisfies a predetermined requirement in a profile of a secondary ion intensity derived from the leveling agent in a depth direction, which is obtained by analyzing components of the optically anisotropic layer in a depth direction by time-of-flight secondary ion mass spectrometry while irradiating the optically anisotropic layer with an ion beam from one surface of the optically anisotropic layer to the other surface of the optically anisotropic layer.

公开(公告)号：US20220397712A1

公开(公告)日：2022-12-15

申请号：US17824536

申请日：2022-05-25

Applicant: FUJIFILM Corporation

Inventor： Yuta TAKAHASHI ,  Yusuke FURUKI ,  Toshihiro KONISHI ,  Hiroki KUWAHARA

IPC: G02B5/30

Abstract: Provided are a phase difference film that has a small change in tint in a case where the phase difference film is combined with a polarizer and then applied as a circularly polarizing plate to a display device, and the display device is observed from an oblique direction at all azimuthal angles; as well as a circularly polarizing plate and a display device. The phase difference film includes a first optically anisotropic layer, a second optically anisotropic layer, a third optically anisotropic layer, and a fourth optically anisotropic layer in this order, in which the first optically anisotropic layer is a C-plate, the second optically anisotropic layer is an A-plate, the third optically anisotropic layer is a layer formed by fixing a liquid crystal compound twist-aligned along a helical axis extending in a thickness direction, and the first, second third, and fourth optically anisotropic layers have a predetermined configuration.

公开(公告)号：US20160231606A1

公开(公告)日：2016-08-11

申请号：US15133592

申请日：2016-04-20

Applicant: FUJIFILM Corporation

Inventor： Hajime NAKAYAMA ,  Hirofumi TOYAMA ,  Yuta TAKAHASHI

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

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): (1) 0≦Re(550)≦10; (2) −25≦Rth(550)≦25; and (3) |I|+|II|+|III|+|IV|>0.5 (nm), 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: 提供一种光学膜，并具有满足关系式（1）至（3）的延迟：（1）0≤Re（550）≤10; （2）-25≤Rth（550）≤25; 和（3）| I | + | II | + | III | + | IV |> 0.5（nm），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：US20140055732A1

公开(公告)日：2014-02-27

申请号：US14070773

申请日：2013-11-04

Applicant: FUJIFILM Corporation

Inventor： Hajime NAKAYAMA ,  Hirofumi TOYAMA ,  Yuta TAKAHASHI

IPC: G02F1/13363

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; and  (2) |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，并具有满足关系式（1）至（3）的延迟：0 @ Re（550）@ 10;（1）-25 @ Rth（550）@ 25; 和（2）| I | + | II | + | III | + | IV |> 0.5（nm），（3）具有定义：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：US20240427208A1

公开(公告)日：2024-12-26

申请号：US18828773

申请日：2024-09-09

Applicant: FUJIFILM Corporation

Inventor： Shinpei YOSHIDA ,  Yuta TAKAHASHI ,  Kentaro YAMURA ,  Keisuke KODAMA

IPC: G02F1/137 ,  G02F1/1333 ,  G02F1/13363 ,  G02F1/1337

Abstract: An optically anisotropic layer formed of a liquid crystal compound, having first and second layers in direct contact with different alignment states, the first layer is formed by fixing an alignment state of the liquid crystal compound in homogeneous alignment, and the second layer in homeotropic alignment, and the optically anisotropic layer satisfies a relationship of Expression (2A) Xmax/Xmin

公开(公告)号：US20240118474A1

公开(公告)日：2024-04-11

申请号：US18511449

申请日：2023-11-16

Applicant: FUJIFILM Corporation

Inventor： Yuta TAKAHASHI ,  Yusuke FURUKI ,  Hiroki KUWAHARA

IPC: G02B5/30

CPC classification number: G02B5/3016

Abstract: A phase difference film includes a small change in tint when the film is applied to a display device as a circularly polarizing plate in combination with a polarizer display device being observed from an oblique direction at all azimuthal angles. The film includes optically anisotropic layers X, Y, and Z in this order, in which layer X is an A-plate, and layers Y and Z are formed by fixing a first and second liquid crystal compound, respectively, twist-aligned along a helical axis extending in a thickness direction, one of the first and second liquid crystal compounds are rod-like liquid crystal compounds, the other first and the second liquid crystal compounds are disk-like liquid crystal compounds, and an in-plane slow axis of layer X is parallel to an in-plane slow axis on a surface of layer Y on layer X side.

公开(公告)号：US20230204838A1

公开(公告)日：2023-06-29

申请号：US18169689

申请日：2023-02-15

Applicant: FUJIFILM Corporation

Inventor： Yuta TAKAHASHI ,  Shinpei YOSHIDA

IPC: G02B5/30

CPC classification number: G02B5/3016

Abstract: Provided is an optical film in which black tinting is suppressed in front and oblique directions when the optical film is used as a circularly polarizing plate in an organic EL display device. The optical film is an elongated optical film having optically anisotropic layers (A), (B), and (C), in this order, in which layer (A) is formed by fixing a vertically aligned disk-like liquid crystal compound, layer (B) is formed by fixing a twist-aligned rod-like liquid crystal compound with a thickness direction as a helical axis, layer (C) is formed by fixing a vertically aligned rod-like liquid crystal compound, an in-plane slow axis of layer (A) is parallel to an in-plane slow axis on a surface of layer (B) on a layer (A) side, and layers (A) and (B) are disposed such that the in-plane slow axes thereof satisfy a predetermined positional relationship.

公开(公告)号：US20230194763A1

公开(公告)日：2023-06-22

申请号：US18169687

申请日：2023-02-15

Applicant: FUJIFILM Corporation

Inventor： Yuta TAKAHASHI ,  Shinpei YOSHIDA

IPC: G02B5/30

CPC classification number: G02B5/3016 ,  G02B5/305

Abstract: Provided is an optical film having excellent adhesiveness; a circularly polarizing plate; and an organic EL display device. The optical film has three layers of an optically anisotropic layer (A), an optically anisotropic layer (B), and an optically anisotropic layer (C), each of which is formed by fixing an aligned liquid crystal compound, in which at least one of the optically anisotropic layer (A) or the optically anisotropic layer (B) is directly laminated with the optically anisotropic layer (C), the optically anisotropic layer (C) is a layer that contains a photo-alignment polymer having a photo-alignment group and is formed by fixing a vertically aligned rod-like liquid crystal compound or a horizontally aligned disk-like liquid crystal compound, and the photo-alignment polymer is present on the surface of the optically anisotropic layer (C) in contact with the optically anisotropic layer (A) or the optically anisotropic layer (B).

公开(公告)号：US20220204855A1

公开(公告)日：2022-06-30

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 ,  C09K19/20 ,  G02B5/30 ,  H01L51/52

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：US20150309348A1

公开(公告)日：2015-10-29

申请号：US14792835

申请日：2015-07-07

Applicant: FUJIFILM Corporation

Inventor： Hajime NAKAYAMA ,  Hirofumi TOYAMA ,  Yuta TAKAHASHI

IPC: G02F1/13363 ,  G02B5/30

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; and  (2) |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; 和（2）| I | + | II | + | III | + | IV |> 0.5（nm），（3）具有定义：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。