公开(公告)号：US20220334299A1

公开(公告)日：2022-10-20

申请号：US17853282

申请日：2022-06-29

Applicant: FUJIFILM Corporation

Inventor： Yasukazu KUWAYAMA ,  Fumitake MITOBE ,  Yuzo FUJIKI ,  Jun TAKEDA

IPC: G02B5/30

Abstract: The present invention provides a polarizing element which has an excellent antireflection function as being applied to an image display device; and a circularly polarizing plate and an image display device, each of which has a polarizing element. The polarizing element has an alignment film and an anisotropic light-absorbing film formed using a dichroic substance, in which a degree S of alignment of the anisotropic light-absorbing film is 0.92 or more, an average refractive index nave at a wavelength of 400 to 700 nm of the alignment film is 1.55 or more and less than 1.78, an in-plane refractive index anisotropy Δn at a wavelength of 550 nm of the alignment film is less than 0.10.

公开(公告)号：US20210003884A1

公开(公告)日：2021-01-07

申请号：US17026773

申请日：2020-09-21

Applicant: FUJIFILM Corporation

Inventor： Wataru HOSHINO ,  Hiroshi MATSUYAMA ,  Jun TAKEDA

IPC: G02F1/1335 ,  G02B5/30

Abstract: An object of the present invention is to provide a polarizer, a method of producing a polarizer, a laminate, and an image display device which enable achievement of both the degree of alignment and light fastness. The polarizer of the present invention is a polarizer formed of a polarizer-forming composition which contains a liquid crystal compound and a dichroic material, in which the liquid crystal compound is a polymer compound having a smectic liquid crystallinity.

公开(公告)号：US20200018879A1

公开(公告)日：2020-01-16

申请号：US16582372

申请日：2019-09-25

Applicant: FUJIFILM Corporation

Inventor： Yumi KATOU ,  Shinichi MORISHIMA ,  Wataru HOSHINO ,  Jun TAKEDA ,  Kengo SAITO ,  Yuzo FUJIKI

IPC: G02B5/30 ,  G02F1/1335 ,  G02F1/1337 ,  C09K19/60 ,  C09K19/38 ,  C09B31/20 ,  C09B31/153 ,  C09B31/043

Abstract: An object of the invention is to provide an anisotropic light absorption film having both a high alignment degree and high light resistance, and a laminate provided using the anisotropic light absorption film. An anisotropic light absorption film according to the embodiment of the invention is formed from a composition having a first dichroic azo dye, a second dichroic azo dye, and a compound represented by Formula (I) or a polymer thereof, the first dichroic azo dye has a solution absorption maximum wavelength of 400 nm or greater and less than 550 nm, the second dichroic azo dye has a solution absorption maximum wavelength of 550 nm or greater and 750 nm or less, and the film has an arrangement structure of the first dichroic azo dye or an arrangement structure of the second dichroic azo dye therein.

公开(公告)号：US20190250457A1

公开(公告)日：2019-08-15

申请号：US16391875

申请日：2019-04-23

Applicant: FUJIFILM Corporation

Inventor： Naoya NISHIMURA ,  Jun TAKEDA

IPC: G02F1/1335 ,  B32B27/30 ,  G02B5/30

CPC classification number: G02F1/133528 ,  B32B7/02 ,  B32B27/30 ,  B32B27/306 ,  G02B5/30 ,  G02B5/305 ,  G02F2001/133531

Abstract: The present invention provides an optical film which has excellent light resistance and durability, while being suppressed in the occurrence of internal reflection and a liquid crystal display device. An optical film according to the present invention includes a light absorption anisotropic layer having at least one dichroic dye compound, and a protective layer that is adjacent to the light absorption anisotropic layer, and the light absorption anisotropic layer and the protective layer satisfy a specific relational expression.

公开(公告)号：US20190064587A1

公开(公告)日：2019-02-28

申请号：US16170746

申请日：2018-10-25

Applicant: FUJIFILM Corporation

Inventor： Fumitake MITOBE ,  Jun TAKEDA ,  Yasukazu KUWAYAMA ,  Yuya HAMAGUCHI

IPC: G02F1/1335 ,  G02F1/13363

Abstract: A method for manufacturing a polarizing plate capable having excellent appearance properties and including a polarizer, an optical rotatory layer, and a brightness enhancement film, a polarizing plate, and a liquid crystal display device including the polarizing plate, are described. The method includes forming an optical rotatory layer, which has a film thickness of 10 μm or less and rotates a polarization axis of linearly polarized light, on a temporary support to manufacture a temporary support with an optical rotatory layer; bonding the optical rotatory layer of the temporary support with an optical rotatory layer and polarizer through a curable adhesive layer, and curing the curable adhesive layer to form a first bonding layer having a storage elastic modulus of 2 to 1500 MPa; peeling off the temporary support from the laminate; and bonding the optical rotatory layer of the laminate and a brightness enhancement film through a second bonding layer.

公开(公告)号：US20150015833A1

公开(公告)日：2015-01-15

申请号：US14499880

申请日：2014-09-29

Applicant: FUJIFILM Corporation

Inventor： Jun TAKEDA ,  Taku WAKITA ,  Takashi TAMADA

IPC: G02F1/1335 ,  B29D7/01 ,  B29C55/00 ,  G02B5/30 ,  C08L1/10

CPC classification number: G02F1/133528 ,  B29C41/24 ,  B29C55/005 ,  B29C55/06 ,  B29C55/08 ,  B29C55/12 ,  B29D7/01 ,  B29K2001/08 ,  B29K2001/12 ,  B29L2007/00 ,  C08L1/10 ,  G02B5/3033 ,  G02B5/3083

Abstract: A cellulose acylate film that contains at least one kind of cellulose acylate that has a substitution degree of an acyl group that contains an aromatic group of from 0.1 to 2.0, or a substitution degree of an acyl group having from 2 to 4 carbon atoms of from 2.0 to 2.6, and has an in-plane retardation at a wavelength of 550 nm Re(550) of from 80 to 350 nm, and the number of bright spots caused from irregular retardation regions having a major axis diameter of from 0.01 to 0.05 mm of 500 or less per 1 cm2 causes less light leakage irrespective of Re of 80 nm or more, so as to enhance the display capability of IPS type and FFS type liquid crystal display devices.

Abstract translation: 一种纤维素酰化物膜，其含有至少一种酰化物的酰化物的取代度为含有0.1〜2.0的芳香族基团的酰基或具有2〜4个碳原子的酰基的取代度， 2.0〜2.6，并且在550nm的Re（550）为550〜350nm的波长的面内相位差，以及由长轴径为0.01〜0.05mm的不规则延迟区域引起的亮点数 500或更小的每1cm 2会导致较少的漏光，而不考虑80nm以上的Re，从而提高IPS型和FFS型液晶显示装置的显示能力。

公开(公告)号：US20210173135A1

公开(公告)日：2021-06-10

申请号：US17177547

申请日：2021-02-17

Applicant: FUJIFILM Corporation

Inventor： Naoya SHIBATA ,  Jun TAKEDA ,  Yuta FUKUSHIMA ,  Ayako MURAMATSU

IPC: G02B5/30 ,  C09D183/04 ,  C08F116/06 ,  H01L51/52

Abstract: The present invention provides a laminate used in an image display device the laminate including an optically anisotropic layer, a light-absorbing anisotropic layer, a refractive index-adjusting layer, and an oxygen shielding layer in this order, where the light-absorbing anisotropic layer is formed of a composition containing dichroic azo coloring agent and liquid crystalline compounds, where the dichroic azo coloring agent compound is 10% to 30% by mass with respect to a mass of a total solid content of the light-absorbing anisotropic layer, a degree of alignment of the light-absorbing anisotropic layer is 0.92 or higher, the refractive index-adjusting layer is formed of a composition containing a crosslinkable group compound, and has an in-plane average refractive index of 1.55 to 1.70 (550 nm λ), and an angle formed by an in-plane slow axis of the optically anisotropic layer and an absorption axis of the light-absorbing anisotropic layer is 45°±10°.

公开(公告)号：US20200033521A1

公开(公告)日：2020-01-30

申请号：US16587717

申请日：2019-09-30

Applicant: FUJIFILM Corporation

Inventor： Yasukazu KUWAYAMA ,  Fumitake MITOBE ,  Yuzo FUJIKI ,  Jun TAKEDA

IPC: G02B5/30 ,  G02F1/1335 ,  C09K19/56 ,  G09F13/00

Abstract: An object of the present invention is to provide a polarizing element which has an excellent antireflection function as being applied to an image display device; and a circularly polarizing plate and an image display device, each of which has the polarizing element. The polarizing element of an embodiment of the present invention has an alignment film and an anisotropic light-absorbing film formed using a dichroic substance, in which a degree S of alignment of the anisotropic light-absorbing film is 0.92 or more, and an average refractive index nave at a wavelength of 400 to 700 nm of the alignment film is 1.55 to 2.0.

公开(公告)号：US20190041270A1

公开(公告)日：2019-02-07

申请号：US16146131

申请日：2018-09-28

Applicant: FUJIFILM Corporation

Inventor： Yujiro YANAI ,  Jun TAKEDA ,  Michio NAGAI ,  Akira YAMAMOTO

IPC: G01J4/04 ,  H01L27/146 ,  G02B5/30 ,  G01N21/21

Abstract: An object of the invention is to provide an optical laminated film capable of detecting a light polarization state with a simple configuration using components which are superior in productivity and have high versatility, and a polarization imaging sensor using the optical laminated film. An optical laminated film includes: first and second phase difference plates, each having a patterned optical anisotropic layer; and a polarizing plate having a polarization axis in one direction, the patterned optical anisotropic layers have a constant phase difference, are divided into a plurality of belt-like regions in the same plane, and have a plurality of units, each formed of the plurality of belt-like regions in which slow axis directions in one belt-like region coincide with each other, and slow axis directions in the respective belt-like regions are all different, and the first phase difference plate, the second phase difference plate, and the polarizing plate are laminated in this order such that the belt-like regions of the two phase difference plates intersect with each other.

公开(公告)号：US20180267341A1

公开(公告)日：2018-09-20

申请号：US15986967

申请日：2018-05-23

Applicant: FUJIFILM Corporation

Inventor： Nobuyuki AKUTAGAWA ,  Jun TAKEDA

IPC: G02F1/13 ,  B32B7/02 ,  B32B27/18 ,  B32B27/30 ,  B32B17/10 ,  B32B27/36 ,  B65H18/28 ,  C09K19/56 ,  C09K19/58 ,  C09K19/50

Abstract: Provided are: an infrared control film in which an infrared light transmittance changes depending on the temperature, a tint in a front direction is excellent, and durability is excellent; and a window including the infrared control film. The infrared control film includes: a liquid crystal layer; and two substrates each of which includes at least one of an ultraviolet absorber or a colorant, in which the liquid crystal layer is disposed between the two substrates, the substrate includes 0.001 mass % or higher of the ultraviolet absorber or the colorant, a transmittance of the infrared control film at 0° C. with respect to an incidence ray at 1000 nm at a polar angle of 0° is higher than 70%, a transmittance of the infrared control film at 40° C. with respect to an incidence ray at 1000 nm at a polar angle of 0° is lower than 60%, and the following expressions are satisfied. 0.8