公开(公告)号：US11203655B2

公开(公告)日：2021-12-21

申请号：US16843242

申请日：2020-04-08

Applicant: FUJIFILM Corporation

Inventor： Yuki Fukushima ,  Shunya Katoh ,  Koji Iijima ,  Shuhei Okuda

IPC: C08F220/28 ,  C09K19/56 ,  G02B5/30 ,  C09K19/54 ,  G02F1/1335 ,  G02F1/13363 ,  C09K19/04

Abstract: An object of the present invention is to provide a polymer compound which can form a phase difference layer having high alignment and suppressed surface unevenness by being blended into a liquid crystal composition, and a liquid crystal composition, a phase difference layer, an optical film, a polarizing plate, and an image display device using the same. The polymer compound of the present invention includes a repeating unit represented by Formula (I), a repeating unit represented by Formula (II), and a repeating unit represented by Formula (III), in which an acid value is 115 mgKOH/g or more, and a hydroxyl value is 70 mgKOH/g or more.

公开(公告)号：US20200231727A1

公开(公告)日：2020-07-23

申请号：US16843242

申请日：2020-04-08

Applicant: FUJIFILM Corporation

Inventor： Yuki Fukushima ,  Shunya Katoh ,  Koji Iijima ,  Shuhei Okuda

IPC: C08F220/28 ,  C09K19/56 ,  G02B5/30

Abstract: An object of the present invention is to provide a polymer compound which can form a phase difference layer having high alignment and suppressed surface unevenness by being blended into a liquid crystal composition, and a liquid crystal composition, a phase difference layer, an optical film, a polarizing plate, and an image display device using the same. The polymer compound of the present invention includes a repeating unit represented by Formula (I), a repeating unit represented by Formula (II), and a repeating unit represented by Formula (III), in which an acid value is 115 mgKOH/g or more, and a hydroxyl value is 70 mgKOH/g or more.

公开(公告)号：US12189229B2

公开(公告)日：2025-01-07

申请号：US18679967

申请日：2024-05-31

Applicant: FUJIFILM Corporation

Inventor： Takashi Yonemoto ,  Masaaki Suzuki ,  Koji Iijima ,  Hiroshi Sato ,  Ayato Sekine

IPC: G02F1/1335 ,  G02B27/01 ,  G02F1/13363

Abstract: Provided are a liquid crystal diffraction element, an image display apparatus, and a head mounted display where occurrence of a ghost in a head mounted display such as VR glasses can be suppressed. The liquid crystal diffraction element includes at least an optically-anisotropic layer that is formed of a liquid crystal composition including a liquid crystal compound, in which the optically-anisotropic layer has a liquid crystal alignment pattern in which an orientation of an optical axis derived from the liquid crystal compound changes while continuously rotating in at least one in-plane direction, in a case where a length over which the optical axis rotates by 180 degrees in the one direction is set as a single period, the single period gradually changes in the one direction, and in a case where an average period of 50 periods in the one direction from a period having a longest length of the single period is represented by Λa and a main surface of the optically-anisotropic layer in a region having a period shorter than or equal to the average period Λa is observed with an optical microscope, both of a ratio between a maximum value and a minimum value among widths of 30 continuous bright lines and a ratio between a maximum value and a minimum value among widths of 30 continuous dark lines in the region are 1.2 or less.

公开(公告)号：US11820930B2

公开(公告)日：2023-11-21

申请号：US17208255

申请日：2021-03-22

Applicant: FUJIFILM Corporation

Inventor： Shunya Katoh ,  Yuki Fukushima ,  Shuhei Okuda ,  Koji Iijima ,  Masato Nakao

IPC: C09D133/16 ,  C09K19/04 ,  C08G61/04 ,  C08J5/18 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1337 ,  C09D133/14 ,  C09K19/52

CPC classification number: C09K19/04 ,  C08G61/04 ,  C08J5/18 ,  C09D133/14 ,  C09D133/16 ,  C09K19/52 ,  G02B5/305 ,  G02F1/13363 ,  G02F1/133528 ,  G02F1/133711 ,  C08G2261/146 ,  C08G2261/1424 ,  C08G2261/1426 ,  C08G2261/1432 ,  C08J2300/102 ,  C08J2300/105 ,  C08J2300/106 ,  C09K2019/0448 ,  C09K2219/03

Abstract: An object of the present invention is to provide a polymer compound in which, by blending with a liquid crystal composition containing a liquid crystalline compound, alignment of the liquid crystalline compound in a phase difference layer to be obtained increases; and a liquid crystal composition, a phase difference layer, an optical film, a polarizing plate, and an image display device using the same. The polymer compound of the present invention is a polymer compound including a repeating unit represented by Formula (I), a repeating unit represented by Formula (II), a repeating unit represented by Formula (III), and a repeating unit represented by Formula (IV).

公开(公告)号：US10935710B2

公开(公告)日：2021-03-02

申请号：US16123032

申请日：2018-09-06

Applicant: FUJIFILM Corporation

Inventor： Koji Iijima ,  Tatsuya Iwasaki ,  Katsufumi Ohmuro ,  Masaaki Suzuki

IPC: G02B5/30 ,  C08F222/10 ,  B32B7/02 ,  C08L45/00 ,  B32B7/12 ,  B32B27/08 ,  C08G61/08 ,  C08L65/00 ,  G02F1/1335 ,  H01L51/52

Abstract: The present invention relates to an optical film which ensures adhesiveness between a polymer film and a liquid crystal layer without deteriorating the alignment of a liquid crystal compound; a polarizing plate using the same; an image display device; a method for producing an optical film; and a method for producing a polarizing plate. The optical film includes a polymer film including a cycloolefin-based polymer, and a liquid crystal layer that is provided adjacent to the polymer film, in which the liquid crystal layer is formed by using a liquid crystal composition containing a liquid crystal compound and a compound having a specific structure, where the liquid crystal composition contains the compound having a specific structure at a content of 0.5% to 7.0% by mass with respect to a mass of the liquid crystal compound, and a predetermined eccentricity value is 20% to 80%.

公开(公告)号：US10961458B2

公开(公告)日：2021-03-30

申请号：US16360441

申请日：2019-03-21

Applicant: FUJIFILM Corporation

Inventor： Masaaki Suzuki ,  Shunya Katoh ,  Koji Iijima ,  Yuki Nakamura

IPC: C09K19/38 ,  C09K19/54 ,  C09K19/46 ,  C09K19/20 ,  G02F1/1335 ,  C09K19/40 ,  G02B5/30 ,  C09K19/04

Abstract: A liquid crystal composition is provided which has excellent alignment properties, improves a surface state of an optically anisotropic layer to be formed, and improves adhesiveness with a polarizer, an optical film using the same, a polarizing plate, and an image display device. The liquid crystal composition according to the present invention is a liquid crystal composition containing a copolymer having a repeating unit represented by Formula (I) and a repeating unit represented by Formula (II), and a liquid crystal compound.

公开(公告)号：US10908338B2

公开(公告)日：2021-02-02

申请号：US16266889

申请日：2019-02-04

Applicant: FUJIFILM Corporation

Inventor： Shunya Katoh ,  Koji Iijima ,  Mitsuyoshi Ichihashi ,  Masaru Yoshikawa

IPC: G02B5/30 ,  C08F2/44 ,  G02F1/13363 ,  C09K19/40 ,  C09D133/14 ,  H01L51/52 ,  C08J7/18 ,  C09K19/34 ,  G09F9/30 ,  C09K19/00 ,  G02F1/1335 ,  G02F1/1337 ,  C08F226/10 ,  C08F220/06 ,  C08F220/30 ,  C08F222/10

Abstract: The present invention provides an optical film exhibiting high alignment and good phase difference development in an oblique direction, and a polarizing plate and an image display device using the same. This optical film of the present invention has a substrate; and a phase difference layer which is provided on the substrate to be adjacent to the substrate, in which the phase difference layer is a layer formed by fixing vertical alignment of a liquid crystal compound having a polymerizable group included in a liquid crystal composition containing the liquid crystal compound and a polymer compound, a difference in δa value between the polymer compound and the substrate, which is calculated using three-dimensional SP values, is 3 or less, and a content of the polymer compound is less than 10 parts by mass with respect to 100 parts by mass of the liquid crystal compound.

公开(公告)号：US10144199B2

公开(公告)日：2018-12-04

申请号：US15433768

申请日：2017-02-15

Applicant: FUJIFILM Corporation

Inventor： Takashi Tamada ,  Koji Iijima ,  Nobuhiko Ichihara

IPC: B32B23/08 ,  B32B23/20 ,  G02B5/30 ,  B32B23/16 ,  B32B27/30 ,  G02F1/1335 ,  C08J7/06

Abstract: The present invention provides a cellulose acylate film, containing: an organic acid satisfying requirements of a to c, in which a film thickness of the cellulose acylate film is greater than or equal to 3 μm, and an average concentration of the organic acid in a region from one surface of the cellulose acylate film to a depth of 0 to 0.2 μm is lower than an average concentration of the organic acid in a residual region other than the region: a: having a structure in which polyhydric alcohol and a polyvalent carboxylic acid are bonded by forming an ester bond; b: the total number of molecules of polyhydric alcohol and a monovalent or more carboxylic acid forming the organic acid being greater than or equal to 3; and c: having at least one non-substituted carboxyl group derived from a polyvalent carboxylic acid.