利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

15 条记录 (耗时 0.019 秒)

    Optical filter, optical device, and head-mounted display
    1.
    发明授权
    Optical filter, optical device, and head-mounted display 有权

    公开(公告)号：US11933987B2

    公开(公告)日：2024-03-19

    申请号：US17696416

    申请日：2022-03-16

    申请人： FUJIFILM Corporation

    发明人： Jun Ishiyama ,  Fumitake Mitobe ,  Yujiro Yanai

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

    CPC分类号： G02B27/0172 ,  G02F1/133509 ,  G02F1/133638 ,  G02B2027/0178

    摘要： Provided are an optical filter, an optical device, and a head-mounted display which have a high light transmittance in a front direction and a wide real field of view. The optical filter includes a first anisotropic absorption layer, a first retardation layer, and a second anisotropic absorption layer in this order, each of the first anisotropic absorption layer and the second anisotropic absorption layer contains a dichroic colorant, an absorption axis of the dichroic colorant is perpendicular to a main surface, and the first retardation layer has polar angle dependence of retardation that has asymmetry about a normal direction with respect to incident light hitting at least one incident surface including a normal of a layer surface of the first retardation layer.

    Method of forming photo-alignment film and method of forming liquid crystal layer
    2.
    发明授权
    Method of forming photo-alignment film and method of forming liquid crystal layer 有权

    公开(公告)号：US12124061B2

    公开(公告)日：2024-10-22

    申请号：US17702010

    申请日：2022-03-23

    申请人： FUJIFILM Corporation

    发明人： Fumitake Mitobe ,  Yukito Saitoh ,  Hiroshi Sato ,  Katsumi Sasata ,  Akiko Watano

    IPC分类号： G02B5/18 ,  G02B5/30

    CPC分类号： G02B5/1857 ,  G02B5/3016

    摘要： Provided are a method of forming a photo-alignment film having a large size that can appropriately align a liquid crystal compound can be formed and a method of forming a liquid crystal layer having a large size in which alignment defects of a liquid crystal compound can be suppressed. The method of forming a photo-alignment film includes: an exposure step of irradiating a surface of a photo-alignment film including a photo-alignment material that is formed on a support with interference light formed by intersection of two light components such that the surface of the photo-alignment film is exposed to form, on the photo-alignment film, an alignment pattern in which a direction of an optical axis derived from a liquid crystal compound changes while continuously rotating in at least one in-plane direction; and a moving step of moving the support by a distance D in a direction parallel to the surface of the support and parallel to a straight line formed by optical axes of the two beams, in which the photo-alignment film is exposed by alternately repeating the exposure step and the moving step. Here, the distance D is represented by λ/{2×sin(α/2)}×N−λ/8

    Polarizing element, circularly polarizing plate, and image display device
    5.
    发明授权
    Polarizing element, circularly polarizing plate, and image display device 有权

    公开(公告)号：US11822108B2

    公开(公告)日：2023-11-21

    申请号：US17853282

    申请日：2022-06-29

    申请人： FUJIFILM Corporation

    发明人： Yasukazu Kuwayama ,  Fumitake Mitobe ,  Yuzo Fujiki ,  Jun Takeda

    IPC分类号： G02B5/30

    CPC分类号： G02B5/3041 ,  G02B5/3083

    摘要： 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.

    Optical element and image display apparatus
    7.
    发明授权
    Optical element and image display apparatus 有权

    公开(公告)号：US12066707B2

    公开(公告)日：2024-08-20

    申请号：US17937370

    申请日：2022-09-30

    申请人： FUJIFILM Corporation

    发明人： Katsumi Sasata ,  Fumitake Mitobe ,  Hiroshi Sato ,  Yukito Saitoh

    IPC分类号： G02F1/1335 ,  G02B27/01

    CPC分类号： G02F1/133504 ,  G02F1/133524 ,  G02F1/133541 ,  G02F1/133543 ,  G02B27/0172

    摘要： An optical element includes a light guide plate, an incidence portion, and an emission portion, in which each of the incidence portion and the emission portion includes diffraction portions, the diffraction portion includes diffraction elements, the diffraction element includes a liquid crystal diffraction layer in which a direction of an optical axis of a liquid crystal compound changes while continuously rotating in one in-plane direction, and in a case where the direction in which the direction of the optical axis changes is set as an in-plane rotation direction and a length over which the optical axis rotates by 180° is set as an in-plane period, in-plane rotation directions of liquid crystal diffraction layers of incidence diffraction elements in at least two of a plurality of the incidence diffraction portions are different from each other.

    Laminate
    8.
    发明授权
    Laminate 有权

    公开(公告)号：US11487055B2

    公开(公告)日：2022-11-01

    申请号：US16940798

    申请日：2020-07-28

    申请人： FUJIFILM Corporation

    发明人： Naoya Nishimura ,  Fumitake Mitobe ,  Yuzo Fujiki ,  Jun Takeda

    IPC分类号： G02B5/30 ,  G02B1/14 ,  G02B1/04 ,  H01L27/32 ,  H01L51/52 ,  G02F1/13363

    摘要： An object of the present invention is to provide a laminate in which the coloring of reflected light is reduced. The laminate includes an optical film having a light absorption anisotropic film formed using a composition including a dichroic substance and having a transmittance of more than 50%, a λ/4 plate, and a metal electrode in this order, in which in a case where a degree (%) of polarization at a wavelength of λ of the optical film is defined as P(λ) and a reflectance (%) at the wavelength of λ of the metal electrode is defined as R(λ), a ratio of a minimum value of R/P to a maximum value of R/P at wavelengths of 450 nm, 550 nm, and 650 nm is more than 85%.

    Polarizing plate and liquid crystal display device
    10.
    发明授权
    Polarizing plate and liquid crystal display device 有权
    偏光板和液晶显示装置

    公开(公告)号：US09417477B2

    公开(公告)日：2016-08-16

    申请号：US14605163

    申请日：2015-01-26

    申请人： FUJIFILM Corporation

    发明人： Ryuji Saneto ,  Fumitake Mitobe

    IPC分类号： G02F1/1335 ,  G02B1/14 ,  G02B1/10 ,  G02B5/30

    CPC分类号： G02F1/133528 ,  G02B1/10 ,  G02B1/105 ,  G02B1/14 ,  G02B5/3033 ,  G02F2001/133565 ,  G02F2201/50 ,  Y10T428/269

    摘要： There is provided a polarizing plate including a first protective film, a polarizer, and a second protective film in this order, in which the first protective film is a film including a synthetic polymer, and has a thickness of 30 μm or less, an elastic modulus in the TD direction of 2 GPa to 2.5 GPa, and a humidity dimensional change rate in a TD direction of 0.1% or less, and the second protective film has an evaluation value represented by the following Equation (2) of 7.0 to 11.0: Evaluation value=elastic modulus (GPa) of the second protective film in a TD direction/humidity dimensional change rate (%) of the second protective film in the TD direction×(thickness (μm) of the second protective film/thickness (μm) of the first protective film)2×(30/thickness (μm) of the polarizer)1/2 Equation (2).

    摘要翻译： 提供了包括第一保护膜，偏振片和第二保护膜的偏振片，其中第一保护膜是包括合成聚合物的膜，并且具有30μm或更小的厚度，弹性 TD方向的模量为2GPa至2.5GPa，TD方向的湿度尺寸变化率为0.1％以下，第二保护膜具有由下式（2）表示的评价值为7.0〜11.0： 评估值= TD方向上的第二保护膜的弹性模量（GPa）/第二保护膜的TD方向的湿度尺寸变化率（％）×（第二保护膜的厚度（μm）/厚度（μm） 的第一保护膜）2×（30 /偏振片的厚度（μm））1/2等式（2）。