公开(公告)号：US20230150254A1

公开(公告)日：2023-05-18

申请号：US18156462

申请日：2023-01-19

申请人： FUJIFILM Corporation

发明人： Yusuke Namba ,  Kazuaki Enomoto ,  Ichiro Koyama ,  Akira Sakaguchi ,  Akira Yamamoto

IPC分类号： B41C1/10

CPC分类号： B41C1/1016 ,  B41C2210/04 ,  B41C2201/02 ,  B41C2210/22 ,  B41C2201/12

摘要： Provided is an on-press development type lithographic printing plate precursor having two or more maximal absorption wavelengths in a wavelength range of 760 nm to 900 nm, in which in a case where the on-press development type lithographic printing plate precursor is subjected to exposure to infrared having a wavelength of 830 nm at an energy density of 110 mJ/cm2, in a portion subjected to the exposure, a brightness change ΔL before the exposure and after storage subsequent to the exposure for 24 hours under conditions of 25° C. and 70% RH is 3.0 or more. Also provided are a method of preparing a lithographic printing plate and a lithographic printing method in which the on-press development type lithographic printing plate precursor is used.

公开(公告)号：US10386569B2

公开(公告)日：2019-08-20

申请号：US15672727

申请日：2017-08-09

申请人： FUJIFILM Corporation

发明人： Yujiro Yanai ,  Yukito Saitoh ,  Akira Yamamoto ,  Nobuhiko Ichihara ,  Daisuke Kashiwagi ,  Michio Nagai

IPC分类号： F21V8/00 ,  G02B5/02 ,  G02B5/30 ,  G02F1/137 ,  G02F1/1335 ,  G02F1/13357

摘要： Provided is an optical member having a high brightness, a low haze, and a small color change, an optical element, a liquid crystal display device, and a near-to-eye optical member. The optical member includes a plurality of cholesteric liquid crystal dots that are provided on a substrate, in which a shape of each of the dots is a hemispherical or elliptical hemispherical shape in which the substrate side is planar, a conical or elliptical conical shape in which the substrate side is set as the bottom, or a shape in which a plurality of shapes selected from the shapes are laminated, the cholesteric liquid crystal dot has a reflection center wavelength with respect to visible light, the cholesteric structure of the dot has a stripe pattern including bright portions and dark portions in a cross-sectional view of the dot when observed with a scanning electron microscope, the dot includes a portion having a height which continuously increases to a maximum height in a direction moving from an end portion of the dot to the center of the dot, and in the portion, an angle between a normal line perpendicular to a line, which is formed using a first dark portion from a surface of the dot opposite to the substrate, and the surface of the dot is in a range of 70° to 90°.

公开(公告)号：US10338289B2

公开(公告)日：2019-07-02

申请号：US15616398

申请日：2017-06-07

申请人： FUJIFILM Corporation

发明人： Daisuke Kashiwagi ,  Yoji Ito ,  Michio Nagai ,  Akira Yamamoto ,  Nobuhiko Ichihara ,  Hideyuki Nakamura

IPC分类号： G02F1/1335 ,  G02B5/30 ,  G06F3/0354 ,  G06F3/042 ,  G06F3/03

摘要： Provided is an optical member including: a substrate; and a dot that is in contact with a surface of the substrate, in which the dot is formed of a liquid crystal material having a cholesteric structure, four or more dots form one recognition effective region as an aggregate, and a shortest inter-end distance between one arbitrary dot and at least two other dots in the recognition effective region is 10 μm or less. in the optical member, even when a dot pattern is observed in an oblique direction, retroreflection properties are exhibited and the intensity of reflected light is high. By using the optical member according to the present invention, an image display device having a high data input sensitivity can be provided.

公开(公告)号：US11977299B2

公开(公告)日：2024-05-07

申请号：US17674857

申请日：2022-02-18

申请人： FUJIFILM CORPORATION

发明人： Akira Yamamoto ,  Makoto Kamo

IPC分类号： G02F1/1337

CPC分类号： G02F1/133788 ,  G02F1/133757

摘要： A polarized light irradiation device of the present disclosure has: a light source unit which continuously emits polarized light; a light shaping unit which shapes the polarized light emitted from the light source unit into a preset shape to irradiate an irradiation target object with the shaped polarized light; a transport mechanism which transports the irradiation target object relative to the light source unit; and an interlocking mechanism which periodically and continuously changes a direction of linearly polarized light applied to the irradiation target object or an azimuthal angle of elliptically polarized light applied to the irradiation target object according to an amount of transport of the irradiation target object relative to the light source unit by the transport mechanism.

公开(公告)号：US10795254B2

公开(公告)日：2020-10-06

申请号：US16015513

申请日：2018-06-22

申请人： FUJIFILM Corporation

发明人： Yujiro Yanai ,  Akira Yamamoto ,  Michio Nagai

IPC分类号： G03B21/62 ,  G03B21/60 ,  G03B21/604 ,  G02F1/1335 ,  G03B21/28

摘要： According to the present invention, there is provided a plurality of protruding portions that are formed on one surface of the support and have inclined surfaces parallel to each other; a cholesteric liquid crystal layer that is formed on each of the inclined surfaces of the protruding portions; and an overcoat layer that is laminated on the surface of the support on which the protruding portions are formed so as to cover the cholesteric liquid crystal layer, in which a normal line of each of the inclined surfaces of the protruding portions is parallel to a spiral axis of the cholesteric structure of the cholesteric liquid crystal layer, an angle formed between a normal line of a surface of the overcoat layer and the spiral axis of the cholesteric structure is 5° to 42°, a difference in refractive index between the cholesteric liquid crystal layer and the protruding portion and a difference in refractive index between the cholesteric liquid crystal layer and the overcoat layer are 0.2 or less.

公开(公告)号：US20190302603A1

公开(公告)日：2019-10-03

申请号：US16447400

申请日：2019-06-20

申请人： FUJIFILM Corporation

发明人： Yujiro Yanai ,  Michio Nagai ,  Akira Yamamoto

IPC分类号： G03B21/62 ,  G02B5/02 ,  B32B27/08 ,  H04N5/74 ,  B32B38/18 ,  C08J7/04 ,  C09J7/38 ,  C09J7/22 ,  C08F220/10

摘要： Provided is an optical film having high contrast and excellent visibility. The optical film includes: a transparent screen; and a transparent reflecting layer that is disposed on one main surface of the transparent screen, in which in the transparent screen, a ratio T15/T30 of a light amount T15 of transmitted light at an angle of 15 degrees with respect to a normal direction of the main surface to a light amount T30 of transmitted light at an angle of 30 degrees with respect to the normal direction of the main surface is 2.0 or higher, and the ratio R15/R30 of the light amount R15 of reflected light at an angle of 15 degrees with respect to the normal direction of the main surface to the light amount R30 of reflected light at an angle of 30 degrees with respect to the normal direction of the main surface is 2.0 or lower.

公开(公告)号：US10222525B2

公开(公告)日：2019-03-05

申请号：US15496622

申请日：2017-04-25

申请人： FUJIFILM Corporation

发明人： Michio Nagai ,  Yoji Ito ,  Daisuke Kashiwagi ,  Akira Yamamoto ,  Nobuhiko Ichihara ,  Hideyuki Nakamura

IPC分类号： G06F3/03 ,  G02B5/26 ,  G02F1/13 ,  G06F3/042 ,  G06F3/0354

摘要： The optical member of the present invention includes: a substrate; and a dot that is in contact with a surface of the substrate, in which the dot has wavelength selective reflecting properties, the dot is formed of a liquid crystal material having a cholesteric structure, the cholesteric structure has a stripe pattern including bright portions and dark portions in a cross-sectional view of the dot when observed with a scanning electron microscope, the dot includes a portion having a height which continuously increases to a maximum height in a direction moving from an end portion of the dot to the center of the dot, in the portion, an angle between a normal line perpendicular to a line, which is firmed using a first dark portion from a surface of the dot, and the surface is in a range of 70° to 90°, and the liquid crystal material includes a surfactant.

公开(公告)号：US10025012B2

公开(公告)日：2018-07-17

申请号：US15177776

申请日：2016-06-09

申请人： FUJIFILM Corporation

发明人： Hiroshi Sato ,  Akira Yamamoto ,  Yujiro Yanai

IPC分类号： G02F1/1335 ,  G02B5/30 ,  G02F1/13363 ,  G02B1/14

摘要： The present invention provides a polarizing plate where, when the polarizing plate is applied to a liquid crystal display device, both thinning of the device and improvement in display performance such as prevention of light leakage, prevention of color variation, and suppression of display unevenness under a moist and hot environment can be achieved. The polarizing plate has, in this order, a first polarizer protective layer, a first polarizer, a first optically anisotropic layer including a liquid crystal compound X, and a second optically anisotropic layer including a liquid crystal compound Y, in which the thickness of the first optically anisotropic layer is 10 μm or less, the first optically anisotropic layer has predetermined Re(550) and Rth(550), the thickness of the second optically anisotropic layer is 10 μm or less, and has predetermined Re(550) and Rth(550), and the polarizing plate has a thickness of is 100 μm or less.

公开(公告)号：US11906865B2

公开(公告)日：2024-02-20

申请号：US17487490

申请日：2021-09-28

申请人： FUJIFILM Corporation

发明人： Ryuji Saneto ,  Akira Yamamoto ,  Hideki Kaneiwa ,  Makoto Ishiguro ,  Michio Nagai

IPC分类号： G02F1/137 ,  B32B7/023 ,  G02B5/08

CPC分类号： G02F1/13718 ,  B32B7/023 ,  G02B5/08

摘要： Provided are a reflective sheet including a cholesteric liquid crystal layer and having excellent reflection wavelength range, diffuse reflectivity, reflectivity, hardness, and scratch resistance; and a transfer film for a reflective sheet that is used for the reflective sheet. The reflective sheet includes a substrate, an adhesive layer, a cholesteric liquid crystal layer, and a hard coat layer in this order, in which in a cross-section of the cholesteric liquid crystal layer observed, at least a part of bright portions and dark portions has a flapping structure, the cholesteric liquid crystal layer has a pitch gradient structure in which a helical pitch changes in a thickness direction, and the helical pitch on the adhesive layer side is larger than that on the hard coat layer side.

公开(公告)号：US20220118753A1

公开(公告)日：2022-04-21

申请号：US17646071

申请日：2021-12-27

申请人： FUJIFILM Corporation

发明人： Natsumi Yokokawa ,  Kazuaki Enomoto ,  Akinori Fujita ,  Yusuke Namba ,  Akira Sakaguchi ,  Akira Yamamoto ,  Ichiro Koyama

IPC分类号： B41C1/10 ,  G03F7/033 ,  G03F7/11 ,  G03F7/029

摘要： Provided is an on-press development type lithographic printing plate precursor having a support and an image-recording layer on the support, in which the image-recording layer contains an infrared absorber, a polymerization initiator, a polymerizable compound, and a color-developing substance precursor, and in a case where the image-recording layer is exposed to an infrared laser having a wavelength of 830 nm at an energy density of 110 mJ/cm2, a loss of ethylenically unsaturated bonds in an exposed area in the image-recording layer is 10% to 40% of ethylenically unsaturated bonds in a non-exposed area in the image-recording layer. Also provided is a method for preparing a lithographic printing plate or a lithographic printing method using the on-press development type lithographic printing plate precursor.