公开(公告)号：US20210026049A1

公开(公告)日：2021-01-28

申请号：US17034512

申请日：2020-09-28

Applicant: FUJIFILM Corporation

Inventor： Yukito SAITOH ,  Hiroshi SATO ,  Ayako MURAMATSU

IPC: G02B5/18 ,  G02F1/1337 ,  G02B5/30 ,  G02F1/11

Abstract: Provided is an optical element with which a high diffraction efficiency can be obtained with a simple configuration. The optical element includes: an optically-anisotropic layer that is formed using a composition including a liquid crystal compound, in which the optically-anisotropic layer has a liquid crystal alignment pattern in which a direction of an optical axis derived from the liquid crystal compound changes while continuously rotating in at least one in-plane direction, and the optically-anisotropic layer has a region in which an alignment direction of a liquid crystal compound in at least one of upper and lower interfaces has a pre-tilt angle with respect to the interface.

公开(公告)号：US20210011319A1

公开(公告)日：2021-01-14

申请号：US17034182

申请日：2020-09-28

Applicant: FUJIFILM Corporation

Inventor： Hiroshi SATO ,  Yukito SAITOH ,  Ayako MURAMATSU ,  Daisuke KASHIWAGI

IPC: G02F1/13363 ,  G02F1/1337 ,  G02B5/18 ,  F21V8/00 ,  G02F1/1335

Abstract: Provided is an optical element in which transmission of incident light with an angle in a predetermined direction is allowed and the brightness of transmitted light is high. The optical element is formed using a composition including a liquid crystal compound and has a liquid crystal alignment pattern in which a direction of an optical axis derived from the liquid crystal compound rotates in one direction; and the optically-anisotropic layer has regions in which the optical axis is twisted in a thickness direction of the optically-anisotropic layer and rotates, the regions having different magnitudes of twist angles of the rotation in a plane.

公开(公告)号：US20200326462A1

公开(公告)日：2020-10-15

申请号：US16913858

申请日：2020-06-26

Applicant: FUJIFILM Corporation

Inventor： Yujiro YANAI ,  Michio NAGAI ,  Hiroshi SATO

IPC: G02B5/30 ,  G01S17/10 ,  G01S17/931 ,  G01S7/481

Abstract: An object is to provide an optical element that is thin and can gather and reflect light in a specific wavelength range in a predetermined direction, and a sensor including the above-described optical element. The optical element includes a cholesteric liquid crystal layer, in which the cholesteric liquid crystal layer has a liquid crystal 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 in a case where a length over which the direction of the optical axis rotates by 180° in the in-plane direction in which the direction of the optical axis changes while continuously rotating is set as a single period, the cholesteric liquid crystal layer has in-plane regions having different lengths of the single periods in the liquid crystal alignment pattern.

公开(公告)号：US20200285108A1

公开(公告)日：2020-09-10

申请号：US16880997

申请日：2020-05-22

Applicant: FUJIFILM CORPORATION

Inventor： Yukito SAITOH ,  Hiroshi SATO ,  Naoyoshi YAMADA

IPC: G02F1/1335 ,  G02F1/1347 ,  G02F1/13 ,  G02F1/1337

Abstract: A display device includes an image display panel, and a viewing angle switching element includes a first linear polarizer, an optically anisotropic layer, a viewing angle control cell, and a second linear polarizer, in which an angle formed between transmission axes of the first linear polarizer and the second linear polarizer is 45°, the optically anisotropic layer has a function of changing an azimuth of a polarization axis of linearly polarized light emitted from the first linear polarizer and causing the light to be emitted toward the viewing angle control cell, the viewing angle control cell is formed of a vertically aligned liquid crystal cell in which vertically aligned liquid crystals are tilted in one direction by voltage application, and an angle formed between a tilt azimuth of the vertically aligned liquid crystal of the viewing angle control cell and the transmission axis of the second linear polarizer is 45°.

公开(公告)号：US20200271839A1

公开(公告)日：2020-08-27

申请号：US15930881

申请日：2020-05-13

Applicant: FUJIFILM Corporation

Inventor： Yukito SAITOH ,  Hiroshi SATO

IPC: G02B5/30 ,  G02F1/13363 ,  G02B5/18

Abstract: The optical element is an optical element comprising a first optically anisotropic layer which is a cured layer of a liquid crystal composition containing a first disk-like liquid crystal compound, in which the optical element has a liquid crystal alignment pattern in which an optical axis of the first disk-like liquid crystal compound is parallel to a surface of the first optically anisotropic layer, the first optically anisotropic layer is disposed along at least one direction in a plane of the first optically anisotropic layer, and orientation of the optical axis of the first disk-like liquid crystal compound rotationally changes continuously, and the orientation of the optical axis rotates by 180° with a period of 0.5μm to 5μm.

公开(公告)号：US20180304663A1

公开(公告)日：2018-10-25

申请号：US16010951

申请日：2018-06-18

Applicant: FUJIFILM Corporation

Inventor： Hiroshi SATO ,  Seiichiro MORIKAWA

IPC: B41N1/06 ,  B41C1/05 ,  G03F7/039

CPC classification number: B41N1/06 ,  B41C1/05 ,  B41N1/12 ,  G03F7/039 ,  G03F7/202

Abstract: The present invention is to provide a flexographic printing plate having high ink transferability and making it possible to perform printing with a high ink density in a solid portion, a flexographic printing plate precursor, a method for manufacturing a flexographic printing plate, and a method for manufacturing a flexographic printing plate precursor. A flexographic printing plate includes a relief layer including a non-image area and an image area having an uneven structure formed on a surface thereof, in which an average length RSm of roughness curve elements of the surface of the image area having the uneven structure is 15 to 120 μm, an oil-retention volume A2 is 2 to 180, and a load length ratio Rmr 30% at a cutting level of 30% is 20% to 90%.

公开(公告)号：US20150293392A1

公开(公告)日：2015-10-15

申请号：US14681679

申请日：2015-04-08

Applicant: FUJIFILM CORPORATION

Inventor： Yujiro YANAI ,  Hiroshi SATO

IPC: G02F1/13363 ,  G02F1/1335 ,  G02B5/30

CPC classification number: G02F1/13363 ,  G02B5/045 ,  G02B5/3016 ,  G02F1/133504 ,  G02F1/133528

Abstract: An aspect of the present invention relates to a brightness enhancement film, wherein a high refractive index layer and a low refractive index layer with an average refractive index that is lower than that of the high refractive index layer are directly laminated, and which includes a concavo-convex shape including concave portions and convex portions in an interface shape of an interface between the high refractive index layer and the low refractive layer, with the high refractive index layer including a lyotropic liquid-crystalline compound, and an outermost surface on the low refractive index layer side being a flat surface.

Abstract translation: 本发明的一个方面涉及亮度增强膜，其中直接层压平均折射率低于高折射率层的高折射率层和低折射率层，并且其包括凹凸 凸形，包括在高折射率层和低折射层之间的界面的界面形状的凹部和凸部，高折射率层包括溶致液晶化合物，低折射率的最外表面 折射率层侧为平坦面。

公开(公告)号：US20140340617A1

公开(公告)日：2014-11-20

申请号：US14269601

申请日：2014-05-05

Applicant: FUJIFILM Corporation

Inventor： Yujiro YANAI ,  Yukito SAITOH ,  Hiroshi SATO

IPC: G02F1/1335

CPC classification number: G02F1/133634 ,  G02F2001/13712 ,  G02F2413/04 ,  G02F2413/06 ,  G02F2413/11

Abstract: A VA-mode liquid crystal display device of four domains or less that causes less whitening and tinting, includes: a first polarizing film, a first retardation layer, a second retardation layer, a liquid crystal layer, a third retardation layer, a fourth retardation layer, and a second polarizing film, in sequence. The liquid crystal layer is in a vertical alignment mode (VA mode) under no voltage application. The first to fourth retardation layers each have a predetermined retardation. The absorption axis of the first polarizing film is orthogonal to that of the second polarizing film. The slow axis of the first retardation layer defines an angle of 45° from the absorption axis of the first polarizing film, and is parallel to the in-plane slow axis of the liquid crystal layer under voltage application. The slow axis of the first retardation layer is orthogonal to that of the fourth retardation layer.

Abstract translation: 导致少白化和着色的四域以下的VA型液晶显示装置包括：第一偏振膜，第一延迟层，第二延迟层，液晶层，第三延迟层，第四延迟 层和第二偏振膜。 在不施加电压的情况下，液晶层处于垂直取向模式（VA模式）。 第一至第四延迟层各自具有预定的延迟。 第一偏振膜的吸收轴与第二偏振膜的吸收轴正交。 第一延迟层的慢轴与第一偏振膜的吸收轴成45°角，与施加电压时的液晶层的面内慢轴平行。 第一延迟层的慢轴与第四延迟层的慢轴正交。

公开(公告)号：US20140327863A1

公开(公告)日：2014-11-06

申请号：US14263585

申请日：2014-04-28

Applicant: FUJIFILM Corporation

Inventor： Yujiro YANAI ,  Yukito SAITOH ,  Hiroshi SATO

IPC: G02F1/13363

CPC classification number: G02F1/13363 ,  G02F2202/40 ,  G02F2413/03 ,  G02F2413/04 ,  G02F2413/06

Abstract: A VA-mode LCD device of four domains or less includes a first polarizing film; a first retardation layer; a second retardation layer; a liquid crystal layer; a third retardation layer; and a second polarizing film, wherein the first retardation layer has Re (550) of 190 to 260 nm, and Rth (550) of 80 to 130 nm, a slow axis of the first retardation layer and the absorption axis of the first polarizing film define an angle of 45°, the absolute value of a Re (550) of the second retardation layer is not larger than 10 nm, while a Rth (550) of the second retardation layer is 150 to 350 nm, a Re (550) of the third retardation layer is 190 to 260 nm, while a Rth (550) of the third retardation layer is −80 to −130 nm, and a Δnd of the liquid crystal layer is 250 to 450 nm.

Abstract translation: 四个畴以下的VA模式的LCD装置包括：第一偏光膜; 第一延迟层; 第二延迟层; 液晶层; 第三延迟层; 和第二偏振膜，其中第一延迟层具有190至260nm的Re（550）和80至130nm的Rth（550），第一延迟层的慢轴和第一偏光膜的吸收轴 限定45°的角度，第二延迟层的Re（550）的绝对值不大于10nm，而第二延迟层的Rth（550）为150〜350nm，Re（550） 的第三延迟层的厚度为190〜260nm，第三延迟层的Rth（550）为-80〜-130nm，液晶层的＆Dgr。nd为250〜450nm。

公开(公告)号：US20140092349A1

公开(公告)日：2014-04-03

申请号：US14031764

申请日：2013-09-19

Applicant: FUJIFILM Corporation

Inventor： Ryo NAKAMURA ,  Hiroshi SATO

IPC: G02F1/13363

CPC classification number: G02F1/13363 ,  G02F1/133634 ,  G02F1/1396 ,  G02F2203/30 ,  G02F2203/66 ,  G02F2413/02

Abstract: A TN-mode liquid crystal display device, which exhibits reduced grayscale inversion and improved white luminance, including: in sequence, a first polarizer, a first retardation film, a first liquid crystal cell substrate, a TN-mode liquid crystal layer, a second liquid crystal cell substrate, a second retardation film, and a second polarizer, wherein the absorption axis of the first polarizer is orthogonal to the absorption axis of the second polarizer, the slow axis of the first retardation film tilts by about 45° from the absorption axis of the first polarizer, the slow axis of the second retardation film tilts by about 135° from the absorption axis of the second polarizer, the slow axis of the first retardation film is orthogonal to the slow axis of the second retardation film, the first retardation film and the second retardation film have the same Re(550), and the first retardation film has a Re(550) of 5≦Re(550)≦55.

Abstract translation: 一种TN模式液晶显示装置，其显示灰阶反转降低和白色亮度提高，包括：第一偏振器，第一延迟膜，第一液晶单元基板，TN模式液晶层，第二偏振片 液晶单元基板，第二延迟膜和第二偏振器，其中第一偏振器的吸收轴与第二偏振器的吸收轴正交，第一延迟膜的慢轴从吸收倾斜约45° 第一偏振器的轴线，第二延迟膜的慢轴从第二偏振片的吸收轴倾斜大约135°，第一延迟膜的慢轴与第二延迟膜的慢轴正交，第一 延迟膜和第二延迟膜具有相同的Re（550），并且第一延迟膜具有Re（550）为5＆amp; Re; 550（550）＆nlE; 55。