公开(公告)号：US20170343830A1

公开(公告)日：2017-11-30

申请号：US15678498

申请日：2017-08-16

Applicant: FUJIFILM Corporation

Inventor： Michio NAGAI ,  Yoji ITO ,  Akira YAMAMOTO ,  Yukito SAITOH ,  Yujiro YANAI ,  Daisuke KASHIWAGI ,  Nobuhiko ICHIHARA

IPC: G02B27/28

CPC classification number: G02B27/288 ,  G02B5/0215 ,  G02B5/0236 ,  G02B5/0284 ,  G02B5/201 ,  G02B5/3016 ,  G02B27/26 ,  G03B21/567 ,  G03B21/60 ,  G03B21/62

Abstract: A transparent screen includes a substrate capable of transmitting light; and a plurality of dots formed on a surface of the substrate, each of the dots having wavelength-selective reflectivity and being formed of a liquid crystal material having a cholesteric structure, in which the cholesteric structure gives a striped pattern of bright parts and dark parts in a cross-sectional view of the dot observed by scanning electron microscope, the dot includes a portion having a height that increases continuously to the maximum height in a direction extending from the edge toward the center of the dot, and in the portion, the angle formed by the normal line to a line that is formed by a first one of the dark parts as counted from the surface of the dot on the opposite side of the substrate and the surface of the dot is in the range of 70° to 90°.

公开(公告)号：US20170336555A1

公开(公告)日：2017-11-23

申请号：US15672727

申请日：2017-08-09

Applicant: FUJIFILM Corporation

Inventor： Yujiro YANAI ,  Yukito SAITOH ,  Akira YAMAMOTO ,  Nobuhiko ICHIHARA ,  Daisuke KASHIWAGI ,  Michio NAGAI

IPC: F21V8/00 ,  G02F1/1335

CPC classification number: G02B6/0055 ,  G02B5/02 ,  G02B5/3016 ,  G02B6/0045 ,  G02F1/133528 ,  G02F1/1336 ,  G02F1/13718 ,  G02F2203/02

Abstract: 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：US20170123267A1

公开(公告)日：2017-05-04

申请号：US15388839

申请日：2016-12-22

Applicant: FUJIFILM Corporation

Inventor： Yujiro YANAI ,  Yukito SAITOH

IPC: G02F1/1335 ,  G02F1/13363

CPC classification number: G02F1/133536 ,  G02B5/3025 ,  G02F1/13362 ,  G02F1/133621 ,  G02F1/13363 ,  G02F2001/133543 ,  G02F2001/133607 ,  G02F2001/133614 ,  G02F2001/133638 ,  G02F2202/36 ,  G02F2413/01 ,  G02F2413/05

Abstract: A liquid crystal display device includes a backlight that emits unpolarized blue light, a reflective polarizing layer which is provided on an emission side of the backlight and converts blue light to linearly polarized light, a quantum rod layer which is provided on a blue linearly polarized light emission side of the reflective polarizing layer and converts blue linearly polarized light to red linearly polarized light and green linearly polarized light using multiple quantum rods, and a liquid crystal panel disposed on a red linearly polarized light and green linearly polarized light emission side. In the quantum rod layer, a polarization direction of the blue linearly polarized light emitted from the reflective polarizing layer and a long axis direction of the quantum rods are parallel to each other.

公开(公告)号：US20170108726A1

公开(公告)日：2017-04-20

申请号：US15392383

申请日：2016-12-28

Applicant: FUJIFILM Corporation

Inventor： Yujiro YANAI ,  Yukito SAITOH

IPC: G02F1/1335 ,  G02F1/13363

CPC classification number: G02F1/13362 ,  G02F1/133536 ,  G02F1/13363 ,  G02F1/13718 ,  G02F2001/133548 ,  G02F2001/133614 ,  G02F2001/133638 ,  G02F2202/36

Abstract: Provided is a liquid crystal display device in which color reproducibility and brightness are improved. The liquid crystal display device includes a backlight that emits unpolarized blue light, a quantum rod layer which is provided on an emission side of the backlight and converts some of blue light to red linearly polarized light and green linearly polarized light using multiple quantum rods, a reflective polarizing layer which is provided on a side from which the red linearly polarized light and the green linearly polarized light of the quantum rod layer are emitted, and a liquid crystal panel disposed on a blue linearly polarized light emission side of the reflective polarizing layer, and a long axis direction of the quantum rods in the quantum rod layer and a polarization direction of the blue linearly polarized light emitted from the reflective polarizing layer are parallel to each other.

公开(公告)号：US20160291225A1

公开(公告)日：2016-10-06

申请号：US15177776

申请日：2016-06-09

Applicant: FUJIFILM Corporation

Inventor： Hiroshi SATO ,  Akira YAMAMOTO ,  Yujiro YANAI

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

CPC classification number: G02B5/3016 ,  G02B1/14 ,  G02F1/1335 ,  G02F1/133528 ,  G02F1/13363 ,  G02F1/133634 ,  G02F2001/133531 ,  G02F2001/133562 ,  G02F2413/08

Abstract: 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.

Abstract translation: 本发明提供了一种偏振片，其中当将偏振片应用于液晶显示装置时，该装置的薄型化和显示性能的提高，例如防止漏光，防止颜色变化和抑制显示不均匀性 可以实现潮湿和潮湿的环境。 偏光板依次具有第一偏振片保护层，第一偏振片，包括液晶化合物X的第一光学各向异性层和包括液晶化合物Y的第二光学各向异性层，其中， 第一光学各向异性层为10μm以下，第一光学各向异性层具有规定的Re（550）和Rth（550），第二光学各向异性层的厚度为10μm以下，具有规定的Re（550）和Rth （550），并且所述偏振片的厚度为100μm以下。

公开(公告)号：US20140198272A1

公开(公告)日：2014-07-17

申请号：US14225989

申请日：2014-03-26

Applicant: FUJIFILM Corporation

Inventor： Yuya HAMAGUCHI ,  Yujiro YANAI ,  Junichi HIRAKATA

IPC: G02B5/30 ,  G02F1/1335 ,  G02B27/26 ,  G02F1/13363

CPC classification number: G02B5/3083 ,  G02B27/2214 ,  G02B27/26 ,  G02F1/133528 ,  G02F1/13363 ,  G02F2001/133631 ,  H04N13/337

Abstract: To reduce the crosstalk caused by the optical characteristic of the support film. A patterned retardation film comprising at least a support film (14) having optical anisotropy and a patterned retardation layer (12) disposed on the support film and having a first retardation region and a second retardation region, at least one of an in-plane slow axis direction and a retardation being different between the first and second retardation regions, wherein a variation in the in-plane slow axis direction of the support film is 3° or more.

Abstract translation: 以减少由支撑膜的光学特性引起的串扰。 包括至少具有光学各向异性的支撑膜（14）的图案化延迟膜和设置在所述支撑膜上并具有第一延迟区域和第二延迟区域的图案化延迟层（12），所述图案化延迟膜中的至少一个面内缓慢 并且在第一和第二延迟区域之间的相位差不同，其中支撑膜的面内慢轴方向的变化为3°以上。

公开(公告)号：US20250164850A1

公开(公告)日：2025-05-22

申请号：US19031008

申请日：2025-01-17

Applicant: FUJIFILM Corporation

Inventor： Yujiro YANAI

IPC: G02F1/29

Abstract: Provided is a small lens device where a focal length is variable. Each of first and second liquid crystal layers includes a circular center portion and a plurality of annular portions, the first and second liquid crystal layers are rotatable relative to each other, inner diameters and outer diameters of the n-th annular portions from the center portions of the first and second liquid crystal layers are the same, and in polar coordinates of r and φ, in a case where a pattern where an angle θ1 of an optical axis in a region where φ is φ1 satisfies a relationship represented by Expression 3: {α1×φ1+θ0n1}−3°≤θ1≤{α1×φ1+θ0n1}+3° (where θ0n1 represents an angle of the optical axis of each of the center portion and the annular portions at φ1=0°) is set as a vortex alignment pattern, the center portion of the first liquid crystal layer has a vortex alignment pattern where α1=m×0.5, the n-th annular portion of the first liquid crystal layer has a vortex alignment pattern where α1=(m+n)×0.5, the center portion of the second liquid crystal layer has a vortex alignment pattern where α2=−(m×0.5), and the n-th annular portion of the second liquid crystal layer has a vortex alignment pattern where α2=−(m+n)×0.5.

公开(公告)号：US20250123145A1

公开(公告)日：2025-04-17

申请号：US19000213

申请日：2024-12-23

Applicant: FUJIFILM Corporation

Inventor： Yukito SAITOH ,  Yujiro YANAI ,  Kazuya HISANAGA

IPC: G01J3/18 ,  G02F1/1335 ,  G02F1/1337

Abstract: Provided a spectroscopic system where a reduction in size can be achieved. The spectroscopic system includes an optical element, in which the optical element include a prism and a liquid crystal diffraction element disposed on a first surface of the prism directly or with another layer interposed between the prism and the liquid crystal diffraction element, the prism has a second surface tilted with respect to the first surface, a tilt angle of the second surface is 4° or more, the liquid crystal diffraction element includes a cholesteric liquid crystal layer, the cholesteric liquid crystal layer has a liquid crystal alignment pattern in which an orientation of an optical axis derived from a liquid crystal compound changes while continuously rotating in at least one in-plane direction, in a case where a length over which the orientation of the optical axis in the liquid crystal alignment pattern rotates by 180° is set as a single period, a length of the single period is 0.1 to 1.4 μm, and the spectroscopic system allows dispersion target light to be incident into the liquid crystal diffraction element side, reflects the incident light from the liquid crystal diffraction element, totally reflects the reflected light from a surface of the liquid crystal diffraction element opposite to the prism side, allows the totally reflected light to be incident into the prism, and emits the dispersed light from the second surface.

公开(公告)号：US20240369899A1

公开(公告)日：2024-11-07

申请号：US18774068

申请日：2024-07-16

Applicant: FUJIFILM Corporation

Inventor： Kazuya HISANAGA ,  Yujiro YANAI ,  Yukito SAITOH

IPC: G02F1/31

Abstract: Provided is a wavelength selective switch where loss caused by a twisted effect of liquid crystal molecules of a LCOS peripheral part is reduced and the loss is small. The wavelength selective switch includes: one or more input ports; one or more output ports; a polarization controller that adjusts a polarization state of light incident from the input ports; a dispersive element that demultiplexes wavelength-multiplexed light incident from the input ports; and a deflection element that controls deflection of the demultiplexed light, in which the deflection element is a liquid crystal on silicon (LCOS) including an optical compensation layer that is provided on an incident surface to compensate for diffraction loss of a peripheral part.

公开(公告)号：US20240275514A1

公开(公告)日：2024-08-15

申请号：US18627762

申请日：2024-04-05

Applicant: FUJIFILM Corporation

Inventor： Kazuya HISANAGA ,  Yujiro YANAI ,  Makoto KAMO

IPC: H04J14/06 ,  G02B5/30 ,  H04B10/532

CPC classification number: H04J14/06 ,  G02B5/3083 ,  H04B10/532

Abstract: According to the present invention, a multiplexing optical communication system including a simple and high-efficiency optical system can be provided. The optical communication system includes an optical transmitter, a transmission path, and an optical receiver, in which the optical transmitter includes a polarized light source, a polarizing plate, a patterned retardation plate that converts light from the polarized light source into a plurality of optical vortices, a modulator, and a multiplexer.