公开(公告)号：US06734932B2

公开(公告)日：2004-05-11

申请号：US10041829

申请日：2002-01-07

申请人： Sadahiro Nakanishi ,  Minoru Miyatake ,  Shusaku Nakano ,  Amane Mochizuki

发明人： Sadahiro Nakanishi ,  Minoru Miyatake ,  Shusaku Nakano ,  Amane Mochizuki

IPC分类号： G02F11335

CPC分类号： G02B5/0236 ,  G02B5/0257 ,  G02B5/3016 ,  G02F1/133528

摘要： An optical diffusing plate that gives a anisotropic scattering of a linearly polarized light and has an excellent diffusion property in a scattering direction, and that is suitable for improving visibility, brightness of a liquid crystal display, comprising a birefringent film and a minute domain with a birefringent characteristic different from the birefringent film in a dispersed state in the birefringent film, the birefringent film comprises a birefringent stretched film, and the minute domain comprises a positive uniaxial liquid crystal polymer, wherein a length of the minute domain in a direction of stretching axis is longer than a length in a direction orthogonal to the stretching axis, and the liquid crystal polymer is aligned perpendicularly to a stretching axis of the birefringent stretched film.

摘要翻译： 一种光散射板，其产生线偏振光的各向异性散射，并且在散射方向上具有优异的扩散性，并且适于提高可见度，液晶显示器的亮度，包括双折射膜和微区域 在双折射膜中分散状态下与双折射膜不同的双折射特性，双折射膜包括双折射拉伸膜，微小区域包括正单轴液晶聚合物，其中沿着拉伸轴方向的微小区域的长度 长于与拉伸轴正交的方向的长度，液晶聚合物垂直于双折射拉伸膜的拉伸轴取向。

公开(公告)号：US06706339B1

公开(公告)日：2004-03-16

申请号：US09558323

申请日：2000-04-26

申请人： Minoru Miyatake ,  Takafumi Sakuramoto

发明人： Minoru Miyatake ,  Takafumi Sakuramoto

IPC分类号： G02F11336

CPC分类号： G02B5/0242 ,  C09K19/3852 ,  C09K19/60 ,  G02B5/0257 ,  G02B5/0278 ,  G02B5/0294 ,  G02B5/3016 ,  G02B5/3033 ,  Y10T428/1041

摘要： A laminate polarizer has a dichroic polarizing sheet and a polarizing and scattering sheet showing anisotropy in scattering properties depending on a direction of polarization and being laminated on the dichroic polarizing sheet. An absorption axis of the dichroic polarizing sheet and an optical axis of the polarizing and scattering sheet in which polarized light is intensely scattered are in parallel to each other. A liquid crystal display is provided so that this laminate polarizer is disposed on a light source side of a liquid crystal panel as a polarizer.

摘要翻译： 叠层型偏振片具有二向色性偏振片和偏振光散射片，其偏振光方向的散射特性呈现各向异性，层叠在二向色性偏振片上。 二向色偏光片的吸收轴和偏振光散射片的偏振光和散射片的光轴彼此平行。 提供一种液晶显示器，使得该层叠偏振片设置在作为偏振器的液晶面板的光源侧。

公开(公告)号：US06392802B1

公开(公告)日：2002-05-21

申请号：US09730859

申请日：2000-12-07

申请人： Minoru Miyatake ,  Takafumi Sakuramoto

发明人： Minoru Miyatake ,  Takafumi Sakuramoto

IPC分类号： G02B2728

摘要： An optical film is disclosed which is reduced in diffuse reflection while retaining anisotropy in the scattering of a linearly polarized light and is practically usable in a light diffuser film or viewing-side polarizing film for liquid crystal displays and the like. The optical film comprises a light-transmitting resin and dispersedly contained therein minute regions differing from the light-transmitting resin in birefringent characteristics, wherein the difference in refractive index between the minute regions and the light-transmitting resin in a direction perpendicular to the axis direction in which a linearly polarized light has a maximum transmittance, &Dgr;n1, is from 0.03 to 0.5 and that in the maximum-transmittance axis direction, &Dgr;n2, is smaller than 0.03, and the diffuse reflectance of linearly polarized light in the &Dgr;n1 direction is lower than 30%. Also disclosed are: an optical element comprising two or more layers of the optical film, wherein the layers are superposed such that the &Dgr;n1 directions for any of the layers are parallel to those for the adjacent layers; and an optical element comprising a multilayer structure which comprises at least one of a polarizing film, retardation film, transparent resin plate, and reflecting layer and one or more layers of the optical film.

公开(公告)号：US06236439B1

公开(公告)日：2001-05-22

申请号：US09294193

申请日：1999-04-20

申请人： Yuji Saiki ,  Minoru Miyatake ,  Takafumi Sakuramoto ,  Hiroyuki Yoshimi

发明人： Yuji Saiki ,  Minoru Miyatake ,  Takafumi Sakuramoto ,  Hiroyuki Yoshimi

IPC分类号： G02F11335

CPC分类号： G02F1/13363 ,  G02B5/3016 ,  G02F1/133528 ,  G02F2202/40 ,  G02F2413/01 ,  G02F2413/09

摘要： A wide viewing angle polarizing plate has a laminate of a birefringent film having an in-plane average phase difference of from 50 nm to 200 nm made of a transparent resin film having microscopic regions dispersed therein and a polarizing plate. The birefringent film comprises a transparent resin film having microscopic regions dispersed therein and satisfies the relationships &Dgr;n2≦0.03 and &Dgr;n1>&Dgr;n2 supposing that the direction of the axis along which linearly polarized light exhibits the maximum transmission is &Dgr;n2 direction, the difference in refractive index between microscopic regions in &Dgr;n2 direction and other portions is &Dgr;n2, the direction perpendicular to &Dgr;n2 direction is &Dgr;n1 direction and the difference in refractive index between microscopic regions in &Dgr;n1 direction and other portions is &Dgr;n1, and &Dgr;n1 direction and the retardation axis of said birefringent film and the transmission axis of said polarizing plate are parallel to each other and a liquid crystal display comprising same.

摘要翻译： 宽视角偏振片具有由分散有微观区域的透明树脂膜和偏振片构成的面内平均相位差为50nm〜200nm的双折射膜的层叠体。 双折射膜包括其中分散有微观区域的透明树脂膜，其满足DELTAn2 <= 0.03和DELTAn1> DELTAn2的关系，假设线偏振光呈现最大透射的轴的方向为DELTAn2方向，折射率差 在DELTAn2方向的微观区域和其他部分之间为DELTAn2，与DELTAn2方向垂直的方向为DELTAn1方向，DELTAn1方向的微观区域和其他部分之间的折射率差为DELTAn1和DELTAn1方向，并且所述双折射膜的延迟轴 并且所述偏振片的透射轴彼此平行，并且包括该偏振片的透射轴。

公开(公告)号：US10421264B2

公开(公告)日：2019-09-24

申请号：US13224063

申请日：2011-09-01

申请人： Takeharu Kitagawa ,  Takuya Nakazono ,  Shusaku Goto ,  Minoru Miyatake ,  Tomohiro Mori ,  Takashi Kamijo

发明人： Takeharu Kitagawa ,  Takuya Nakazono ,  Shusaku Goto ,  Minoru Miyatake ,  Tomohiro Mori ,  Takashi Kamijo

IPC分类号： B32B41/00 ,  B26D11/00 ,  B26D1/15 ,  G02B5/30

摘要： A method of producing a roll of an optical film laminate strip includes the steps of: forming an optical film laminate which includes an optical film having a continuous web of polarizing film, and a resin film bonded to the optical film; creating a reference mark to extend across the optical film laminate in a width direction thereof; performing a defect inspection for detecting a defect existing in the optical film, and, when a defect is detected, recording a position of the defect in the form of a laminate widthwise position and a laminate lengthwise position as measured from the reference mark; cutting the optical film laminate along a direction parallel to the length direction to form a plurality of continuous webs of laminate strips; based on the widthwise position of the defect detected by the defect inspection, determining which of the cut laminate strips has the defect, and, with respect to a specific laminate strip which is determined to have the defect, storing information about the defect together with identification information for identifying the specific laminate strip; and winding each of the laminate strips into a roll.

公开(公告)号：US09645292B2

公开(公告)日：2017-05-09

申请号：US13595532

申请日：2012-08-27

申请人： Shusaku Goto ,  Minoru Miyatake ,  Tomohiro Mori ,  Kentaro Yoshida ,  Takeharu Kitagawa

发明人： Shusaku Goto ,  Minoru Miyatake ,  Tomohiro Mori ,  Kentaro Yoshida ,  Takeharu Kitagawa

IPC分类号： G02B5/30 ,  B29C55/02 ,  B32B27/06 ,  G02B1/08 ,  B29K29/00 ,  B29L9/00

CPC分类号： G02B5/3033 ,  Y10T428/265

摘要： A method for manufacturing a thin high-performance polarizing film includes coating a polyvinyl alcohol type resin on a resin substrate having a thickness of at least 20 μm and then drying the resin to thereby form a polyvinyl alcohol type resin layer, immersing thus produced polyvinyl alcohol type resin layer in a dyeing solution including a dichroic material to thereby have the dichroic material impregnated in the polyvinyl alcohol type resin layer, stretching the polyvinyl alcohol type resin layer having the dichroic material impregnated therein together with the resin substrate in a boric acid solution such that a total stretching ratio of 5.0 or more of the original length is achieved.

公开(公告)号：US09164210B2

公开(公告)日：2015-10-20

申请号：US14130211

申请日：2012-07-25

申请人： Hiroaki Sawada ,  Tatsuya Araki ,  Seiji Kondo ,  Minoru Miyatake

发明人： Hiroaki Sawada ,  Tatsuya Araki ,  Seiji Kondo ,  Minoru Miyatake

IPC分类号： G02B5/30 ,  G02F1/1335

CPC分类号： G02B5/3041 ,  G02B5/305 ,  G02F1/133536 ,  G02F2201/54

摘要： There is provided an optical laminate that significantly suppresses the warping of a liquid crystal panel and can realize high contrast. An optical laminate of the present invention includes: a polarizing film having a thickness of 10 μm or less; and a reflective polarization film. A liquid crystal panel of the present invention includes: a liquid crystal cell; and the optical laminate of the present invention. According to another aspect of the present invention, an optical laminate set is provided. The optical laminate set includes: a first optical laminate that is the optical laminate of the present invention as described above; and a second optical laminate including a polarizing film having a thickness larger than the thickness of the polarizing film of the first optical laminate by 5 μm or more.

摘要翻译： 提供了能够显着抑制液晶面板翘曲的光学层叠体，能够实现高对比度。 本发明的光学层叠体包括：厚度为10μm以下的偏光膜; 和反射偏振膜。 本发明的液晶面板包括：液晶单元; 和本发明的光学层叠体。 根据本发明的另一方面，提供了一种光学层叠组件。 光学层叠体包括：如上所述的作为本发明的光学层叠体的第一光学层叠体; 以及第二光学层叠体，其具有比第一光学层叠体的偏振膜的厚度大5μm以上的偏振膜。

公开(公告)号：US09041882B2

公开(公告)日：2015-05-26

申请号：US13989583

申请日：2011-11-15

申请人： Shunsuke Shutou ,  Minoru Miyatake

发明人： Shunsuke Shutou ,  Minoru Miyatake

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

CPC分类号： G02F1/133528 ,  G02B5/3033 ,  G02F1/133526 ,  G02F2001/133538 ,  G02F2001/133631

摘要： There is provided an optical laminate which comprises: a polarizing film wherein a thin polarizing layer is laminated on one main surface of a substrate; and an optical element (lens array). The thin polarizing layer has a thickness of 8 μm or less. The substrate has a thickness of 20 μm to 80 μm. The optical element is a pattern retardation plate including a plurality of regions having different slow axis directions.

摘要翻译： 提供一种光学层叠体，其包括：偏振膜，其中薄偏振层层压在基板的一个主表面上; 和光学元件（透镜阵列）。 薄偏振层的厚度为8μm以下。 基板的厚度为20μm〜80μm。 光学元件是包括具有不同慢轴方向的多个区域的图案延迟板。

公开(公告)号：US08953118B2

公开(公告)日：2015-02-10

申请号：US13512673

申请日：2010-11-26

申请人： Akinori Nishimura ,  Hiroyuki Takemoto ,  Takehito Fuchida ,  Minoru Miyatake ,  Shunsuke Shutou

发明人： Akinori Nishimura ,  Hiroyuki Takemoto ,  Takehito Fuchida ,  Minoru Miyatake ,  Shunsuke Shutou

IPC分类号： G02F1/1335

CPC分类号： G02F1/133606 ,  G02F1/133504 ,  G02F2001/133607

摘要： A liquid crystal display apparatus according to an embodiment of the invention includes: a liquid crystal cell; polarizing plates placed on both sides of the liquid crystal cell; a light diffusing element provided outside of the polarizing plate on a viewer side; and a backlight unit provided outside of the polarizing plate on an opposite side of the viewer side. The backlight unit includes a collimated light source device that emits collimated light having a brightness half-value angle of 3° to 35° toward the liquid crystal cell, and a ratio Fw(BL)/Fw(FD) between a diffused light half-value angle Fw(FD) of the light diffusing element and the brightness half-value angle Fw(BL) of the collimated light is 0.5 or less.

摘要翻译： 根据本发明实施例的液晶显示装置包括：液晶单元; 放置在液晶单元两侧的偏光板; 设置在观察者侧的偏振片的外侧的光漫射元件; 以及设置在观察者侧的相对侧的偏振片的外侧的背光单元。 背光单元包括：朝向液晶单元发射具有3°〜35°的亮度半值角的准直光的准直光源装置，以及散射光半衰期的比率Fw（BL）/ Fw（FD） 光散射元件的角度Fw（FD）和准直光的亮度半值角Fw（BL）为0.5以下。

公开(公告)号：US08771454B2

公开(公告)日：2014-07-08

申请号：US13225333

申请日：2011-09-02

申请人： Shusaku Goto ,  Takeharu Kitagawa ,  Minoru Miyatake ,  Tomohiro Mori ,  Takashi Kamijo

发明人： Shusaku Goto ,  Takeharu Kitagawa ,  Minoru Miyatake ,  Tomohiro Mori ,  Takashi Kamijo

IPC分类号： B29C65/00 ,  B32B7/02 ,  B32B3/00 ,  B29D11/00

CPC分类号： G02B5/30 ,  B29C55/026 ,  B29C65/00 ,  B29D11/00 ,  B29K2029/04 ,  B29K2067/00 ,  B29K2995/0034 ,  G02B1/105 ,  G02B1/14 ,  G02B5/3033 ,  G02B5/3083 ,  G02F1/133528 ,  G02F2001/133638 ,  G02F2201/50 ,  G02F2202/22 ,  G02F2202/28 ,  H01L2924/30107 ,  Y10T428/1041 ,  Y10T428/2495 ,  Y10T428/265 ,  H01L2924/00

摘要： An optical film laminate includes a substrate including a crystallizable ester type thermoplastic resin in the form of a continuous web; and a polarizing film including a polyvinyl alcohol type resin layer formed on the substrate, said polarizing film including a dichroic material impregnated therein in a molecularly oriented state, wherein the polarizing film is formed by providing a laminate including the polyvinyl alcohol type resin layer formed on a substrate including a crystallizable ester type thermoplastic resin in an amorphous state and subjecting the laminate to a 2-stage stretching process including a preliminary in-air stretching and an in-boric-acid-solution stretching under a temperature maintaining the amorphous state of the substrate, such that the polyvinyl alcohol type resin layer is stretched to a thickness of 10 μm or less, the polarizing film having optical properties based on the formulae P>−(100.929T−42.4−1) ×100 (where T

摘要翻译： 光学膜层叠体包括：基材，其包含连续纤维网形式的可结晶酯型热塑性树脂; 以及偏振膜，其包含在所述基板上形成的聚乙烯醇型树脂层，所述偏振膜在分子取向状态下包含浸渍在其中的二色性材料，其中，所述偏振膜通过提供层叠体形成，所述层压体包含形成在 包括非晶状态的可结晶的酯型热塑性树脂的基材，并且在保持非晶态的温度的温度下对层压体进行包括初步空气中拉伸和硼酸 - 酸溶液拉伸的两段拉伸工艺 基板，使得聚乙烯醇型树脂层被拉伸至10μm以下的厚度，具有基于式P> - （100.929T-42.4-1）×100（其中T <42.3）的光学性质的偏振膜， P≥999（T≥42.3）。