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：US10266629B2

公开(公告)日：2019-04-23

申请号：US13641904

申请日：2011-05-16

申请人： Kunihiro Inui ,  Toshitsugu Hosokawa ,  Takaaki Ishii ,  Masayuki Satake ,  Kenichi Okada ,  Toshitaka Takahashi ,  Yousuke Makihata ,  Taiki Shimokuri ,  Shusaku Goto ,  Takeharu Kitagawa ,  Minoru Miyatake ,  Tomohiro Mori ,  Takashi Kamijo

发明人： Kunihiro Inui ,  Toshitsugu Hosokawa ,  Takaaki Ishii ,  Masayuki Satake ,  Kenichi Okada ,  Toshitaka Takahashi ,  Yousuke Makihata ,  Taiki Shimokuri ,  Shusaku Goto ,  Takeharu Kitagawa ,  Minoru Miyatake ,  Tomohiro Mori ,  Takashi Kamijo

IPC分类号： C08F265/06 ,  C08F220/06 ,  C09J151/06 ,  C08F220/18

摘要： An aqueous dispersion-type pressure-sensitive adhesive composition for an optical film includes a emulsion particles of a core-shell structure, wherein the emulsion particles include a (meth)acryl-based copolymer (A) having a glass transition temperature of −55° C. to 0° C. and a (meth)acryl-based copolymer (B) having a glass transition temperature of 0° C. to 180° C., in a single emulsion particle, one of the copolymers (A) and (B) forms a core layer, and another forms a shell layer, at least one of the copolymers (A) and (B) contains a carboxyl group-containing monomer, a difference of the glass transition temperatures between the copolymers (A) and (B) is 50° C. or more, and a ratio (A)/(B) (by weight) is in the range of 50/50 to 90/10.

公开(公告)号：US09442234B2

公开(公告)日：2016-09-13

申请号：US13224000

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 ,  G02B5/30

CPC分类号： G02B5/305 ,  B32B41/00 ,  B32B2457/20 ,  G02B5/3033

摘要： A method of producing a roll of an optical film laminate strip including a polarizing film includes the steps of: forming a continuous web of optical film laminate including a polarizing film which consists of a polyvinyl alcohol type resin layer and has a thickness of 10 μm or less, wherein the polarizing film is formed by performing an stretching sub-step of subjecting a laminate comprising a continuous web of thermoplastic resin substrate and a polyvinyl alcohol type resin layer formed on the substrate, to a uniaxial stretching in a lengthwise direction of the laminate based on 2-stage stretching consisting of preliminary in-air stretching and in-boric-acid-solution stretching; cutting the continuous web of optical film laminate along a direction parallel to the length direction to form at least one continuous web of laminate strip having a given width; and winding the continuous web of laminate strip having the given width into a roll.

摘要翻译： 一种制造包括偏光膜的光学膜层叠条的卷的方法包括以下步骤：形成包括由聚乙烯醇型树脂层组成的厚度为10μm的偏振膜的光学膜层叠体的连续幅材，或 其特征在于，所述偏光膜是通过对形成在所述基材上的聚乙烯醇类树脂层的包含连续纤维网的层叠体在层叠体的长度方向进行单轴拉伸的拉伸工序进行拉伸， 基于由初步空气中拉伸和硼酸溶液拉伸组成的2段拉伸; 沿着与长度方向平行的方向切割光学膜层压板的连续卷材以形成具有给定宽度的至少一个连续的层压条带; 并将具有给定宽度的层压带的连续卷材卷绕成卷。

公开(公告)号：US09158156B2

公开(公告)日：2015-10-13

申请号：US12304578

申请日：2008-06-17

申请人： Minoru Miyatake ,  Taku Yamada ,  Kuniaki Ishibashi

发明人： Minoru Miyatake ,  Taku Yamada ,  Kuniaki Ishibashi

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

CPC分类号： G02F1/13363 ,  G02B5/3025 ,  G02B5/3083 ,  G02F1/133528 ,  G02F1/133634 ,  G02F2001/133531 ,  G02F2001/133635

摘要： This invention relates to a transmissive liquid crystal display including a light source (BL), a reflective linearly-polarizing layer (Pr1), a birefringent layer (A) having specific optical properties and specific retardation properties, a light source-side absorptive linearly-polarizing layer (P1), a liquid crystal cell (LC), and a viewer-side linearly-polarizing layer (P2) which are arranged in this order. In the transmissive liquid crystal display of the invention, light leakage is suppressed in oblique directions so that black brightness can be reduced. A reduction in contrast in the normal direction can also be suppressed, which is caused by the distribution of light to the normal direction.

摘要翻译： 本发明涉及一种具有光源（BL），反射线性偏振层（Pr1），具有特定光学性质和比光延迟特性的双折射层（A）的透射型液晶显示器，光源侧吸收线性偏振层 偏振层（P1），液晶单元（LC）和观察者侧线性偏振层（P2）。 在本发明的透射式液晶显示器中，在倾斜方向上抑制了光泄漏，从而能够降低黑色亮度。 也可以抑制由于光向法线方向的分布而引起的法线方向的对比度的降低。

公开(公告)号：US09110242B2

公开(公告)日：2015-08-18

申请号：US13476743

申请日：2012-05-21

申请人： Minoru Miyatake ,  Taku Yamada ,  Kuniaki Ishibashi

发明人： Minoru Miyatake ,  Taku Yamada ,  Kuniaki Ishibashi

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

CPC分类号： G02F1/13363 ,  G02B5/3025 ,  G02B5/3083 ,  G02F1/133528 ,  G02F1/133634 ,  G02F2001/133531 ,  G02F2001/133635

摘要： This invention relates to a transmissive liquid crystal display including a light source (BL), a reflective linearly-polarizing layer (Pr1), a birefringent layer (A) having specific optical properties and specific retardation properties, a light source-side absorptive linearly-polarizing layer (P1), a liquid crystal cell (LC), and a viewer-side linearly-polarizing layer (P2) which are arranged in this order. In the transmissive liquid crystal display of the invention, light leakage is suppressed in oblique directions so that black brightness can be reduced. A reduction in contrast in the normal direction can also be suppressed, which is caused by the distribution of light to the normal direction.

公开(公告)号：US08480925B2

公开(公告)日：2013-07-09

申请号：US12413985

申请日：2009-03-30

申请人： Takehito Fuchida ,  Minoru Miyatake ,  Takashi Kamijo ,  Hideyuki Yonezawa

发明人： Takehito Fuchida ,  Minoru Miyatake ,  Takashi Kamijo ,  Hideyuki Yonezawa

IPC分类号： C09K19/00 ,  C09K19/06 ,  C09K19/34 ,  C09K19/52

CPC分类号： G02B5/3016 ,  G02F1/133634 ,  G02F2001/133638 ,  G02F2201/38 ,  G02F2201/50 ,  G02F2203/06 ,  G02F2413/07 ,  G02F2413/11 ,  G02F2413/12 ,  Y10T428/10 ,  Y10T428/1005 ,  Y10T428/1036 ,  Y10T428/1041

摘要： A depolarizing film of the present invention comprises a film containing at least one liquid crystal compound, wherein the liquid crystal compound comprises a liquid crystal compound (1) that satisfies the relation: 0.05≦Δn≦0.5, with the proviso that Δn=ne−no, ne represents an extraordinary-ray refractive index, and no represents an ordinary-ray refractive index, and the film has a haze value of 15% or less and a thickness of 1 μm to 10 μm.

摘要翻译： 本发明的去极化膜包括含有至少一种液晶化合物的膜，其中液晶化合物包含满足以下关系式的液晶化合物（1）：其中，Deltan = 0.5，Deltan = ne- 不，ne表示非常光线折射率，no表示普通光线折射率，该膜的雾度值为15％以下，厚度为1〜10μm。

公开(公告)号：US08405794B2

公开(公告)日：2013-03-26

申请号：US13255062

申请日：2010-03-15

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

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

IPC分类号： G02F1/1335 ,  B05D5/06 ,  G02B5/02

CPC分类号： G02B5/0242 ,  G02B5/3033 ,  G03B21/62

摘要： A light diffusing element of the present invention includes: a matrix containing a resin component and an ultrafine particle component; and light diffusing fine particles dispersed in the matrix, wherein refractive indices of the resin component, the ultrafine particle component, and the light diffusing fine particles satisfy the below-indicated expression (1); and the light diffusing element comprises a concentration adjusted area, which is formed in an outer portion of a vicinity of a surface of each of the light diffusing fine particles, and in which a weight concentration of the resin component decreases and a weight concentration of the ultrafine particle component increases with increasing distance from the light diffusing fine particles: |np−nA|

摘要翻译： 本发明的光漫射元件包括：含有树脂成分和超微粒成分的基质; 以及散射在基体中的微细散射光，其中树脂成分，超微粒成分和光扩散性微粒的折射率满足下述式（1）。 并且所述光散射元件包括浓缩调整区域，其形成在每个所述光散射细颗粒的表面附近的外部，并且所述树脂组分的重量浓度降低，并且所述重量浓度 超细颗粒成分随着距离光扩散微粒的距离的增加而增加：| np-nA | <| np-nB | （1）其中，nA表示基体的树脂成分的折射率，nB表示基质的超细粒子成分的折射率，np表示光扩散性微粒的折射率。

公开(公告)号：US08404066B2

公开(公告)日：2013-03-26

申请号：US13225347

申请日：2011-09-02

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： B32B38/10

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.

摘要翻译： 薄型高性能偏振片的制造方法包括在厚度为20μm以上的树脂基板上涂布聚乙烯醇型树脂，然后干燥树脂，形成聚乙烯醇型树脂层，将如此制造的聚乙烯醇 在包含二色性材料的染色溶液中形成树脂层，从而将二色性材料浸渍在聚乙烯醇型树脂层中，将其中浸渍有二色性材料的聚乙烯醇型树脂层与树脂基材一起拉伸在硼酸溶液中 总伸长率为原始长度的5.0倍以上。