公开(公告)号：US20060078692A1

公开(公告)日：2006-04-13

申请号：US10518042

申请日：2003-06-16

申请人： Toshihide Murakami ,  Takashi Sato ,  Kohei Arakawa

发明人： Toshihide Murakami ,  Takashi Sato ,  Kohei Arakawa

IPC分类号： C09K19/00

CPC分类号： G02B5/3083 ,  G02B5/3016 ,  Y10T428/1041

摘要： An optical laminate comprising a cholesteric liquid crystal layer and a ¼ wavelength plate laminated one upon another, characterized in that the ¼ wavelength plate comprises at least one layer (layer A) consisting of a material having a positive intrinsic birefringence least one layer (layer B) consisting of a material having a negative intrinsic double refraction value, the orientations of molecular chains in the layer A and the layer B are equal to each other, and a variation in thickness of the ¼ wavelength plate is below 5%; a polarization light source device provided with this optical laminate; and a liquid crystal display unit provided with this polarization light source device. The optical laminate which delivers an excellent brightness improving effect, is free from a variation in in-plane brightness, and ensures a long-term, stable brightness improving effect; and the polarized light source device and the liquid crystal display unit provided with this optical laminate are provided.

摘要翻译： 一种包括彼此层叠的胆甾醇型液晶层和1/4波长板的光学层叠体，其特征在于，1/4波长板包括至少一层（层A），该层由具有正本征双折射至少一层的材料（层B ）由具有负的固有双折射值的材料组成，层A和层B中分子链的取向彼此相等，并且1/4波片的厚度变化小于5％; 设置有该光学层叠体的偏振光源装置; 以及设置有该偏振光源装置的液晶显示单元。 提供优异的亮度提高效果的光学层叠体没有面内亮度的变化，并且确保长期，稳定的亮度提高效果; 设置有该光学层叠体的偏振光源装置和液晶显示装置。

公开(公告)号：US07872803B2

公开(公告)日：2011-01-18

申请号：US11921091

申请日：2006-05-29

申请人： Mitsugu Uejima ,  Toshihide Murakami ,  Akiyoshi Shibuya ,  Megumi Fujita ,  Masahiko Hayashi ,  Kohei Arakawa

发明人： Mitsugu Uejima ,  Toshihide Murakami ,  Akiyoshi Shibuya ,  Megumi Fujita ,  Masahiko Hayashi ,  Kohei Arakawa

IPC分类号： G02B5/30

CPC分类号： G02B5/3058 ,  G02F1/133528 ,  G02F2001/133548 ,  Y10S359/90 ,  Y10T156/10 ,  Y10T156/1039

摘要： A lengthy grid polarizer film comprising a lengthy resin film and a plurality of grid lines provided on the surface and/or inside of the resin film and extending substantially in parallel with each other are provided, the grid lines being made of a material G being 1.0 or more in the absolute value of the difference between the real part n1 and the imaginary part κ1 of the complex refractive index (N1=n1−iκ1), said resin film having a plurality of rows of grooves formed extending substantially in parallel with each other on its surface, and said grid line being made of a thin film of the laminated material G on the bottom face of the grooves and/or on the top face of ridges located between the adjacent grooves. A lengthy optical laminated body comprises the lengthy grid polarizer film and another lengthy polarizing optical film.

摘要翻译： 提供了一种冗长的网格偏光膜，其包括长的树脂膜和设置在树脂膜的表面和/或内部并且基本上彼此平行延伸的多个栅格线，栅格线由材料G制成为1.0 以上的复数折射率（N1 = n1-i＆kgr; 1）的实部n1和虚部1的差的绝对值，所述树脂膜具有多排形成为大致在 在其表面上彼此平行，并且所述网格线由层叠材料G的薄膜制成在凹槽的底面上和/或位于相邻凹槽之间的脊的顶面上。 一种冗长的光学层叠体包括冗长的网格偏光膜和另一个长的偏振光学膜。

公开(公告)号：US20090128904A1

公开(公告)日：2009-05-21

申请号：US11921091

申请日：2006-05-29

申请人： Mitsugu Uejima ,  Toshihide Murakami ,  Akiyoshi Shibuya ,  Megumi Fujita ,  Masahiko Hayashi ,  Kohei Arakawa

发明人： Mitsugu Uejima ,  Toshihide Murakami ,  Akiyoshi Shibuya ,  Megumi Fujita ,  Masahiko Hayashi ,  Kohei Arakawa

IPC分类号： G02B5/30 ,  B32B38/00 ,  B32B38/06 ,  B32B37/00

CPC分类号： G02B5/3058 ,  G02F1/133528 ,  G02F2001/133548 ,  Y10S359/90 ,  Y10T156/10 ,  Y10T156/1039

摘要： A lengthy grid polarizer film comprising a lengthy resin film and a plurality of grid lines provided on the surface and/or inside of the resin film and extending substantially in parallel with each other are provided, the grid lines being made of a material G being 1.0 or more in the absolute value of the difference between the real part n1 and the imaginary part κ1 of the complex refractive index (N1=n1−iκ1), said resin film having a plurality of rows of grooves formed extending substantially in parallel with each other on its surface, and said grid line being made of a thin film of the laminated material G on the bottom face of the grooves and/or on the top face of ridges located between the adjacent grooves. A lengthy optical laminated body comprises the lengthy grid polarizer film and another lengthy polarizing optical film.

摘要翻译： 提供了一种冗长的网格偏光膜，其包括长的树脂膜和设置在树脂膜的表面和/或内部并且基本上彼此平行延伸的多个栅格线，栅格线由材料G制成为1.0 以上的复数折射率（N1 = n1-ikappa1）的实部n1和虚部kappa之间的差的绝对值，所述树脂膜具有形成为大致平行延伸的多排槽 在其表面上，并且所述网格线由层叠材料G的薄膜制成在凹槽的底面上和/或位于相邻凹槽之间的脊的顶面上。 一种冗长的光学层叠体包括冗长的网格偏光膜和另一个长的偏振光学膜。

公开(公告)号：US20050249890A1

公开(公告)日：2005-11-10

申请号：US10997951

申请日：2004-11-29

申请人： Toshihide Murakami ,  Kohei Arakawa

发明人： Toshihide Murakami ,  Kohei Arakawa

IPC分类号： B29C55/04 ,  B32B7/02 ,  B32B37/12 ,  G02B5/30 ,  G02F1/1335 ,  C09K19/00 ,  B32B9/04

CPC分类号： G02B5/3083 ,  B29C55/045 ,  B32B7/02 ,  B32B27/08 ,  B32B37/12 ,  B32B2038/0028 ,  B32B2307/40 ,  B32B2307/42 ,  G02B5/305 ,  G02F1/133536 ,  Y10T428/10 ,  Y10T428/1036 ,  Y10T428/31504

摘要： Provided are: a long optical laminate prepared by laminating two obliquely stretched long phase-difference films so that the respective delayed-phase axes cross each other at a specified angle, while at least one of the two phase-difference films is a film containing residual volatile component by 1000 ppm or less; a long optical element prepared by laminating the optical laminate on one surface of polarization film; a long broad-band ¼ wavelength plate; an optical member prepared by laminating a circularly polarized light separating layer of cholesteric liquid crystal on one surface of the broad-band ¼ wavelength plate; a broad-band circular element using the broad-band ¼ wavelength plate; and an optical product having the broad-band circular polarization element. The invention provides long optical laminates having high optical characteristics stability, long broad-band ¼ wavelength plates, long optical elements, broad-band circular polarization elements, and various optical products having the broad-band circular polarization element.

摘要翻译： 提供：通过层叠两个倾斜拉伸的长相差膜使得各个延迟相位轴以特定角度彼此交叉而制成的长的光学层叠体，而两个相位差膜中的至少一个是含有残留的膜 挥发性成分减少1000ppm以下; 通过将光学层压体层压在偏振膜的一个表面上制备的长的光学元件; 长波段¼波长板; 通过在宽带¼波长板的一个表面上层叠胆甾型液晶的圆偏振光分离层而制备的光学部件; 使用宽带¼波长板的宽带圆形元件; 以及具有宽带圆偏振元件的光学产品。 本发明提供具有高光学特性稳定性的长光学层压板，长宽带¼波长板，长光学元件，宽带圆偏振元件以及具有宽带圆偏振元件的各种光学产品。

公开(公告)号：US07354632B2

公开(公告)日：2008-04-08

申请号：US10997951

申请日：2004-11-29

申请人： Toshihide Murakami ,  Kohei Arakawa

发明人： Toshihide Murakami ,  Kohei Arakawa

IPC分类号： G02F1/13363 ,  G02B5/30

CPC分类号： G02B5/3083 ,  B29C55/045 ,  B32B7/02 ,  B32B27/08 ,  B32B37/12 ,  B32B2038/0028 ,  B32B2307/40 ,  B32B2307/42 ,  G02B5/305 ,  G02F1/133536 ,  Y10T428/10 ,  Y10T428/1036 ,  Y10T428/31504

摘要： Provided are: a long optical laminate prepared by laminating two obliquely stretched long phase-difference films so that the respective delayed-phase axes cross each other at a specified angle, while at least one of the two phase-difference films is a film containing residual volatile component by 1000 ppm or less; a long optical element prepared by laminating the optical laminate on one surface of polarization film; a long broad-band ¼ wavelength plate; an optical member prepared by laminating a circularly polarized light separating layer of cholesteric liquid crystal on one surface of the broad-band ¼ wavelength plate; a broad-band circular element using the broad-band ¼ wavelength plate; and an optical product having the broad-band circular polarization element. The invention provides long optical laminates having high optical characteristics stability, long broad-band ¼ wavelength plates, long optical elements, broad-band circular polarization elements, and various optical products having the broad-band circular polarization element.

摘要翻译： 提供：通过层叠两个倾斜拉伸的长相差膜使得各个延迟相位轴以特定角度彼此交叉而制成的长的光学层叠体，而两个相位差膜中的至少一个是含有残留的膜 挥发性成分减少1000ppm以下; 通过将光学层压体层压在偏振膜的一个表面上制备的长的光学元件; 长波段¼波长板; 通过在宽带¼波长板的一个表面上层叠胆甾型液晶的圆偏振光分离层而制备的光学部件; 使用宽带¼波长板的宽带圆形元件; 以及具有宽带圆偏振元件的光学产品。 本发明提供具有高光学特性稳定性的长光学层压板，长宽带¼波长板，长光学元件，宽带圆偏振元件以及具有宽带圆偏振元件的各种光学产品。

公开(公告)号：US20060040106A1

公开(公告)日：2006-02-23

申请号：US10920177

申请日：2004-08-18

申请人： Kohei Arakawa ,  Katsuhiro Kurosaki ,  Toshihide Murakami

发明人： Kohei Arakawa ,  Katsuhiro Kurosaki ,  Toshihide Murakami

IPC分类号： B32B27/00

CPC分类号： B29C55/023 ,  B29K2995/0032 ,  B32B7/02 ,  B32B27/08 ,  B32B37/153 ,  B32B38/0012 ,  B32B2038/0028 ,  B32B2307/40 ,  G02B5/3083 ,  Y10T428/31504 ,  Y10T428/31855 ,  Y10T428/31917 ,  Y10T428/31924 ,  Y10T428/31928 ,  Y10T428/31931 ,  Y10T428/31935 ,  Y10T428/31938

摘要： An optical laminate film comprising a layer (A) comprising a material having a negative intrinsic birefringence value as a primary component; and a layer (B) comprising a transparent resin as a primary component which is laminated to at least one side of the layer (A). The optical laminate film satisfies the following conditions: (a) ns>(nx+ny)/2(b) 0≦dispersion of retardation Re≦+10 nm, wherein retardation Re is represented by the formula [|nx−ny|×D] where D represents thickness (μm) of the laminated film, nz represents a refractive index in the thickness direction, and nx and ny each represent a refractive index, respectively in two directions orthogonal to each other and both of which are perpendicular to the thickness direction, all of the refractive indices being measured using light with wavelength of 550 nm.

摘要翻译： 一种光学层压膜，其包括包含具有负的固有双折射值作为主要成分的材料的层（A） 以及层叠在层（A）的至少一侧的作为主要成分的透明树脂的层（B）。 光学层叠膜满足以下条件：<？in-line-formula description =“In-line formula”end =“lead”？>（a）n >（n×x （b）0 <=延迟的离散度Re = + 10nm，其中延迟值Re由式[| n x -n x y | x D]表示，其中D表示层叠膜的厚度（mum），n z 表示厚度方向上的折射率，并且n×x和n Y y分别代表与两个正交的两个方向上的折射率 其他两个都与厚度方向垂直，所有的折射率都是使用波长为550nm的光来测量的。

公开(公告)号：US07638205B2

公开(公告)日：2009-12-29

申请号：US10920177

申请日：2004-08-18

申请人： Kohei Arakawa ,  Katsuhiro Kurosaki ,  Toshihide Murakami

发明人： Kohei Arakawa ,  Katsuhiro Kurosaki ,  Toshihide Murakami

IPC分类号： B32B27/08

CPC分类号： B29C55/023 ,  B29K2995/0032 ,  B32B7/02 ,  B32B27/08 ,  B32B37/153 ,  B32B38/0012 ,  B32B2038/0028 ,  B32B2307/40 ,  G02B5/3083 ,  Y10T428/31504 ,  Y10T428/31855 ,  Y10T428/31917 ,  Y10T428/31924 ,  Y10T428/31928 ,  Y10T428/31931 ,  Y10T428/31935 ,  Y10T428/31938

摘要： An optical laminate film comprising a layer (A) comprising a material having a negative intrinsic birefringence value as a primary component; and a layer (B) comprising a transparent resin as a primary component which is laminated to at least one side of the layer (A). The optical laminate film satisfies the following conditions: (a) nz>(nx+ny)/2 (b) 0≦ dispersion of retardation Re≦+10 nm, wherein retardation Re is represented by the formula [|nx−ny|×D] where D represents thickness (μm) of the laminated film, nz represents a refractive index in the thickness direction, and nx and ny each represent a refractive index, respectively in two directions orthogonal to each other and both of which are perpendicular to the thickness direction, all of the refractive indices being measured using light with wavelength of 550 nm.

摘要翻译： 一种光学层压膜，其包括包含具有负的固有双折射值作为主要成分的材料的层（A） 以及层叠在层（A）的至少一侧的作为主要成分的透明树脂的层（B）。 光学层压膜满足以下条件：（a）nz>（nx + ny）/ 2（b）0 <=相位差Re <= + 10nm，其中相位差Re由式[| nx-ny | xD]其中D表示层叠膜的厚度（mum），nz表示厚度方向的折射率，nx和ny分别表示彼此正交的两个方向的折射率，两者均垂直于 厚度方向，使用波长为550nm的光测量所有的折射率。

公开(公告)号：US20090103012A1

公开(公告)日：2009-04-23

申请号：US10579738

申请日：2004-11-18

申请人： Motohiro Itadani ,  Shuhei Okude ,  Shunsuke Yamanaka ,  Kohei Arakawa

发明人： Motohiro Itadani ,  Shuhei Okude ,  Shunsuke Yamanaka ,  Kohei Arakawa

IPC分类号： G02F1/1335

CPC分类号： G02F1/134363 ,  G02F1/133634 ,  G02F2413/01 ,  G02F2413/12

摘要： A liquid crystal display device of an in-plane switching mode comprises at least an optically anisotropic member and a liquid crystal cell disposed between a pair of polarizers having absorption axes disposed approximately perpendicularly to each other, wherein nz>nx>ny (nx: a refractive index (n) in the direction of the in-plane slow axis; ny: n in the in-plane direction perpendicular to the above direction; nz: n in the direction of thickness, each at 550 nm); the optically anisotropic member comprises a layer comprising a material having a negative value of intrinsic birefringence; and the in-plane slow axis of the optically anisotropic member is approximately parallel or perpendicular to the absorption axis of a polarizer closer to the member. The antireflection property, scratch resistance and durability are excellent, the angle of field is wide, and uniform display of images with great contrast can be achieved at any angle of observation.

摘要翻译： 面内切换模式的液晶显示装置至少包括光学各向异性构件和设置在具有彼此大致垂直设置的吸收轴的一对偏振器之间的液晶单元，其中nz> nx> ny（nx：a 在平面内慢轴的方向上的折射率（n）;垂直于上述方向的面内方向的ny：n;厚度方向的nz：n，各550nm）; 光学各向异性构件包括包含具有负值的固有双折射材料的层; 并且光学各向异性构件的面内慢轴大致平行或垂直于靠近构件的偏振片的吸收轴。 抗反射性，耐擦伤性和耐久性优异，视野宽，可以在任何观察角度均匀显示具有大对比度的图像。

公开(公告)号：US20070200263A1

公开(公告)日：2007-08-30

申请号：US10592229

申请日：2005-03-10

申请人： Satoshi Tazaki ,  Kohei Arakawa ,  Kazuyuki Obuchi ,  Keisuke Tsukada ,  Naoki Murata

发明人： Satoshi Tazaki ,  Kohei Arakawa ,  Kazuyuki Obuchi ,  Keisuke Tsukada ,  Naoki Murata

IPC分类号： B29C33/40

CPC分类号： B29C45/60 ,  B29C2045/0086 ,  B29L2011/00 ,  G02B5/0242 ,  G02B5/0268

摘要： A light diffusion plate obtained by injection molding of a thermoplastic resin and having an approximately rectangular shape having a length of a diagonal line of 400 mm or longer, wherein the fluctuation in the thickness is 200 μm or smaller, the warp is 2 mm or smaller, the fluctuation in the transmittance is 8% or smaller and the dispersion in the y-value of the reflected light is 0.004 or smaller, and a process for producing the light diffusion plate are provided. The light diffusion plate exhibits the high luminance and the small unevenness in the luminance and provides a display of images having an excellent quality on liquid display devices.

摘要翻译： 通过注射成型热塑性树脂而得到的长度为400mm以上的长方形的光扩散板，厚度的波动为200μm以下，翘曲为2mm以下 ，透射率的波动为8％以下，反射光的y值的偏差为0.004以下，制造光扩散板的工序。 光漫射板具有高亮度和亮度不均匀性，并且提供在液体显示装置上具有优良品质的图像的显示。

公开(公告)号：US06593984B2

公开(公告)日：2003-07-15

申请号：US10119149

申请日：2002-04-10

申请人： Kohei Arakawa ,  Ken Kawata ,  Mitsuyoshi Ichihashi

发明人： Kohei Arakawa ,  Ken Kawata ,  Mitsuyoshi Ichihashi

IPC分类号： G02F135

CPC分类号： G02B5/3016 ,  G02F2001/133541 ,  G02F2001/133637 ,  G02F2001/133638

摘要： A circularly polarizing plate comprises a linearly polarizing membrane and a quarter wave plate. The quarter wave plate comprises an optically anisotropic layer A and an optically anisotropic layer B. The quarter wave plate has such an optical characteristic that a retardation value essentially is a quarter of a wavelength when the retardation value is measured at the wavelength of 450 nm, 550 nm and 650 nm. One of the optically anisotropic layers A and B is a layer made from liquid crystal molecules, and the other is a polymer film or a layer made from liquid crystal molecules.