公开(公告)号：US20070287009A1

公开(公告)日：2007-12-13

申请号：US10584412

申请日：2004-12-22

申请人： Shuhei Okude ,  Tetsuya Toyoshima ,  Kohei Arakawa

发明人： Shuhei Okude ,  Tetsuya Toyoshima ,  Kohei Arakawa

IPC分类号： B32B9/00 ,  B32B7/02 ,  G02B1/11 ,  G02B5/30 ,  G02F1/1335

CPC分类号： G02B5/305 ,  Y10T428/31504

摘要： A polarizing plate protective film including a base film and a low-refractive-index layer formed on the base film, the low-refractive-index layer including a metal oxide complex and inorganic microparticles and having a refractive index of 1.25 to 1.37, the metal oxide complex being formed from a compound shown by the following formula (1): MXn (wherein M represents a metal atom or a semimetal atom, X represents an alkoxy group or the like, and n represents the valence of M) or a partial hydrolysate or a complete hydrolysate of the compound shown by the formula (1), and having an —(O-M)m-O— bond (wherein M is the same as defined above, and m represents a positive integer) in the molecule; a reflection preventive polarizing plate using the polarizing plate protective film, and an optical product including the reflection preventive polarizing plate. According to the present invention, a polarizing plate protective film including a low-refractive-index layer exhibiting antireflection effects, exhibiting sufficient scratch resistance as a protective film for a polarizing plate, and showing only a small amount of warping when bonded to a polarizing plate, a reflection preventive polarizing plate, and an optical product can be provided.

摘要翻译： 一种偏振片保护膜，包括形成在基膜上的基膜和低折射率层，低折射率层包括金属氧化物络合物和无机微粒，折射率为1.25至1.37，金属 氧化物络合物由下式（1）表示的化合物形成：MX（其中M表示金属原子或半金属原子，X表示烷氧基等，n表示 M的化合价）或式（1）所示化合物的部分水解产物或完全水解产物，并且具有 - （OM）m -O- -O-（其中M与定义相同） 以上，m表示正整数） 使用该偏振片保护膜的防反射偏振片和包括防反射偏振片的光学产品。 根据本发明，一种包含具有抗反射效果的低折射率层的偏振片保护膜，作为偏振片的保护膜显示出足够的耐擦伤性，并且当结合到偏振片时仅显示少量的翘曲 可以提供防反射偏振片和光学产品。

公开(公告)号：US20090317592A1

公开(公告)日：2009-12-24

申请号：US12519996

申请日：2007-12-14

申请人： Yasumasa Yoshitomi ,  Masanori Yoshihara ,  Kohei Arakawa

发明人： Yasumasa Yoshitomi ,  Masanori Yoshihara ,  Kohei Arakawa

IPC分类号： B32B3/10 ,  G02B5/22

CPC分类号： G02B5/3016 ,  B32B3/30 ,  B32B7/02 ,  B32B27/08 ,  B32B27/16 ,  B32B27/20 ,  B32B27/281 ,  B32B27/302 ,  B32B27/308 ,  B32B2250/02 ,  B32B2250/03 ,  B32B2250/04 ,  B32B2250/246 ,  B32B2250/40 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2255/28 ,  B32B2264/0207 ,  B32B2307/412 ,  B32B2307/536 ,  B32B2307/538 ,  B32B2307/546 ,  B32B2551/00 ,  Y10T428/24364

摘要： There is provided an optical film comprising: a multilayer base material film comprising an a-layer composed of a resin material (a) having a flexural modulus of 3 GPa to 4 GPa and a b-layer composed of a resin material (b) having a flexural modulus lower than the flexural modulus of the resin material (a), at least one of outer surfaces of the base material film being roughened by an emboss process or a blast process; and a functional layer, such as a hard coat layer and an anti-reflective layer, laminated on the roughened surface of the base material film. The optical film is used as a protective film for a liquid crystal display element, such as a polarizing plate.

摘要翻译： 提供了一种光学膜，其包括：多层基材膜，其包含由挠曲模量为3GPa至4GPa的树脂材料（a）和由树脂材料（b）组成的b层构成的a层，所述树脂材料具有 弯曲模量低于树脂材料（a）的挠曲模量，基材膜的至少一个外表面通过压花加工或喷砂处理而粗糙化; 以及层叠在基材膜的粗糙面上的功能层，例如硬涂层和抗反射层。 光学膜用作液晶显示元件如偏振片的保护膜。

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：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.

公开(公告)号：US06400433B1

公开(公告)日：2002-06-04

申请号：US09435620

申请日：1999-11-08

申请人： Kohei Arakawa ,  Ken Kawata ,  Mitsuyoshi Ichihashi

发明人： Kohei Arakawa ,  Ken Kawata ,  Mitsuyoshi Ichihashi

IPC分类号： G02F11335

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.

摘要翻译： 圆偏振板包括线偏振膜和四分之一波片。 四分之一波片包括光学各向异性层A和光学各向异性层B.四分之一波片具有这样的光学特性，即当在450nm的波长处测量延迟值时，延迟值基本上是波长的四分之一， 550nm和650nm。 光学各向异性层A和B中的一个是由液晶分子制成的层，另一个是聚合物膜或由液晶分子制成的层。

公开(公告)号：US5528400A

公开(公告)日：1996-06-18

申请号：US487680

申请日：1995-06-07

申请人： Kohei Arakawa

发明人： Kohei Arakawa

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

CPC分类号： G02F1/133632 ,  G02F1/133634

摘要： A liquid crystal display device is composed of a liquid crystal cell having TN liquid crystal, a pair of polarizing plates arranged on both sides of the cell comprising a polarizer and a pair of protective films provided both sides of the polarizer and an optical compensatory sheet between the cell and the polarizing plate. The optical compensatory sheet comprises at least two optically anisotropic films having optically negative uniaxial property, one film having an optic axis in the direction of the normal of the film and other film having an optic axis in a direction inclined at 5-50 degrees from the normal, and the sum of retardation value of the film having an optic axis in the direction of the normal and retardation values of two protective films existing between the polarizers is from 100 to 400 nm.

摘要翻译： 液晶显示装置由具有TN液晶的液晶单元，配置在包含偏振器的单元两侧的一对偏光板和设置在偏振片两侧的一对保护膜和位于偏振片两侧的光学补偿片之间 电池和偏光板。 该光学补偿片包括具有光学负单轴性质的至少两个光学各向异性膜，一个膜沿着膜的法线方向具有光轴，而另一个膜具有沿着与该膜的5-50度倾斜的方向的光轴 正常，并且在偏光板之间存在两个保护膜的正常方向和延迟值的具有光轴的膜的延迟值之和为100〜400nm。

公开(公告)号：US4572813A

公开(公告)日：1986-02-25

申请号：US638941

申请日：1984-08-08

申请人： Kohei Arakawa

发明人： Kohei Arakawa

IPC分类号： D01F9/12 ,  D01F9/127

CPC分类号： B82Y30/00 ,  D01F9/12 ,  D01F9/1272 ,  D01F9/1275 ,  D01F9/1276 ,  D01F9/1278

摘要： A process of preparing carbon fibers in a floating state by reacting a mixed gas consisted of a gas of organic metal compound or compounds, a carrier gas and desirably a gas of carbon compound or compounds at the elevated temperature of 600.degree. to 1300.degree. C. is disclosed, in which the fine carbon fibers having a diameter of 0.05 to 2 .mu.m, a length of 2 to 3000 .mu.m and an aspect ratio of 2 to 30,000 as well as a high degree of preferred orientation of carbon layers may be produced in a high yield and a high productivity.

摘要翻译： 通过使由有机金属化合物或化合物的气体，载气和期望的碳化合物或化合物的气体组成的混合气体在600〜1300℃的高温下反应，制备浮动状态的碳纤维的方法。 公开了其中可以生产直径为0.05至2μm，长度为2至3000μm，纵横比为2至30,000的细碳纤维以及碳层的高度优选取向 产量高，生产效率高。

公开(公告)号：US20110069257A1

公开(公告)日：2011-03-24

申请号：US12957041

申请日：2010-11-30

申请人： Shunsuke YAMANAKA ,  Kohei Arakawa

发明人： Shunsuke YAMANAKA ,  Kohei Arakawa

IPC分类号： G02F1/1335 ,  B29C65/00

CPC分类号： G02F1/13363 ,  G02B5/305 ,  G02F2001/133637 ,  Y10T156/1043 ,  Y10T428/1036 ,  Y10T428/1041

摘要： An optical laminate having layer A having a resin having a negative intrinsic birefringence and at least one layer B having a transparent resin, having substantially no orientation and laminated at least on one face of layer A and satisfies a relation |Re(A)|>|Re(B)|, wherein Re(A) and Re(B) represent in-plane retardations of layer A and layer B, respectively, measured with light having a wavelength of 400 to 700 nm, an optical element having a laminate of the optical laminate and a polarizer plate, and a liquid crystal display device using at least one sheet of the optical laminate. In the liquid crystal display device, optical compensation can be made in accordance with the mode of the liquid crystal display by the three dimensional control of the refractive index, and the liquid crystal display device provides an image display with liquid crystals exhibiting small change in the phase contrast depending on the viewing angle.

摘要翻译： 具有层A具有负的固有双折射的树脂和至少一层具有透明树脂的层B，其基本上没有取向并层压在层A的至少一个面上，并且满足关系| Re（A）|> | Re（B）|，其中Re（A）和Re（B）分别表示用波长为400至700nm的光测量的层A和层B的面内延迟，光学元件具有 光学层叠体和偏光板，以及使用至少一片光学层叠体的液晶显示装置。 在液晶显示装置中，通过折射率的三维控制可以根据液晶显示器的模式进行光学补偿，并且液晶显示装置提供具有小变化的液晶的图像显示 取决于视角的相位对比度。