公开(公告)号：US07619818B2

公开(公告)日：2009-11-17

申请号：US11569538

申请日：2005-04-05

申请人： Shuuji Yano ,  Masayuki Kawai ,  Ryouji Kinoshita

发明人： Shuuji Yano ,  Masayuki Kawai ,  Ryouji Kinoshita

IPC分类号： G02B5/30

CPC分类号： G02B5/3083 ,  G02F1/133634 ,  G02F1/134363

摘要： An elliptically polarizing plate including: a polarizer; and an optical film that includes a laminate of: a retardation film A that includes a cyclic polyolefin resin-containing thermoplastic polymer and has uniaxially-aligned positive refractive-index anisotropy characterized by nx>ny≈nz; and a retardation film B that is fixed to homeotropic alignment and has positive refractive-index anisotropy characterized by nz1>nx1≈ny1, wherein the optical film is laminated on one side of the polarizer in such a manner that a slow axis of the retardation film A is perpendicular to an absorption axis of the polarizer. The elliptically polarizing plate can suppress a reduction in contrast at wide viewing angles when applied to in-plane switching mode active matrix liquid crystal displays, and can be highly effective for improvements against color shift.

摘要翻译： 一种椭圆偏振板，包括：偏振器; 以及包括层压体的光学膜，所述层压体包括含有环状聚烯烃树脂的热塑性聚合物的延迟膜A，其特征在于nx>ny≈nz的单轴取向正折射率各向异性; 以及相位差膜B，其被固定为垂直取向并且具有以nz1>nx1≈ny1为特征的正折射率各向异性，其中光学膜以偏振器的一侧层叠的方式使得延迟膜的慢轴 A垂直于偏振器的吸收轴。 当应用于平面内切换模式有源矩阵液晶显示器时，椭圆偏振板可以抑制在宽视角下的对比度的降低，并且可以非常有效地改善对色偏移。

公开(公告)号：US20080018831A1

公开(公告)日：2008-01-24

申请号：US11569538

申请日：2005-04-05

申请人： Shuuji Yano ,  Masayuki Kawai ,  Ryouji Kinoshita

发明人： Shuuji Yano ,  Masayuki Kawai ,  Ryouji Kinoshita

IPC分类号： G02F1/1335 ,  G02B5/30

CPC分类号： G02B5/3083 ,  G02F1/133634 ,  G02F1/134363

摘要： An elliptically polarizing plate of the invention comprises: a polarizer; and an optical film that comprises a laminate of: a retardation film A that comprises a cyclic polyolefin resin-containing thermoplastic polymer and has uniaxially-aligned positive refractive-index anisotropy characterized by nx>ny≈nz, wherein nx is a refractive index in the direction of X axis along which the in-plane refractive index is maximum, ny is a refractive index in the direction of Y axis perpendicular to X axis, and nz is a refractive index in the direction of Z axis that is the direction of the thickness; and a retardation film B that is fixed to homeotropic alignment and has positive refractive-index anisotropy characterized by nz1>nx1≈ny1, wherein nx1 is a refractive index in the direction of X axis along which the in-plane refractive index is maximum, ny1 is a refractive index in the direction of Y axis perpendicular to X axis, and nz1 is a refractive index in the direction of Z axis that is the direction of the thickness, wherein the optical film is laminated on one side of the polarizer in such a manner that a slow axis of the retardation film A is perpendicular to an absorption axis of the polarizer. The elliptically polarizing plate can suppress a reduction in contrast at wide viewing angles when applied to in-plane switching mode active matrix liquid crystal displays, and can be highly effective for improvements against color shift.

摘要翻译： 本发明的椭圆偏振片包括：偏振片; 以及包含层压体的光学膜，其包含含有环状聚烯烃树脂的热塑性聚合物的延迟膜A，其特征在于nx>ny≈nz的单轴取向正折射率各向异性，其中nx为折射率 面内折射率最大的X轴方向，ny是与X轴垂直的Y轴方向的折射率，nz是Z轴方向的折射率，即Z轴的厚度方向 ; 以及相位差膜B，其被固定为垂直取向，并且具有以nz 1 / n 1 / n 2为特征的正折射率各向异性， 其中nx1是在面内折射率最大的X轴方向上的折射率，n Y 1是在Y轴方向上的折射率 垂直于X轴，nz <1>是作为厚度方向的Z轴方向的折射率，其中光学膜层叠在偏振器的一侧上，使得 延迟膜A的慢轴垂直于偏振片的吸收轴。 当应用于平面内切换模式有源矩阵液晶显示器时，椭圆偏振板可以抑制在宽视角下的对比度的降低，并且可以非常有效地改善对色偏移。

公开(公告)号：US20070091236A1

公开(公告)日：2007-04-26

申请号：US10572600

申请日：2004-09-13

申请人： Shuuji Yano ,  Ryouji Kinoshita ,  Masayuki Kawai

发明人： Shuuji Yano ,  Ryouji Kinoshita ,  Masayuki Kawai

IPC分类号： G02F1/1335 ,  G02F1/1343

CPC分类号： G02B5/3033 ,  G02B5/305

摘要： An optical film(3) of the invention comprises a polarizing plate(1), in which a transparent protective film(1b) is laminated on both sides of a polarizer(1a), and plural retardation films(2) so that an absorption axis of the polarizing plate(1) is perpendicular or parallel to slow axes of the plural retardation films(2) and the slow axes of the plural retardation films(2) are parallel to one another. An Nz value expressed by Nz=(nx1−nz1)/(nx1−ny1) is in the range of from 0.15 to 0.85 and an in-plane retardation Re1 expressed by Re1=(nx1−ny1)×d1 is in the range of from 200 to 350 nm, where in each of the plural retardation films, a direction along with the refractive index in the film plane is maximum is defined as the X-axis, a direction perpendicular to the X-axis as the Y-axis, the thickness direction of the film as the Z-axis, and where refractive indices in each axial direction are defined as nx1, ny1, and nz1, respectively, and the thickness of the film as d1 (nm). The optical film may realize an easily viewable display with high contrast ratio in a wide range and may provide a retardation value stabilized under conditions of high temperature or high humidity

摘要翻译： 本发明的光学膜（3）包括偏振板（1），其中透明保护膜（1b）层叠在偏振片（1a）的两侧，以及多个延迟膜（2），使得 偏振板（1）的吸收轴与多个延迟膜（2）的慢轴垂直或平行，并且多个延迟膜（2）的慢轴彼此平行。 由Nz =（nx1-nz1 / n1）/（nx1-n1）表示的Nz值， 在0.15至0.85的范围内，并且由Re 1表示的面内延迟Re 1 /（N 1/2） > 1 1 在200〜350nm的范围内，其中在多个延迟膜的每一个中，与膜面中的折射率一致的方向最大为 定义为X轴，垂直于X轴的方向为Y轴，膜的厚度方向为Z轴，并且其中各轴向的折射率定义为nx <1 < / SUB>，n 1＆lt; 1＆gt;和nz＆lt; 1＆gt;，膜的厚度为d 1（nm）。 光学膜可以在宽范围内实现高对比度的容易观看的显示，并且可以提供在高温或高湿度条件下稳定的延迟值

公开(公告)号：US20070002228A1

公开(公告)日：2007-01-04

申请号：US10572602

申请日：2004-09-13

申请人： Shuuji Yano ,  Ryouji Kinoshita ,  Masayuki Kawai

发明人： Shuuji Yano ,  Ryouji Kinoshita ,  Masayuki Kawai

IPC分类号： G02F1/1335 ,  G02F1/1343

CPC分类号： G02B5/3033 ,  G02B5/305

摘要： An optical film(3) of the invention comprises a polarizing plate(1) and plural retardation films(2) so that an absorption axis of the polarizing plate(1) is perpendicular or parallel to slow axes of the plural retardation films(2) and the slow axes of the plural retardation films(2) are parallel to one another. An Nz value expressed by Nz=(nx1−nz1)/(nx1−ny1) is in the range of from 0.15 to 0.85 and an in-plane retardation Re1 expressed by Re1=(nx1−ny1)×d1 is in the range of from 200 to 350 nm, where in each of the plural retardation films, a direction along with the refractive index in the film plane is maximum is defined as the X-axis, a direction perpendicular to the X-axis as the Y-axis, the thickness direction of the film as the Z-axis, and where refractive indices in each axial direction are defined as nx1, ny1, and nz1, respectively, and the thickness of the film as d1 (nm). The optical film may realize an easily viewable display with high contrast ratio in a wide range.

摘要翻译： 本发明的光学膜（3）包括偏振板（1）和多个延迟膜（2），使得偏振板（1）的吸收轴垂直或平行于多个延迟膜（2）的慢轴， 并且多个延迟膜（2）的慢轴彼此平行。 由Nz =（nx1-nz1 / n1）/（nx1-n1）表示的Nz值， 在0.15至0.85的范围内，并且由Re 1表示的面内延迟Re 1 /（N 1/2） > 1 1 在200〜350nm的范围内，其中在多个延迟膜的每一个中，与膜面中的折射率一致的方向最大为 定义为X轴，垂直于X轴的方向为Y轴，膜的厚度方向为Z轴，并且其中各轴向的折射率定义为nx <1 < / SUB>，n 1＆lt; 1＆gt;和nz＆lt; 1＆gt;，膜的厚度为d 1（nm）。 光学膜可以在宽范围内实现高对比度的容易观看的显示。

公开(公告)号：US20050018328A1

公开(公告)日：2005-01-27

申请号：US10863514

申请日：2004-06-09

申请人： Masahiro Hata ,  Ryouji Kinoshita ,  Shuuji Yano ,  Masayuki Kawai

发明人： Masahiro Hata ,  Ryouji Kinoshita ,  Shuuji Yano ,  Masayuki Kawai

IPC分类号： C08L25/04 ,  C08L69/00 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/13363

CPC分类号： G02F1/133634 ,  G02B5/3083 ,  Y10T428/1036

摘要： An optical film obtained by stretching a polymer film comprising a polycarbonate resin and a styrene resin: wherein a photoelastic coefficient is 2.0×10−11 to 6.0×10−11 m2/N, and a three dimensional refractive index is controlled so that an Nz coefficient may satisfy a relationship of Nz≦0.9 and a front retardation (Re) may satisfy a relationship of Re≧80 nm, has characteristics of giving wide viewing angle and also outstanding durability.

摘要翻译： 通过拉伸包含聚碳酸酯树脂和苯乙烯树脂的聚合物膜获得的光学膜：其中光弹性系数为2.0×10 11至6.0×10 11 m 2 / N，三维折射率为 控制使得Nz系数可以满足Nz <= 0.9和前延迟（Re）的关系可以满足Re> = 80nm的关系，具有给出宽视角的特性以及突出的耐久性。

公开(公告)号：US07130007B2

公开(公告)日：2006-10-31

申请号：US10863514

申请日：2004-06-09

申请人： Masahiro Hata ,  Ryouji Kinoshita ,  Shuuji Yano ,  Masayuki Kawai

发明人： Masahiro Hata ,  Ryouji Kinoshita ,  Shuuji Yano ,  Masayuki Kawai

IPC分类号： G02F1/13363 ,  G02F1/139

CPC分类号： G02F1/133634 ,  G02B5/3083 ,  Y10T428/1036

摘要： An optical film obtained by stretching a polymer film comprising a polycarbonate resin and a styrene resin: wherein a photoelastic coefficient is 2.0×10−11 to 6.0×10−11 m2/N, and a three dimensional refractive index is controlled so that an Nz coefficient may satisfy a relationship of Nz≦0.9 and a front retardation (Re) may satisfy a relationship of Re≧80 nm, has characteristics of giving wide viewing angle and also outstanding durability.

摘要翻译： 通过拉伸包含聚碳酸酯树脂和苯乙烯树脂的聚合物膜获得的光学膜：其中光弹性系数为2.0×10 -6〜6.0×10 -6〜 2 / N，并且控制三维折射率使得Nz系数可以满足Nz <= 0.9的关系，并且前向延迟（Re）可以满足Re> = 80nm的关系，具有特性 具有广视角和突出的耐久性。

公开(公告)号：US07466381B2

公开(公告)日：2008-12-16

申请号：US10572600

申请日：2004-09-13

申请人： Shuuji Yano ,  Ryouji Kinoshita ,  Masayuki Kawai

发明人： Shuuji Yano ,  Ryouji Kinoshita ,  Masayuki Kawai

IPC分类号： G02F1/1335

CPC分类号： G02B5/3033 ,  G02B5/305

摘要： An optical film (3) of the invention comprises a polarizing Plate (1), in which a transparent protective film (1b) is laminated on both sides of a polarizer (1a), and plural retardation films (2) so that an absorption axis of the polarizing plate (1) is perpendicular or parallel to slow axes of the plural retardation films (2) and the slow axes of the plural retardation films (2) are parallel to one another. An Nz value expressed by Nz=(nx1−nz1)/(nx1−ny1) is in the range of from 0.15 to 0.85 and an in-plane retardation Re1 expressed by Re1=(nx1−ny1)×d1 is in the range of from 200 to 350 nm, where in each of the plural retardation films, a direction along with the refractive index in the film plane is maximum is defined as the X-axis, a direction perpendicular to the X-axis as the Y-axis, the thickness direction of the film as the Z-axis, and where refractive indices in each axial direction are defined as nx1, ny1, and nz1, respectively, and the thickness of the film as d1 (nm). The optical film may realize an easily viewable display with high contrast ratio in a wide range and may provide a retardation value stabilized under conditions of high temperature or high humidity.

摘要翻译： 本发明的光学膜（3）包括偏光板（1），其中透明保护膜（1b）层叠在偏振片（1a）的两侧，以及多个延迟膜（2），使得吸收轴 的偏振片（1）的垂直于或平行于多个延迟膜（2）的慢轴并且多个延迟膜（2）的慢轴彼此平行。 由Nz =（nx1-nz1）/（nx1-ny1）表示的Nz值在0.15〜0.85的范围内，由Re1 =（nx1-ny1）×d1表示的面内相位差Re1在 200〜350nm，其中在多个延迟膜中的每一个中，膜平面中的折射率方向最大的方向被定义为X轴，与X轴垂直的方向作为Y轴， 膜的厚度方向为Z轴，各轴向的折射率分别为nx1，ny1，nz1，膜的厚度为d1（nm）。 光学膜可以在宽范围内实现高对比度的容易观看的显示，并且可以提供在高温或高湿度条件下稳定的延迟值。

公开(公告)号：US07466382B2

公开(公告)日：2008-12-16

申请号：US10572602

申请日：2004-09-13

申请人： Shuuji Yano ,  Ryouji Kinoshita ,  Masayuki Kawai

发明人： Shuuji Yano ,  Ryouji Kinoshita ,  Masayuki Kawai

IPC分类号： G02F1/1335

CPC分类号： G02B5/3033 ,  G02B5/305

摘要： An optical film(3) of the invention comprises a polarizing plate(1) and plural retardation films(2) so that an absorption axis of the polarizing plate(1) is perpendicular or parallel to slow axes of the plural retardation films(2) and the slow axes of the plural retardation films(2) are parallel to one another. An Nz value expressed by Nz=(nx1−nz1)/(nx1−ny1) is in the range of from 0.15 to 0.85 and an in-plane retardation Re1 expressed by Re1=(nx1−ny1)×d1 is in the range of from 200 to 350 nm, where in each of the plural retardation films, a direction along with the refractive index in the film plane is maximum is defined as the X-axis, a direction perpendicular to the X-axis as the Y-axis, the thickness direction of the film as the Z-axis, and where refractive indices in each axial direction are defined as nx1, ny1, and nz1, respectively, and the thickness of the film as d1 (nm). The optical film may realize an easily viewable display with high contrast ratio in a wide range.

摘要翻译： 本发明的光学膜（3）包括偏振板（1）和多个延迟膜（2），使得偏振板（1）的吸收轴垂直或平行于多个延迟膜（2）的慢轴， 并且多个延迟膜（2）的慢轴彼此平行。 由Nz =（nx1-nz1）/（nx1-ny1）表示的Nz值在0.15〜0.85的范围内，由Re1 =（nx1-ny1）×d1表示的面内相位差Re1在 200〜350nm，其中在多个延迟膜中的每一个中，膜平面中的折射率方向最大的方向被定义为X轴，与X轴垂直的方向作为Y轴， 膜的厚度方向为Z轴，各轴向的折射率分别为nx1，ny1，nz1，膜的厚度为d1（nm）。 光学膜可以在宽范围内实现高对比度的容易观看的显示。

公开(公告)号：US06855276B2

公开(公告)日：2005-02-15

申请号：US10114752

申请日：2002-04-02

申请人： Seiji Kondo ,  Kazuki Tsuchimoto ,  Akihiro Nishida ,  Ryouji Kinoshita

发明人： Seiji Kondo ,  Kazuki Tsuchimoto ,  Akihiro Nishida ,  Ryouji Kinoshita

IPC分类号： G02B5/02 ,  B29C55/06 ,  B29K29/00 ,  B29K105/32 ,  B29L7/00 ,  C08J5/18 ,  G02B5/08 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/1337 ,  B29D7/01 ,  D02J1/22

CPC分类号： C08J5/18 ,  B29C55/06 ,  B29K2029/04 ,  C08J2329/04 ,  G02B5/3033 ,  Y10T428/31935

摘要： An oriented film of polyvinyl alcohol derived film with reduced stretch irregularity and uniform orientation in a wide range of a stretching ratio is obtained by a manufacturing method for an oriented film, comprising the steps of: contacting a non-stretched film, comprising polyvinyl alcohols or derivatives thereof, with moisture percentage adjusted to no more than 10%, to at least one heating roll currently driven and heating the film at no less than 70° C.; subsequently giving a tension and stretching using a peripheral velocity difference between the heating roll concerned and a stretch roll in a position ahead of said heating roll in a running direction of the film.

摘要翻译： 通过取向膜的制造方法获得拉伸比宽的拉伸不均匀性和均匀取向性的聚乙烯醇衍生膜的取向膜，其包括以下步骤：使包含聚乙烯醇的非拉伸膜 其水分含量调节至不超过10％的至少一种加热辊，并在不低于70℃下加热该膜; 随后在所述加热辊的前方位于所述加热辊的所述膜的运行方向上，使用所述加热辊和拉伸辊之间的圆周速度差进行拉伸和拉伸。