公开(公告)号：US20120147304A1

公开(公告)日：2012-06-14

申请号：US13391785

申请日：2011-02-18

Applicant: Yujiro Yanai ,  Hiroaki Sata ,  Hajime Nakayama ,  Yasuyuki Sasada

Inventor： Yujiro Yanai ,  Hiroaki Sata ,  Hajime Nakayama ,  Yasuyuki Sasada

IPC: G02F1/1335

CPC classification number: G02B5/3033 ,  G02F1/133634 ,  G02F2001/133638 ,  G03B21/2073 ,  G03B35/18 ,  G03B35/26

Abstract: There is provided a liquid crystal display device that diminishes flickers caused by crosstalk of a three-dimensional image (an overlap of images) or reflection of external light. A liquid crystal display device includes a pair of substrates, at least one of the pair of substrates having an electrode and the pair of substrates being placed opposite each other, and a first polarizing plate placed on a light source side and a second polarizing plate placed on a view side with the liquid crystal layer sandwiched therebetween, in which a protective film on the view side of the second polarizing plate includes a transparent support satisfying 0≦|Re(550)|≦10 and an optically anisotropic layer having a λ/4 function, and Rth of the protective film on the view side of the second polarizing plate is |Rth|≦20.

Abstract translation: 提供了一种减少由三维图像的串扰（图像的重叠）或外部光的反射引起的闪烁的液晶显示装置。 液晶显示装置包括一对基板，所述一对基板中的至少一个基板具有电极，所述一对基板彼此相对放置，并且第一偏振片放置在光源侧，第二偏光板放置在 在夹着它们之间的液晶层的观察侧，其中第二偏振片的观察侧上的保护膜包括满足0＆lt; nlE; | Re（550）|＆nlE; 10的透明支撑体和具有λ / 4功能，第二偏振片的视野侧的保护膜的Rth为| Rth |＆nlE; 20。

公开(公告)号：US08125597B2

公开(公告)日：2012-02-28

申请号：US12073160

申请日：2008-02-29

Applicant: Hiroaki Sata ,  Kotaro Yasuda ,  Junichi Hirakata

Inventor： Hiroaki Sata ,  Kotaro Yasuda ,  Junichi Hirakata

IPC: G02F1/1335

CPC classification number: G02F1/134363 ,  G02F1/13363 ,  G02F2202/40 ,  G02F2413/01

Abstract: A liquid crystal display device includes a pair of polarizing films; a liquid crystal cell that is sandwiched between the pair of polarizing films; a retardation layer (A) of 70 μm or less in thickness, which is disposed between the liquid crystal cell and one of the pair of polarizing films; and a retardation layer (B) of 70 μm or less in thickness, which is disposed between the liquid crystal cell and the other of the pair of polarizing films, wherein the retardation layers (A) and (B) satisfy following formulae (1) to (3): RthU>RthD  Formula (1): −20 nm≦RthD≦20 nm  Formula (2): 20 nm

Abstract translation: 液晶显示装置包括一对偏光膜; 夹在所述一对偏光膜之间的液晶单元; 设置在液晶单元和一对偏振膜中的一个之间的厚度为70μm以下的相位差层（A） 和设置在所述一对偏振膜中的另一方的液晶单元之间的厚度为70μm以下的相位差层（B），其中所述延迟层（A）和（B）满足下式（1） 至（3）：RthU> RthD式（1）：-20nm＆nlE; RthD＆nlE; 20nm式（2）：20nm

公开(公告)号：US20110151145A1

公开(公告)日：2011-06-23

申请号：US12969066

申请日：2010-12-15

Applicant: Kazuo KAMOHARA ,  Hiroaki SATA ,  Ryo SUZUKI

Inventor： Kazuo KAMOHARA ,  Hiroaki SATA ,  Ryo SUZUKI

IPC: C09K19/52 ,  B32B23/20 ,  G02B1/10 ,  B29D7/01 ,  C09D101/10

CPC classification number: C08J5/18 ,  C08B3/00 ,  C08B3/06 ,  C08J2301/10 ,  C08K5/10 ,  C08L1/10 ,  C08L1/12 ,  G02B1/105 ,  G02B1/14 ,  G02B5/3033 ,  G02B5/3083 ,  Y10T428/105

Abstract: A cellulose ester film is provided and includes a non-phosphoric acid additive. The cellulose ester film has: a degree of alignment of 0.12 or higher in a thickness direction of the cellulose ester film as measured by wide angle X-ray diffractometry; and an average elastic modulus of 3.7 to 4.5 GPa.

Abstract translation: 提供纤维素酯膜并包括非磷酸添加剂。 纤维素酯膜具有：通过广角X射线衍射测定的纤维素酯膜的厚度方向的取向度为0.12以上; 平均弹性模量为3.7〜4.5GPa。

公开(公告)号：US07943210B2

公开(公告)日：2011-05-17

申请号：US12379145

申请日：2009-02-13

Applicant: Hiroshi Takeuchi ,  Hiroaki Sata ,  Hiroyuki Kawanishi ,  Takamichi Fujii

Inventor： Hiroshi Takeuchi ,  Hiroaki Sata ,  Hiroyuki Kawanishi ,  Takamichi Fujii

IPC: C09K19/00

CPC classification number: G02B5/3083 ,  G02F2001/133638 ,  Y10T428/1005 ,  Y10T428/1036 ,  Y10T428/105

Abstract: A phase difference plate which comprises one sheet of polymer film containing a compound having a rod-shaped molecular structure and exhibiting a maximum absorption wavelength (λmax) of less than 250 nm in an ultraviolet spectrum of its solution and which exhibits a retardation value as measured at a wavelength of 450 nm (Re450) of 60 to 135 nm and a retardation value as measured at a wavelength of 590 nm (Re590) of 100 to 170 nm, where the relationship: Re590−Re450≧2 nm is satisfied. The phase difference plate functions as a λ/4 plate.

Abstract translation: 相差板，其包含一片聚合物膜，其含有具有棒状分子结构并且在其溶液的紫外光谱中显示最小吸收波长（λmax）小于250nm的化合物的聚合物膜，并且显示出测量的延迟值 （Re450）为60〜135nm，在波长590nm（Re590）下测定的延迟值为100〜170nm，满足Re590-Re450≥2nm的关系。 相位差板用作λ/ 4板。

公开(公告)号：US07559986B2

公开(公告)日：2009-07-14

申请号：US11368633

申请日：2006-03-07

Applicant: Hiroshi Takeuchi ,  Hiroaki Sata ,  Hiroyuki Kawanishi ,  Takamichi Fujii

Inventor： Hiroshi Takeuchi ,  Hiroaki Sata ,  Hiroyuki Kawanishi ,  Takamichi Fujii

IPC: C09D4/00 ,  C09D201/00 ,  C09J4/00 ,  C09J201/00 ,  C08B3/06 ,  C09K19/00

CPC classification number: G02B5/3083 ,  G02F2001/133638 ,  Y10T428/1005 ,  Y10T428/1036 ,  Y10T428/105

Abstract: A phase difference plate which comprises one sheet of polymer film containing a compound having a rod-shaped molecular structure and exhibiting a maximum absorption wavelength (λmax) of less than 250 nm in an ultraviolet spectrum of its solution and which exhibits a retardation value as measured at a wavelength of 450 nm (Re450) of 60 to 135 nm and a retardation value as measured at a wavelength of 590 nm (Re590) of 100 to 170 nm, where the relationship: Re590−Re450≧2 nm is satisfied. The phase difference plate functions as a λ/4 plate.

Abstract translation: 一种相差板，其包含一片聚合物膜，其中含有具有棒状分子结构并且在其溶液的紫外光谱中显示出小于250nm的最大吸收波长（lambdamax）的化合物的聚合物膜，并且显示出测量的延迟值 在波长450nm（Re450）为60〜135nm，波长590nm（Re590）测定的相位差值为100〜170nm，满足Re590-Re450> = 2nm的关系。 相位差板用作λ/ 4板。

公开(公告)号：US20090117294A1

公开(公告)日：2009-05-07

申请号：US12088193

申请日：2006-09-29

Applicant: Tadashi Omatsu ,  Nobutaka Fukagawa ,  Hiromoto Haruta ,  Yutaka Nozoe ,  Tomohiro Ogawa ,  Hiroaki Sata

Inventor： Tadashi Omatsu ,  Nobutaka Fukagawa ,  Hiromoto Haruta ,  Yutaka Nozoe ,  Tomohiro Ogawa ,  Hiroaki Sata

IPC: C09K19/00

CPC classification number: G02B5/3033 ,  G02B5/3083 ,  G02F1/13363 ,  Y10T428/10 ,  Y10T428/1041

Abstract: A cellulose derivative film having high optical isotropy over the whole visible region and high durability against high temperature and humidity conditions is provided. The film contains a cellulose derivative having a substituent the polarizability anisotropy Δα (=αx−(αy+αz)/2) of which is 2.5×10−24 cm3 or more, and the film has an in-plane retardation Re and a thickness direction retardation Rth satisfying the respective inequalities: |Rth(589)|≦25 nm and |Re(589)|≦10 nm. Also provided are an optical compensation film, a polarizing plate, and a liquid crystal device that use the cellulose derivative film and exhibit excellent viewing angle characteristics and durability.

Abstract translation: 提供了在整个可见区域具有高光学各向同性并且对高温和高湿条件具有高耐久性的纤维素衍生物膜。 该膜含有具有极化率各向异性Δalpha（= alphax-（alphay + alphaz）/ 2）的取代基的纤维素衍生物为2.5×10〜24cm 3以上，并且该膜具有面内相位差Re和厚度方向 延迟Rth满足各个不等式：| Rth（589）| <= 25nm和| Re（589）| <= 10nm。 还提供了使用纤维素衍生物膜并且具有优异的视角特性和耐久性的光学补偿膜，偏振片和液晶装置。

公开(公告)号：US20080230944A1

公开(公告)日：2008-09-25

申请号：US12050732

申请日：2008-03-18

Applicant: Toshinao ARAI ,  Hiroaki SATA ,  Takahiro MOTO ,  Akihiro IKEYAMA

Inventor： Toshinao ARAI ,  Hiroaki SATA ,  Takahiro MOTO ,  Akihiro IKEYAMA

IPC: B29D7/01

CPC classification number: B29C41/26 ,  B29K2001/00

Abstract: A dope is cast onto a drum. A casting film is cooled and solidified by the drum. The casting film is peeled as a film containing a solvent. The peeled film is guided to a tenter. In the tenter, in a first drying step, the film is dried by dry air from an air duct while being stretched in the width direction in a state that side edge portions of the film are held by pins. Thereafter, in a second drying step, the film is dried while tension is applied to the film in the width direction. A first ratio calculated by (a moving speed of the pins)/(a rotation speed of the drum), a second ratio calculated by L2/L1, and a third ratio calculated by L3/L2 satisfy 0.94≦(the first ratio)/{(the second ratio)·(the third ratio)}≦0.97.

Abstract translation: 涂料涂在鼓上。 流延薄膜由滚筒冷却和固化。 将流延膜作为含有溶剂的膜剥离。 剥离的薄膜被引导到拉幅机。 在拉幅机中，在第一干燥步骤中，在通过销保持膜的侧边缘部分的状态下，在空气管道中干燥空气，同时沿宽度方向拉伸。 此后，在第二干燥步骤中，将薄膜干燥，同时在宽度方向上对薄膜施加张力。 通过（针的移动速度）/（滚筒的转速），由L 2 / L 1计算的第二比例和通过L 3 / L 2计算的第三比率计算出的第一比率满足0.94 <=（ 第一比率）/ {（第二比率）（第三比例）} <= 0.97。

公开(公告)号：US20070258141A1

公开(公告)日：2007-11-08

申请号：US11659576

申请日：2005-09-13

Applicant: Ikuko Ohgaru ,  Hiroaki Sata

Inventor： Ikuko Ohgaru ,  Hiroaki Sata

IPC: G02B5/30

CPC classification number: G02F1/133528 ,  G02B1/105 ,  G02B1/11 ,  G02B1/14 ,  G02B5/3016 ,  G02B5/3025 ,  G02F1/13363 ,  G02F1/133634 ,  G02F2202/40 ,  Y10T428/1041

Abstract: A polarizing plate comprising a polarizer comprising polyvinyl alcohol and a protective film on at least one side of the polarizer, the polarizer having a difference of 5.0% or smaller between maximum and minimum of an in-plane phase difference Rpva thereof in any area thereof measuring 39 cm wide and 65 cm long.

Abstract translation: 一种偏振片，其特征在于，在所述偏振片的至少一侧包括偏光镜，所述偏振片包括聚乙烯醇和保护膜，所述偏振片在其任何区域的面内相位差Rpva的最大值与最小值之间的差为5.0％以下 长39厘米，长65厘米。

公开(公告)号：US07166339B1

公开(公告)日：2007-01-23

申请号：US09959128

申请日：2000-04-21

Applicant: Hiroyuki Mori ,  Hiroaki Sata

Inventor： Hiroyuki Mori ,  Hiroaki Sata

IPC: G02F1/1335

CPC classification number: G02B5/3083 ,  Y10T428/1041 ,  Y10T428/105

Abstract: A phase retarder comprises one cellulose ester film. The retardation value of the film represented by Re450 measured at the wavelength of 450 nm is in the range of 100 to 125 nm. The retardation value of the film represented by Re590 measured at the wavelength of 590 nm is in the range of 120 to 160 nm. The retardation values represented by Re450 and Re590 satisfy the condition of Re590−Re450≧2 nm. An aromatic compound having at least two aromatic rings is incorporated in the film as a retardation increasing agent to obtain λ/4 in the wide wavelength region defined above. A phase retarder can also give λ/2 in a wide wavelength region in the same manner.

Abstract translation: 相缓凝剂包括一种纤维素酯膜。 在450nm波长处测量的由Re450表示的膜的延迟值在100至125nm的范围内。 在590nm波长下测量的由Re590表示的膜的延迟值在120至160nm的范围内。 由Re450和Re590表示的延迟值满足Re590-Re450> = 2nm的条件。 具有至少两个芳环的芳族化合物作为延迟增加剂掺入到膜中，以在上述宽波长区域中获得λ/ 4。 相位延迟器也可以以相同的方式在宽波长区域中产生λ/ 2。

公开(公告)号：US08648982B2

公开(公告)日：2014-02-11

申请号：US13579776

申请日：2011-02-18

Applicant: Yujiro Yanai ,  Hiroaki Sata ,  Hajime Nakayama ,  Yasuyuki Sasada

Inventor： Yujiro Yanai ,  Hiroaki Sata ,  Hajime Nakayama ,  Yasuyuki Sasada

IPC: G02F1/1347

CPC classification number: G02B5/3033 ,  H04N13/337

Abstract: There is provided an optical film having a small size change with a temperature change of a support of a pattern retardation film. An optical film includes: a support comprising a polymer having a moisture absorptivity of 0.5% or more; a first retardation region and a second retardation region, in which birefringence thereof is mutually different; and an optically anisotropic layer in which the first retardation region and the second retardation region are alternately patterned for every one line.

Abstract translation: 提供了具有尺寸变化小的光学膜，其具有图案延迟膜的支撑体的温度变化。 光学膜包括：包含吸水率为0.5％以上的聚合物的载体; 其双折射相互不同的第一延迟区域和第二延迟区域; 以及其中第一延迟区域和第二延迟区域每一行交替图案化的光学各向异性层。