公开(公告)号：US08477275B2

公开(公告)日：2013-07-02

申请号：US13272979

申请日：2011-10-13

申请人： Hirofumi Toyama ,  Isao Fujiwara ,  Jun Takeda ,  Yoji Ito

发明人： Hirofumi Toyama ,  Isao Fujiwara ,  Jun Takeda ,  Yoji Ito

IPC分类号： G02F1/1335

CPC分类号： G02B5/3025 ,  G02F2001/133637 ,  G02F2413/11

摘要： An optical film contains a cellulose acylate film, and at least two layers of an optically anisotropic layer A and an optically anisotropic layer B, wherein the cellulose acylate film satisfies the specific formulae, Re(548) of the optically anisotropic layer A is from 80 to 190 nm and the slow axis of the optically anisotropic layer A is at 45°±10° with respect to the film conveying direction, and the optically anisotropic layer B satisfies the specific formulae.

摘要翻译： 光学膜包含纤维素酰化物膜和至少两层光学各向异性层A和光学各向异性层B，其中纤维素酰化物膜满足具体式，光学各向异性层A的Re（548）为80 至190nm，光学各向异性层A的慢轴相对于膜输送方向为45°±10°，光学各向异性层B满足特定的式。

公开(公告)号：US08350995B2

公开(公告)日：2013-01-08

申请号：US11812317

申请日：2007-06-18

申请人： Hajime Nakayama ,  Yoji Ito

发明人： Hajime Nakayama ,  Yoji Ito

IPC分类号： G02F1/1335 ,  G02B6/10 ,  C03B37/022

CPC分类号： B29D11/0073 ,  B29C55/08 ,  B29K2001/00 ,  B29K2001/12 ,  B29K2995/0034 ,  C08L1/10 ,  C08L1/12 ,  G02B5/30 ,  G02F1/133634 ,  G02F1/134363 ,  G02F2001/133637

摘要： A production method of an optical film, including: a stretching step of stretching a film, wherein the film has a longitudinal direction, a width direction and a thickness direction, wherein the stretching is in either of the longitudinal direction or the width direction of the film; and a shrinking step of shrinking the film in either of the longitudinal direction or the width direction of the film, that is not the direction in which the film is stretched, wherein the film thickness in the thickness direction is increased as compared with the film thickness before at least one of the stretching step and the shrinking step.

摘要翻译： 一种光学薄膜的制造方法，其特征在于，包括：拉伸薄膜的拉伸工序，其中所述薄膜具有纵向方向，宽度方向和厚度方向，其中所述拉伸在所述薄膜的纵向方向或宽度方向 电影; 以及在膜的长度方向或宽度方向上收缩膜的收缩步骤，即不是膜拉伸的方向，其中厚度方向的膜厚度与膜厚度相比增加 在拉伸步骤和收缩步骤中的至少一个之前。

公开(公告)号：US20100328584A1

公开(公告)日：2010-12-30

申请号：US12822783

申请日：2010-06-24

申请人： Hirofumi Toyama ,  Yoji Ito ,  Junichi Hirakata ,  Shinji Ueda

发明人： Hirofumi Toyama ,  Yoji Ito ,  Junichi Hirakata ,  Shinji Ueda

IPC分类号： G02F1/13363 ,  G02F1/1335

CPC分类号： C09J133/08 ,  C08F2220/1825 ,  G02F1/133502 ,  G02F1/133528 ,  G02F1/13363 ,  G02F1/13439 ,  G02F2001/13712 ,  G02F2201/50 ,  G02F2202/022 ,  G02F2202/28 ,  G02F2202/40 ,  C08F2220/301 ,  C08F220/06

摘要： A liquid crystal display device is provided and includes: a liquid crystal cell including a pair of transparent glass substrates each having a transparent electrode, and a nematic liquid crystal between the pair of the transparent glass substrates; and a pair of polarizing plates sandwiching the liquid crystal cell. At least one of the pair of polarizing plates includes a protective film; a polarizer; and an optical compensation film. One of the pair of transparent glass substrates, an, adhesive; the optical compensation film; the polarizer; and the protective film are stacked in this order, and they satisfy the following equations (1) to (3): |n1−n2|≦0.03  (1) |n2−n3|≦0.03  (2) |n1−n3|≦0.03  (3) where n1, n2, and n3 indicate average refractive indices at 589 nm of the one of the pair of the transparent glass electrodes, the adhesive; and the optical compensation film, respectively.

摘要翻译： 提供了一种液晶显示装置，包括：液晶单元，其包括一对透明玻璃基板，每个透明玻璃基板均具有透明电极;以及在一对透明玻璃基板之间的向列型液晶; 以及夹着液晶单元的一对偏光板。 所述一对偏振板中的至少一个包括保护膜; 偏振片 和光学补偿膜。 一对透明玻璃基板之一，粘合剂; 光学补偿膜; 偏光片; （1）〜（3）：| n1-n2 |＆nlE; 0.03（1）| n2-n3 |＆nlE; 0.03（2）| n1-n3 |＆nlE; 0.03（3）其中n1，n2和n3表示一对透明玻璃电极之一的粘合剂在589nm处的平均折射率; 和光学补偿膜。

公开(公告)号：US20090296213A1

公开(公告)日：2009-12-03

申请号：US12461240

申请日：2009-08-05

申请人： Yoji Ito

发明人： Yoji Ito

IPC分类号： G02B1/08 ,  G02B5/30

CPC分类号： G02B5/3033 ,  G02B5/3016 ,  G02F1/133528 ,  G02F1/1393 ,  G02F2413/105

摘要： A polarizing plate including: a protective film; a polarizer; and a polymer substrate, laminated in this order, wherein the polarizer has a thickness of 10 to 25 μm and a width of 1700 to 2300 mm, and the polymer substrate has a thickness of 30 to 70 μm.

摘要翻译： 一种偏振片，包括：保护膜; 偏振片 和聚合物基材，其中偏振片的厚度为10〜25μm，宽度为1700〜2300mm，聚合物基材的厚度为30〜70μm。

公开(公告)号：US20090174846A1

公开(公告)日：2009-07-09

申请号：US12281577

申请日：2007-03-02

申请人： Yoji Ito

发明人： Yoji Ito

IPC分类号： G02F1/13363 ,  G02B5/30 ,  G02B1/08

CPC分类号： G02B5/305 ,  G02F1/133528 ,  G02F2001/133311 ,  G02F2201/50

摘要： Disclosed is a polarizing plate comprising a protective film and a liquid crystal display device that utilizes the polarizing plate, wherein the protective film has a moisture permeability of 1 g/m2/24 h to 100 g/m2/24 h.

摘要翻译： 公开了一种包括保护膜的偏振片和利用偏振片的液晶显示装置，其中保护膜的透湿度为1g / m 2 / 24h至100g / m 2/24小时。

公开(公告)号：US20090122234A1

公开(公告)日：2009-05-14

申请号：US11990230

申请日：2006-08-16

申请人： Yoji Ito

发明人： Yoji Ito

IPC分类号： G02F1/1335 ,  C09K19/00 ,  G02B1/08

CPC分类号： C08J5/18 ,  C08J2301/10 ,  C08L1/10 ,  C08L1/12 ,  C08L1/14 ,  G02B5/3083 ,  G02F1/1395 ,  Y10T428/1036

摘要： An optical compensation film is provided and includes a cellulose acylate film and an optically anisotropic layer containing a liquid crystalline compound. The cellulose acylate film satisfies specific conditions in relation to substitution degrees of hydroxyl groups in glucose units constituting cellulose of the cellulose acylate film, and has a thickness of 40 to 85 μm.

公开(公告)号：US20080158483A1

公开(公告)日：2008-07-03

申请号：US11659577

申请日：2005-08-12

申请人： Yukito Saitoh ,  Ryouta Matsubara ,  Yoji Ito

发明人： Yukito Saitoh ,  Ryouta Matsubara ,  Yoji Ito

IPC分类号： G02F1/13 ,  G02B5/30 ,  G02F1/13363 ,  G02F1/1335

CPC分类号： C08J5/18 ,  B32B7/02 ,  C08J2301/10 ,  G02B5/3016 ,  G02B5/3083 ,  G02F1/13363 ,  G02F2001/133635 ,  G02F2001/133637 ,  G02F2413/04 ,  Y10T428/1036

摘要： A novel optical compensation film is disclosed. The film comprises a transparent film having a ratio Re/Rth(450 nm) of Re and Rth at 450 nm of 0.4 to 0.95 times as large as Re/Rth(550 nm) at 550 nm, having Re/Rth(650 nm) at 650 nm of 1.05 to 1.93 times as large as Re/Rth(550 nm), and having Rth at 550 nm ranging from 70 nm to 400 nm, where “Re” is an in-plane retardation and “Rth” is a thickness-direction retardation; and an optically anisotropic layer having an in-plane optical anisotropy, formed of a composition comprising a liquid-crystalline compound, in which molecules of the liquid-crystalline compound are fixed in an alignment state, wherein the direction of orthogonal projection, onto a plane of the transparent film, of a mean orientation direction of molecular symmetry axes of the liquid-crystalline compound at the interface on the transparent film side is 45° with respect to the in-plane slow axis of the transparent film.

摘要翻译： 公开了一种新颖的光学补偿膜。 该膜包括Re和Rth在450nm处的Re / Rth（450nm）与Re / Rth（550nm）在550nm处的重量比为Re / Rth（650nm）的0.4至0.95倍的透明膜， 在650nm处为Re / Rth（550nm）的1.05〜1.93倍，在550nm处的Rth为70nm〜400nm，其中“Re”为面内相位差，“Rth”为厚度 方向延迟; 以及具有面内光学各向异性的光学各向异性层，其由包含液晶化合物的组合物形成，其中液晶化合物的分子以取向状态固定，其中正交投影的方向在平面上 在透明膜一侧的界面处的液晶化合物的分子对称轴的平均取向方向的透明膜相对于透明膜的面内慢轴为45°。

公开(公告)号：US07202922B2

公开(公告)日：2007-04-10

申请号：US10508853

申请日：2003-03-19

申请人： Yoji Ito

发明人： Yoji Ito

IPC分类号： G02F1/1335

CPC分类号： G02B5/3033 ,  G02B5/3016 ,  G02F1/133528 ,  G02F1/1393 ,  G02F2413/105

摘要： A polarizing plate is provided which includes a polymer film, a polarizer, a polymer substrate, and an optically anisotropic layer containing a liquid crystal compound, laminated in this order, wherein the polarizer has a thickness of 10 to 25 μm. A liquid crystal display using the polarizing plate shows high display quality without causing light leakage.

公开(公告)号：US07105212B2

公开(公告)日：2006-09-12

申请号：US10508864

申请日：2003-04-18

申请人： Yoji Ito

发明人： Yoji Ito

IPC分类号： G02B5/30

CPC分类号： G02B1/04 ,  C08J5/18 ,  C08J2301/12 ,  G02B5/208 ,  G02B5/3083 ,  Y10T428/1036 ,  Y10T428/105 ,  C08L101/12

摘要： A polymer film is used as an optical compensatory sheet or a support thereof. The polymer film contains a rod-like compound. The rod-like compound in the form of a solution gives an ultraviolet absorption spectrum. In the spectrum, the wavelength of λmax at the maximum absorption peak is shorter than 250 nm. The spectrum of the rod-like compound is measured when the rod-like compound is in the form of solution. The polymer film has an Rth retardation value of Rth450 measured at the wavelength of 450 nm in the range of 30 to 160 nm. The polymer film also has an Rth retardation value of Rth590 measured at the wavelength of 590 nm in the range of 50 to 200 nm. The values of the Rth450 and Rth590 satisfy the condition of Rth590-Rth450≧2 nm.

摘要翻译： 聚合物膜用作光学补偿片或其支撑体。 聚合物膜含有棒状化合物。 溶液形式的棒状化合物产生紫外吸收光谱。 在光谱中，最大吸收峰处的lambdamax的波长短于250nm。 当棒状化合物为溶液形式时，测量棒状化合物的光谱。 聚合物膜在波长450nm，在30〜160nm的范围内具有Rth450的Rth延迟值。 聚合物膜还具有在波长为590nm的范围为50〜200nm的Rth590的Rth延迟值。 Rth450和Rth590的值满足Rth590-Rth450> = 2nm的条件。

公开(公告)号：US20060159866A1

公开(公告)日：2006-07-20

申请号：US11374104

申请日：2006-03-14

申请人： Yoji Ito

发明人： Yoji Ito

IPC分类号： C09K19/00

CPC分类号： G02F1/133634 ,  G02B5/3016 ,  Y10T428/10 ,  Y10T428/1036 ,  Y10T428/1082 ,  Y10T428/1086

摘要： An optical compensatory sheet comprises a transparent support and an optically anisotropic layer. The optically anisotropic layer is formed from liquid crystal molecules and monomers having four or more double bonds. The monomers are polymerized to form a polymer in the optically anisotropic layer.