公开(公告)号：US07906184B2

公开(公告)日：2011-03-15

申请号：US11817762

申请日：2006-01-30

申请人： Seiji Umemoto ,  Ikuo Kawamoto ,  Kentarou Takeda

发明人： Seiji Umemoto ,  Ikuo Kawamoto ,  Kentarou Takeda

IPC分类号： G02F1/13363 ,  G02B1/08

CPC分类号： G02F1/133634 ,  G02B5/3083 ,  G02B27/281 ,  Y10T428/1036 ,  Y10T428/1041

摘要： An object of the present invention is to provide an optical film capable of contributing to reduction in thickness, preventing uneven heating, and favorably preventing light leak in black display, and an image display apparatus using such an optical film. An optical film of the present invention includes a polarizer, a first optical compensation layer having a refractive index profile of nx>ny=nz, and a second optical compensation layer having a refractive index profile of nx>ny>nz in the stated order. In the optical film, an angle formed between an absorption axis of the polarizer and a slow axis of the first optical compensation layer is +17° to +27° or −17° to −27°, an angle formed between the absorption axis of the polarizer and a slow axis of the second optical compensation layer is +85° to +95°, and an Nz coefficient of the second optical compensation layer is 1.2≦Nz≦2.

摘要翻译： 本发明的目的是提供一种能够有助于减小厚度，防止不均匀加热，有利地防止黑色显示器中的漏光的光学膜和使用这种光学膜的图像显示装置。 本发明的光学膜包括偏振器，具有nx> ny = nz的折射率分布的第一光学补偿层，以及按照所述顺序具有nx> ny> nz的折射率分布的第二光学补偿层。 在光学膜中，在偏振片的吸收轴与第一光学补偿层的慢轴之间形成的角度为+ 17°至+ 27°或-17°至-27°， 偏振器和第二光学补偿层的慢轴为+ 85°至+ 95°，第二光学补偿层的Nz系数为1.2＆nlE; Nz＆nlE; 2。

公开(公告)号：US20090296027A1

公开(公告)日：2009-12-03

申请号：US12300583

申请日：2007-04-23

申请人： Ikuo Kawamoto ,  Seiji Umemoto ,  Hideyuki Yonezawa ,  Kazuya Hada

发明人： Ikuo Kawamoto ,  Seiji Umemoto ,  Hideyuki Yonezawa ,  Kazuya Hada

IPC分类号： G02F1/1335

CPC分类号： G02B5/3083 ,  B32B23/08 ,  B32B23/20 ,  B32B27/08 ,  B32B27/18 ,  B32B27/306 ,  B32B27/325 ,  B32B37/206 ,  B32B2250/05 ,  B32B2250/24 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/4026 ,  B32B2307/412 ,  B32B2307/42 ,  B32B2307/516 ,  B32B2307/706 ,  B32B2307/718 ,  B32B2309/10 ,  B32B2309/105 ,  B32B2310/0831 ,  B32B2457/202 ,  B32B2457/206 ,  B32B2551/00 ,  G02F1/133634 ,  G02F2001/133531 ,  G02F2001/133638 ,  G02F2201/50 ,  G02F2202/40 ,  G02F2413/03 ,  G02F2413/07 ,  G02F2413/10 ,  G02F2413/11

摘要： Provided are an elliptically polarizing plate that is excellent in contrast in an oblique direction and has a broadband and a wide viewing angle, and an image display device using the elliptically polarizing plate. The elliptically polarizing plate of the present invention includes in order: a polarizer; a protective layer; a first birefringent layer having a refractive index profile of nz>nx=ny; a second birefringent layer that functions as a λ/2 plate; and a third birefringent layer that functions as a λ/4 plate. A ratio Rth1/Rthp between an absolute value Rthp of a thickness direction retardation of the protective layer and an absolute value Rth1 of a thickness direction retardation of the first birefringent layer is preferably in a range of 1.1 to 4.

摘要翻译： 本发明提供一种在倾斜方向上具有优异的宽带和宽视角的椭圆偏光板，以及使用该椭圆偏光板的图像显示装置。 本发明的椭圆偏光板依次包括：偏振片; 保护层; 具有nz> nx = ny的折射率分布的第一双折射层; 用作λ/ 2板的第二双折射层; 以及用作λ/ 4板的第三双折射层。 保护层的厚度方向相位差的绝对值Rthp与第一双折射层的厚度方向延迟的绝对值Rth1之间的比率Rth1 / Rthp优选为1.1〜4的范围。

公开(公告)号：US20100225854A1

公开(公告)日：2010-09-09

申请号：US12279865

申请日：2007-01-26

申请人： Ikuo Kawamoto ,  Seiji Umemoto ,  Takashi Kamijou ,  Hideyuki Yonezawa ,  Kazuya Hada ,  Kentarou Kobayashi

发明人： Ikuo Kawamoto ,  Seiji Umemoto ,  Takashi Kamijou ,  Hideyuki Yonezawa ,  Kazuya Hada ,  Kentarou Kobayashi

IPC分类号： G02F1/1335

CPC分类号： G02F1/13363 ,  G02B5/3083 ,  G02F1/133555 ,  G02F1/1393 ,  G02F2201/50 ,  G02F2202/28 ,  G02F2413/04 ,  G02F2413/08 ,  G02F2413/11 ,  G02F2413/13

摘要： Provided are a liquid crystal panel which contributes to reduction in thickness and is excellent in optical properties and a liquid crystal display apparatus. The liquid crystal panel of the present invention includes a liquid crystal cell, a first polarizer disposed on one side of the liquid crystal cell, a second polarizer disposed on another side of the liquid crystal cell, a first optical compensation layer and a first negative C plate disposed between the first polarizer and the liquid crystal cell, and a second negative C plate and a second optical compensation layer disposed between the liquid crystal cell and the second polarizer, in which the first optical compensation layer is disposed between the first polarizer and the first negative C plate, the second optical compensation layer is disposed between the second negative C plate and the second polarizer, the first and second optical compensation layers each include a coating layer functioning as a λ/4 plate, and each have a thickness of 0.3 to 3 μm, and the first and second negative C plates each include a coating layer, and each have a thickness of 0.5 to 10 μm.

摘要翻译： 提供有助于减小厚度并且具有优异的光学性质的液晶面板和液晶显示装置。 本发明的液晶面板包括液晶单元，配置在液晶单元的一侧的第一偏振器，配置在液晶单元的另一侧的第二偏振片，第一光学补偿层和第一负极C 设置在第一偏振器和液晶单元之间的板，以及设置在液晶单元和第二偏振器之间的第二负C板和第二光学补偿层，其中第一光学补偿层设置在第一偏振器和第二偏振器之间 第一负C板，第二光学补偿层设置在第二负C板和第二偏光板之间，第一和第二光学补偿层各自包括用作λ/ 4板的涂层，并且各自具有0.3的厚度 至3μm，并且第一和第二负C板各自包括涂层，并且各自具有0.5至10μm的厚度。

公开(公告)号：US07468777B2

公开(公告)日：2008-12-23

申请号：US11354130

申请日：2006-02-15

申请人： Ikuo Kawamoto ,  Seiji Umemoto ,  Takashi Kamijou ,  Hideyuki Yonezawa ,  Kazuya Hada

发明人： Ikuo Kawamoto ,  Seiji Umemoto ,  Takashi Kamijou ,  Hideyuki Yonezawa ,  Kazuya Hada

IPC分类号： G02F1/13 ,  G02F1/1335

CPC分类号： G02F1/133528 ,  G02B5/3016 ,  G02F2001/133638

摘要： The present invention provides a method of producing an elliptically polarizing plate including the steps of: forming a first birefringent layer on a surface of a transparent protective film; laminating a polarizer on a surface of the transparent protective film; forming a second birefringent layer on a surface of the first birefringent layer; and forming a third birefringent layer on a surface of the second birefringent layer. The first birefringent layer is arranged on the opposite side against the polarizer with respect to the transparent protective film. The step of forming the first birefringent layer includes the steps of: applying a liquid crystal material onto a substrate subjected to an alignment treatment; treating the applied liquid crystal material, so as to form the first birefringent layer on the substrate; and transferring the first birefringent layer onto a surface of the transparent protective film.

摘要翻译： 本发明提供一种椭圆偏光板的制造方法，包括以下步骤：在透明保护膜的表面上形成第一双折射层; 在透明保护膜的表面上层叠偏振片; 在所述第一双折射层的表面上形成第二双折射层; 以及在所述第二双折射层的表面上形成第三双折射层。 相对于透明保护膜，第一双折射层被布置在相对于偏振器的相反侧。 形成第一双折射层的步骤包括以下步骤：将液晶材料施加到经过取向处理的基板上; 处理所施加的液晶材料，以在基板上形成第一双折射层; 并将第一双折射层转印到透明保护膜的表面上。

公开(公告)号：US20060203159A1

公开(公告)日：2006-09-14

申请号：US11354130

申请日：2006-02-15

申请人： Ikuo Kawamoto ,  Seiji Umemoto ,  Takashi Kamijou ,  Hideyuki Yonezawa ,  Kazuya Hada

发明人： Ikuo Kawamoto ,  Seiji Umemoto ,  Takashi Kamijou ,  Hideyuki Yonezawa ,  Kazuya Hada

IPC分类号： G02F1/1335

CPC分类号： G02F1/133528 ,  G02B5/3016 ,  G02F2001/133638

摘要： The present invention provides a method of producing an elliptically polarizing plate including the steps of: forming a first birefringent layer on a surface of a transparent protective film; laminating a polarizer on a surface of the transparent protective film; forming a second birefringent layer on a surface of the first birefringent layer; and forming a third birefringent layer on a surface of the second birefringent layer. The first birefringent layer is arranged on the opposite side against the polarizer with respect to the transparent protective film. The step of forming the first birefringent layer includes the steps of: applying a liquid crystal material onto a substrate subjected to an alignment treatment; treating the applied liquid crystal material, so as to form the first birefringent layer on the substrate; and transferring the first birefringent layer onto a surface of the transparent protective film.

摘要翻译： 本发明提供一种椭圆偏光板的制造方法，包括以下步骤：在透明保护膜的表面上形成第一双折射层; 在透明保护膜的表面上层叠偏振片; 在所述第一双折射层的表面上形成第二双折射层; 以及在所述第二双折射层的表面上形成第三双折射层。 相对于透明保护膜，第一双折射层被布置在相对于偏振器的相反侧。 形成第一双折射层的步骤包括以下步骤：将液晶材料施加到经过取向处理的基板上; 处理所施加的液晶材料，以在基板上形成第一双折射层; 并将第一双折射层转印到透明保护膜的表面上。

公开(公告)号：US20060103796A1

公开(公告)日：2006-05-18

申请号：US11267305

申请日：2005-11-07

申请人： Ikuo Kawamoto ,  Seiji Umemoto ,  Shunsuke Shutou

发明人： Ikuo Kawamoto ,  Seiji Umemoto ,  Shunsuke Shutou

IPC分类号： G02F1/1335

CPC分类号： G02B5/3041 ,  G02B5/3016

摘要： There is provided: a broadband and wide viewing angle elliptically polarizing plate with excellent properties even in an oblique direction; and an image display apparatus using the same. The present invention provides an elliptically polarizing plate including: a polarizer; a protective layer formed on one side of the polarizer; a first birefringent layer serving as a λ/2 plate; a second birefringent layer serving as a λ/4 plate; and a third birefringent layer having a refractive index profile of nz>nx=ny, in which a ratio Rth3/Rthp of an absolute value of thickness direction retardation of the third birefringent layer Rth3 to an absolute value of thickness direction retardation of the protective layer Rthp is 1.1 to 4.

摘要翻译： 提供：即使在倾斜方向也具有优异性能的宽带和宽视角椭圆偏振板; 以及使用该图像显示装置的图像显示装置。 本发明提供一种椭圆偏振片，包括：偏振片; 形成在偏振器一侧的保护层; 用作λ/ 2板的第一双折射层; 用作λ/ 4板的第二双折射层; 以及具有nz> nx = ny的折射率分布的第三双折射层，其中第三双折射层Rth 3的厚度方向延迟的绝对值的比率Rth3 / Rthp 保护层Rthp的厚度方向延迟的绝对值为1.1〜4。

公开(公告)号：US20100134737A1

公开(公告)日：2010-06-03

申请号：US12067467

申请日：2007-01-26

申请人： Ikuo Kawamoto ,  Seiji Umemoto ,  Takashi Kamijou ,  Hideyuki Yonezawa ,  Kazuya Hada ,  Kentarou Kobayashi

发明人： Ikuo Kawamoto ,  Seiji Umemoto ,  Takashi Kamijou ,  Hideyuki Yonezawa ,  Kazuya Hada ,  Kentarou Kobayashi

IPC分类号： G02F1/13363 ,  H01J9/20

CPC分类号： G02F1/13363 ,  G02B5/3083 ,  G02F1/133555 ,  G02F1/1393 ,  G02F2001/133633 ,  G02F2001/133635 ,  G02F2201/50 ,  G02F2202/28 ,  G02F2413/04 ,  G02F2413/11 ,  G02F2413/13

摘要： Provided are a liquid crystal panel and a liquid crystal display apparatus each of which: contributes to a reduction in thickness; and is excellent in optical characteristics, and a method of producing the liquid crystal panel with extremely high production efficiency. A liquid crystal panel of the present invention has a first polarizer, a first protective layer, a first optical compensation layer, a first negative C plate, a liquid crystal cell, a second negative C plate, a second optical compensation layer, a second protective layer, and a second polarizer in the stated order. The first optical compensation layer is arranged between the first protective layer and the first negative C plate to be in close contact with the first protective layer without using any adhesive. The second optical compensation layer is arranged between the second negative C plate and the second protective layer to be in close contact with the second protective layer without using any adhesive. The first and second optical compensation layers are each a coating layer functioning as a λ/4 plate, and each have a thickness of 0.3 to 3 μm. The first and second negative C plates are each a coating layer, and each have a thickness of 0.5 to 10 μm.

摘要翻译： 本发明提供一种液晶显示装置和液晶显示装置，它们均有助于减小厚度; 光学特性优异，生产效率极高的液晶面板的制造方法。 本发明的液晶面板具有第一偏振片，第一保护层，第一光学补偿层，第一负C板，液晶单元，第二负C板，第二光学补偿层，第二保护层 层和第二偏振器。 第一光学补偿层布置在第一保护层和第一负C板之间，以不使用任何粘合剂与第一保护层紧密接触。 第二光学补偿层布置在第二负C板和第二保护层之间，以与第二保护层紧密接触，而不使用任何粘合剂。 第一和第二光学补偿层各自是用作λ/ 4板的涂层，并且各自具有0.3至3μm的厚度。 第一和第二负C板各自是涂层，并且各自具有0.5至10μm的厚度。

公开(公告)号：US20090052028A1

公开(公告)日：2009-02-26

申请号：US11817762

申请日：2006-01-30

申请人： Seiji Umemoto ,  Ikuo Kawamoto ,  Kentarou Takeda

发明人： Seiji Umemoto ,  Ikuo Kawamoto ,  Kentarou Takeda

IPC分类号： G02B1/08 ,  B32B37/14

CPC分类号： G02F1/133634 ,  G02B5/3083 ,  G02B27/281 ,  Y10T428/1036 ,  Y10T428/1041

摘要： An object of the present invention is to provide an optical film capable of contributing to reduction in thickness, preventing uneven heating, and favorably preventing light leak in black display, and an image display apparatus using such an optical film. An optical film of the present invention includes a polarizer, a first optical compensation layer having a refractive index profile of nx>ny=nz, and a second optical compensation layer having a refractive index profile of nx>ny>nz in the stated order. In the optical film, an angle formed between an absorption axis of the polarizer and a slow axis of the first optical compensation layer is +17° to +27° or −17° to −27°, an angle formed between the absorption axis of the polarizer and a slow axis of the second optical compensation layer is +85° to +95°, and an Nz coefficient of the second optical compensation layer is 1.2≦Nz≦2.

摘要翻译： 本发明的目的是提供一种能够有助于减小厚度，防止不均匀加热，有利地防止黑色显示器中的漏光的光学膜和使用这种光学膜的图像显示装置。 本发明的光学膜包括偏振器，具有nx> ny = nz的折射率分布的第一光学补偿层，以及按照所述顺序具有nx> ny> nz的折射率分布的第二光学补偿层。 在光学膜中，在偏振片的吸收轴与第一光学补偿层的慢轴之间形成的角度为+ 17°至+ 27°或-17°至-27°， 偏振器和第二光学补偿层的慢轴为+ 85°至+ 95°，第二光学补偿层的Nz系数为1.2 <= Nz <= 2。

公开(公告)号：US20090017203A1

公开(公告)日：2009-01-15

申请号：US11814744

申请日：2006-01-24

申请人： Kazuya Hada ,  Ikuo Kawamoto ,  Hideyuki Yonezawa ,  Takashi Kamijou ,  Seiji Umemoto

发明人： Kazuya Hada ,  Ikuo Kawamoto ,  Hideyuki Yonezawa ,  Takashi Kamijou ,  Seiji Umemoto

IPC分类号： B05D3/12 ,  B05D5/00

CPC分类号： G02F1/133784 ,  C08J7/18 ,  C08J2301/12 ,  C09K19/2007 ,  C09K2019/0448 ,  G02F1/133305

摘要： This invention provides a method for producing an optical film, the method comprising a rubbing treatment step of rubbing the surface of a lengthy plastic film F with a rubbing roll 4 obtained by winding a raised fabric 4a, an application step of applying a liquid crystalline molecule to the surface of the plastic film processed through said rubbing treatment step and a fixing step of fixing said applied liquid crystalline molecule. In the rubbing treatment step, the lengthy plastic film is supported and conveyed by a conveyer belt 3 having a metal surface, and plural backup rolls 5 which support the underside of the conveyer belt supporting the plastic film are disposed opposite to said rubbing roll, to set a rubbing strength RS defined by the following equation (1) to 2600 mm or more (more preferably 3400 mm or more).

摘要翻译： 本发明提供一种光学薄膜的制造方法，其特征在于，该方法包括：摩擦处理步骤，其通过卷绕凸起的织物4a而获得的摩擦辊4摩擦长的塑料薄膜F的表面;施加液晶分子 通过所述摩擦处理步骤处理的塑料膜的表面和固定所施加的液晶分子的定影步骤。 在摩擦处理步骤中，通过具有金属表面的输送带3支撑并输送长时间的塑料膜，并且支撑支撑塑料膜的输送带的下侧的多个支承辊5设置在与所述摩擦辊相对的位置， 将由下式（1）定义的摩擦强度RS设定为2600mm以上（更优选为3400mm以上）。

公开(公告)号：US20070139773A1

公开(公告)日：2007-06-21

申请号：US11655249

申请日：2007-01-19

申请人： Ikuo Kawamoto ,  Seiji Umemoto ,  Takashi Kamijou

发明人： Ikuo Kawamoto ,  Seiji Umemoto ,  Takashi Kamijou

IPC分类号： G02B5/30 ,  G02B27/28

CPC分类号： G02B5/3016

摘要： The present invention provides: a method of producing a broadband and wide viewing angle elliptically polarizing plate having excellent characteristics in an oblique direction as well; and an image display using the elliptically polarizing plate obtained through the method. The method of producing an elliptically polarizing plate according to the present invention includes the steps of: subjecting a surface of a transparent protective film to alignment treatment; forming a first birefringent layer by applying a liquid crystal composition onto the surface of the transparent protective film subjected to the alignment treatment; laminating a polarizer on a surface of the transparent protective film opposite to the surface subjected to the alignment treatment; and forming a second birefringent layer by laminating a polymer film on a surface of the first birefringent layer, in which the elliptically polarizing plate has a relationship represented by the following expression (1) 2α+40°

摘要翻译： 本发明提供一种在倾斜方向上具有优异特性的宽带宽视角椭圆偏光板的制造方法。 以及使用通过该方法获得的椭圆偏光板的图像显示。 根据本发明的椭圆偏光板的制造方法包括以下步骤：对透明保护膜的表面进行取向处理; 通过将液晶组合物施加到经过取向处理的透明保护膜的表面上来形成第一双折射层; 在与所述取向处理的表面相对的所述透明保护膜的表面上层叠偏振片; 并且通过在第一双折射层的表面上层叠聚合物膜来形成第二双折射层，其中椭圆偏振片具有由以下表达式（1）表示的关系<？in-line-formula description =“In-line 公式“end =”lead“？> 2alpha + 40° ）中，α表示偏振片的吸收轴与透明保护膜的取向方向之间的角度，β表示偏振片的吸收轴与第二双折射层的慢轴之间的角度。