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1. 发明专利

JP2008209652A Manufacturing method of elliptical polarizing plate 审中-公开
标题翻译：椭圆偏振板的制造方法
公开(公告)号：JP2008209652A
公开(公告)日：2008-09-11
申请号：JP2007046192
申请日：2007-02-26
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： KAWAMOTO IKURO , YONEZAWA HIDEYUKI , KAMIJO TAKUJI , HATA KAZUYA
IPC分类号： G02B5/30
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method by which an elliptical polarizing plate having superior contrast in an oblique direction, a wide band and a wide visual field angle can be manufactured so as to have uniform optical characteristics at low cost. SOLUTION: The manufacturing method of the elliptical polarizing plate includes a first birefringence layer forming step for forming a first birefringence layer 13, having refractive index characteristics of nz>nx=ny on a protective film 12; an a second birefringence layer forming step for forming a second birefringence layer 14, having refractive index characteristics of nx>ny=nz on the first birefringence layer 13; an a third birefringence layer forming step for forming a third birefringence layer 15, having refractive index characteristics of nx>ny>nz on the second birefringence layer 14; and a polarizer layering step for layering a polarizer 11 on the surface of the protective film 12, where the first birefringence layer is not formed. The second birefringence layer is formed on the surface of a plastic film F, subjected to rubbing treatment by a rubbing roll 4 and a plurality of backup roll 51 positioned directly under the rubbing roll 4 and transferred to the first birefringence layer 13. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造方法，通过该方法可以制造具有在倾斜方向上具有优异对比度，宽带和宽视场角的椭圆偏振片，以便以低成本具有均匀的光学特性。解决方案：椭圆偏光板的制造方法包括在保护膜12上形成折射率特性为nz> nx = ny的第一双折射层13的第一双折射层形成步骤; 第二双折射层形成步骤，用于形成在第一双折射层13上具有nx> ny = nz的折射率特性的第二双折射层14; 在第二双折射层14上形成具有nx> ny> nz的折射率特性的第三双折射层15的第三双折射层形成步骤; 以及用于在保护膜12的未形成第一双折射层的表面上分层偏振片11的偏振器层叠步骤。第二双折射层形成在通过摩擦辊4进行摩擦处理的塑料膜F的表面上，以及直接位于摩擦辊4下方的多个支承辊51，并转移到第一双折射层13。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2008209651A Manufacturing method of elliptical polarizing plate 审中-公开
标题翻译：椭圆偏振板的制造方法
公开(公告)号：JP2008209651A
公开(公告)日：2008-09-11
申请号：JP2007046191
申请日：2007-02-26
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： KAWAMOTO IKURO , HATA KAZUYA , YONEZAWA HIDEYUKI , KAMIJO TAKUJI
IPC分类号： G02B5/30
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method by which an elliptical polarizing plate having superior contrast in an oblique direction, a wide band and a wide visual field angle can be manufactured so as to have uniform optical characteristics at low cost. SOLUTION: The manufacturing method of the elliptical polarizing plate includes a rubbing treatment step for subjecting a protective film 12 to rubbing treatment; an a first refringence layer forming step for forming a first refringence layer 13 having refractive index characteristics of nx>ny=nz on the protective film 12; an a second birefringence layer forming step for forming a second birefringence layer 14, having refractive index characteristics of nz>nx=ny on the first birefringence layer 13; an a third birefringence layer forming step for forming a third birefringence layer 15, having refractive index characteristics of nx>ny>nz on the second birefringence layer 14; and a polarizer layering step for layering a polarizer 11 on the surface of the protective film 12, where the first birefringence layer is not formed. The rubbing treatment is performed by using a rubbing roll 4 and a plurality of backup rolls 51 positioned directly under the rubbing roll 4. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造方法，通过该方法可以制造具有在倾斜方向上具有优异对比度，宽带和宽视场角的椭圆偏振片，以便以低成本具有均匀的光学特性。解决方案：椭圆偏光板的制造方法包括用于对保护膜12进行摩擦处理的摩擦处理步骤; 第一折射层形成步骤，用于在保护膜12上形成折射率特性为nx> ny = nz的第一折射层13; 在第一双折射层13上形成具有nz> nx = ny的折射率特性的第二双折射层14的第二双折射层形成步骤; 在第二双折射层14上形成具有nx> ny> nz的折射率特性的第三双折射层15的第三双折射层形成步骤; 以及用于在保护膜12的未形成第一双折射层的表面上分层偏振片11的偏振器层叠步骤。通过使用摩擦辊4和位于摩擦辊4正下方的多个支承辊51进行摩擦处理。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2008185796A Liquid crystal panel and liquid crystal display 有权
标题翻译：液晶板和液晶显示器
公开(公告)号：JP2008185796A
公开(公告)日：2008-08-14
申请号：JP2007019276
申请日：2007-01-30
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： BITO MASATO , SABAE MISAKI , KAWAMOTO IKURO , SHUDO SHUNSUKE
IPC分类号： G02F1/13363 , G02B5/30 , G02F1/1335
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal panel and a liquid crystal display which have excellent screen contrast and less color shift.
SOLUTION: The liquid crystal panel is provided with a liquid crystal cell, a first polarizer disposed on one side of the liquid crystal cell and a second polarizer disposed on the other side of the liquid crystal cell. The liquid crystal panel is further provided with a first optical compensation layer wherein a refractive index ellipsoid shows a relationship of nx>ny=nz and in-plane retardation Re
1 is 80 to 300 nm, a second optical compensation layer wherein a refractive index ellipsoid shows a relationship of nx>ny=nz and in plane retardation Re
2 is 80 to 200 nm and a third optical compensation layer wherein a refractive index ellipsoid shows a relationship of nx=ny>nz which are disposed sequentially from the first polarizer side between the liquid crystal cell and the first polarizer. The liquid crystal panel is further provided with a fourth optical compensation layer wherein a refractive index ellipsoid shows a relationship of nz>nx=ny, a fifth optical compensation layer wherein a refractive index ellipsoid shows a relationship of nx>ny=nz and in-plane retardation Re
5 is 80 to 200 nm and a sixth optical compensation layer wherein a refractive index ellipsoid shows a relationship of nx=ny>nz which are disposed sequentially from the second polarizer side between the liquid crystal cell and the second polarizer.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的屏幕对比度和较少颜色偏移的液晶面板和液晶显示器。解决方案：液晶面板设置有液晶单元，设置在液晶单元一侧的第一偏振器和设置在液晶单元另一侧的第二偏振器。液晶面板还设置有第一光学补偿层，其中折射率椭球表示nx> ny = nz和面内相位差Re 1 的关系为80至300nm，第二光学补偿层，其中折射率椭球表示nx> ny = nz的关系，并且在平面延迟中Re 2 为80至200nm，并且第三光学补偿层，其中折射率椭球表示nx的关系 nz，其从液晶单元和第一偏振器之间的第一偏振器侧依次布置。液晶面板还设置有第四光学补偿层，其中折射率椭圆体表示nz> nx = ny的关系，第五光学补偿层，其中折射率椭球表示nx> ny = nz的关系，平面延迟Re 5 为80〜200nm，第六光学补偿层，其中折射率椭圆体表示从液晶单元之间的第二偏振器侧依次配置的nx = ny> nz的关系和第二偏振器。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2008151961A Method for manufacturing optical film 审中-公开
标题翻译：制造光学膜的方法
公开(公告)号：JP2008151961A
公开(公告)日：2008-07-03
申请号：JP2006338966
申请日：2006-12-15
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： BITO MASATO , HATA KAZUYA , KAMIJO TAKUJI , KAWAMOTO IKURO , UMEMOTO SEIJI
IPC分类号： G02B5/30 , G02F1/13363
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an optical film preventing light leakage in black display of a liquid crystal display device inexpensively with uniform optical characteristics. SOLUTION: The method includes steps of: rubbing a long plastic film F; applying and fixing liquid crystalline molecules on the surface of the rubbed film to form a first optical compensation layer 13 satisfying nx>ny=nz; and laminating a second optical compensation layer 14 satisfying nx>ny>nz and 1.2≤Nz≤2 thereon. In the rubbing step, the film is conveyed by a conveyer belt 3 having a metal surface, and a backup roll mechanism 5 supporting the undersurface of the conveyer belt is arranged. The mechanism includes a plurality of backup rolls 51 individually rotating along the conveyance direction of the conveyer belt, and each backup roll is arranged along a straight line directly under the rubbing roll and almost parallel to the rotation axis of the rubbing roll. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供一种以均匀的光学特性廉价地制造防止液晶显示装置的黑色显示中的漏光的光学膜的方法。解决方案：该方法包括以下步骤：摩擦长塑料膜F; 在摩擦膜的表面上施加和固定液晶分子以形成满足nx> ny = nz的第一光学补偿层13; 并且在其上层叠满足nx> ny> nz和1.2≤Nz≤2的第二光学补偿层14。在摩擦步骤中，通过具有金属表面的传送带3传送胶片，并且布置有支撑输送带下表面的支承辊机构5。该机构包括沿输送带的输送方向单独旋转的多个支承辊51，并且每个支承辊沿直线布置在摩擦辊的正下方并且几乎平行于摩擦辊的旋转轴线。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2008020591A Polarizing plate with optical compensation layer, liquid crystal panel using the same, liquid crystal display device, image display apparatus and manufacturing method of polarizing plate with optical compensation layer 审中-公开
标题翻译：具有光学补偿层的偏光板，使用其的液晶面板，液晶显示装置，图像显示装置和具有光学补偿层的偏振板的制造方法
公开(公告)号：JP2008020591A
公开(公告)日：2008-01-31
申请号：JP2006191254
申请日：2006-07-12
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： MORI TAKUYA , KITAMURA YOSHIAKI , HIRAI MARIKO , TAKAHASHI NAOKI , KAWAMOTO IKURO , HATA KAZUYA , YONEZAWA HIDEYUKI
IPC分类号： G02B5/30 , G02F1/1335 , G02F1/13363
摘要： PROBLEM TO BE SOLVED: To provide a polarizing plate with optical compensation layer which contributes to reduction of the thickness and weight and is excellent in heat resistance and moisture resistance. SOLUTION: The polarizing plate 10 with optical compensation layer is prepared by stacking a polarizer 11, a first optical compensation layer 12, a second optical compensation layer 13 and a third optical compensation layer 14 in this order. The first optical compensation layer 12 is formed of a liquid crystal compound, has a refractive index distribution of nx>ny=nz and the in-plane retardation Re 1 is 200 to 300 nm. The second optical compensation layer 13 has a refractive index distribution of nx>ny=nz and the in-plane retardation Re 2 is 80 to 170 nm. The third optical compensation layer 14 is formed of a material presenting optically negative uniaxiality and the material is obliquely aligned. Preferably, the second optical compensation layer 13 and the third optical compensation layer 14 are stuck to each other via only an adhesive layer. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有光学补偿层的偏光板，其有助于减小厚度和重量，并且耐热性和耐湿性优异。解决方案：具有光学补偿层的偏振板10依次层叠偏振片11，第一光学补偿层12，第二光学补偿层13和第三光学补偿层14来制备。第一光学补偿层12由液晶化合物形成，折射率分布为nx> ny = nz，面内相位差Re 1 为200〜300nm。第二光学补偿层13的折射率分布为nx> ny = nz，面内相位差Re 2 为80〜170nm。第三光学补偿层14由具有光学负单轴性的材料形成，并且材料倾斜地对准。优选地，第二光学补偿层13和第三光学补偿层14仅通过粘合剂层彼此粘合。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2008015396A Method for manufacturing optical film 审中-公开
标题翻译：制造光学膜的方法
公开(公告)号：JP2008015396A
公开(公告)日：2008-01-24
申请号：JP2006188899
申请日：2006-07-10
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： KAMIJO TAKUJI , KAWAMOTO IKURO , KOJIMA OSAMU
IPC分类号： G02B5/30 , G02F1/13 , G02F1/1333 , G02F1/13363 , G02F1/1337
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an optical film having uniform optical characteristics at low cost. SOLUTION: The method for manufacturing the optical film includes: a rubbing step of rubbing the surface of an oriented film formed on a long plastic film F, on the surface of which the oriented film is formed, by a rubbing roll 4; an application step of applying a liquid crystal molecule to the rubbed surface of the oriented film; and a fixing step of fixing the applied liquid crystal molecule. At the rubbing step, the plastic film is supported/conveyed by a conveyer belt 3 having a metallic surface, a plurality of backup rolls 5 are arranged so that they support the undersurface of the conveyer belt for supporting the plastic film and are opposed to the rubbing roll, and the rubbing intensity RS to be defined by expression (1): RS=N×M(1+2πr×nr/(v/60)) is set to be ≥2,300 mm. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种以低成本制造具有均匀光学特性的光学膜的方法。光学膜的制造方法包括：通过摩擦辊4摩擦在其上形成有取向膜的长塑料膜F上形成的取向膜的表面的摩擦工序; 将液晶分子施加到取向膜的摩擦面的施加步骤; 以及固定所施加的液晶分子的固定步骤。在摩擦步骤中，塑料膜由具有金属表面的输送带3支撑/输送，多个支承辊5被布置成使得它们支撑输送带的下表面以支撑塑料膜并与摩擦辊和由表达式（1）定义的摩擦强度RS：RS = N×M（1 +2πr×nr /（v / 60））设定为≥3,300mm。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2007328016A Manufacturing method of optical film 有权
标题翻译：光学膜的制造方法
公开(公告)号：JP2007328016A
公开(公告)日：2007-12-20
申请号：JP2006157215
申请日：2006-06-06
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： HATA KAZUYA , KAWAMOTO IKURO , YONEZAWA HIDEYUKI , TSUCHIMOTO KAZUYOSHI
IPC分类号： G02B5/30 , G02F1/13363
CPC分类号： G02F1/13378 , G02B5/3016 , G02F1/13363
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method for manufacturing an optical film having uniform characteristics at a low cost. SOLUTION: The manufacturing method of the optical film has a rubbing processing step of rubbing a surface of a long plastic film F by using a rubbing roll 4 wrapped in a napped cloth, a coating step of applying liquid crystal molecules on the surface of the film subjected to the rubbing processing step and a fixing step of fixing the applied liquid crystal molecules. In the rubbing processing step, the film is supported and conveyed by a conveyor belt 3 having a metal surface and a back-up roll mechanism 5 for supporting an underside of the conveyor belt is disposed. The back-up roll mechanism has a plurality of back-up rolls 51 which respectively rotate along a conveying direction of the conveyor belt and each back-up roll is disposed directly under the rubbing roll and along a straight line being about in parallel with a rotary shaft of the rubbing roll. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种以低成本制造具有均匀特性的光学膜的制造方法。解决方案：光学膜的制造方法具有通过使用缠绕在起绒布中的摩擦辊4摩擦长塑料膜F的表面的摩擦处理步骤，在表面上涂布液晶分子的涂布步骤的摩擦处理步骤的膜和固定所施加的液晶分子的定影步骤。在摩擦处理步骤中，通过设置有具有金属表面的输送带3和用于支撑输送带下侧的支撑辊机构5来支撑和输送薄膜。后备辊机构具有分别沿着输送带的输送方向旋转的多个支承辊51，并且每个支承辊直接配置在摩擦辊的下方并且沿着与摩擦辊的旋转轴。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2007264585A Liquid crystal panel and liquid crystal display device 审中-公开
标题翻译：液晶面板和液晶显示装置
公开(公告)号：JP2007264585A
公开(公告)日：2007-10-11
申请号：JP2006191978
申请日：2006-07-12
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： KAWAMOTO IKURO , UMEMOTO SEIJI , KAMIJO TAKUJI , HATA KAZUYA , YONEZAWA HIDEYUKI
IPC分类号： G02F1/13363 , G02B5/30 , G02F1/1335 , G02F1/139
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal panel which has an excellent display characteristic and can be made thin, and to provide a liquid crystal display device. SOLUTION: The liquid crystal panel is provided with: a liquid crystal cell; a first optical compensation layer being a λ/4 plate which is arranged on one side of the liquid crystal cell and has a refractive index distribution of nx>ny=nz; a second optical compensation layer being a λ/2 plate having a refractive index distribution of nx>ny=nz and a first polarizer; a third optical compensation layer and a fourth optical compensation layer arranged on the other side of the liquid crystal cell; and a fifth optical compensation layer being a λ/2 plate having a refractive index distribution of nx>ny=nz and a second polarizer. The first optical compensation layer is a stretched film of a polymer film. Both of the second optical compensation layer and the fifth optical compensation layer are coating layers containing liquid crystal material. The third optical compensation layer is an inclined alignment layer of a material exhibiting optically negative uniaxiality. The fourth optical compensation layer has a refractive index distribution of nx>nz>ny. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供一种具有优异的显示特性并且可以变薄的液晶面板，并提供一种液晶显示装置。解决方案：液晶面板设有：液晶单元; 第一光学补偿层是布置在液晶单元的一侧上并具有nx> ny = nz的折射率分布的λ/ 4板; 第二光学补偿层，其是具有nx> ny = nz的折射率分布的λ/ 2板和第一偏振器; 布置在液晶单元的另一侧的第三光学补偿层和第四光学补偿层; 以及第五光学补偿层，其是折射率分布为nx> ny = nz的λ/ 2板和第二偏振器。第一光学补偿层是聚合物膜的拉伸膜。第二光学补偿层和第五光学补偿层都是含有液晶材料的涂层。第三光学补偿层是具有光学负单轴性的材料的倾斜取向层。第四光学补偿层的折射率分布为nx> nz> ny。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2007148098A Method of manufacturing optical film, optical film and image display device 审中-公开
标题翻译：制造光学薄膜，光学薄膜和图像显示装置的方法
公开(公告)号：JP2007148098A
公开(公告)日：2007-06-14
申请号：JP2005343771
申请日：2005-11-29
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： KAMIJO TAKUJI , KAWAMOTO IKURO , YONEZAWA HIDEYUKI
IPC分类号： G02B5/30 , G02F1/13363
摘要： PROBLEM TO BE SOLVED: To provide a method capable of efficiently manufacturing an optical film which is capable of reducing both of a double refractive index (average double refractive index) of an optical compensation layer and a variation of in-plane retardation (average in-plane retardation) in the optical film of the same lot and has homogeneous and excellent optical characteristics, to provide an optical film manufactured by the method of manufacturing optical film, and to provide an image display device using the optical film. SOLUTION: The method of manufacturing optical film comprises: a step of aligning the surface of base material; a process of applying a liquid crystalline composition on the aligned surface; and a step of aligning liquid crystalline material in the liquid crystal composition, wherein the liquid crystalline material contains polymerizable monomer and/or cross-linking monomer, the step of aligning liquid crystalline material contains a step of performing polymerization and/or cross-linking of the liquid crystalline material by UV irradiation, the base material is a long-size film and is manufactured according to a production line which continuously flows in the major side direction, and the UV irradiation is performed to the liquid crystalline material in the liquid crystal composition such that a variation ΔT of a temperature T on the specified position from a UV irradiation source which performs the UV irradiation becomes 0 to 4°C. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够有效地制造光学膜的方法，其能够降低光学补偿层的双折射率（平均双折射率）和面内延迟的变化（在同一批次的光学膜中的平均面内延迟），并且具有均匀和优异的光学特性，以提供通过制造光学膜的方法制造的光学膜，并提供使用该光学膜的图像显示装置。解决方案：制造光学膜的方法包括：对准基材表面的步骤; 在对准的表面上施加液晶组合物的方法; 以及液晶组合物中的液晶材料取向的步骤，其中液晶材料含有可聚合单体和/或交联单体，对准液晶材料的步骤包括进行聚合和/或交联的步骤通过紫外线照射的液晶材料，基材是长尺寸膜，并且根据沿主要方向连续流动的生产线制造，并且对液晶组合物中的液晶材料进行UV照射使得从执行紫外线照射的UV照射源的特定位置处的温度T的变化ΔT为0〜4℃。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2006268006A Method for manufacturing elliptically polarizing plate and image display device using the elliptically polarizing plate 有权
标题翻译：使用非极性极化板制造非极性极化板和图像显示装置的方法
公开(公告)号：JP2006268006A
公开(公告)日：2006-10-05
申请号：JP2005303839
申请日：2005-10-19
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： KAWAMOTO IKURO , UMEMOTO SEIJI , KAMIJO TAKUJI , YONEZAWA HIDEYUKI , HATA KAZUYA
IPC分类号： G02B5/30 , G02F1/1335 , G02F1/13363
摘要： PROBLEM TO BE SOLVED: To provide an elliptically polarizing plate which has an excellent characteristic with respect to the oblique direction and has a broad band region and a wide viewing angle. SOLUTION: The manufacturing method of elliptically polarizing plate comprises a process of forming a first birefringence layer on a surface of a transparent protective film, a process of laminating a polarizer on another surface of the transparent protective film and a process of forming a second birefringence layer on the surface of the first birefringence layer, wherein the first birefringence layer and the polarizer are arranged on the opposite sides to each other of the transparent protective film. The process of forming the first birefringence layer comprises a process of applying a liquid crystal material to an alignment substrate, a process of forming the first birefringence layer on the substrate by treating the liquid crystal material and a process of transferring the first birefringence layer to the surface of the transparent protective film, wherein the angle α between an absorption axis of the polarizer and a lagging axis of the first birefringence layer has a prescribed relation to the angle β between the absorption axis of the polarizer and a lagging axis of the second birefringence layer. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：提供一种相对于倾斜方向具有优异特性并具有宽带区域和宽视角的椭圆偏振片。解决方案：椭圆偏振板的制造方法包括在透明保护膜的表面上形成第一双折射层的工艺，在透明保护膜的另一个表面上层压偏振片的工艺和形成在第一双折射层的表面上的第二双折射层，其中第一双折射层和偏振片布置在透明保护膜的彼此的相对侧上。形成第一双折射层的过程包括将液晶材料施加到取向基板的工艺，通过处理液晶材料在基板上形成第一双折射层的工艺以及将第一双折射层转印到透明保护膜的表面，其中偏振片的吸收轴与第一双折射层的滞后轴之间的角度α与偏振片的吸收轴和第二双折射的滞后轴之间的角度β具有规定的关系层。版权所有（C）2007，JPO＆INPIT

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