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1. 发明专利

JP2013190779A Liquid crystal display device 有权
标题翻译：液晶显示装置
公开(公告)号：JP2013190779A
公开(公告)日：2013-09-26
申请号：JP2013020336
申请日：2013-02-05
申请人： Keio Gijuku , 学校法人慶應義塾 , Nitto Denko Corp , 日東電工株式会社 , Dainippon Printing Co Ltd , 大日本印刷株式会社 , Nitto Jushi Kogyo Kk , 日東樹脂工業株式会社
发明人： KOIKE YASUHIRO , FUCHITA TAKEHITO , MAEZAWA SHOHEI , TAKEMOTO HIROYUKI , MURAKAMI NAHO , NAKAMURA RUNA , ARAKAWA FUMIHIRO , YAMAMOTO HIROSHI , ISHIKAWA TAKESHI , HIGUCHI EIZABURO
IPC分类号： G02F1/13357 , F21S2/00 , F21Y101/02
CPC分类号： G02F1/13362 , G02B6/0038 , G02B6/0053 , G02B6/0056 , G02F1/133504 , G02F1/133528 , G02F1/133536 , G02F1/1336 , G02F1/133606 , G02F1/133615 , G02F1/13363 , G02F1/1337 , G02F2001/133531 , G02F2001/133607
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal display device that has high utilization efficiency of light, that can display a bright video, and that has no color turbidity in an image.SOLUTION: A liquid crystal display device comprises: a liquid crystal display panel 15 provided with a liquid crystal cell 12 between a first polarization plate 13 and a second polarization plate 14; and a surface light source unit 20 for lighting the liquid crystal display panel 15. The surface light source unit 20 includes: a light source part 10; and a light guide plate 21 that makes light from the light source part 10 incident from a light incidence surface facing the light source part and that emits polarization light having a maximum strength of directivity in a first direction forming a predetermined angle from a normal direction of a light emitting surface. The second polarization plate 14 includes: a polarization light part 14a containing an absorption type polarizer; and a prism part 14b arranged on a light guide plate side of the polarization light part 14a and arranged with a plurality of columnar unit prisms forming convex shapes on the light guide plate side. Polarization light emitted from the light guide plate 21 has a ratio La/Lt, of an integrated intensity La of emitted light in a range of a polar angle of 50°-80° and an azimuth angle of 135°-225° and in a range of the polar angle of 0°-45° and the azimuth angle of 315°-360° to an integrated intensity La of the whole emitted light, which is 0.3 or more.
摘要翻译：要解决的问题：提供一种具有高的利用效率的液晶显示装置，其可以显示明亮的视频，并且在图像中没有颜色混浊。解决方案：一种液晶显示装置，包括：液晶显示器在第一偏振板13和第二偏光板14之间设置有液晶单元12的面板15; 以及用于点亮液晶显示面板15的面光源单元20.面光源单元20包括：光源部10; 以及导光板21，其使来自光源部10的光从面向光源部的光入射面入射，并且从第一方向发射具有最大的方向性强度的偏振光，从第一方向形成预定角度，发光面。第二偏振板14包括：包含吸收型偏振器的偏振光部14a; 以及棱镜部14b，其配置在偏振光部14a的导光板侧，并且在导光板侧配置有形成凸形的多个柱状单位棱镜。从导光板21发射的偏振光的极化角为50°-80°，方位角为135°-225°的发射光的积分强度La的比率La / Lt， 0°-45°的极角范围和315°-360°的方位角相对于整个发射光的积分强度La为0.3以上。

2. 发明专利

JP2013190778A Liquid crystal display device 审中-公开
标题翻译：液晶显示装置
公开(公告)号：JP2013190778A
公开(公告)日：2013-09-26
申请号：JP2013020335
申请日：2013-02-05
申请人： Keio Gijuku , 学校法人慶應義塾 , Dainippon Printing Co Ltd , 大日本印刷株式会社 , Nitto Denko Corp , 日東電工株式会社 , Nitto Jushi Kogyo Kk , 日東樹脂工業株式会社
发明人： KOIKE YASUHIRO , NAKAMURA RUNA , ARAKAWA FUMIHIRO , YAMAMOTO HIROSHI , FUCHITA TAKEHITO , MAEZAWA SHOHEI , TAKEMOTO HIROYUKI , MURAKAMI NAHO , ISHIKAWA TAKESHI , HIGUCHI EIZABURO
IPC分类号： G02F1/13357 , F21S2/00 , F21Y101/02
CPC分类号： G02B6/0038 , G02B5/045 , G02B6/0053 , G02B6/0068 , G02F1/133528 , G02F1/133536 , G02F1/1336
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal display device that has high utilization efficiency of light and can display a bright video.SOLUTION: A liquid crystal display device comprises: a liquid crystal display panel 15; and a surface light source unit 20. The surface light source unit 20 includes: a light source part; a light guide plate 21 that makes light from the light source part incident from a light incidence surface facing the light source part, that has a maximum strength of directivity in a first direction forming a predetermined angle from a normal direction of a light emitting surface in a surface nearly parallel to a light guiding direction of light, and that emits first directivity light that is polarization light having a high ratio of a polarization component vibrating in the surface; and a prism sheet 30 that emits the first directivity light as a second directivity light directed in a second direction in a predetermined angle from the normal direction of the light emitting surface of the light guide plate while substantially maintaining a polarization state of the first directivity light. A ridge line direction of a unit prism is nearly parallel to the light incidence surface of the light guide plate 21, a transmission of axis of a second polarization plate 14 is nearly parallel to a polarization direction of the second directivity light and a light guiding direction of light of the light guide palate 21, and the transmission axis of the second polarization plate 14 is nearly orthogonal to a transmission axis of a first polarization plate 13.
摘要翻译：要解决的问题：提供一种具有高利用率的光并能够显示明亮视频的液晶显示装置。解决方案：一种液晶显示装置，包括：液晶显示面板15; 和面光源单元20.面光源单元20包括：光源部; 使来自光源部的光从面对光源部的光入射面入射的导光板21，其具有从第一方向的最大强度方向与发光面的法线方向成规定的角度与光的导光方向大致平行的表面，发出第一方向性光，该方向性光是表面振动的偏振分量的高比率的偏振光; 以及棱镜片30，其将基本上保持第一方向性光的偏振状态的第一方向性光作为从导光板的发光面的法线方向以规定角度朝向第二方向的第二方向性光，。单位棱镜的棱线方向与导光板21的光入射面几乎平行，第二偏光板14的轴的透射率几乎平行于第二方向性光的偏振方向，导光方向导光腭21的光，第二偏光板14的透射轴与第一偏光板13的透射轴几乎正交。

3. 发明专利

JP2012088692A Light diffusing element, polarizing plate with light diffusing element, polarizing element, and liquid crystal display device using them 有权
标题翻译：光扩散元件，带有光扩散元件的极化板，极化元件和使用它们的液晶显示器件
公开(公告)号：JP2012088692A
公开(公告)日：2012-05-10
申请号：JP2011202284
申请日：2011-09-15
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： NISHIMURA AKINORI , NAKAMURA TSUNEZO , TAKEMOTO HIROYUKI , FUCHITA TAKEHITO , YAMAGATA KAZUTO , SHUDO SHUNSUKE , TAKITA TOMOHITO
IPC分类号： G02B5/02 , G02B5/30 , G02F1/1333 , G02F1/1335 , G02F1/13357
CPC分类号： G02B5/0294 , G02B5/0242 , G02B5/0278 , G02F1/13338 , G02F1/133504 , G09F13/0409
摘要： PROBLEM TO BE SOLVED: To provide a thin-film light diffusing element capable of achieving low backscattering properties and high haze.SOLUTION: The light diffusing element comprises a first region which has a first refractive index n1, a refractive index modulation region which surrounds the first region and has a substantially spherical shell-like shape, and a second region which is located in the refractive index modulation region on the opposed side to the first region and has a second refractive index n2. The light diffusing element satisfies the following formulae (1) and (2): (1) 0.0006≤Δn/L; and (2) 10≤(Δn)×A×B≤100, where Δn represents the absolute value |n1 - n2| of the difference between the first refractive index n1 and the second refractive index n2, L (nm) represents an average thickness of the refractive index modulation region, the unit of Δn/L is (nm), A represents the number of parts by weight of a material constituting the first region relative to 100 parts by weight of the entire light-diffusing element, and B represents the number of parts by weight of a material constituting the second region relative to 100 parts by weight of the entire light-diffusing element.
摘要翻译：要解决的问题：提供能够实现低背散射性和高雾度的薄膜光漫射元件。光散射元件包括具有第一折射率n1的第一区域，围绕第一区域并且具有大致球形的壳状形状的折射率调制区域，以及位于第二区域中的第二区域折射率调制区域，并且具有第二折射率n2。光漫射元件满足下式（1）和（2）：（1）0.0006≤Δn/ L; 和（2）10≤（Δn） 2 ×A×B≤100，其中Δn表示第一折射率n1和第二折射率n1之间的差的绝对值¾n1-n2¾ 折射率n2，L（nm）表示折射率调制区域的平均厚度，Δn/ L的单位为（nm 1 ），A表示部件数的构成第一区域的材料相对于整个光漫射元件的100重量份，B表示构成第二区域的材料的重量份数相对于整个发光元件的100重量份，漫射元件版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2008221746A Hard coat film, hard coat film laminate and image display device 有权
标题翻译：硬包装薄膜，硬壳薄膜和图像显示装置
公开(公告)号：JP2008221746A
公开(公告)日：2008-09-25
申请号：JP2007066377
申请日：2007-03-15
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： FUCHITA TAKEHITO , UMEMOTO SEIJI
IPC分类号： B32B27/18 , B32B7/02 , G02B1/10 , G02B1/14
摘要： PROBLEM TO BE SOLVED: To provide a thin hard coat film having good hard coat properties while suppressing curling of a film when forming a hard coat layer on a transparent film. SOLUTION: The hard coat film comprises a hard coat layer 3 containing, as a main component, a resin 4 curable by heating or an ionizing radiation on at least one surface of a transparent film 2, and the hard coat layer 3 contains a tabular glass fine powders 10 which is subjected to a silane coupling agent, and the tabular glass powders 10 are arranged fixedly in almost parallel to a surface 21 of a transparent film 2. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：在透明膜上形成硬涂层时，提供具有良好的硬涂层性能的薄的硬涂膜，同时抑制膜的卷曲。解决方案：硬涂膜包括硬涂层3，该硬涂层3含有通过加热固化的树脂4或透明膜2的至少一个表面上的电离辐射，并且硬涂层3含有经历硅烷偶联剂的片状玻璃细粉末10和平板状玻璃粉末10几乎平行于透明膜2的表面21而布置。（C）2008，JPO＆INPIT

5. 发明专利

JP2010250297A Composite polarizing plate and liquid crystal display device 有权
标题翻译：复合极化板和液晶显示装置
公开(公告)号：JP2010250297A
公开(公告)日：2010-11-04
申请号：JP2010059182
申请日：2010-03-16
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： SHUDO SHUNSUKE , TAKEMOTO HIROYUKI , FUCHITA TAKEHITO , NISHIMURA AKINORI
IPC分类号： G02B5/30 , B32B7/02 , B32B27/18 , G02B5/02 , G02F1/1333 , G02F1/1335 , G02F1/13357
CPC分类号： G02F1/133528 , G02F1/133504 , G02F2202/28
摘要： PROBLEM TO BE SOLVED: To provide a composite polarizing plate excellent in visibility under bright environment, capable of reducing parallax and capable of reducing thickness of the liquid crystal display device, and to provide a liquid crystal display device.
SOLUTION: The composite polarizing plate is used in the liquid crystal display device including a liquid crystal cell, a front substrate, and a parallel light source device and has a polarizer and a light diffusion adhesive layer arranged on one side of the polarizer. The composite polarizing plate is arranged to bring the light diffusion adhesive layer into contact with the front substrate for use in the liquid crystal display device. Since the front substrate can be joined with the light diffusion adhesive layer by using this composite polarizing plate, an air layer is not formed between the polarizer and the front substrate. Consequently, this composite polarizing plate achieves excellent visibility under bright environment, reduces palallax, makes the liquid crystal display device thin, and significantly improves the effect of improvement of front contrast ratio by the parallel light source device.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种在明亮环境下可见度优异的复合偏光板，能够减小视差并能够减小液晶显示装置的厚度，并提供液晶显示装置。解决方案：复合偏光板用于包括液晶单元，前基板和平行光源装置的液晶显示装置中，并且具有偏振器和布置在偏振器的一侧的光扩散粘合剂层。复合偏光板被布置成使光扩散粘合剂层与用于液晶显示装置的前基板接触。由于通过使用该复合偏光板可以将前基板与光扩散粘合剂层接合，所以在偏振片与前基板之间不形成空气层。因此，该复合偏光板在明亮的环境下实现了良好的可视性，降低了视差，使液晶显示装置变薄，并显着提高了平行光源装置对前方对比度提高的效果。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2010015038A Liquid crystal display device 审中-公开
标题翻译：液晶显示装置
公开(公告)号：JP2010015038A
公开(公告)日：2010-01-21
申请号：JP2008175925
申请日：2008-07-04
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： TAKEMOTO HIROYUKI , FUCHITA TAKEHITO
IPC分类号： G02F1/1335 , G02F1/13357 , G02F1/13363
CPC分类号： G02F1/133504 , G02F1/133606 , G02F1/13363 , G02F2001/133562
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal display device excellent in contrast not only in an oblique direction but in a front face direction. SOLUTION: The liquid crystal display device includes at least: from the view side, a first polarizer 21; a liquid crystal cell 10 having a liquid crystal layer 13 between a first substrate 11 and a second substrate 12; an optical compensation element 30; a second polarizer 22; and a light collection backlight 80. Preferably, the liquid crystal display device further includes a diffusion element at the view side of the first polarizer. Also, the light collection backlight 80 preferably has a luminance half-value angle of 3 to 30 degrees. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种不仅在倾斜方向上而且在正面方向上对比度优异的液晶显示装置。解决方案：液晶显示装置至少包括：从视野侧观察第一偏振器21; 在第一基板11和第二基板12之间具有液晶层13的液晶单元10; 光学补偿元件30; 第二偏振器22; 和聚光背光源80.优选地，液晶显示装置还包括在第一偏振器的视图侧的扩散元件。此外，光收集背光源80优选具有3至30度的亮度半值角度。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2009251035A Depolarizing film, method for production thereof, optical film, and liquid crystal display 有权
标题翻译：分散膜，其生产方法，光学膜和液晶显示
公开(公告)号：JP2009251035A
公开(公告)日：2009-10-29
申请号：JP2008095299
申请日：2008-04-01
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： FUCHITA TAKEHITO , MIYATAKE MINORU , KAMIJO TAKUJI , YONEZAWA HIDEYUKI
IPC分类号： G02B5/30 , G02F1/1335 , G02F1/13363
CPC分类号： G02B5/3016 , G02F1/133634 , G02F2001/133638 , G02F2201/38 , G02F2201/50 , G02F2203/06 , G02F2413/07 , G02F2413/11 , G02F2413/12 , Y10T428/10 , Y10T428/1005 , Y10T428/1036 , Y10T428/1041
摘要： PROBLEM TO BE SOLVED: To provide a thin depolarizing film that can be easily produced, and a method for production of the film. SOLUTION: The depolarizing film comprises a film containing at least one liquid crystalline compound, wherein the liquid crystalline compound comprises a liquid crystalline compound (1) that satisfies the relation: 0.05≤Δn≤0.5 (wherein: Δn=ne-no; ne represents an extraordinary-ray refractive index; and no represents an ordinary ray reflective index), and the film has a haze value of 15% or less and a thickness of 1 to 10 μm. The film can convert linearly polarized light in the whole directions incident on the film plane into circularly polarized light. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供可以容易地制造的薄去极化膜以及制造膜的方法。解偏光膜包含含有至少一种液晶化合物的膜，其中液晶化合物包含满足以下关系的液晶化合物（1）：0.05≤Δn≤0.5（其中：Δn= ne-no ; ne表示非常光线折射率，no表示普通的光线反射率），该膜的雾度值为15％以下，厚度为1〜10μm。该膜可以将入射到膜平面上的整个方向的线偏振光转换为圆偏振光。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2009116197A Anisotropic light scattering film, manufacturing method thereof, optical film and image display device 审中-公开
标题翻译：各向异性光散射膜，其制造方法，光学膜和图像显示装置
公开(公告)号：JP2009116197A
公开(公告)日：2009-05-28
申请号：JP2007291261
申请日：2007-11-08
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： FUCHITA TAKEHITO , MIYATAKE MINORU
IPC分类号： G02B5/02 , G02F1/1335
摘要： PROBLEM TO BE SOLVED: To provide an anisotropic light scattering film which can substantially transmit incident light from the front direction, on the other hand, can scatter incident light from the oblique direction and has an angular dependence with respect to light scattering. SOLUTION: The anisotropic light scattering film is characterized in that a dispersion component satisfying a refractive index distribution of nx≈ny COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：另一方面，为了提供从前方向基本上透射入射光的各向异性光散射膜可以散射来自倾斜方向的入射光，并且相对于光散射具有角度依赖性。解决方案：各向异性光散射膜的特征在于，满足nx≈ny

9. 发明专利

JP2014238478A 液晶表示装置审中-公开
标题翻译：液晶显示装置
公开(公告)号：JP2014238478A
公开(公告)日：2014-12-18
申请号：JP2013120512
申请日：2013-06-07
申请人：日東電工株式会社 , Nitto Denko Corp
发明人： MAEZAWA SHOHEI , NAKAMURA TSUNEZO , FUCHITA TAKEHITO , TAKEMOTO HIROYUKI
IPC分类号： G02F1/13357 , F21S2/00
CPC分类号： G02F1/1335 , G02F1/133524 , G02F1/133606
摘要：【課題】視野角が狭く、かつ、優れた画質を実現し得る液晶表示装置を提供すること。【解決手段】本発明の液晶表示装置は、液晶パネルと、プリズムシートと、導光板と、可視光吸収体とを視認側からこの順に備え、該プリズムシートが、視認側とは反対側に凸部を有し、該可視光吸収体の視感反射率が30%以下である。1つの実施形態においては、本発明の液晶表示装置は、反射型偏光板を含まない。1つの実施形態においては、上記プリズムシートが、三角柱状の単位プリズムを複数並列して構成される。【選択図】図1
摘要翻译：要解决的问题：提供一种具有减小的视角的液晶显示装置，并且可以实现优异的图像质量。解决方案：本发明的液晶显示装置包括液晶面板，棱镜片，导光板，和可见光吸收体，并且棱镜片在与视觉识别侧相反的一侧具有凸部，可见光吸收体的光反射率为30％以下。在一个实施例中，本发明的液晶显示装置不包括反射型偏振片。在一个实施例中，棱镜片具有平行布置的多个三角形单元棱镜。

10. 发明专利

JP2014228581A 光学部材、偏光板のセットおよび液晶表示装置有权
标题翻译：光学部件，偏振片组和液晶显示装置
公开(公告)号：JP2014228581A
公开(公告)日：2014-12-08
申请号：JP2013106044
申请日：2013-05-20
申请人：日東電工株式会社 , Nitto Denko Corp
发明人： NAKAMURA TSUNEZO , MAEZAWA SHOHEI , FUCHITA TAKEHITO , TAKEMOTO HIROYUKI , MURAKAMI NAO
IPC分类号： G02B5/30 , G02B5/02 , G02F1/1335
CPC分类号： G02F1/133536 , G02B5/02 , G02B5/305 , G02F2001/133607
摘要：【課題】機械的強度に優れ、かつ、高い照度を有する液晶表示装置を実現し得る光学部材を提供すること。【解決手段】本発明の光学部材は、偏光板と反射型偏光子とプリズムシートとをこの順に含み、反射型偏光子内に45?で入射した波長650nmの直線偏光に対する反射率が70%以上である。代表的には、プリズムシートは、反射型偏光子と反対側に凸となる柱状の単位プリズムが複数配列されて構成されている。【選択図】図1
摘要翻译：要解决的问题：提供一种能够实现具有优异的机械强度和高照度的液晶显示装置的光学构件。解决方案：本发明的光学构件在其中包括偏振板，反射偏振器和棱镜片并且具有70％以上的反射率为线性极化，其具有650nm的波长并入射到反射型偏振器中为45°。代表性地，棱镜片具有在反射偏振器的相对侧上形成凹部并排列成多个的柱状单位棱镜。

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