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1. 发明申请

US20150029442A1 LIQUID CRYSTAL DISPLAY APPARATUS 有权
标题翻译：液晶显示装置
公开(公告)号：US20150029442A1
公开(公告)日：2015-01-29
申请号：US14378169
申请日：2013-02-14
申请人： KEIO UNIVERSITY , DAI NIPPON PRINTING CO., LTD. , NITTO DENKO CORPORATION , NITTO JUSHI KOGYO CO., LTD.
发明人： Yasuhiro Koike , Runa Nakamura , Fumihiro Arakawa , Hiroshi Yamamoto , Takehito Fuchida , Shouhei Maezawa , Hiroyuki Takemoto , Nao Murakami , Tsuyoshi Ishikawa , Eizaburo Higuchi
IPC分类号： F21V8/00 , G02F1/1335
CPC分类号： G02B6/0038 , G02B5/045 , G02B6/0053 , G02B6/0068 , G02F1/133528 , G02F1/133536 , G02F1/1336
摘要： A liquid crystal display apparatus includes a liquid crystal display panel including a liquid crystal cell between first second polarizing plates; and a surface light source device. The surface light source device includes a light source unit, a light guide plate for outputting first directivity light having directivity of maximum intensity in a first direction, which forms a predetermined angle from a normal direction of the light output surface in a plane approximately parallel to a light guiding direction of light, and having a high ratio of a polarized light component oscillating in the plane and a prism sheet being configured to convert the first directivity light into second directivity light directed in a second direction within a predetermined angle from the normal direction of the light output surface of the light guide plate while substantially maintaining a polarization state of the first directivity light.
摘要翻译：一种液晶显示装置，包括在第一第二偏振片之间包括液晶单元的液晶显示面板; 和面光源装置。表面光源装置包括光源单元，导光板，用于输出在第一方向上具有最大强度方向性的第一方向性光，该方向性光在与第一方向大致平行的平面中从光输出表面的法线方向形成预定角度光的引导方向，并且具有在所述平面中振荡的偏振光分量的高比率;以及棱镜片，其被配置为将所述第一方向性光转换成从所述法线方向在预定角度内的沿第二方向指向的第二方向性光的导光板的光输出表面，同时基本保持第一方向性光的偏振状态。

2. 发明授权

US09261731B2 Liquid crystal display apparatus 有权
标题翻译：液晶显示装置
公开(公告)号：US09261731B2
公开(公告)日：2016-02-16
申请号：US14377050
申请日：2013-02-14
申请人： KEIO UNIVERSITY , NITTO DENKO CORPORATION , DAI NIPPON PRINTING CO., LTD. , NITTO JUSHI KOGYO CO., LTD.
发明人： Yasuhiro Koike , Takehito Fuchida , Shouhei Maezawa , Hiroyuki Takemoto , Nao Murakami , Runa Nakamura , Fumihiro Arakawa , Hiroshi Yamamoto , Tsuyoshi Ishikawa , Eizaburo Higuchi
IPC分类号： G02F1/1335 , G02F1/1337 , G02F1/13363 , F21V8/00
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： A liquid crystal display apparatus comprises: a liquid crystal display panel including a liquid crystal cell between a first polarizing plate and a second polarizing plate; and a surface light source device having a light source unit and a light guide plate. In a polarized light output from the light guide plate, when the normal direction of a light output surface is defined to be at a polar angle of 90°, and the light guiding direction of the light guide plate is defined to be a direction of an azimuth angle of 0°-180°, a ratio La/Lt of integrated intensity La of output light in ranges where the polar angle is 50° to 80° and the azimuth angle is 135° to 225°, 0° to 45°, and 315° to 360° to integrated intensity Lt of total output light is 0.3 or more.
摘要翻译：一种液晶显示装置，包括：液晶显示面板，包括在第一偏振片和第二偏振片之间的液晶单元; 以及具有光源单元和导光板的面光源装置。在从导光板输出的偏振光中，当将光输出面的法线方向限定为90°的极角时，将导光板的导光方向定义为方位角0°-180°，极角为50°〜80°，方位角为135°〜225°，0°〜45°的范围内的输出光的积分强度La的比率La / Lt，并且总共输出光的315°至360°与积分强度Lt为0.3以上。

3. 发明授权

US09261640B2 Liquid crystal display apparatus 有权
标题翻译：液晶显示装置
公开(公告)号：US09261640B2
公开(公告)日：2016-02-16
申请号：US14378169
申请日：2013-02-14
申请人： KEIO UNIVERSITY , DAI NIPPON PRINTING CO., LTD. , NITTO DENKO CORPORATION , NITTO JUSHI KOGYO CO., LTD.
发明人： Yasuhiro Koike , Runa Nakamura , Fumihiro Arakawa , Hiroshi Yamamoto , Takehito Fuchida , Shouhei Maezawa , Hiroyuki Takemoto , Nao Murakami , Tsuyoshi Ishikawa , Eizaburo Higuchi
IPC分类号： G02F1/1335 , F21V8/00
CPC分类号： G02B6/0038 , G02B5/045 , G02B6/0053 , G02B6/0068 , G02F1/133528 , G02F1/133536 , G02F1/1336
摘要： A liquid crystal display apparatus includes a liquid crystal display panel including a liquid crystal cell between first second polarizing plates; and a surface light source device. The surface light source device includes a light source unit, a light guide plate for outputting first directivity light having directivity of maximum intensity in a first direction, which forms a predetermined angle from a normal direction of the light output surface in a plane approximately parallel to a light guiding direction of light, and having a high ratio of a polarized light component oscillating in the plane and a prism sheet being configured to convert the first directivity light into second directivity light directed in a second direction within a predetermined angle from the normal direction of the light output surface of the light guide plate while substantially maintaining a polarization state of the first directivity light.
摘要翻译：一种液晶显示装置，包括在第一第二偏振片之间包括液晶单元的液晶显示面板; 和面光源装置。表面光源装置包括光源单元，导光板，用于输出在第一方向上具有最大强度方向性的第一方向性光，该方向性光在与第一方向大致平行的平面中从光输出表面的法线方向形成预定角度光的引导方向，并且具有在所述平面中振荡的偏振光分量的高比率;以及棱镜片，其被配置为将所述第一方向性光转换成从所述法线方向在预定角度内的沿第二方向指向的第二方向性光的导光板的光输出表面，同时基本保持第一方向性光的偏振状态。

4. 发明申请

US20150301384A1 LIQUID CRYSTAL DISPLAY APPARATUS 有权
标题翻译：液晶显示装置
公开(公告)号：US20150301384A1
公开(公告)日：2015-10-22
申请号：US14377050
申请日：2013-02-14
申请人： KEIO UNIVERSITY , NITTO DENKO CORPORATION , DAI NIPPON PRINTING CO., LTD. , NITTO JUSHI KOGYO CO., LTD.
发明人： Yasuhiro Koike , Takehito Fuchida , Shouhei Maezawa , Hiroyuki Takemoto , Nao Murakami , Runa Nakamura , Fumihiro Arakawa , Hiroshi Yamamoto , Tsuyoshi Ishikawa , Eizaburo Higuchi
IPC分类号： G02F1/1335 , G02F1/13363 , F21V8/00 , G02F1/1337
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： A liquid crystal display apparatus comprises: a liquid crystal display panel including a liquid crystal cell between a first polarizing plate and a second polarizing plate; and a surface light source device having a light source unit and a light guide plate. In a polarized light output from the light guide plate, when the normal direction of a light output surface is defined to be at a polar angle of 90°, and the light guiding direction of the light guide plate is defined to be a direction of an azimuth angle of 0°-180°, a ratio La/Lt of integrated intensity La of output light in ranges where the polar angle is 50° to 80° and the azimuth angle is 135° to 225°, 0° to 45°, and 315° to 360° to integrated intensity Lt of total output light is 0.3 or more.
摘要翻译：一种液晶显示装置，包括：液晶显示面板，包括在第一偏振片和第二偏振片之间的液晶单元; 以及具有光源单元和导光板的面光源装置。在从导光板输出的偏振光中，当光输出面的法线方向被定义为90°的极角时，导光板的导光方向被定义为方位角0°-180°，极角为50°〜80°，方位角为135°〜225°，0°〜45°的范围内的输出光的积分强度La的比率La / Lt，并且总共输出光的315°至360°与积分强度Lt为0.3以上。

5. 发明授权

US09217821B2 Light guide plate, surface light source device, and display device 有权
标题翻译：导光板，表面光源装置和显示装置
公开(公告)号：US09217821B2
公开(公告)日：2015-12-22
申请号：US14255042
申请日：2014-04-17
申请人： DAI NIPPON PRINTING CO., LTD.
发明人： Masahiro Goto , Hiroshi Sekiguchi , Hiroshi Yamamoto
IPC分类号： G02F1/025 , G02F1/035 , G02F1/065 , G02F1/095 , G02B6/00 , F21V8/00
CPC分类号： G02B6/0011 , G02B6/0038 , G02B6/0041 , G02B6/0053 , G02B6/0055 , G02B6/0068
摘要： A light guide plate includes a body portion, and a plurality of unit shaped elements defining a light exit surface and arranged on one-side surface of the body portion side by side in an arrangement direction intersecting a light guide direction. Each unit shaped element extends in a direction intersecting the arrangement direction. A light exit surface angle θa, which is the angle of the contour of each unit shaped element with respect to the one-side surface, is more than 10° and not more than 30° in a zone of the contour of each unit shaped element, the width of the zone along the arrangement direction being not less than 35% and not more than 70% of the full width of the unit shaped element.
摘要翻译：导光板包括主体部分和限定出射表面的多个单位形状元件，并且在与导光方向相交的排列方向上并排设置在主体部分的一侧表面上。每个单元形元件在与排列方向相交的方向上延伸。每个单位成形元件相对于单面表面的轮廓角度的光出射面角度a是在每个单元的轮廓区域中大于10°且不超过30° 沿着排列方向的区域的宽度不小于单位形状元件的全宽度的35％且不大于70％。

6. 发明授权

US09869809B2 Backlight unit, liquid-crystal display apparatus, and stacked structure 有权
公开(公告)号：US09869809B2
公开(公告)日：2018-01-16
申请号：US14643271
申请日：2015-03-10
申请人： Dai Nippon Printing Co., Ltd.
发明人： Keiji Kashima , Yasuki Suzuura , Hiroshi Yamamoto , Takashi Kuroda
IPC分类号： G02F1/1335 , F21V8/00
CPC分类号： G02B6/0056 , G02B6/0053 , G02B6/0055
摘要： Sufficiently sharp directivity can be secured with a simple configuration in a configuration that improves the efficiency of utilizing the light exiting from a primary light source using a reflective polarizing plate. A backlight unit (2) supplies light exiting from an exit surface of a light guide plate (12) to a liquid-crystal display panel (3) via a reflective polarizing plate (16) after correcting directivity of the exiting light using a prism sheet (14) having a downwardly convex shape. A ¼-wavelength plate (15) is provided between the prism sheet (14) and the reflective polarizing plate (16), between the prism sheet (14) and the light guide plate, or between the light guide plate and a reflective sheet disposed on a surface of the light guide plate opposite to the prism sheet (14).

7. 发明授权

US09239420B2 Light guide plate, surface source device and transmission-type display device 有权
标题翻译：导光板，表面光源装置和透射型显示装置
公开(公告)号：US09239420B2
公开(公告)日：2016-01-19
申请号：US14339559
申请日：2014-07-24
申请人： DAI NIPPON PRINTING CO., LTD.
发明人： Eiji Asano , Hiroshi Yamamoto , Masahiro Goto
IPC分类号： F21V8/00
CPC分类号： G02B6/0038 , G02B6/0016 , G02B6/002 , G02B6/005 , G02B6/0053 , G02B6/0055 , G02B6/0058
摘要： A light guide plate 13 has a number of back surface-side unit optical structures 131 arranged in a back surface 13d along a light guide direction. Each back surface-side unit optical structure 131 is tapered in a direction away from a light exit surface 13c, and has a first inclined surface 132 lying on the light entrance surface side, a second inclined surface (133) lying opposite the first inclined surface and which totally reflects at least part of incident light, and a top surface region 134 lying between the first inclined surface 132 and the second inclined surface 133, and located farthest from the light exit surface 13c. The top surface regions 134 each include a plurality of surfaces 134a to 134d which are parallel to the light exit surface 13c and have different heights “h” in the direction away from the light exit surface 13c.
摘要翻译：导光板13具有沿导光方向布置在后表面13d中的多个背面侧单元光学结构131。每个背面侧单元光学结构131在远离光出射表面13c的方向上是锥形的，并且具有位于光入射表面侧的第一倾斜表面132，与第一倾斜表面相对的第二倾斜表面并且其完全反射入射光的至少一部分，以及位于第一倾斜表面132和第二倾斜表面133之间并且位于离光出射表面13c最远的顶表面区域134。顶表面区域134各自包括平行于光出射表面13c的多个表面134a至134d，并且在远离光出射表面13c的方向上具有不同的高度“h”。

8. 发明申请

US20150260903A1 BACKLIGHT UNIT, LIQUID-CRYSTAL DISPLAY APPARATUS, AND STACKED STRUCTURE 有权
标题翻译：背光单元，液晶显示装置和堆叠结构
公开(公告)号：US20150260903A1
公开(公告)日：2015-09-17
申请号：US14643271
申请日：2015-03-10
申请人： Dai Nippon Printing Co., Ltd.
发明人： Keiji Kashima , Yasuki Suzuura , Hiroshi Yamamoto , Takashi Kuroda
IPC分类号： F21V8/00 , G02B5/04 , G02F1/1335 , G02B5/30 , G02F1/13363 , G02F1/1337
CPC分类号： G02B6/0056 , G02B6/0053 , G02B6/0055
摘要： Sufficiently sharp directivity can be secured with a simple configuration in a configuration that improves the efficiency of utilizing the light exiting from a primary light source using a reflective polarizing plate. A backlight unit (2) supplies light exiting from an exit surface of a light guide plate (12) to a liquid-crystal display panel (3) via a reflective polarizing plate (16) after correcting directivity of the exiting light using a prism sheet (14) having a downwardly convex shape. A ¼-wavelength plate (15) is provided between the prism sheet (14) and the reflective polarizing plate (16), between the prism sheet (14) and the light guide plate, or between the light guide plate and a reflective sheet disposed on a surface of the light guide plate opposite to the prism sheet (14).
摘要翻译：可以以简单的结构确保足够尖锐的方向性，从而提高使用反射偏振片从初级光源出射的光的效率。背光单元（2）在使用棱镜片校正出射光的方向性之后，经由反射偏振板（16）将从导光板（12）的出射表面射出的光提供给液晶显示面板（3）（14）具有向下凸的形状。在棱镜片（14）和反射偏光板（16）之间，在棱镜片（14）和导光板之间，或者在导光板和设置的反射片之间设置有1/4波片（15）在所述导光板的与所述棱镜片（14）相反的表面上。

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