公开(公告)号：US08531765B2

公开(公告)日：2013-09-10

申请号：US13129535

申请日：2009-08-05

申请人： Akira Sakai ,  Kazuyoshi Sakuragi

发明人： Akira Sakai ,  Kazuyoshi Sakuragi

IPC分类号： G02B5/30

CPC分类号： G02B5/3083 ,  G02F1/133502 ,  G02F1/13363 ,  G02F2001/133562 ,  G02F2001/133635 ,  G02F2001/133638 ,  G02F2413/04 ,  G02F2413/08

摘要： The present invention provides at low cost a display device with superior visibility and high contrast ratio even in a bright room environment through a reduction in the undesired reflection, not only of the incident outside light from the normal direction, but also of the outside incident light from an oblique direction. The present invention is a circularly polarizing plate including a polarizer and a λ/4 plate, and the aforementioned circularly polarizing plate includes an anti-reflective layer, the aforementioned polarizer, a birefringent layer, and the aforementioned λ/4 plate which are laminated in this order, the NZ coefficient of the aforementioned birefringent layer satisfies NZ 0.9, and the in-plane slow axis of the aforementioned λ/4 plate intersects the absorption axis of the aforementioned polarizer.

摘要翻译： 本发明以低成本提供即使在明亮的房间环境中也能够通过减少不正常反射而具有优异的可视性和高对比度的显示装置，而不仅仅是从正常方向入射的外部光，而且外部的入射光 从斜方向。 本发明是一种包括偏振片和λ/ 4板的圆偏振片，上述圆偏振片包括抗反射层，上述偏振片，双折射层和上述λ/ 4板， 该顺序，上述双折射层的NZ系数满足NZ <0.1，上述双折射层的面内快轴与上述偏振片的吸收轴正交，上述λ/ 4板的NZ系数满足NZ > 0.9，并且上述λ/ 4板的面内慢轴与上述偏振片的吸收轴相交。

公开(公告)号：US20110222155A1

公开(公告)日：2011-09-15

申请号：US13129535

申请日：2009-08-05

申请人： Akira Sakai ,  Kazuyoshi Sakuragi

发明人： Akira Sakai ,  Kazuyoshi Sakuragi

IPC分类号： G02B27/28

CPC分类号： G02B5/3083 ,  G02F1/133502 ,  G02F1/13363 ,  G02F2001/133562 ,  G02F2001/133635 ,  G02F2001/133638 ,  G02F2413/04 ,  G02F2413/08

摘要： The present invention provides at low cost a display device with superior visibility and high contrast ratio even in a bright room environment through a reduction in the undesired reflection, not only of the incident outside light from the normal direction, but also of the outside incident light from an oblique direction. The present invention is a circularly polarizing plate including a polarizer and a λ/4 plate, and the aforementioned circularly polarizing plate includes an anti-reflective layer, the aforementioned polarizer, a birefringent layer, and the aforementioned λ/4 plate which are laminated in this order, the NZ coefficient of the aforementioned birefringent layer satisfies NZ 0.9, and the in-plane slow axis of the aforementioned λ/4 plate intersects the absorption axis of the aforementioned polarizer.

摘要翻译： 本发明以低成本提供即使在明亮的房间环境中也能够通过减少不正常反射而具有优异的可视性和高对比度的显示装置，而不仅仅是从正常方向入射的外部光，而且外部的入射光 从斜方向。 本发明是一种包括偏振片和λ/ 4板的圆偏振片，上述圆偏振片包括抗反射层，上述偏振片，双折射层和上述λ/ 4板，它们层叠在 该顺序，上述双折射层的NZ系数满足NZ <0.1，上述双折射层的面内快轴与上述偏振片的吸收轴正交，上述λ/ 4板的NZ系数满足NZ > 0.9，并且上述λ/ 4板的面内慢轴与上述偏振片的吸收轴相交。

公开(公告)号：US20100289988A1

公开(公告)日：2010-11-18

申请号：US12863854

申请日：2008-11-28

申请人： Akira Sakai ,  Kazuyoshi Sakuragi

发明人： Akira Sakai ,  Kazuyoshi Sakuragi

IPC分类号： G02F1/1335

CPC分类号： G02F1/13363 ,  G02B5/3083 ,  G02B27/28 ,  G02F1/133528 ,  G02F2001/133638 ,  G02F2413/04 ,  G02F2413/06 ,  G02F2413/08

摘要： The present invention provides an LCD device that has a higher contrast ratio in a wide viewing angle and that can be easily produced at low cost. The present invention is a liquid crystal display device, including in the following order: a first polarizer; a first birefringent layer; a first quarter-wave plate; a liquid crystal cell; a second quarter-wave plate; a second birefringent layer; and a second polarizer having an absorption axis orthogonal to an absorption axis of the first polarizer, wherein the first birefringent layer satisfies Nz>0.9 and has an in-plane slow axis orthogonal to the absorption axis of the first polarizer; the first quarter-wave plate has an in-plane slow axis forming an angle of about 45° with the absorption axis of the first polarizer; the liquid crystal cell displays a black screen by aligning liquid crystal molecules in the liquid crystal cell vertically to a substrate surface; the second quarter-wave plate has an in-plane slow axis orthogonal to the in-plane slow axis of the first quarter-wave plate; and the second birefringent layer satisfies Nz

摘要翻译： 本发明提供了一种在宽视角下具有较高对比度并且可以容易地以低成本生产的LCD装置。 本发明是一种液晶显示装置，包括以下顺序：第一偏振片; 第一双折射层; 第一个四分之一波片; 液晶单元; 第二个四分之一波片; 第二双折射层; 以及具有与所述第一偏振片的吸收轴正交的吸收轴的第二偏振片，其中，所述第一双折射层满足Nz> 0.9，并且具有与所述第一偏振片的吸收轴正交的面内慢轴; 第一四分之一波片具有与第一偏振器的吸收轴成45°角的平面内慢轴; 液晶单元通过将液晶单元中的液晶分子垂直于衬底表面来显示黑色屏幕; 第二四分之一波片具有与第一四分之一波片的平面内慢轴正交的平面内慢轴; 并且第二双折射层满足Nz <0.1并且具有平行于第二偏振器的吸收轴的平面内的慢轴。

公开(公告)号：US08619205B2

公开(公告)日：2013-12-31

申请号：US13503493

申请日：2010-07-06

申请人： Akira Sakai ,  Kazuyoshi Sakuragi ,  Masahiro Hasegawa

发明人： Akira Sakai ,  Kazuyoshi Sakuragi ,  Masahiro Hasegawa

IPC分类号： G02F1/1335

CPC分类号： G02B27/26 ,  G02B27/2264 ,  G02F2001/133638 ,  H04N13/341 ,  H04N2213/008

摘要： A three-dimensional video recognition system comprises a display device, a front plate, and AS glasses. Each of the AS glasses includes a first λ/4 plate, a first linear polarizing element, a liquid crystal cell, and a second linear polarizing element in this order from the outer surface side. The display device includes a third linear polarizing element on an observation surface side of the display device. The front plate has a second λ/4 plate. Specific angles formed between a transmission axis of polarizing elements and λ/4 plates are provided.

摘要翻译： 三维视频识别系统包括显示装置，前板和AS眼镜。 每个AS眼镜从外表面侧依次包括第一λ/ 4板，第一线性偏振元件，液晶单元和第二线性偏振元件。 显示装置包括在显示装置的观察面侧的第三直线偏振元件。 前板具有第二个λ/ 4板。 提供了在偏振元件的透射轴和λ/ 4板之间形成的特定角度。

公开(公告)号：US20130076997A1

公开(公告)日：2013-03-28

申请号：US13583090

申请日：2010-11-10

申请人： Akira Sakai ,  Kazuyoshi Sakuragi ,  Masahiro Hasegawa

发明人： Akira Sakai ,  Kazuyoshi Sakuragi ,  Masahiro Hasegawa

IPC分类号： G02F1/1335 ,  G02B27/26

CPC分类号： G02B27/26 ,  G02B27/2264 ,  H04N13/337 ,  H04N13/341 ,  H04N2213/008

摘要： The present invention provides active shutter glasses, passive glasses, and a stereoscopic image projection system, with which a viewer wearing polarizing sunglasses can enjoy improved visibility. The active shutter glasses comprises: a shutter for a right eye; and a shutter for a left eye, wherein the shutters for a right eye and for a left eye each have a liquid crystal cell and a linearly polarizing element, the linearly polarizing element is provided in each shutter on an inner side than the liquid crystal cell is, the linearly polarizing element has a transmission axis direction set in the vertical direction when the glasses are worn.

摘要翻译： 本发明提供主动快门眼镜，被动眼镜和立体图像投影系统，佩戴偏光太阳镜的观看者可以利用该立体图像投影系统享受提高的可见度。 主动快门眼镜包括：用于右眼的快门; 以及用于左眼的快门，其中用于右眼和左眼的快门每个都具有液晶单元和线性偏振元件，线性偏振元件设置在比液晶单元内侧的每个快门中 线性偏振元件在戴眼镜时具有沿垂直方向设定的透射轴方向。

公开(公告)号：US20120206665A1

公开(公告)日：2012-08-16

申请号：US13503493

申请日：2010-07-06

申请人： Akira Sakai ,  Kazuyoshi Sakuragi ,  Masahiro Hasegawa

发明人： Akira Sakai ,  Kazuyoshi Sakuragi ,  Masahiro Hasegawa

IPC分类号： G02F1/1335

CPC分类号： G02B27/26 ,  G02B27/2264 ,  G02F2001/133638 ,  H04N13/341 ,  H04N2213/008

摘要： The present invention is to provide a three-dimensional video recognition system, a video display device, and active shutter glasses (AS) in which, even when the observer's visual point and the inclination of the observer's face are changed, the reduction in the brightness of the screen can be suppressed, and in which a sufficient shutter effect can be obtained. The present invention provides a three-dimensional video recognition system that is featured by including a display device, a front plate, and AS glasses, and is featured in that each of the AS glasses includes a first λ/4 plate, a first linear polarizing element, a liquid crystal cell, and a second linear polarizing element in this order from the outer surface side, in that the display device includes a third linear polarizing element on an observation surface side of the display device, in that the front plate has a second λ/4 plate, and in that, when an angle formed between a transmission axis of the first linear polarizing element and an in-plane slow axis of the first λ/4 plate is defined as φ1, and when an angle formed between a transmission axis of the third linear polarizing element and an in-plane slow axis of the second λ/4 plate is defined as φ2, expressions of 40°≦φ1≦50° and of 40°≦φ2≦50°, or expressions of 130°≦φ1≦140° and of 130°≦φ2≦140° are satisfied, where φ1 and φ2 are measured as viewed from the side of the λ/4 plate and are measured in the counterclockwise direction taken as the positive direction with reference to the transmission axis of the linear polarizing element.

摘要翻译： 本发明提供一种三维视频识别系统，视频显示装置和主动快门眼镜（AS），其中即使当观察者的视点和观察者的脸部的倾斜度改变时，亮度的降低 可以抑制屏幕，并且可以获得足够的快门效果。 本发明提供了一种三维视频识别系统，其特征在于包括显示装置，前板和AS眼镜，其特征在于每个AS眼镜包括第一λ/ 4板，第一线性偏振 元件，液晶单元和第二线性偏振元件，其显示装置包括在显示装置的观察表面侧上的第三线性偏振元件，其中前板具有 第二λ/ 4板，并且当第一线性偏振元件的透射轴与第一λ/ 4板的面内慢轴之间形成的角度被定义为＆lt; 1，并且当形成角度 在第三线性偏振元件的透射轴与第二λ/ 4板的平面内慢轴之间，定义为＆lt; 2，40°＆nlE;＆phgr; 1＆nlE; 50°和40°＆amp; ; 2＆nlE; 50°，或表达130°＆nlE;＆phgr; 1＆nlE; 1 40°和130°＆nlE;＆amp; 2＆nlE; 140°，其中＆phgr。1和＆phgr。2从λ/ 4板的侧面观察，并以逆时针方向测量为正方向 参照线偏振元件的透射轴。

公开(公告)号：US09019451B2

公开(公告)日：2015-04-28

申请号：US13499999

申请日：2010-05-20

申请人： Akira Sakai ,  Kazuyoshi Sakuragi ,  Masahiro Hasegawa

发明人： Akira Sakai ,  Kazuyoshi Sakuragi ,  Masahiro Hasegawa

IPC分类号： G02F1/1335 ,  G02F1/13363 ,  G02F1/1333 ,  G02F1/139 ,  G02F1/1337

CPC分类号： G02F1/133371 ,  G02B1/118 ,  G02F1/133502 ,  G02F1/133514 ,  G02F1/13363 ,  G02F1/133634 ,  G02F1/1393 ,  G02F2001/133541 ,  G02F2001/133637 ,  G02F2001/133638 ,  G02F2001/133742 ,  G02F2202/40 ,  G02F2203/04 ,  G02F2203/64 ,  G02F2413/03 ,  G02F2413/04 ,  G02F2413/06 ,  G02F2413/11 ,  G02F2413/12 ,  G02F2413/13 ,  G02F2413/14

摘要： A liquid crystal display (LCD) device includes a birefringent layer that satisfies the relationship nx>ny≧nz and may be considered a first-class birefringent layer, a birefringent layer that satisfies the relationship nx

摘要翻译： 液晶显示（LCD）装置包括满足nx>ny≥nz的关系的双折射层，并且可以被认为是一级双折射层，满足关系nx

公开(公告)号：US08174650B2

公开(公告)日：2012-05-08

申请号：US12863854

申请日：2008-11-28

申请人： Akira Sakai ,  Kazuyoshi Sakuragi

发明人： Akira Sakai ,  Kazuyoshi Sakuragi

IPC分类号： G02F1/1335

CPC分类号： G02F1/13363 ,  G02B5/3083 ,  G02B27/28 ,  G02F1/133528 ,  G02F2001/133638 ,  G02F2413/04 ,  G02F2413/06 ,  G02F2413/08

摘要： The present invention provides an LCD device that has a higher contrast ratio in a wide viewing angle and that can be easily produced at low cost. The present invention is a liquid crystal display device, including in the following order: a first polarizer; a first birefringent layer; a first quarter-wave plate; a liquid crystal cell; a second quarter-wave plate; a second birefringent layer; and a second polarizer having an absorption axis orthogonal to an absorption axis of the first polarizer, wherein the first birefringent layer satisfies Nz>0.9 and has an in-plane slow axis orthogonal to the absorption axis of the first polarizer; the first quarter-wave plate has an in-plane slow axis forming an angle of about 45° with the absorption axis of the first polarizer; the liquid crystal cell displays a black screen by aligning liquid crystal molecules in the liquid crystal cell vertically to a substrate surface; the second quarter-wave plate has an in-plane slow axis orthogonal to the in-plane slow axis of the first quarter-wave plate; and the second birefringent layer satisfies Nz

摘要翻译： 本发明提供了一种在宽视角下具有较高对比度并且可以容易地以低成本生产的LCD装置。 本发明是一种液晶显示装置，包括以下顺序：第一偏振片; 第一双折射层; 第一个四分之一波片; 液晶单元; 第二个四分之一波片; 第二双折射层; 以及具有与所述第一偏振片的吸收轴正交的吸收轴的第二偏振片，其中，所述第一双折射层满足Nz> 0.9，并且具有与所述第一偏振片的吸收轴正交的面内慢轴; 第一四分之一波片具有与第一偏振器的吸收轴成45°角的平面内慢轴; 液晶单元通过将液晶单元中的液晶分子垂直于衬底表面来显示黑色屏幕; 第二四分之一波片具有与第一四分之一波片的平面内慢轴正交的平面内慢轴; 并且第二双折射层满足Nz <0.1并且具有平行于第二偏振器的吸收轴的平面内的慢轴。

公开(公告)号：US20120200811A1

公开(公告)日：2012-08-09

申请号：US13499999

申请日：2010-05-20

申请人： Akira Sakai ,  Kazuyoshi Sakuragi ,  Masahiro Hasegawa

发明人： Akira Sakai ,  Kazuyoshi Sakuragi ,  Masahiro Hasegawa

IPC分类号： G02F1/13363

CPC分类号： G02F1/133371 ,  G02B1/118 ,  G02F1/133502 ,  G02F1/133514 ,  G02F1/13363 ,  G02F1/133634 ,  G02F1/1393 ,  G02F2001/133541 ,  G02F2001/133637 ,  G02F2001/133638 ,  G02F2001/133742 ,  G02F2202/40 ,  G02F2203/04 ,  G02F2203/64 ,  G02F2413/03 ,  G02F2413/04 ,  G02F2413/06 ,  G02F2413/11 ,  G02F2413/12 ,  G02F2413/13 ,  G02F2413/14

摘要： The present invention provides a liquid-crystal display device that can achieve high contrast ratios in a wide range of viewing angles and reduce coloration during black display. The liquid-crystal display device according to the present invention includes a polarizer, a first quarter-wave plate adapted to satisfy nx>ny≧nz, a vertically aligned liquid crystal cell, a second quarter-wave plate provided with substantially the same Nz factor as the first quarter-wave plate and adapted to satisfy nx>ny≧nz, a birefringent layer adapted to satisfy nx Δn(B)/Δn(G) R(R)/R(G)

摘要翻译： 本发明提供了一种液晶显示装置，其可以在宽范围的视角下实现高对比度并且在黑色显示期间减少着色。 根据本发明的液晶显示装置包括偏振器，适于满足nx>ny≥nz的第一四分之一波片，垂直排列的液晶单元，具有基本上相同的Nz因子的第二四分之一波片 作为第一四分之一波片，适于满足nx>ny≥nz的双折射层，适于满足nx ＆D​​gr; n（B）/＆Dgr; n（G）R（R）/ R（G）<＆Dgr; n（R）/＆Dgr; n（G）其中R（B），R（G）和R（R）表示液晶单元在450nm波长下的垂直相位差 nm和650nm，＆Dgr; n（B），＆Dgr; n（G）和＆Dgr; n（R）表示在450nm波长的液晶层的液晶材料的双折射值 nm和650nm， 积极地

公开(公告)号：US20110090433A1

公开(公告)日：2011-04-21

申请号：US12999136

申请日：2009-04-07

申请人： Kazuyoshi Sakuragi ,  Nobuaki Yamada ,  Kazuhiko Tsuda ,  Akira Sakai

发明人： Kazuyoshi Sakuragi ,  Nobuaki Yamada ,  Kazuhiko Tsuda ,  Akira Sakai

IPC分类号： G02F1/1335

CPC分类号： G02F1/1396 ,  G02F2001/133531 ,  G02F2001/1398 ,  G02F2413/12

摘要： A TN liquid crystal display device (1) includes a polarizing plate (4a), a liquid crystal panel (100), and a polarizing plate (4b) in an order from a viewer side, in which absorption axes (4α and 4β) of the polarizing plates (4a and 4b) are set to be at an angle of approximately 45 degrees to respective rubbing directions (6a and 6b) of a first substrate (2a) and a second substrate (2b), and the absorption axes (4α and 4β) are arranged so as to be perpendicular to each other. Further, for example, a biaxial phase plate (5a) is provided at least between the substrate (2a) and the polarizing plate (4a) so that an in-plane slow axis (5α) is set to be at an angle of approximately 90 degrees to the absorption axis (4α) of the polarizing plate (4a). This configuration makes it possible to realize, at a low cost, a technique to concurrently improve (i) a viewing angle display characteristic and (ii) use efficiency of material members of the TN display liquid crystal display device.

摘要翻译： TN液晶显示装置（1）包括偏振片（4a），液晶面板（100）和偏振片（4b），其中吸收轴（4α和4＆bgr） 的偏振片（4a和4b）设定成与第一基板（2a）和第二基板（2b）的各摩擦方向（6a和6b）大约45度的角度，吸收轴（4α 和4＆amp; bgr）布置成彼此垂直。 此外，例如，至少在基板（2a）和偏振片（4a）之间设置双轴相板（5a），使得面内慢轴（5α）设定为约90°的角度 相对于偏振板（4a）的吸收轴（4α）。 通过这种结构，能够以低成本实现同时提高（i）视野显示特性和（ii）TN显示用液晶显示装置的材料构件的使用效率的技术。