公开(公告)号：US08179501B2

公开(公告)日：2012-05-15

申请号：US12674799

申请日：2008-08-18

申请人： Yuji Takahashi ,  Satoru Ikeda ,  Tetsuya Uesaka

发明人： Yuji Takahashi ,  Satoru Ikeda ,  Tetsuya Uesaka

IPC分类号： G02F1/1335

CPC分类号： G02B5/305 ,  G02F1/133528 ,  G02F1/13363

摘要： An elliptical polarizer is provided having excellent viewing angle improving effects. The elliptical polarizer includes a polarizer, a first optical anisotropic layer, and a second optical anisotropic layer, laminated in this order. The first optical anisotropic layer satisfies the requirements of 0.8≦NZ1≦1.6 and 120≦Re1≦250 and is disposed so that the slow axis thereof is orthogonal to the absorption axis of the polarizer. The second optical anisotropic layer is a liquid crystal film having a retardation value in the plane of 30 to 150 nm with respect to a 550 nm wavelength light and fixed in a nematic hybrid alignment wherein the average tilt angle of the liquid crystal molecules of a liquid crystalline polymer exhibiting a positive optical uniaxiality, and is disposed so that the aligned direction thereof is parallel to the absorption axis of the first polarizer. The elliptical polarizer is used in a TN type liquid crystal display device so that the second optical anisotropic layer is disposed on the liquid crystal cell side.

摘要翻译： 提供具有优异的视角改善效果的椭圆偏振器。 椭圆偏振器包括依次层叠的偏振器，第一光学各向异性层和第二光学各向异性层。 第一光学各向异性层满足0.8＆lt; NlE; NZ1＆nlE; 1.6和120＆nlE; Re1＆nlE250的要求，并且被设置为使得其慢轴与偏振器的吸收轴正交。 第二光学各向异性层是相对于550nm波长的光具有相对于550nm波长的光的30〜150nm的相位差值的液晶膜，并且以向列混合取向固定，其中液晶的液晶分子的平均倾斜角 表现出正的光学单轴性的结晶聚合物，并且被布置为使得其排列方向平行于第一偏振器的吸收轴。 在TN型液晶显示装置中使用椭圆偏振器，使得第二光学各向异性层设置在液晶单元侧。

公开(公告)号：US08045131B2

公开(公告)日：2011-10-25

申请号：US12514815

申请日：2007-10-30

申请人： Tetsuya Uesaka ,  Satoru Ikeda

发明人： Tetsuya Uesaka ,  Satoru Ikeda

IPC分类号： G02F1/1337

CPC分类号： G02B5/3033 ,  G02F1/13362 ,  G02F1/13363 ,  G02F2001/133633 ,  G02F2001/133738 ,  G02F2202/40 ,  G02F2413/03 ,  G02F2413/08 ,  G02F2413/105

摘要： The present invention provides a transparent liquid crystal display device which is less in display characteristics and viewing angle dependency and can provide bright images and high contrasts. The transparent liquid crystal display device comprises at least: a backlight; a polarizer; a second optical anisotropic layer with a retardation of 50 to 180 nm at a wavelength of 550 nm; a first optical anisotropic layer with a retardation of 20 to 140 nm at a wavelength of 550 nm; a homogeneously aligned liquid crystal cell comprising upper and lower substrates facing each other and a liquid crystal layer sandwiched between the upper and lower substrates; a third optical anisotropic layer with a retardation of 50 to 200 nm at a wavelength of 550 nm; and a polarizer, arranged in piles in this order from the backlight, wherein the first optical anisotropic layer comprising at least a liquid crystal film with a fixed nematic hybrid liquid crystal alignment structure.

摘要翻译： 本发明提供一种透明液晶显示装置，其显示特性和视角依赖性较小，能够提供明亮的图像和高对比度。 透明液晶显示装置至少包括：背光源; 偏振片 在波长550nm下具有50至180nm的延迟的第二光学各向异性层; 第一光学各向异性层，波长为550nm时具有20至140nm的延迟; 均匀取向的液晶单元，其包括彼此面对的上基板和下基板以及夹在上基板和下基板之间的液晶层; 在波长550nm下具有50至200nm的延迟的第三光学各向异性层; 以及偏振器，其从所述背光依次排列成堆叠，其中所述第一光学各向异性层至少包括具有固定向列型混合液晶取向结构的液晶膜。

公开(公告)号：US07826017B2

公开(公告)日：2010-11-02

申请号：US12278683

申请日：2006-11-02

申请人： Tetsuya Uesaka

发明人： Tetsuya Uesaka

IPC分类号： G02F1/1335

CPC分类号： G02B27/281 ,  G02F1/133632 ,  G02F1/133634 ,  G02F1/1393 ,  G02F2413/105

摘要： A transmissive liquid crystal display device comprises at least a backlight, a polarizer, a first optically anisotropic layer with a retardation of 50 to 140 nm at a wavelength of 550 nm, a second optically anisotropic layer with negative retardation, a homogeneously oriented liquid crystal cell comprising upper and lower substrates facing each other and a liquid crystal layer sandwiched between the upper and lower substrates, a third optically anisotropic layer with a retardation of 130 to 210 nm at a wavelength of 550 nm; and a polarizer, arranged in piles in this order from the backlight, the first optically anisotropic layer comprising at least a liquid crystal film with a fixed nematic hybrid liquid crystal orientation structure, and is less in display characteristic variation, bright in display, high in contrast, and less in viewing angle dependence.

摘要翻译： 透射型液晶显示装置至少包括背光源，偏振片，波长为550nm的延迟为50〜140nm的第一光学各向异性层，具有负相位差的第二光学各向异性层，均匀取向的液晶单元 包括彼此面对的上基板和下基板以及夹在上基板和下基板之间的液晶层，在550nm波长处具有130至210nm的延迟的第三光学各向异性层; 和偏振片，从背光依次排列成堆叠状态，第一光学各向异性层至少包括具有固定的向列混合液晶取向结构的液晶膜，显示特性变化小，显示亮度高 对比度和视角依赖性较小。

公开(公告)号：US20090284689A1

公开(公告)日：2009-11-19

申请号：US12094404

申请日：2007-02-27

申请人： Satoru Ikeda ,  Tetsuya Uesaka

发明人： Satoru Ikeda ,  Tetsuya Uesaka

IPC分类号： G02F1/1347

CPC分类号： G02F1/133632 ,  G02F2001/1398 ,  G02F2413/02 ,  G02F2413/07 ,  G02F2413/105

摘要： The present invention provides a transmissive liquid crystal display device which is less in variation in displaying characteristics, bright in displaying image, high in contrast and less in viewing angle dependency. The liquid crystal display comprises at least a specific first optically anisotropic layer with a fixed nematic hybrid orientation structure and a specific second optically anisotropic layer.

摘要翻译： 本发明提供一种透射型液晶显示装置，其显示特性的变化较小，显示图像明亮，对比度高，视角依赖性较小。 液晶显示器至少包括具有固定的向列混合取向结构和特定的第二光学各向异性层的特定的第一光学各向异性层。

公开(公告)号：US07019804B2

公开(公告)日：2006-03-28

申请号：US10490709

申请日：2002-09-06

申请人： Yoshihiro Kumagai ,  Akira Masaki ,  Tetsuya Uesaka

发明人： Yoshihiro Kumagai ,  Akira Masaki ,  Tetsuya Uesaka

IPC分类号： G02F1/1335

CPC分类号： G02F1/1397 ,  G02F1/133636 ,  G02F2202/40

摘要： A liquid crystal display device has a liquid crystal cell, a liquid crystalline substance layer, a pair of polarizers, and an optical compensation element. The twist angle of the liquid crystal cell is set to 180 to 270 degrees. The optical compensation element has a twisted structure twisted in the opposite direction to that of the liquid crystal cell. The difference in the absolute values of the twist angles between the liquid crystal cell and the optical compensation element is from 40 to 100 degrees. The difference in retardation at a wavelength λ=550 nm between the liquid crystal cell and the optical compensation element is from 100 to 250 nm. When the absolute values of the differences in retardation at wavelengths λ of 400 nm and 550 nm between the liquid crystal cell and the optical compensation element are represented by ΔR(400) and ΔR(550), respectively, and the ratio D therebetween is represented by D=ΔR(400)/ΔR(550), D is within the range of 0.5 to 1.0.

摘要翻译： 液晶显示装置具有液晶单元，液晶物质层，一对偏振器和光学补偿元件。 液晶单元的扭转角度设定为180〜270度。 光学补偿元件具有与液晶单元相反方向扭转的扭曲结构。 液晶单元和光学补偿元件之间的扭转角的绝对值的差为40〜100度。 在液晶单元和光学补偿元件之间的波长λ= 550nm处的延迟差为100〜250nm。 当分别用DeltaR（400）和DeltaR（550）表示液晶单元和光学补偿元件之间在400nm和550nm波长λ处的延迟差的绝对值，并且其间的比率D被表示 通过D = DeltaR（400）/ DeltaR（550），D在0.5至1.0的范围内。

公开(公告)号：US08134659B2

公开(公告)日：2012-03-13

申请号：US12994190

申请日：2009-04-20

申请人： Yuji Takahashi ,  Tetsuya Uesaka ,  Satoru Ikeda

发明人： Yuji Takahashi ,  Tetsuya Uesaka ,  Satoru Ikeda

IPC分类号： G02F1/1335 ,  G02B5/30

CPC分类号： G02F1/133634 ,  G02B5/3016 ,  G02B5/305 ,  G02F2001/133637 ,  G02F2413/04 ,  G02F2413/08 ,  G02F2413/12

摘要： The present invention provides an elliptical polarizer with excellent viewing angle characteristics. The elliptical polarizer comprises at least a first polarizer, a first optically anisotropic layer, a second optically anisotropic layer, and a third optically anisotropic layer, laminated in this order, the first optically anisotropic layer satisfying [1] 50≦Re1≦500, [2] 30≦Rth1≦750, and [3] 0.6≦Rth1/Re1≦1.5, the second optically anisotropic layer satisfying [4] 0≦Re2≦20 and [5] −500≦Rth2≦−30, and the third optically anisotropic layer satisfying [6] 100≦Re3≦180, [7] 50≦Rth3≦600, and [8] 0.5≦Rth3/Re3≦3.5, wherein Re indicates the retardation value in the plane of each optically anisotropic layer and Rth indicates the retardation value in the thickness direction of each optically anisotropic layer.

摘要翻译： 本发明提供一种具有优异的视角特性的椭圆偏振片。 所述椭圆偏振器至少包括第一光学各向异性层，第二光学各向异性层和第三光学各向异性层，所述第一光学各向异性层依次层叠，所述第一光学各向异性层满足[1] 50＆nlE; Re1＆nlE; 500， 2] 30＆nlE; Rth1＆nlE; 750和[3] 0.6＆nlE; Rth1 / Re1＆nlE; 1.5，满足[4] 0＆nlE;第二光学各向异性层; Re2＆nlE; 20和[5] -500和nlE; Rth2＆ 光学各向异性层满足[6] 100＆nlE; Re3＆nlE; 180，[7] 50＆nlE; Rth3＆nlE; 600和[8] 0.5＆nlE; Rth3 / Re3＆nlE; 3.5，其中Re表示每个光学各向异性层的平面中的延迟值， Rth表示各光学各向异性层的厚度方向的延迟值。

公开(公告)号：US07911570B2

公开(公告)日：2011-03-22

申请号：US12094295

申请日：2006-11-02

申请人： Tetsuya Uesaka ,  Satoru Ikeda

发明人： Tetsuya Uesaka ,  Satoru Ikeda

IPC分类号： G02F1/1335 ,  G02F1/1347

CPC分类号： G02F1/133632 ,  G02F1/133528 ,  G02F1/133634 ,  G02F2413/105

摘要： The present invention provides a liquid crystal display device comprising at least: a backlight; a polarizer; a first optically anisotropic layer with a retardation of 210 to 300 nm at a wavelength of 550 nm; a second optically anisotropic layer with a retardation of 50 to 140 nm at a wavelength of 550 nm; a third optically anisotropic layer with negative optical anisotropy; a liquid crystal cell comprising upper and lower substrates facing each other and a liquid crystal layer sandwiched between the upper and lower substrates; a fourth optically anisotropic layer with a retardation of 50 to 140 nm at a wavelength of 550 nm; a first optically anisotropic layer with a retardation of 210 to 300 nm at a wavelength of 550 nm; and a polarizer, arranged in piles in this order from the backlight, the second optically anisotropic layer comprising at least a liquid crystal film with a fixed nematic hybrid liquid crystal orientation structure. The liquid crystal display device provides bright images and is high in contrast and less in viewing angle dependency.

摘要翻译： 本发明提供一种至少包括：背光源的液晶显示装置; 偏振片 第一光学各向异性层，波长为550nm时具有210至300nm的延迟; 第二光学各向异性层，波长为550nm时具有50-140nm的延迟; 具有负光学各向异性的第三光学各向异性层; 液晶单元包括彼此面对的上基板和下基板以及夹在上基板和下基板之间的液晶层; 第五光学各向异性层，波长为550nm时具有50-140nm的延迟; 第一光学各向异性层，波长为550nm时具有210至300nm的延迟; 以及偏振器，从背光依次排列成堆叠状态，第二光学各向异性层至少包括具有固定的向列型混合液晶取向结构的液晶膜。 液晶显示装置提供明亮的图像，对比度高，视角依赖性较小。

公开(公告)号：US20100171916A1

公开(公告)日：2010-07-08

申请号：US12726546

申请日：2010-03-18

申请人： Hitoshi MAZAKI ,  Takashi SEKI ,  Takuya MATSUMOTO ,  Tetsuya UESAKA ,  Akio MUTOU

发明人： Hitoshi MAZAKI ,  Takashi SEKI ,  Takuya MATSUMOTO ,  Tetsuya UESAKA ,  Akio MUTOU

IPC分类号： G02F1/1337 ,  C09K19/56 ,  B32B38/10 ,  B32B37/12

CPC分类号： G02F1/133634 ,  C09K2019/3416 ,  G02B5/3016 ,  G02B5/3083 ,  G02F1/1393 ,  G02F2203/64 ,  Y10T156/10 ,  Y10T428/1005 ,  Y10T428/1036

摘要： A homeotropic alignment liquid crystal film is provided with a liquid crystalline substance containing a side chain liquid crystalline compound having an oxetanyl group, as a constituent, aligned homeotropically on an alignment substrate while being in a liquid crystal state and fixed in the homeotropic alignment by allowing the oxetanyl group to react. Thus, the homeotropic alignment liquid crystal film can be stably produced without necessitating a complicated step such as light irradiation under an inert gas atmosphere and is excellent in alignment retainability after being fixed in the homeotropic alignment and in mechanical strength.

摘要翻译： 垂直取向液晶膜设置有液晶物质，其含有具有氧杂环丁烷基的侧链液晶化合物作为构成，其在取向基板上呈垂直取向并处于液晶状态，并通过允许以垂直取向方式固定 氧杂环丁烷基反应。 因此，可以稳定地制造垂直取向液晶膜，而不需要在惰性气体气氛下的光照射等复杂的步骤，并且在垂直取向和机械强度固定后的取向保持性优异。

公开(公告)号：US20100085522A1

公开(公告)日：2010-04-08

申请号：US12514815

申请日：2007-10-30

申请人： Tetsuya Uesaka ,  Satoru Ikeda

发明人： Tetsuya Uesaka ,  Satoru Ikeda

IPC分类号： G02F1/13363

CPC分类号： G02B5/3033 ,  G02F1/13362 ,  G02F1/13363 ,  G02F2001/133633 ,  G02F2001/133738 ,  G02F2202/40 ,  G02F2413/03 ,  G02F2413/08 ,  G02F2413/105

摘要： The present invention provides a transparent liquid crystal display device which is less in display characteristics and viewing angle dependency and can provide bright images and high contrasts. The transparent liquid crystal display device comprises at least: a backlight; a polarizer; a second optical anisotropic layer with a retardation of 50 to 180 nm at a wavelength of 550 nm; a first optical anisotropic layer with a retardation of 20 to 140 nm at a wavelength of 550 nm; a homogeneously aligned liquid crystal cell comprising upper and lower substrates facing each other and a liquid crystal layer sandwiched between the upper and lower substrates; a third optical anisotropic layer with a retardation of 50 to 200 nm at a wavelength of 550 nm; and a polarizer, arranged in piles in this order from the backlight, wherein the first optical anisotropic layer comprising at least a liquid crystal film with a fixed nematic hybrid liquid crystal alignment structure.

摘要翻译： 本发明提供一种透明液晶显示装置，其显示特性和视角依赖性较小，能够提供明亮的图像和高对比度。 透明液晶显示装置至少包括：背光源; 偏振片 在波长550nm下具有50至180nm的延迟的第二光学各向异性层; 第一光学各向异性层，波长为550nm时具有20至140nm的延迟; 均匀取向的液晶单元，其包括彼此面对的上基板和下基板以及夹在上基板和下基板之间的液晶层; 在波长550nm下具有50至200nm的延迟的第三光学各向异性层; 以及偏振器，其从所述背光依次排列成堆叠，其中所述第一光学各向异性层至少包括具有固定向列型混合液晶取向结构的液晶膜。

公开(公告)号：US20080106675A1

公开(公告)日：2008-05-08

申请号：US11956678

申请日：2007-12-14

申请人： Tetsuya UESAKA ,  Suzushi NISHIMURA

发明人： Tetsuya UESAKA ,  Suzushi NISHIMURA

IPC分类号： G02B5/30 ,  G02F1/13363

CPC分类号： G02B27/286 ,  G02B5/3016 ,  G02B6/0056 ,  G02F1/133528 ,  G02F1/13363 ,  G02F2001/133541 ,  H01L51/5293

摘要： A circular polarizer includes at least an optically anisotropic element, a transmissive protection film and a polarizing element sandwiched therebetween. The optically anisotropic element has a liquid crystal layer aligned on a cellulose triacetate film and a retardation of approximately ¼ wavelength in the visible light region. The liquid crystal layer includes a liquid crystal film with a fixed twisted nematic alignment. The circular polarizer is suppressed in thickness by simplifying the layer structure without causing defects, such as peeling off the layers, even under elevated temperature and humidity condition and makes it possible to set arbitrarily the angle of the alignment axis direction of the optically anisotropic element including a liquid crystal layer with a fixed twisted alignment with respect to the absorption axis of the polarizing element, so that the optically anisotropic element and polarizing element both in the form of an elongate film can be laminated continuously to one another.

摘要翻译： 圆偏振器至少包括光学各向异性元件，透射保护膜和夹在其间的偏振元件。 光学各向异性元件具有在三乙酸纤维素膜上排列的液晶层和在可见光区域中约1/4波长的延迟。 液晶层包括具有固定扭曲向列对准的液晶膜。 即使在升高的温度和湿度条件下，通过简化层结构也不会引起诸如剥离层之类的缺陷，可以抑制圆偏振片的厚度，并且可以任意地设置包括光学各向异性元件的取向轴方向的角度，包括 相对于偏振元件的吸收轴具有固定的扭曲对准的液晶层，使得长形膜的形状的光学各向异性元件和偏振元件可以彼此连续地层叠。