公开(公告)号：US20090059156A1

公开(公告)日：2009-03-05

申请号：US12192155

申请日：2008-08-15

申请人： Yuka Utsumi ,  Shintaro Takeda ,  Hiroyuki Kagawa ,  Daisuke Kajita ,  Ikuo Hiyama ,  Kikuo Ono

发明人： Yuka Utsumi ,  Shintaro Takeda ,  Hiroyuki Kagawa ,  Daisuke Kajita ,  Ikuo Hiyama ,  Kikuo Ono

IPC分类号： G02F1/13

CPC分类号： G02F1/1396 ,  G02F2001/13706 ,  G02F2203/64

摘要： Disclosed herein is a liquid-crystal display device capable of reducing leakage of light under a black state due to scattering from a liquid-crystal layer, and having high-contrast ratio, excellent image quality performance. The liquid-crystal display device comprises: a liquid-crystal panel including one pair of polarizers disposed on one pair of substrates, a liquid-crystal layer held in sandwiched form between the pair of substrates, and a group of electrodes formed on at least one of the pair of substrates for applying an electric field to the liquid-crystal layer; and a light source unit disposed outside the pair of substrates. The liquid-crystal layer includes a liquid-crystal material having an ordinary-light refractive index of at least 1.46, but up to 1.49, an extraordinary-light refractive index of at least 1.54, but up to 1.59, and a mean photoelastic constant of at least 8, but up to 25, and exhibiting a nematic phase.

摘要翻译： 本发明公开了一种液晶显示装置，其能够减少由于液晶层的散射而在黑色状态下的光的泄漏，并且具有高对比度，优异的图像质量性能。 液晶显示装置包括：液晶面板，包括设置在一对基板上的一对偏振器，在一对基板之间夹持的液晶层和形成在至少一个基板上的一组电极 用于向液晶层施加电场的一对基板; 以及设置在所述一对基板的外侧的光源单元。 液晶层包括普通光折射率至少为1.46但高达1.49的液晶材料，非常光折射率至少为1.54，但高达1.59，平均光弹性常数为 至少8，但高达25，呈现向列相。

公开(公告)号：US20080192182A1

公开(公告)日：2008-08-14

申请号：US12019031

申请日：2008-01-24

申请人： Daisuke Kajita ,  Ikuo Hiyama ,  Shintaro Takeda

发明人： Daisuke Kajita ,  Ikuo Hiyama ,  Shintaro Takeda

IPC分类号： G02F1/13363 ,  G02F1/1335

CPC分类号： G02F1/13363 ,  G02F1/134363 ,  G02F2413/02

摘要： A liquid crystal display device comprises: a first substrate having a first polarization layer on a light incident side; a second substrate having a second polarization layer on a light outgoing side; a liquid crystal layer disposed between the first and the second substrates; a first birefringent film disposed between the first and the second polarization layers; a second birefringent film disposed between the first birefringent film and the second polarization layer; and wherein the liquid crystal layer has a property that a refractive index anisotropy is induced in it by an electric field applied between the pixel electrodes and the common electrode; wherein in-plane retarded phase axes of the first and the second birefringent films form an angle of from 88 degrees to 92 degrees with the first polarization layer; wherein the first birefringent films have Nz coefficients greater than 0.5 and smaller than 0.5, respectively.

摘要翻译： 液晶显示装置包括：第一基板，其具有在光入射侧的第一偏振层; 第二基板，在光出射侧具有第二偏振层; 设置在第一和第二基板之间的液晶层; 设置在第一和第二偏振层之间的第一双折射膜; 设置在所述第一双折射膜和所述第二偏振层之间的第二双折射膜; 并且其中所述液晶层具有通过施加在所述像素电极和所述公共电极之间的电场而在其中感应折射率各向异性的性质; 其中第一和第二双折射膜的面内延迟相位轴与第一偏振层形成88度至92度的角度; 其中第一双折射膜的Nz系数分别大于0.5且小于0.5。

公开(公告)号：US08134664B2

公开(公告)日：2012-03-13

申请号：US12019708

申请日：2008-01-25

申请人： Daisuke Kajita ,  Ikuo Hiyama ,  Shintaro Takeda

发明人： Daisuke Kajita ,  Ikuo Hiyama ,  Shintaro Takeda

IPC分类号： G02F1/1335 ,  G02F1/1343

CPC分类号： G02F1/13363 ,  G02F1/134363 ,  G02F2001/133635 ,  G02F2413/02

摘要： The liquid crystal display device according to this invention comprises: a first substrate having a first polarization layer on a light incident side; a second substrate having a second polarization layer on a light outgoing side; a first birefringent medium disposed between the first polarization layer and the liquid crystal layer; a second birefringent medium disposed between the second polarization layer and the liquid crystal layer; a pixel electrode and a common electrode arranged on one of the first substrate and the second substrate; wherein an absorbing axis of the first polarization layer and an absorbing axis of the second polarization layer form an angle of from 88 degrees to 92 degrees; wherein the liquid crystal layer has a property that an in-plane refractive index anisotropy is induced in the liquid crystal layer by an electric field produced by the pixel electrode and the common electrode.

摘要翻译： 根据本发明的液晶显示装置包括：具有在光入射侧的第一偏振层的第一基板; 第二基板，在光出射侧具有第二偏振层; 布置在所述第一偏振层和所述液晶层之间的第一双折射介质; 布置在所述第二偏振层和所述液晶层之间的第二双折射介质; 设置在第一基板和第二基板之一上的像素电极和公共电极; 其中所述第一偏振层的吸收轴和所述第二偏振层的吸收轴形成88度至92度的角度; 其中液晶层具有通过像素电极和公共电极产生的电场在液晶层中引起面内折射率各向异性的性质。

公开(公告)号：US20080192183A1

公开(公告)日：2008-08-14

申请号：US12019708

申请日：2008-01-25

申请人： Daisuke Kajita ,  Ikuo Hiyama ,  Shintaro Takeda

发明人： Daisuke Kajita ,  Ikuo Hiyama ,  Shintaro Takeda

IPC分类号： G02F1/13363 ,  G02F1/1335

CPC分类号： G02F1/13363 ,  G02F1/134363 ,  G02F2001/133635 ,  G02F2413/02

摘要： The liquid crystal display device according to this invention comprises: a first substrate having a first polarization layer on a light incident side; a second substrate having a second polarization layer on a light outgoing side; a first birefringent medium disposed between the first polarization layer and the liquid crystal layer; a second birefringent medium disposed between the second polarization layer and the liquid crystal layer; a pixel electrode and a common electrode arranged on one of the first substrate and the second substrate; wherein an absorbing axis of the first polarization layer and an absorbing axis of the second polarization layer form an angle of from 88 degrees to 92 degrees; wherein the liquid crystal layer has a property that an in-plane refractive index anisotropy is induced in the liquid crystal layer by an electric field produced by the pixel electrode and the common electrode.

摘要翻译： 根据本发明的液晶显示装置包括：具有在光入射侧的第一偏振层的第一基板; 第二基板，在光出射侧具有第二偏振层; 布置在所述第一偏振层和所述液晶层之间的第一双折射介质; 布置在所述第二偏振层和所述液晶层之间的第二双折射介质; 设置在第一基板和第二基板之一上的像素电极和公共电极; 其中所述第一偏振层的吸收轴和所述第二偏振层的吸收轴形成88度至92度的角度; 其中液晶层具有通过像素电极和公共电极产生的电场在液晶层中引起面内折射率各向异性的性质。

公开(公告)号：US07898638B2

公开(公告)日：2011-03-01

申请号：US12192155

申请日：2008-08-15

申请人： Yuka Utsumi ,  Shintaro Takeda ,  Hiroyuki Kagawa ,  Daisuke Kajita ,  Ikuo Hiyama ,  Kikuo Ono

发明人： Yuka Utsumi ,  Shintaro Takeda ,  Hiroyuki Kagawa ,  Daisuke Kajita ,  Ikuo Hiyama ,  Kikuo Ono

IPC分类号： C09K19/02 ,  H01L51/40

CPC分类号： G02F1/1396 ,  G02F2001/13706 ,  G02F2203/64

摘要： Disclosed herein is a liquid-crystal display device capable of reducing leakage of light under a black state due to scattering from a liquid-crystal layer, and having high-contrast ratio, excellent image quality performance. The liquid-crystal display device comprises: a liquid-crystal panel including one pair of polarizers disposed on one pair of substrates, a liquid-crystal layer held in sandwiched form between the pair of substrates, and a group of electrodes formed on at least one of the pair of substrates for applying an electric field to the liquid-crystal layer; and a light source unit disposed outside the pair of substrates. The liquid-crystal layer includes a liquid-crystal material having an ordinary-light refractive index of at least 1.46, but up to 1.49, an extraordinary-light refractive index of at least 1.54, but up to 1.59, and a mean photoelastic constant of at least 8, but up to 25, and exhibiting a nematic phase.

摘要翻译： 本发明公开了一种液晶显示装置，其能够减少由于液晶层的散射而在黑色状态下的光的泄漏，并且具有高对比度，优异的图像质量性能。 液晶显示装置包括：液晶面板，包括设置在一对基板上的一对偏振器，在一对基板之间夹持的液晶层和形成在至少一个基板上的一组电极 用于向液晶层施加电场的一对基板; 以及设置在所述一对基板的外侧的光源单元。 液晶层包括普通光折射率至少为1.46但高达1.49的液晶材料，非常光折射率至少为1.54，但高达1.59，平均光弹性常数为 至少8，但高达25，呈现向列相。

公开(公告)号：US07817226B2

公开(公告)日：2010-10-19

申请号：US12019031

申请日：2008-01-24

申请人： Daisuke Kajita ,  Ikuo Hiyama ,  Shintaro Takeda

发明人： Daisuke Kajita ,  Ikuo Hiyama ,  Shintaro Takeda

IPC分类号： G02F1/1335 ,  C09K19/02

CPC分类号： G02F1/13363 ,  G02F1/134363 ,  G02F2413/02

摘要： A liquid crystal display device comprises: a first substrate having a first polarization layer on a light incident side; a second substrate having a second polarization layer on a light outgoing side; a liquid crystal layer disposed between the first and the second substrates; a first birefringent film disposed between the first and the second polarization layers; a second birefringent film disposed between the first birefringent film and the second polarization layer; and wherein the liquid crystal layer has a property that a refractive index anisotropy is induced in it by an electric field applied between the pixel electrodes and the common electrode; wherein in-plane retarded phase axes of the first and the second birefringent films form an angle of from 88 degrees to 92 degrees with the first polarization layer; wherein the first birefringent films have Nz coefficients greater than 0.5 and smaller than 0.5, respectively.

摘要翻译： 液晶显示装置包括：第一基板，其具有在光入射侧的第一偏振层; 第二基板，在光出射侧具有第二偏振层; 设置在第一和第二基板之间的液晶层; 设置在第一和第二偏振层之间的第一双折射膜; 设置在所述第一双折射膜和所述第二偏振层之间的第二双折射膜; 并且其中所述液晶层具有通过施加在所述像素电极和所述公共电极之间的电场而在其中感应折射率各向异性的性质; 其中第一和第二双折射膜的面内延迟相位轴与第一偏振层形成88度至92度的角度; 其中第一双折射膜的Nz系数分别大于0.5且小于0.5。

公开(公告)号：US08149354B2

公开(公告)日：2012-04-03

申请号：US12768934

申请日：2010-04-28

申请人： Kentaro Ojima ,  Daisuke Kajita ,  Ikuo Hiyama ,  Masahiro Ishii ,  Yasushi Tomioka

发明人： Kentaro Ojima ,  Daisuke Kajita ,  Ikuo Hiyama ,  Masahiro Ishii ,  Yasushi Tomioka

IPC分类号： G02F1/1335 ,  G02F1/13363

CPC分类号： G02F1/133634 ,  G02F2413/08 ,  G02F2413/11

摘要： Provided is a liquid crystal display device including: a substrate (13) including a polarizing layer (11) on a light-input side; a substrate (14) including a polarizing layer (12) on another side, the polarizing layers having absorption axes substantially perpendicular; a liquid crystal layer (15) in which a liquid-crystal-molecule is aligned to be substantially horizontal to the substrates. In a case where an absorption axis of the polarizing layer (11) and an optical axis of the liquid crystal layer are substantially perpendicular, the optical compensating members (17 and 18) may be provided between the polarizing layer (11) and the liquid crystal layer; the absorption axis of the polarizing layer (11) and a slow axis of the optical compensating members are substantially perpendicular; each pixel satisfies nx≈ny≠nz; thickness-direction retardation for pixels of one color is different from other colors; and the thickness-direction retardation for red pixels is larger than 0 nm.

摘要翻译： 提供一种液晶显示装置，包括：在光输入侧包括偏振层（11）的基板（13） 在另一侧包括偏振层（12）的基板（14），所述偏振层具有大致垂直的吸收轴; 液晶分子被取向为与基板基本水平的液晶层（15）。 在偏光层（11）的吸收轴和液晶层的光轴基本垂直的情况下，光学补偿部件（17,18）可以设置在偏振层（11）和液晶 层; 偏振层（11）的吸收轴和光学补偿部件的慢轴基本垂直; 每个像素满足nx≈ny≠nz; 一种颜色的像素的厚度方向延迟与其他颜色不同; 红色像素的厚度方向延迟大于0nm。

公开(公告)号：US20100271575A1

公开(公告)日：2010-10-28

申请号：US12768934

申请日：2010-04-28

申请人： Kentaro Ojima ,  Daisuke Kajita ,  Ikuo Hiyama ,  Masahiro Ishii ,  Yasushi Tomioka

发明人： Kentaro Ojima ,  Daisuke Kajita ,  Ikuo Hiyama ,  Masahiro Ishii ,  Yasushi Tomioka

IPC分类号： G02F1/1335 ,  G02F1/13363

CPC分类号： G02F1/133634 ,  G02F2413/08 ,  G02F2413/11

摘要： Provided is a liquid crystal display device including: a substrate (13) including a polarizing layer (11) on a light-input side; a substrate (14) including a polarizing layer (12) on another side, the polarizing layers having absorption axes substantially perpendicular; a liquid crystal layer (15) in which a liquid-crystal-molecule is aligned to be substantially horizontal to the substrates. In a case where an absorption axis of the polarizing layer (11) and an optical axis of the liquid crystal layer are substantially perpendicular, the optical compensating members (17 and 18) may be provided between the polarizing layer (11) and the liquid crystal layer; the absorption axis of the polarizing layer (11) and a slow axis of the optical compensating members are substantially perpendicular; each pixel satisfies nx≈ny≠nz; thickness-direction retardation for pixels of one color is different from other colors; and the thickness-direction retardation for red pixels is larger than 0 nm.

摘要翻译： 提供一种液晶显示装置，包括：在光输入侧包括偏振层（11）的基板（13） 在另一侧包括偏振层（12）的基板（14），所述偏振层具有大致垂直的吸收轴; 液晶分子被取向为与基板基本水平的液晶层（15）。 在偏光层（11）的吸收轴和液晶层的光轴基本垂直的情况下，光学补偿部件（17,18）可以设置在偏振层（11）和液晶 层; 偏振层（11）的吸收轴和光学补偿构件的慢轴基本垂直; 每个像素满足nx≈ny≠nz; 一种颜色的像素的厚度方向延迟与其他颜色不同; 红色像素的厚度方向延迟大于0nm。

公开(公告)号：US07292299B2

公开(公告)日：2007-11-06

申请号：US10956254

申请日：2004-09-30

申请人： Ikuo Hiyama ,  Shinichi Komura ,  Tsunenori Yamamoto ,  Yuka Utsumi ,  Mutsumi Maehara ,  Daisuke Kajita

发明人： Ikuo Hiyama ,  Shinichi Komura ,  Tsunenori Yamamoto ,  Yuka Utsumi ,  Mutsumi Maehara ,  Daisuke Kajita

IPC分类号： G02F1/1335

CPC分类号： G02F1/13363 ,  G02F1/133604 ,  G02F1/134363 ,  G02F2001/133635 ,  G02F2413/04 ,  G02F2413/11 ,  G02F2413/13

摘要： In an in-plane switching (ISP) mode controlling transmission and shielding of light by application of lateral electric field to liquid crystal molecules aligned in the direction in parallel to a substrate, increase in luminance or color shift at a black-representation area or upon black-representation condition at an inclined viewing angle is reduced. First and second polarizing plates sandwiching a liquid crystal layer each have a supporting member (plate) on at least either surface thereof. The supporting member on the inside surface of the first polarizing plate on the side of an illumination unit has a retardation in the thickness direction R1·h1 and the supporting member on the inside surface of the second polarizing plate has a retardation in the thickness direction R2·h2. In the O-mode, R1·h1>R2·h2 and in the E-mode, R1·h1

摘要翻译： 在平面切换（ISP）模式下，通过向与基板平行的方向对准的液晶分子施加横向电场来控制光的透射和屏蔽，在黑色表示区域或在黑色表示区域上亮度或颜色偏移增加 在倾斜视角下的黑色表示条件减少。 夹着液晶层的第一和第二偏光板在其至少一个表面上各具有支撑部件（板）。 在照明单元一侧的第一偏振片的内表面上的支撑构件在厚度方向R 1，h 1上具有延迟，第二偏振片的内表面上的支撑构件具有厚度的延迟 方向R 2 .h 2。 在O模式中，R 1 .h 1> R 2 .h 2，在E模式中，R 1 .h 1

公开(公告)号：US20060176424A1

公开(公告)日：2006-08-10

申请号：US11347250

申请日：2006-02-06

申请人： Daisuke Kajita ,  Ikuo Hiyama ,  Masahiro Ishii

发明人： Daisuke Kajita ,  Ikuo Hiyama ,  Masahiro Ishii

IPC分类号： G02F1/1335

CPC分类号： G02F1/13363 ,  G02F1/134363 ,  G02F2001/133531 ,  G02F2001/133565 ,  G02F2413/02

摘要： An IPS-mode liquid-crystal display apparatus for controlling transmission and cutoff of light by applying a cross-directional electric field to liquid-crystal molecules horizontally oriented reduces diagonal luminance rise and coloring at the time of black display by a simple configuration. A configuration is used in which an optical phase compensation member for canceling the double refraction property of a polarization-plate support base material is provided between the liquid-crystal-layer-side support base material of a lower polarizer and a liquid-crystal layer. Or, a configuration is used in which the optical phase compensation for canceling double refraction property of the polarization-plate support base material is provided between the liquid-crystal-layer-side support base material and the liquid-crystal layer.

摘要翻译： 通过向水平方向的液晶分子施加横向电场来控制透射和切断光的IPS模式液晶显示装置通过简单的配置减少黑色显示时的对角线亮度上升和着色。 使用在下偏振片的液晶层侧支撑基材和液晶层之间设置用于抵消偏振板支撑基材的双折射性的光学相位补偿部件的结构。 或者，使用在液晶层侧支撑基材和液晶层之间设置用于消除偏振板支撑基材的双折射性的光学相位补偿的结构。