公开(公告)号：US20060170848A1

公开(公告)日：2006-08-03

申请号：US10560393

申请日：2005-03-30

申请人： Masayuki Kawai ,  Shuuji Yano ,  Seiji Umemoto

发明人： Masayuki Kawai ,  Shuuji Yano ,  Seiji Umemoto

IPC分类号： G02F1/1335 ,  G02F1/1343

CPC分类号： G02F1/133634 ,  G02B5/3016 ,  G02F1/134363 ,  G02F2001/133562 ,  G02F2001/133567

摘要： A liquid crystal display of the invention comprises an in-plane switching liquid crystal panel containing a liquid crystal layer whose alignment orientation changes according to an electric field in parallel with a surface of a substrate; a first polarizing plate and a second polarizing plate disposed sandwiching the liquid crystal panel therebetween; a first optical film inserted between the first polarizing plate and the liquid crystal panel; and a second optical film inserted between the second polarizing plate and the liquid crystal panel, wherein the first optical film includes: a retardation film A1 having a relation of nz>nx≧ny; and a retardation film B having an in-plane retardation (Re) in the range of from 200 to 300 nm, a relation of nx>nz>ny and satisfying Nz coefficient in the range of 0.3 nx≧ny; and the slow axis of the retardation film B is in parallel with or perpendicular to the absorption axes of the first and second polarizing plates. The liquid crystal display has a high contrast ratio over a wide range.

摘要翻译： 本发明的液晶显示器包括：面内切换液晶板，其包含取向取向根据与基板表面平行的电场而变化的液晶层; 将液晶面板夹在其间的第一偏振片和第二偏振片; 插入在第一偏振片和液晶面板之间的第一光学膜; 以及插入在第二偏振板和液晶面板之间的第二光学膜，其中第一光学膜包括：具有nz> nx> = ny的关系的延迟膜A 1; 以及具有在200〜300nm范围内的面内相位差（Re）的相位差膜B，nx> nz> ny的关系，并且在0.3 nx> = ny的关系的延迟膜A 2; 延迟膜B的慢轴与第一和第二偏振片的吸收轴平行或垂直。 液晶显示器在宽范围内具有高对比度。

公开(公告)号：US07030945B2

公开(公告)日：2006-04-18

申请号：US10225532

申请日：2002-08-22

申请人： Seiji Umemoto ,  Ryoji Kinoshita ,  Yuuki Nakano ,  Ichiro Amino ,  Toshihiko Ariyoshi

发明人： Seiji Umemoto ,  Ryoji Kinoshita ,  Yuuki Nakano ,  Ichiro Amino ,  Toshihiko Ariyoshi

IPC分类号： G02F1/13

CPC分类号： G02F1/133615

摘要： In a liquid-crystal display device, an optical path control layer is provided at least on an outer side of the back side substrate, and has a plurality of optical path changing slopes inclined at an inclination angle of from 35 to 48 degrees with respect to a reference plane of the back side substrate. The optical path control layer has a refractive index higher than that of a low-refractive-index transparent layer provided in the back side substrate. Another low-refractive-index transparent layer lower in refractive index than the transparent substrate may be provided in a visual side substrate. Light sources may be disposed on at least two side surfaces of the liquid-crystal display panel. Light sources may be disposed on side surfaces of the back side substrate and the visual side substrate and at least on side surfaces of the liquid-crystal display panel which are different from each other. Another optical path control layer may be provided also on an outer side of the visual side substrate.

摘要翻译： 在液晶显示装置中，光路控制层至少设置在背面侧基板的外侧，并且具有相对于背面侧基板倾斜35〜48度的多个光路改变斜面 背面基板的基准面。 光路控制层的折射率高于设置在背面基板中的低折射率透明层的折射率。 折射率低于透明基板的另一低折射率透明层可以设置在视觉侧基板中。 光源可以设置在液晶显示面板的至少两个侧表面上。 光源可以设置在彼此不同的背面基板和视觉侧基板以及液晶显示面板的至少侧面的侧面上。 也可以在视觉侧基板的外侧设置另一光路控制层。

公开(公告)号：US06956630B2

公开(公告)日：2005-10-18

申请号：US10092449

申请日：2002-03-08

申请人： Toshihiko Ariyoshi ,  Hideo Abe ,  Seiji Umemoto

发明人： Toshihiko Ariyoshi ,  Hideo Abe ,  Seiji Umemoto

IPC分类号： G02F1/1335 ,  F21V8/00 ,  G02B6/00 ,  G02F1/13357 ,  G09F9/00

CPC分类号： G02F1/133615 ,  G02B6/0038 ,  G02B6/0055 ,  G02F2001/133616 ,  G02F2201/34

摘要： A reflection type liquid-crystal display apparatus has a light source; and a liquid-crystal display device including a lower substrate provided with a reflection plate, an upper substrate provided with a transparent film on which a light reflection element is provided for reflecting transmitted light toward the lower substrate side, and liquid crystal held between the lower substrate and the upper substrate, the light source being disposed at an end surface of the upper substrate, the liquid-crystal display device being configured so that light incident onto a surface of the upper substrate opposite to a contact surface of the upper substrate with the liquid crystal is reflected by the reflection plate of the lower substrate so as to exit from the surface of the upper substrate opposite to the contact surface of the upper substrate with the liquid crystal, wherein at least one of end surfaces except the end surface on which the light source is disposed is coated with a reflection layer.

摘要翻译： 反射型液晶显示装置具有光源; 以及具有设置有反射板的下基板的液晶显示装置，设置有透明膜的上基板，在其上设置有用于将透射光反射到下基板侧的光反射元件，并且保持在下基板之间的液晶 基板和上基板，所述光源设置在所述上​​基板的端面，所述液晶显示装置被配置为使得入射到所述上基板的与所述上基板的接触表面相对的表面的光具有 液晶被下基板的反射板反射，从而与上液晶板的与上基板的接触面相反的表面离开液晶，其中除端面外的至少一个端面 光源设置有反射层。

公开(公告)号：US06888595B2

公开(公告)日：2005-05-03

申请号：US09781278

申请日：2001-02-13

申请人： Seiji Umemoto

发明人： Seiji Umemoto

IPC分类号： G02B5/08 ,  F21V8/00 ,  G02B5/02 ,  G02B6/00 ,  G02F1/1335 ,  G02F1/13357

CPC分类号： G02B6/0055 ,  G02B5/021 ,  G02B5/0268 ,  G02B5/0284 ,  G02B6/0051 ,  G02B6/0053 ,  G02F1/133553 ,  G02F1/133615

摘要： A reflector has a transparent film, an adhesive layer disposed on one surface of the transparent film, a groove structure provided on the other surface of the transparent film, the groove structure having a plurality of grooves including optical path changing slopes aligned in a substantially constant direction at an inclination angle in a range of from 35 to 48 degrees with respect to a plane of the transparent film, a transparent cover film formed so as to cover an outer surface of the groove structure, and a light diffusing type reflection layer disposed on an outer surface of the cover film. A lighting-external light double mode liquid-crystal display device comprising the above reflector and a transmission type liquid-crystal panel, wherein the reflector is bonded to aback side (opposite to a viewing side) of the transmission type liquid-crystal panel through the adhesive layer of the reflector.

摘要翻译： 反射器具有透明膜，设置在透明膜的一个表面上的粘合剂层，设置在透明膜的另一个表面上的槽结构，该槽结构具有多个槽，该凹槽包括基本上恒定的光路改变斜面 方向相对于透明膜的平面为35〜48度的范围的倾斜角，形成为覆盖槽结构的外表面的透明覆盖膜，以及设置在 覆盖膜的外表面。 一种照明外部光双重模式液晶显示装置，包括上述反射器和透射型液晶面板，其中反射器通过透射型液晶面板结合到透射型液晶面板的侧面（与观察侧相对） 反射器的粘合剂层。

公开(公告)号：US06795246B2

公开(公告)日：2004-09-21

申请号：US10195739

申请日：2002-07-16

申请人： Shuuji Yano ,  Seiji Umemoto

发明人： Shuuji Yano ,  Seiji Umemoto

IPC分类号： G02B530

CPC分类号： G02F1/133634

摘要： An optical film including: a birefringent film A having Re of from 200 to 350 nm and Nz of from 0.6 to 0.9; and a birefringent film B having Re of from 100 to 175 nm and Nz of from 0.3 to 0.7, and laminated on the birefringent film A so that optical axes of the birefringent films A and B intersect each other, in which Re and Nz are given by the relations (nx−ny)d=Re and (nx−nz)/(nx−ny)=Nz, nx, ny and nz are refractive indices of corresponding one of the birefringent films A and B in two directions in a plane of the birefringent film and in a direction of the thickness of the birefringent film, and d is the thickness of the birefringent film. A polarizer including: an optical film defined above; and a film having a polarizing function and laminated on the birefringent film A side of the optical film. A liquid-crystal display device including: a liquid-crystal cell; and a polarizer defined above, and disposed on at least one side of the liquid-crystal cell so that the film included in the polarizer and having the polarizing function is located on the outer side. Alternatively, a display device including: a polarizer defined above, and disposed at an anterior surface of the display device so that the film included in the polarizer and having the polarizing function is located on the outer side.

摘要翻译： 一种光学膜，包括：具有200至350nm的Re和0.6至0.9的Nz的双折射膜A; 以及Re为100〜175nm，Nz为0.3〜0.7的双折射膜B，层叠在双折射膜A上，使得双折射膜A，B的光轴相互交叉，由此得到Re和Nz 通过关系（nx-ny）d = Re和（nx-nz）/（nx-ny）= Nz，nx，ny和nz是双折射膜A和B中的相应一个双折射膜A和B在平面中的两个方向上的折射率 的双折射膜的厚度，d是双折射膜的厚度。 一种偏振器，包括：上述定义的光学膜; 以及具有偏光功能的膜，并且层压在光学膜的双折射膜A侧。 一种液晶显示装置，包括：液晶单元; 以及设置在上述液晶单元的至少一侧的偏振片，使得偏振片中包含的具有偏振功能的薄膜位于外侧。 或者，一种显示装置，包括：上面定义的偏振片，并且设置在显示装置的前表面处，使得包含在偏振器中并且具有偏振功能的膜位于外侧。

公开(公告)号：US06768529B2

公开(公告)日：2004-07-27

申请号：US09748212

申请日：2000-12-27

申请人： Seiji Umemoto ,  Toshihiko Ariyoshi ,  Hideo Abe

发明人： Seiji Umemoto ,  Toshihiko Ariyoshi ,  Hideo Abe

IPC分类号： G02F11335

CPC分类号： G02B6/0061 ,  G02B6/0036 ,  G02B6/0038 ,  G02F1/133615 ,  G02F2001/133616 ,  G02F2203/02

摘要： A reflection-transmission double type liquid-crystal display device has a transmission type liquid-crystal display panel including a liquid-crystal cell, at least one illuminator disposed on at least one side surface of the liquid-crystal display panel, an optical path changing sheet which has a refractive index exhibiting a refractive index difference of not higher than 0.15 from a refractive index of a nearest liquid-crystal cell substrate and is bonded onto a back side of the liquid-crystal display panel through an adhesive layer having a refractive index exhibiting a refractive index difference of not higher than 0.20 from the refractive index of the nearest liquid-crystal cell substrate, and a reflection layer disposed on a back side of the optical path changing sheet. The optical path changing sheet includes optical path changing slopes and flat surfaces. Each of the optical path changing slopes faces the illuminator at an inclination angle in a range of from 30 to 48 degrees with respect to a plane of the optical path changing sheet and being provided for reflecting incident light from the illuminator toward the visual side of the liquid-crystal display panel. Each of the flat surfaces is inclined at an inclination angle of not larger than 10 degrees with respect to the sheet plane, and a projected area of the flat surfaces on the sheet plane is not smaller than 10 times as large as a projected area of the optical path changing slopes.

摘要翻译： 反射透射型双液晶显示装置具有包括液晶单元的透射型液晶显示面板，设置在液晶显示面板的至少一个侧面的至少一个照明器， 片材，其具有从最近的液晶单元基板的折射率表现出不高于0.15的折射率差的折射率，并且通过具有折射率的粘合剂层粘合到液晶显示面板的背面 从最近的液晶单元基板的折射率出现不高于0.20的折射率差，以及设置在光路改变片背面的反射层。 光路改变片包括光路改变斜面和平坦表面。 每个光路改变斜面相对于光路改变片的平面以30至48度的范围内的倾斜角度面向照明器，并且被设置成用于将来自照明器的入射光反射到照明器的视觉侧 液晶显示面板。 每个平坦表面相对于片材平面以不大于10度的倾斜角度倾斜，并且平面上的平坦表面的投影面积不小于该平面的投影面积的10倍 光路改变斜率。

公开(公告)号：US06729736B2

公开(公告)日：2004-05-04

申请号：US09983473

申请日：2001-10-24

申请人： Seiji Umemoto

发明人： Seiji Umemoto

IPC分类号： F21V704

CPC分类号： G02B6/0038

摘要： There is provided a planar light source unit having a light pipe and a point light source, the light pipe being constituted by a plate-like body having upper and lower surfaces and a side surface serving as an incident surface on which incident light is made to exit from the lower surface through light exit means formed on the upper surface, the light exit means being disposed to face at least one virtual center on or outside the incidence side surface, the incident light made to exit from the upper or lower surface being transmitted to exit from the lower or upper surface through the plate-like body. There is also provided a reflection type liquid-crystal display device having a planar light source unit and a liquid-crystal panel including a reflection layer, the point light source being disposed in the virtual center or between the virtual center and the incidence side surface.

摘要翻译： 提供了一种具有光管和点光源的平面光源单元，该光管由具有上表面和下表面的板状体和用作入射光的入射表面的侧表面构成， 通过形成在上表面上的光出射装置从下表面出射，光出射装置被设置为面对入射侧表面上或外侧的至少一个虚拟中心，使得从上表面或下表面射出的入射光被透射 通过板状体从下表面或上表面离开。 还提供了一种具有平面光源单元和包括反射层的液晶面板的反射型液晶显示装置，该点光源设置在虚拟中心或虚拟中心与入射侧面之间。

公开(公告)号：US06710840B2

公开(公告)日：2004-03-23

申请号：US09883941

申请日：2001-06-20

申请人： Seiji Umemoto ,  Yoshimasa Sakata ,  Kiichi Shimodaira ,  Nobuyoshi Yagi

发明人： Seiji Umemoto ,  Yoshimasa Sakata ,  Kiichi Shimodaira ,  Nobuyoshi Yagi

IPC分类号： G02F11333

CPC分类号： G02F1/133615 ,  G02F1/133305 ,  G02F2001/133616 ,  Y10T428/1095 ,  Y10T428/24942

摘要： A liquid crystal display device having a resin substrate wherein a transparent resin plate has at least a conductive layer via a transparent layer with a lower refractive index than the resin plate, and a liquid crystal display panel including at least a liquid crystal cell with a liquid crystal carried between a visible side substrate and a back side substrate that are disposed with electrodes on their substrates opposed to one another. One or both of the visible side substrate and the back side substrate is or are the resin substrate.

摘要翻译： 一种具有树脂基板的液晶显示装置，其中透明树脂板通过具有比树脂板低的折射率的透明层至少具有导电层，以及至少包括具有液体的液晶单元的液晶显示面板 携带在可见侧基板和背面基板之间的晶体，该基板在彼此相对的基板上设置有电极。 可见侧基板和背面基板中的一个或两个是树脂基板或是树脂基板。

公开(公告)号：US06667787B2

公开(公告)日：2003-12-23

申请号：US09984514

申请日：2001-10-30

申请人： Seiji Umemoto

发明人： Seiji Umemoto

IPC分类号： G02F11335

CPC分类号： G02B5/3083 ,  G02F1/133634

摘要： A polarizer having a polarizing element, and at least one transparent protective film constituted by two layers of retardation films with an in-plane retardation of 190 to 320 nm with respect to light having a wavelength of 550 nm is provided. The transparent protective film is bonded onto one of opposite surfaces of the polarizing element so that a slow axis of each of the retardation films is parallel with an absorption axis of the polarizing element. The two layers of retardation films are constituted by a combination of a retardation film with Nz of 0.8 to 0.95 and a retardation film with Nz of 0.55 to 0.7 in the condition of nx>ny and Nz=(nx−nz)/(nx−ny) in which nx and ny are in-plane refractive indices of the retardation films respectively, and nz is a refractive index in a direction of thickness of each of the retardation films.

摘要翻译： 提供了一种具有偏振元件的偏振器和至少一个透明保护膜，该透明保护膜由相对于波长为550nm的光具有190至320nm的面内相位差的两层延迟膜构成。 透明保护膜粘合在偏振元件的相对表面之一上，使每个延迟膜的慢轴与偏振元件的吸收轴平行。 两层相位差膜由N×0.8〜0.95的相位差膜和nx> ny的Nz为0.55〜0.7的相位差膜的组合构成，Nz =（nx-nz）/（nx- ny），其中nx和ny分别是延迟膜的面内折射率，nz是每个相位差膜的厚度方向上的折射率。

公开(公告)号：US06590625B1

公开(公告)日：2003-07-08

申请号：US09576195

申请日：2000-05-23

申请人： Seiji Umemoto ,  Shuuji Yano

发明人： Seiji Umemoto ,  Shuuji Yano

IPC分类号： G02F11335

CPC分类号： G02B6/0038 ,  G02B6/0055

摘要： A liquid-crystal display device has a light pipe, a light source, a reflection layer, a light diffusion layer, and a liquid-crystal shutter. The light pipe is provided with light output means formed on an upper surface thereof. The light source is disposed near to an incident side surface of the light pipe so that light incident on the light pipe from the light source is delivered from a lower surface of the light pipe through the light output means. The reflection layer is disposed on the lower surface of the light pipe so that reflected light of the output light is transmitted through the upper surface. The light diffusion layer has polarization-keeping characteristic. The liquid-crystal shutter is disposed on the upper surface of the light pipe through the light diffusion layer, the liquid-crystal shutter including liquid-crystal cells and at least one polarizing plate.

摘要翻译： 液晶显示装置具有光管，光源，反射层，光扩散层和液晶快门。 光管设置有形成在其上表面上的光输出装置。 光源设置在光管的入射侧表面附近，使得从光源入射到光管上的光从光管的下表面通过光输出装置传送。 反射层设置在光管的下表面上，使得输出光的反射光透过上表面。 光扩散层具有偏振保持特性。 液晶快门通过光扩散层设置在光管的上表面上，液晶快门包括液晶单元和至少一个偏振片。