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：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：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。

公开(公告)号：US06742921B2

公开(公告)日：2004-06-01

申请号：US09888530

申请日：2001-06-26

申请人： Seiji Umemoto ,  Toshihiko Ariyoshi ,  Takao Suzuki ,  Shuuji Yano

发明人： Seiji Umemoto ,  Toshihiko Ariyoshi ,  Takao Suzuki ,  Shuuji Yano

IPC分类号： G02F11335

CPC分类号： G02B6/0038 ,  G02B6/0051 ,  G02B6/0056 ,  G02F2001/133616

摘要： A light pipe includes a plate-like member having light output means formed in its upper surface so that light incident on an incidence side surface of the plate-like member is exited from the lower surface of the plate-like member through the light output means, an adhesive layer having a refractive index lower than that of the plate-like member, and (i) an anti-reflection layer made of a circularly polarizer and bonded to a lower surface of the plate-like member through the adhesive layer or (ii) a light-diffusing layer having a surface of fine prismatic structures and bonded to a lower surface of the plate-like member through the adhesive layer. A plane light source unit includes at least one light source disposed on one side surface of the light pipe. A reflection type liquid-crystal display device includes the plane light source unit and a liquid-crystal cell including a reflection layer disposed on the light output side of the plane light source unit.

摘要翻译： 光管包括具有形成在其上表面中的光输出装置的板状构件，使得入射到板状构件的入射侧表面的光通过光输出装置从板状构件的下表面离开 ，折射率低于板状构件的粘合剂层，以及（i）由圆偏振片制成的防反射层，通过粘合剂层粘合到板状构件的下表面或（ ii）具有细棱柱结构的表面的光漫射层，并通过粘合剂层粘合到板状构件的下表面。 平面光源单元包括设置在光管的一个侧表面上的至少一个光源。 反射型液晶显示装置包括平面光源单元和包括设置在平面光源单元的光输出侧的反射层的液晶单元。

公开(公告)号：US06585386B1

公开(公告)日：2003-07-01

申请号：US09673368

申请日：2000-10-16

申请人： Shuuji Yano ,  Seiji Umemoto

发明人： Shuuji Yano ,  Seiji Umemoto

IPC分类号： F21V800

CPC分类号： G02B6/0038 ,  G02B6/0001 ,  G02B6/0046 ,  G02B6/0055

摘要： A light pipe in which light incident on an incident side surface (13) is outputted from a lower surface (12) through a light output means formed on an upper surface (11), the direction of the largest intensity of the light outputted from the lower surface is within an angle of 30 degrees to a normal line with respect to a reference plane of the lower surface, the largest intensity of light leaking from the upper surface in the direction within the angle of 30 degrees is not higher than 1/5 as high as the largest intensity at the lower surface, and the light pipe has a hard coat layer-on the upper surface so that light incident on the lower surface is transmitted from the upper surface; a surface light source device having a light source disposed on the incident side surface of the light pipe; and a reflection type liquid-crystal display device having a liquid-crystal cell provided with a reflection layer disposed on the lower surface side of the surface light source.

摘要翻译： 从入射侧面（13）入射的光通过形成在上表面（11）上的光输出装置从下表面（12）输出的光管，从 下表面相对于下表面的基准面相对于法线为30度的角度，在30度以内的方向从上表面泄漏的最大光强度不高于1/5 在上表面上的下表面的最大强度和光管具有硬涂层，使得入射在下表面上的光从上表面传播; 具有设置在所述光管的入射侧面的光源的面光源装置; 以及具有设置在表面光源的下表面侧的反射层的液晶元件的反射型液晶显示装置。

公开(公告)号：US06667835B2

公开(公告)日：2003-12-23

申请号：US10115898

申请日：2002-04-05

申请人： Shuuji Yano ,  Seiji Umemoto

发明人： Shuuji Yano ,  Seiji Umemoto

IPC分类号： G02B2728

CPC分类号： G02B5/3083 ,  G02F1/133634

摘要： An optical film having a laminate of three birefringent films A, B and C, the birefringent film A exhibiting dispersion and exhibiting Nz of from 0.4 to 0.6, the birefringent film B exhibiting larger dispersion than that of the birefringent film A and exhibiting smaller Re that that of the birefringent film A and Nz of from 0.4 to 0.6, the birefringent film C exhibiting Re of from 200 to 350 nm and exhibiting Nz of from 0.6 (not inclusively) to 0.9, the birefringent films A and B having slow axes crossing each other perpendicularly when Re=(nx−ny)d and Nz=(nx−nz)/(nx−ny) in which nx, ny and nz are refractive indices of each birefringent film in three-dimensional directions X, Y and Z, and d is the thickness of the birefringent film. A polarizer having a laminate of an optical film defined above and an absorptive type polarizing film, the absorptive type polarizing film being laminated on the birefringent film C side of the optical film so that an absorption axis of the absorptive type polarizing film is parallel to a slow axis of the birefringent film C. A liquid-crystal display device or another display device having an optical film or polarizer defined above.

公开(公告)号：US06700637B2

公开(公告)日：2004-03-02

申请号：US09576051

申请日：2000-05-23

申请人： Shuuji Yano ,  Seiji Umemoto

发明人： Shuuji Yano ,  Seiji Umemoto

IPC分类号： G02F11333

CPC分类号： G02F1/133615 ,  G02F1/133305

摘要： A liquid-crystal cell substrate constituted by a sheet which has a thickness in a range of from 0.1 to 1 mm and is made of a resin with a glass transition temperature of not lower than 130° C. and provided with light output means on one of upper and lower surfaces of the sheet so that light incident on a side surface is delivered out of the one of the upper and lower surfaces through the light output means. Liquid-crystal cells constituted by two cell substrates, and a liquid crystal enclosed in between the two cell substrates, wherein one of the two cell substrates is constituted by a liquid-crystal cell substrate. A liquid-crystal display device constituted by such liquid-crystal cells.

摘要翻译： 一种液晶单元基板，由厚度为0.1〜1mm的玻璃化转变温度为130℃以上的树脂制成的片材构成，在一个面上设置有光输出单元 使得入射在侧面上的光通过光输出装置从上表面和下表面中的一个传出。 由两个单元基板构成的液晶单元和两个单元基板之间的液晶，其中两个单元基板中的一个由液晶单元基板构成。 由这种液晶单元构成的液晶显示装置。

公开(公告)号：US07365816B2

公开(公告)日：2008-04-29

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

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：US06927821B2

公开(公告)日：2005-08-09

申请号：US10084054

申请日：2002-02-28

申请人： Shuuji Yano ,  Seiji Umemoto

发明人： Shuuji Yano ,  Seiji Umemoto

IPC分类号： G02B5/30 ,  G02F1/1335 ,  G02F1/13363

CPC分类号： G02F1/133634 ,  G02F1/133528

摘要： An optically compensatory polarizer has a polarizer and an optically compensating film. The polarizer includes an absorption type polarizing element and transparent protective layers provided on opposite sides of the absorption type polarizing element, each of the transparent protective layers exhibiting an in-plane retardation of not larger than 10 nm and a thicknesswise retardation in a range of from 30 to 70 nm. The optically compensating film is laminated on one or each of opposite surfaces of the polarizer so that a slow axis of each optically compensating film crosses an absorption axis of the polarizer perpendicularly, and exhibits an in-plane retardation in a range of from 80 to 200 nm and Nz=(nx−nz)/(nx−ny) in a range of from −0.2 to 0.2 and nx and ny satisfy the relation nx>ny.

摘要翻译： 光学补偿偏振器具有偏振器和光学补偿膜。 偏振片包括吸收型偏振元件和设置在吸收型偏振元件的相对侧上的透明保护层，每个透明保护层的面内相位差不大于10nm，厚度方向延迟范围为 30〜70nm。 光学补偿膜层叠在偏振片的相反表面的一个或每个上，使得每个光学补偿膜的慢轴垂直于偏振片的吸收轴，并且在80至200的范围内显示面内相位差 nm，Nz =（nx-nz）/（nx-ny）在-0.2〜0.2的范围内，nx和ny满足nx> ny的关系。

公开(公告)号：US06866393B2

公开(公告)日：2005-03-15

申请号：US09898060

申请日：2001-07-05

申请人： Shuuji Yano ,  Seiji Umemoto

发明人： Shuuji Yano ,  Seiji Umemoto

IPC分类号： G02B6/00 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/13357 ,  G09F9/00 ,  F21V7/04

CPC分类号： G02B6/0038 ,  G02B6/0051 ,  G02F2001/133616

摘要： A reflective liquid crystal display (LCD) is constituted by a light pipe which emits incident light from an incident side from the other surface of its upper and lower surfaces through light emitting means formed on the one of them, a plane light source device with a light source arranged on one or more sides of the light pipe, and a liquid crystal display (LCD) panel having a reflective layer. The light emitting side of the plane light source device and the visual recognition side of the LCD panel are bonded to each other through an adhesive layer having a refractive index lower than that of the light pipe.

摘要翻译： 反射型液晶显示器（LCD）由光管构成，该光管通过形成在其一个上的发光装置从其上表面和下表面的另一表面的入射侧发射入射光，平面光源装置具有 光源布置在光管的一侧或多侧上，以及具有反射层的液晶显示器（LCD）面板。 平面光源装置的发光侧和LCD面板的视觉识别侧通过具有比光管的折射率低的粘合剂层彼此接合。