公开(公告)号：US06300990B1

公开(公告)日：2001-10-09

申请号：US08984260

申请日：1997-12-03

申请人： Hisanori Yamaguchi ,  Shingo Fujita ,  Hiroaki Mizuno ,  Tetsu Ogawa

发明人： Hisanori Yamaguchi ,  Shingo Fujita ,  Hiroaki Mizuno ,  Tetsu Ogawa

IPC分类号： G02F11335

CPC分类号： G02F1/133504

摘要： A reflective liquid crystal display device of the present invention has the following construction. A transparent electrode is provided via color filter layer on a transparent substrate positioned at the upper side of the device. A metallic reflective electrode is provided on a substrate positioned at the lower side of the device. An alignment layer is provided on the transparent electrode and on the metallic reflective electrode respectively. The transparent substrate positioned at the upper side and the substrate positioned at the lower side are arranged parallel to each other with alignment films provided on the transparent electrode and on the metallic reflective electrode facing each other. A liquid crystal layer is provided between the alignment films. A scattering film is provided on a surface of the transparent substrate positioned at the upper side opposite to the surface where the transparent electrode is provided. A polymer film and a polarization film are provided in that sequential order on the scattering film. The present reflective liquid crystal display device can express a black and white display in achromatic color having bright white display and with high contrast, and has low visual angle dependency and excellent optical characteristics.

摘要翻译： 本发明的反射型液晶显示装置具有以下结构。 透明电极通过位于设备上侧的透明基板上的滤色器层提供。 金属反射电极设置在位于装置下侧的基板上。 在透明电极和金属反射电极上分别设置取向层。 位于上侧的透明基板和位于下侧的基板通过设置在透明电极和金属反射电极上的配向膜彼此平行地配置。 在取向膜之间设置液晶层。 在位于与设置透明电极的表面相对的上侧的透明基板的表面上设置散射膜。 在散射膜上按顺序设置聚合物膜和偏振膜。 本反射型液晶显示装置能够以明亮的白色显示和高对比度的方式表现出无彩​​色的黑白显示，并且具有低的视角依赖性和优异的光学特性。

公开(公告)号：US5982463A

公开(公告)日：1999-11-09

申请号：US934874

申请日：1997-09-22

申请人： Hisanori Yamaguchi ,  Hiroaki Mizuno ,  Shingo Fujita ,  Tetsu Ogawa

发明人： Hisanori Yamaguchi ,  Hiroaki Mizuno ,  Shingo Fujita ,  Tetsu Ogawa

IPC分类号： G02F1/133 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/139

CPC分类号： G02F1/13363 ,  G02F1/1397 ,  G02F2203/34 ,  G02F2413/02 ,  G02F2413/07 ,  G02F2413/08

摘要： A color liquid crystal display device comprises a liquid crystal cell and a polymer film. The liquid crystal cell comprises a liquid crystal layer positioned between a pair of transparent substrates, on whose innersides transparent electrodes are provided. The polymer film is positioned at one side of the liquid crystal cell. The liquid crystal layer and the polymer film are sandwiched by a pair of polarization films. A twist angle of the liquid crystal layer is set to be a predetermined value. The product of birefringence of the nematic liquid crystal, .DELTA.n.sub.LC, and a thickness of liquid crystal layer, d.sub.LC, .DELTA.n.sub.LC .multidot.d.sub.LC is set to be a predetermined value. The birefringence difference .DELTA.(R)=R.sub.Film -.DELTA.n.sub.LC .multidot.d.sub.LC, which is defined by using the .DELTA.n.sub.LC .multidot.d.sub.LC and retardation of the polymer film, R.sub.Film, is set to be a value between 0.0 .mu.m and 0.1 .mu.m. The present color liquid crystal device can express a black and white display in achromatic color having bright white and with high contrast, and a red display with high color purity.

摘要翻译： 彩色液晶显示装置包括液晶单元和聚合物膜。 液晶单元包括位于一对透明基板之间的液晶层，其上设置有透明电极。 聚合物膜位于液晶单元的一侧。 液晶层和聚合物膜被一对偏光膜夹在中间。 将液晶层的扭转角设定为规定值。 向列型液晶的双折射产物，DELTA nLC和液晶层dLC，DELTA nLCxdLC的厚度被设定为预定值。 通过使用DELTA nLCxdLC和聚合物膜的延迟RFilm定义的双折射差DELTA（R）= RFilm-DELTA nLC xdLC被设置为在0.0μm和0.1μm之间的值。 本发明的彩色液晶显示装置可以表现出具有明亮的白色和高对比度的无彩色的黑白显示，以及高纯度的红色显示。

公开(公告)号：US6055033A

公开(公告)日：2000-04-25

申请号：US304248

申请日：1999-05-03

申请人： Hisanori Yamaguchi ,  Hiroaki Mizuno ,  Shingo Fujita ,  Tetsu Ogawa

发明人： Hisanori Yamaguchi ,  Hiroaki Mizuno ,  Shingo Fujita ,  Tetsu Ogawa

IPC分类号： G02F1/133 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/139

CPC分类号： G02F1/13363 ,  G02F1/1397 ,  G02F2203/34 ,  G02F2413/02 ,  G02F2413/07 ,  G02F2413/08

摘要： A color liquid crystal display device comprises a liquid crystal cell and a polymer film. The liquid crystal cell comprises a liquid crystal layer positioned between a pair of transparent substrates, on whose innersides transparent electrodes are provided. The polymer film is positioned at one side of the liquid crystal cell. The liquid crystal layer and the polymer film are sandwiched by a pair of polarization films. A twist angle of the liquid crystal layer is set to be a predetermined value. The product of birefringence of the nematic liquid crystal, .DELTA.n.sub.LC, and a thickness of liquid crystal layer, d.sub.LC, .DELTA.n.sub.LC .multidot.d.sub.LC is set to be a predetermined value. The birefringence difference .DELTA.(R)=R.sub.Film -.DELTA.n.sub.LC .multidot.d.sub.LC, which is defined by using the .DELTA.n.sub.LC .multidot.d.sub.LC and retardation of the polymer film, R.sub.Film, is set to be a value between 0.0 .mu.m and 0.1 .mu.m. The present color liquid crystal device can express a black and white display in achromatic color having bright white and with high contrast, and a red display with high color purity.

摘要翻译： 彩色液晶显示装置包括液晶单元和聚合物膜。 液晶单元包括位于一对透明基板之间的液晶层，其上设置有透明电极。 聚合物膜位于液晶单元的一侧。 液晶层和聚合物膜被一对偏光膜夹在中间。 将液晶层的扭转角设定为规定值。 向列型液晶的双折射产物，DELTA nLC和液晶层dLC，DELTA nLCxdLC的厚度被设定为预定值。 通过使用DELTA nLCxdLC和聚合物膜的延迟RFilm定义的双折射差DELTA（R）= RFilm-DELTA nLCxdLC被设置为在0.0μm和0.1μm之间的值。 本发明的彩色液晶显示装置可以表现出具有明亮的白色和高对比度的无彩色的黑白显示，以及高纯度的红色显示。

公开(公告)号：US06426785B2

公开(公告)日：2002-07-30

申请号：US09907197

申请日：2001-07-17

申请人： Hisanori Yamaguchi ,  Shingo Fujita ,  Hiroaki Mizuno ,  Tetsu Ogawa

发明人： Hisanori Yamaguchi ,  Shingo Fujita ,  Hiroaki Mizuno ,  Tetsu Ogawa

IPC分类号： G02F11335

CPC分类号： G02F1/133504

摘要： A reflective liquid crystal display device of the present invention has the following construction. A transparent electrode is provided via color filter layer on a transparent substrate positioned at the upper side of the device. A metallic reflective electrode is provided on a substrate positioned at the lower side of the device. An alignment layer is provided on the transparent electrode and on the metallic reflective electrode respectively. The transparent substrate positioned at the upper side and the substrate positioned at the lower side are arranged parallel to each other with alignment films provided on the transparent electrode and on the metallic reflective electrode facing each other. A liquid crystal layer is provided between the alignment films. A scattering film is provided on a surface of the transparent substrate positioned at the upper side opposite to the surface where the transparent electrode is provided. A polymer film and a polarization film are provided in that sequential order on the scattering film. The present reflective liquid crystal display device can express a black and white display in achromatic color having bright white display and with high contrast, and has low visual angle dependency and excellent optical characteristics.

摘要翻译： 本发明的反射型液晶显示装置具有以下结构。 透明电极通过位于设备上侧的透明基板上的滤色器层提供。 金属反射电极设置在位于装置下侧的基板上。 在透明电极和金属反射电极上分别设置取向层。 位于上侧的透明基板和位于下侧的基板通过设置在透明电极和金属反射电极上的配向膜彼此平行地配置。 在取向膜之间设置液晶层。 在位于与设置透明电极的表面相对的上侧的透明基板的表面上设置散射膜。 在散射膜上按顺序设置聚合物膜和偏振膜。 本反射型液晶显示装置能够以明亮的白色显示和高对比度的方式表现出无彩​​色的黑白显示，并且具有低的视角依赖性和优异的光学特性。

公开(公告)号：US6130735A

公开(公告)日：2000-10-10

申请号：US93184

申请日：1998-06-08

申请人： Takayuki Hatanaka ,  Shingo Fujita ,  Hisanori Yamaguchi ,  Tetsu Ogawa

发明人： Takayuki Hatanaka ,  Shingo Fujita ,  Hisanori Yamaguchi ,  Tetsu Ogawa

IPC分类号： G02F1/1335

CPC分类号： G02F1/133504 ,  G02F2203/02

摘要： A reflective liquid crystal display device comprising a polarizer, a retardation film, a front scattering film layer, and a liquid crystal cell having a mirror reflector, in which the front scattering film layer includes at least one film of which scattering angle range is asymmetrical to the normal direction of film. A plural front scattering films of which scattering angle range is asymmetrical to the film normal are laminated so that the projection direction onto the film surface in the central angle direction of the scattering angle range may be different. At least one of the scattering films for composing the scattering film layer is a front scattering film for scattering more strongly the transmission light from the second incident angle region not containing the film normal direction than the transmission light from the first incident angle region containing the film normal direction.

摘要翻译： 一种反射型液晶显示装置，包括偏振器，延迟膜，前散射膜层和具有反射镜的液晶单元，其中前散射膜层包括至少一个散射角范围不对称的膜， 电影的正常方向。 层叠散射角度范围与膜法线不对称的多个前散射膜，使得在散射角度范围的中心角方向上的膜表面上的投影方向可以不同。 用于构成散射膜层的散射膜中的至少一个是用于从不含膜法线方向的第二入射角区域的透射光比来自包含膜的第一入射角区域的透射光更强地散射的前散射膜 正常方向

公开(公告)号：US06661484B1

公开(公告)日：2003-12-09

申请号：US09547612

申请日：2000-04-12

申请人： Yoshio Iwai ,  Hisanori Yamaguchi ,  Tomoaki Sekime ,  Yoshihiro Sakurai ,  Tetsu Ogawa

发明人： Yoshio Iwai ,  Hisanori Yamaguchi ,  Tomoaki Sekime ,  Yoshihiro Sakurai ,  Tetsu Ogawa

IPC分类号： G02F11335

CPC分类号： G02F1/133371 ,  G02F1/133377 ,  G02F1/133514 ,  G02F2203/02 ,  G02F2413/09

摘要： Deviation in phase difference of the light passing each of the red, green, and blue dots, i.e., 2&pgr;*(&agr;*dR*&Dgr;nR+ReR)/&lgr;R, 2&pgr;*(&agr;*dG*&Dgr;nG+ReG)/&lgr;G, and 2&pgr;*(&agr;*dB*&Dgr;nB+ReB)/&lgr;B, are matched when thickness of a liquid crystal layer 7 at red, green, and blue dots are dR, dG, and dB; wavelength of a visible light passing each dot is &lgr;R, &lgr;R, and &lgr;B; refractive index anisotropy of the liquid crystal layer 7 in the visible light wavelengths &lgr;R, &lgr;R, and &lgr;B is &Dgr;nR, &Dgr;n G, and &Dgr;nB; and retardations of a retardation plate are ReR, ReG, and ReB. This enables the achievement of a reflective color LCD with high achromatic color during white display and high contrast display.

摘要翻译： 通过红色，绿色和蓝色点的光的相位差的偏差，即2pi *（α* dR * DeltanR + ReR）/λR，2pi *（α* dG * DeltanG + ReG）/λG，以及 在红色，绿色和蓝色点处的液晶层7的厚度为dR，dG和dB时，2pi *（α* dB * DeltanB + ReB）/λB匹配; 通过每个点的可见光的波长是λR，λR和λB; 在可见光波长λR，λR和λB中的液晶层7的折射率各向异性为DeltanR，Deltan G和DeltanB; 并且延迟板的延迟是ReR，ReG和ReB。 这使得能够在白显示和高对比度显示期间实现具有高消色差的反射彩色LCD。

公开(公告)号：US06567149B1

公开(公告)日：2003-05-20

申请号：US09673310

申请日：2000-10-13

申请人： Hisanori Yamaguchi ,  Tomaoki Sekime ,  Yoshio Iwai ,  Tetsu Ogawa

发明人： Hisanori Yamaguchi ,  Tomaoki Sekime ,  Yoshio Iwai ,  Tetsu Ogawa

IPC分类号： C09K1902

CPC分类号： G02F1/1396 ,  G02F1/13363 ,  G02F2001/133531 ,  G02F2001/1398 ,  G02F2203/02

摘要： A reflection liquid crystal display device comprising only one polarization film, wherein the twist angle of a nematic liquid crystal ranges from 0° to 90°, the relationship between the difference between the indices of birefringence &Dgr;nLC, the thickness of the liquid crystal layer dLC, and the retardation of the phase plate RF is expressed by &Dgr;nLC.dLC=0.20 to 0.30 &mgr;m, RF-&Dgr;nLC.dLC=−0.20 to −0.05 &mgr;m; Defining the direction in which a nematic liquid crystal is twisted toward a lower substrate when viewed from above an upper substrate as positive and letting the direction of the major axis of the liquid crystal molecule the nearest to one of the upper and lower substrates be represented by &PHgr;LC, the direction of the phase lagging axis of the phase plate be represented &PHgr;F, and the direction of the absorbing or transmitting axis of the polarization film be represented by &PHgr;P, the relationship between the directions is expressed by &PHgr;F-&PHgr;LC=−40° to −25°, &PHgr;P-&PHgr;F=+50° to +80° or &PHgr;F-&PHgr;LC=+65° to 105°, &PHgr;P-&PHgr;F=−60° to −90°. Therefore, bright white can be displayed and a nonchromatic high-contrast image can be also displayed.

摘要翻译： 一种仅包含一个偏光膜的反射型液晶显示装置，其中向列型液晶的扭转角为0°〜90°，双折射率DELTAnLC的指标差，液晶层dLC的厚度， 并且相位差RF的延迟由DELTAnLC.dLC = 0.20〜0.30μm，RF-DELTAnLC.dLC = -0.20〜-0.05mum表示; 定义从上基板上方观察向列液晶向下基板扭转的方向为正，并且使液晶分子的长轴方向最靠近上基板和下基板中的一个的方向表示为 PHILC，相位板的相位滞后轴的方向表示为PHIF，偏振膜的吸收或透射轴的方向由PHIP表示，方向之间的关系由PHIF-PHILC = -40° 至-25°，PHIP-PHIF = + 50°至+ 80°或PHIF-PHILC = + 65°至105°，PHIP-PHIF = -60°至-90°。 因此，可以显示亮白色并且还可以显示非彩色高对比度图像。

公开(公告)号：US06633352B2

公开(公告)日：2003-10-14

申请号：US09377834

申请日：1999-08-20

申请人： Hisanori Yamaguchi ,  Tomoaki Sekime ,  Yoshio Iwai ,  Tetsu Ogawa

发明人： Hisanori Yamaguchi ,  Tomoaki Sekime ,  Yoshio Iwai ,  Tetsu Ogawa

IPC分类号： G02F11335

CPC分类号： G02F1/13363 ,  G02F1/1396 ,  G02F1/1397 ,  G02F2001/1398 ,  G02F2202/40 ,  G02F2203/02 ,  G02F2413/08 ,  G02F2413/105 ,  G02F2413/11 ,  G02F2413/13

摘要： A reflection type liquid crystal display device having a wide viewing angle, and capable of assuring a light utilization factor at or above a certain value for bright display even when conditions of an external light are varied is provided. The reflection type liquid crystal display device comprises (a) a liquid crystal cell comprising an upper substrate, a lower substrate and a liquid crystal layer between the substrates, (b) a polarizing film provided in a side of the upper substrate in the liquid crystal cell, (c) light reflecting means provided in a side of the lower substrate in the liquid crystal cell; and (d) an optical member provided between the polarizing film and the liquid crystal cell, and having a retardation axis when it is viewed in the normal direction. An angle between an absorption axis of the polarizing film and the retardation axis of the optical member is within a range of about 88° to about 92° or about −2° to about +2° . A retardation value in relation to the normal direction of the optical member is within a range of about 50 nm to about 500 nm.

摘要翻译： 提供具有宽视角的反射型液晶显示装置，并且即使在外部光的条件变化时，也能够确保亮度显示等于或高于某一值的光利用率。 反射型液晶显示装置包括（a）液晶单元，其包括上基板，下基板和基板之间的液晶层，（b）设置在液晶中的上基板侧的偏振膜 电池，（c）设置在液晶单元中的下基板的一侧的光反射装置; 以及（d）设置在所述偏振膜和所述液晶单元之间的光学构件，并且当沿所述法线方向观察时具有延迟轴。 偏光膜的吸收轴与光学构件的延迟轴之间的角度在约88°至约92°或约-2°至约+2°的范围内。 相对于光学构件的法线方向的延迟值在约50nm至约500nm的范围内。

公开(公告)号：US06480251B1

公开(公告)日：2002-11-12

申请号：US09701099

申请日：2001-01-23

申请人： Hisanori Yamaguchi ,  Tomoaki Sekime ,  Yoshio Iwai ,  Tetsu Ogawa

发明人： Hisanori Yamaguchi ,  Tomoaki Sekime ,  Yoshio Iwai ,  Tetsu Ogawa

IPC分类号： G02F11335

CPC分类号： G02F1/13363 ,  G02F1/1396 ,  G02F2001/133531 ,  G02F2203/02 ,  G02F2413/08 ,  G02F2413/12 ,  G02F2413/13

摘要： In a reflective liquid crystal display device with a single polarizing film and two retardation films located in between the polarizing film and liquid crystal cell, the angle of twist of nematic liquid crystal is 45°˜90°, the product of the birefringence of the liquid crystal and the thickness of the liquid crystal layer is 0.20 &mgr;m˜0.30 &mgr;m, the retardation value of the retardation film on the polarizing film side is 0.13 &mgr;m˜0.18 &mgr;m, the retardation value of the retardation film on the liquid crystal cell side is 0.13 &mgr;m˜0.18 &mgr;m, and the Z coefficient of each of two retardation films is 0.3˜1.0. This invention is featured by the following optical relations, that is, ØP 75°˜195°, ØP−ØF1, 105°˜115°, and ØP−ØF2, 165°˜175°, where ØP, ØF1 and ØF2 are angles formed by the reference line and respectively the direction of the absorption axis of the polarizing film, the direction of the slow axis of the retardation film on the polarizing film side, and the direction of the slow axis of the retardation film on the liquid crystal cell side. With the foregoing construction, a high contrast display of bright achromatic white and achromatic black is achieved.

摘要翻译： 在具有单偏光膜的反射型液晶显示装置和位于偏光膜和液晶单元之间的两个延迟膜的情况下，向列型液晶的扭转角为45°〜90°，液体双折射的乘积 晶体，液晶层的厚度为0.20μm〜0.30μm，偏光膜侧的延迟膜的延迟值为0.13μm〜0.18μm，液晶单元侧的延迟膜的延迟值为0.13 mum〜0.18μm，两个相位差膜的Z系数为0.3〜1.0。 本发明具有以下光学关系，即ØP75°〜195°，ØP-ØF1,105°〜115°，ØP-ØF2,165°〜175°，其中ØP，ØF1和ØF2为角度形成 通过基准线和偏振膜的吸收轴的方向，偏振膜侧的延迟膜的慢轴方向以及液晶单元侧的延迟膜的慢轴方向 。 利用上述结构，实现了明亮的无彩色白色和消色差黑色的高对比度显示。

公开(公告)号：US06297863B1

公开(公告)日：2001-10-02

申请号：US09136773

申请日：1998-08-19

申请人： Hisanori Yamaguchi ,  Tomoaki Sekime ,  Yoshio Iwai ,  Tetsu Ogawa

发明人： Hisanori Yamaguchi ,  Tomoaki Sekime ,  Yoshio Iwai ,  Tetsu Ogawa

IPC分类号： G02F11347

CPC分类号： G02F1/13363 ,  G02F2001/1398 ,  G02F2202/40 ,  G02F2203/02 ,  G02F2413/01 ,  G02F2413/08

摘要： A reflective liquid crystal display device of the present invention has the following construction. Only one polarization film is needed. The twist angle of the nematic liquid crystal layer is set in the range of 0° to 90°. The product of the birefringence of the nematic liquid crystal layer &Dgr;nLC and the thickness of the liquid crystal layer dLC, &Dgr;nLC·dLC, is in the range of 0.35 &mgr;m to 0.50 &mgr;m. The birefringence difference, &Dgr;R=RFilm−&Dgr;nLC·dLC is in the range of −0.20 &mgr;m to 0.00 &mgr;m. When a reflective liquid crystal display device is seen from a side of a substrate positioned at the upper side, the direction of the liquid crystal which is twisted to a side of a substrate positioned at the lower side is designated as the positive direction, &phgr;LC represents an angle between the base line and the longer axis direction of the liquid crystal molecule which is positioned most closely to a first substrate, &phgr;F represents an angle between the base line and the retardation axis direction of the polymer film, &phgr;P represents an angle between the base line and the adsorption axis direction of the polarization film, &phgr;F−&phgr;LC is in the range of 70° to 110°and &phgr;P−&phgr;F is in the range of −90° to −60°.

摘要翻译： 本发明的反射型液晶显示装置具有以下结构。 只需要一个偏光膜。 向列液晶层的扭转角度设定在0°〜90°的范围内。 向列型液晶层DELTAnLC的双折射和液晶层dLC（DELTAnLC.dLC）的厚度的乘积在0.35μm至0.50μm的范围内。 双折射差，DELTAR = RFilm-DELTAnLC.dLC在-0.20μm到0.00μm的范围内。 当从位于上侧的基板的侧面看到反射型液晶显示装置时，将位于下侧的基板扭曲的液晶的方向设为正方向，phiLC表示 位于最靠近第一基板的液晶分子的基线与长轴方向之间的角度，phiF表示基线与聚合物膜的延迟轴方向之间的角度，phiP表示 基线和偏振膜的吸附轴方向，phiF-phiLC在70°至110°的范围内，phiP-phiF在-90°至-60°的范围内。