公开(公告)号：US07202926B2

公开(公告)日：2007-04-10

申请号：US10606286

申请日：2003-06-26

申请人： Keiji Kashima

发明人： Keiji Kashima

IPC分类号： G02F1/1335

CPC分类号： G02B5/3083 ,  G02B5/3016 ,  G02B5/305 ,  G02F2413/15

摘要： Provided herein is a retardation optical element 10 that produces no bright and dark fringes on a displayed image even when placed between a liquid crystal cell 104 and a polarizer 102B and thus can effectively prevent lowering of display quality. The retardation optical element 10 includes a retardation layer 12 having a cholesteric-regular molecular structure with liquid crystalline molecules in planar orientation. The helical pitch in the molecular structure of the retardation layer 12 is so adjusted that the retardation layer 12 can, owing to its molecular structure, selectively reflect light whose wavelength falls in a range different from the wave range of light incident on the retardation layer 12 (the selective reflection wave range of the retardation layer is either shorter or longer than the wave range of the incident light). Further, the retardation layer 12 has two opposite main surfaces (larger surfaces) 12A and 12B that are perpendicular to each other in the direction of thickness, where the directions of the directors Da of the liquid crystalline molecules on the entire area of the one surface 12A are substantially the same, and those of the directors Db of the liquid crystalline molecules on the entire area of the other surface 12B are also substantially the same.

摘要翻译： 这里提供了即使当放置在液晶单元104和偏振器102B之间时也不会在显示图像上产生亮和黑条纹的延迟光学元件10，从而可以有效地防止显示质量的降低。 延迟光学元件10包括具有平面取向的液晶分子的胆甾型规则分子结构的相位差层12。 延迟层12的分子结构中的螺距被调整为使得延迟层12由于其分子结构可以选择性地反射波长在与入射到延迟层12上的光的波长范围不同的范围内的光 （延迟层的选择反射波长范围比入射光的波长更短或更长）。 此外，延迟层12具有在厚度方向上彼此垂直的两个相对的主表面（较大表面）12A和12B，其中液晶分子的导体Da的方向在整个区域 一个表面12A基本相同，另一个表面12B的整个区域上的液晶分子的指向物Db也基本相同。

公开(公告)号：US20070076153A1

公开(公告)日：2007-04-05

申请号：US11602382

申请日：2006-11-21

申请人： Keiji Kashima

发明人： Keiji Kashima

IPC分类号： G02F1/1335

CPC分类号： G02F1/13363 ,  G02B5/3016 ,  G02B5/3083 ,  G02F1/1393 ,  G02F2001/133633 ,  G02F2001/133638 ,  G02F2413/09

摘要： A main object of the invention is to provide a phase difference layer laminated body which has a very high freedom in orienting molecules of its phase difference layer, and which is manufactured with ease. To achieve the above object, the invention provides a phase difference layer laminated body including a base material having orientability, and a phase difference layer made of a liquid crystal material that can form a nematic phase and formed in a pattern on the base material such as to have refractive index anisotropy.

摘要翻译： 本发明的主要目的在于提供一种相位差层叠体，其在相位差层的分子取向上具有非常高的自由度，而且易于制造。 为了实现上述目的，本发明提供一种相位差层叠体，其包括具有取向性的基材，以及由能够形成向列相的液晶材料形成的相位差层，并且在基材上形成图案， 具有折射率各向异性。

公开(公告)号：US20060170859A1

公开(公告)日：2006-08-03

申请号：US11391561

申请日：2006-03-29

申请人： Keiji Kashima ,  Koji Ishizaki

发明人： Keiji Kashima ,  Koji Ishizaki

IPC分类号： C09K19/02

CPC分类号： G02B5/3016

摘要： The present invention provides a method of efficiently and precisely patterning cholesteric films. A cholesteric film 13 is firstly formed on an alignment film 12 provided on a glass substrate 11. The cholesteric film 13 is then patterned by partially volatilizing and removing a part of the cholesteric film 13 by the application of laser light 20 having a wavelength not falling in the selective reflection wave range of the cholesteric film 13. It is preferred that the wavelength of the laser light 20 be shorter than that of visible light. Alternatively, there may be used laser light 20 containing, as its main component, a component circularly polarized in the direction opposite to that of optical rotation of a component selectively reflected by the cholesteric film.

公开(公告)号：US07068345B2

公开(公告)日：2006-06-27

申请号：US10250779

申请日：2002-11-07

申请人： Keiji Kashima

发明人： Keiji Kashima

IPC分类号： G02F1/1335

CPC分类号： G02B1/10 ,  G02B5/3016 ,  G02B7/008

摘要： An optical device in which a polymerizable liquid crystal material various optical characteristics of which is stable even against heating during manufacture of an optical apparatus such as an image display is cured. The optical device has a support and an optical functional layer made of a cured polymerizable liquid crystal material having a predetermined liquid crystal regularity and provided on the support. The optical device is characterized in that the optical device is subjected to a heat treatment at a predetermined temperature and in that the thickness decrease of the optical functional layer defined by (A-B)/A is 5% or less where A is the thickness of the optical functional layer after the heat treatment, and B is the thickness of the optical functional layer after the optical device is heated for 60 minutes at the heat-treatment temperature.

摘要翻译： 固化其中在诸如图像显示器的光学装置的制造期间其各种光学特性在加热时稳定的可聚合液晶材料的光学装置。 光学器件具有支撑体和由具有预定液晶方向性的固化的可聚合液晶材料制成的光学功能层，并设置在支撑体上。 光学装置的特征在于，光学装置在预定温度下进行热处理，并且由（AB）/ A限定的光学功能层的厚度减小为5％以下，其中A为 热处理后的光功能层，B是在热处理温度下将光学元件加热60分钟后的光学功能层的厚度。

公开(公告)号：US07057687B2

公开(公告)日：2006-06-06

申请号：US10107316

申请日：2002-03-28

申请人： Keiji Kashima ,  Koji Ishizaki

发明人： Keiji Kashima ,  Koji Ishizaki

IPC分类号： G02F1/1335

CPC分类号： G02B5/3016

摘要： The present invention provides a method of efficiently and precisely patterning cholesteric films. A cholesteric film 13 is firstly formed on an alignment film 12 provided on a glass substrate 11. The cholesteric film 13 is then patterned by partially volatilizing and removing a part of the cholesteric film 13 by the application of laser light 20 having a wavelength not falling in the selective reflection wave range of the cholesteric film 13. It is preferred that the wavelength of the laser light 20 be shorter than that of visible light. Alternatively, there may be used laser light 20 containing, as its main component, a component circularly polarized in the direction opposite to that of optical rotation of a component selectively reflected by the cholesteric film.

摘要翻译： 本发明提供了一种高效精确地构图胆甾型薄膜的方法。 首先在设置在玻璃基板11上的取向膜12上形成胆甾醇膜13。 然后，通过施加具有不落入胆甾醇膜13的选择反射波段的波长的激光20，通过部分挥发和去除胆甾醇膜13的一部分来对胆甾型薄膜13进行图案化。优选的是， 激光20比可见光的短。 或者，可以使用激光20，该激光20以与由胆甾醇膜选择性反射的分量的旋光方向相反的方向包含作为其主要成分的圆偏振分量。

公开(公告)号：US07030949B2

公开(公告)日：2006-04-18

申请号：US10156770

申请日：2002-05-29

申请人： Keiji Kashima

发明人： Keiji Kashima

IPC分类号： G02F1/1333 ,  G02F1/1335 ,  C09K19/02

CPC分类号： G02F1/13718 ,  G02F1/133504 ,  G02F1/133514

摘要： A wavelength-selecting optical element includes a cholesteric layer that reflects or transmits either of a right-handed circularly polarized light component and a left-handed circularly polarized light component in a selected wavelength band of an incident light; and a diffusing layer disposed on the exit side of the cholesteric layer to diffuse the circularly polarized light component reflected or transmitted by the cholesteric layer. The cholesteric layer may be a color filter having a red, a green and a blue pixel region for each of pixels. Each of the pixel regions reflects or transmits either of a right-handed circularly polarized light component and a left-handed circularly polarized light component in a selected wavelength band of an incident light.

摘要翻译： 波长选择光学元件包括反射或透射入射光的选定波长带中的右旋圆偏振光分量和左旋圆偏振光分量中的任一个的胆甾醇层; 以及设置在胆甾醇层的出射侧的扩散层，以扩散由胆甾醇层反射或透射的圆偏振光成分。 胆甾醇层可以是对于每个像素具有红色，绿色和蓝色像素区域的滤色器。 每个像素区域反射或透射入射光的选定波长带中的右旋圆偏振光分量和左旋圆偏振光分量中的任一个。

公开(公告)号：US20060033861A1

公开(公告)日：2006-02-16

申请号：US11242853

申请日：2005-10-05

申请人： Keiji Kashima

发明人： Keiji Kashima

IPC分类号： G02F1/1333

CPC分类号： G02B1/10 ,  G02B5/3016 ,  G02B7/008

摘要： An optical device in which a polymerizable liquid crystal material various optical characteristics of which is stable even against heating during manufacture of an optical apparatus such as an image display is cured. The optical device has a support and an optical functional layer made of a cured polymerizable liquid crystal material having a predetermined liquid crystal regularity and provided on the support. The optical device is characterized in that the optical device is subjected to a heat treatment at a predetermined temperature and in that the thickness decrease of the optical functional layer defined by (A−B)/A is 5% or less where A is the thickness of the optical functional layer after the heat treatment, and B is the thickness of the optical functional layer after the optical device is heated for 60 minutes at the heat-treatment temperature.

公开(公告)号：US06583833B1

公开(公告)日：2003-06-24

申请号：US09566399

申请日：2000-05-05

申请人： Keiji Kashima

发明人： Keiji Kashima

IPC分类号： G02F11335

CPC分类号： G02F1/133555 ,  G02F1/133528 ,  G02F1/133536 ,  G02F1/13471 ,  G02F1/1393 ,  G02F2001/133543 ,  G02F2001/133638 ,  G02F2203/01 ,  G02F2203/02

摘要： In a combination reflective/transmissive liquid-crystal display device, when the liquid-crystal display device is in the transmissive mode, unpolarized light from a light source passes through a circular polarization separating layer, a half-wavelength layer in the off condition, and a first bidirectional dichroic circular polarizing layer and then strikes a liquid-crystal cell, the retardation value of which, as a result of an electrical field applied thereto, changes so as to shift light 0 to &pgr;, thereby modulating incident As circularly polarized light, which is caused to strike a second bidirectional dichroic circular polarizing layer, the transmitted component in which serves as the display light. In the reflective mode, external light passes through the second bidirectional dichroic circular polarizing layer, the liquid-crystal cell, the half-wavelength layer which has been turned on, and the first bidirectional dichroic circular polarizing layer, and is then reflected by the circular polarization separating layer so as to become circularly polarized light that also serves as the display light.

摘要翻译： 在反射/透射型液晶显示装置的组合中，当液晶显示装置处于透射模式时，来自光源的非偏振光通过圆偏振分离层，处于关闭状态的半波长层，以及 第一双向二向色圆偏振层，然后撞击液晶单元，其作为施加于其上的电场的结果的延迟值发生变化，以将光0偏移到pi，从而调制入射的As圆偏振光， 其被引入第二双向二向色圆偏振层，其中透射分量用​​作显示光。 在反射模式中，外部光通过第二双向二向色圆偏振层，液晶单元，已经导通的半波长层和第一双向二向色圆偏振层，然后被圆形 偏振分离层，成为也作为显示光的圆偏振光。

公开(公告)号：US06560023B2

公开(公告)日：2003-05-06

申请号：US09956071

申请日：2001-09-20

申请人： Keiji Kashima ,  Fumihiro Arakawa

发明人： Keiji Kashima ,  Fumihiro Arakawa

IPC分类号： G02B502

CPC分类号： G02B6/0031 ,  G02B5/021 ,  G02B5/0215 ,  G02B5/0226 ,  G02B5/0231 ,  G02B5/0242 ,  G02B5/0278 ,  G02B5/045 ,  G02B6/0038 ,  G02B6/0041 ,  G02B6/0043 ,  G02B6/0046 ,  G02B6/005 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0055 ,  G02B6/0071 ,  G02F1/133606 ,  G02F2001/133607

摘要： In an optical sheet 10 having a prism surface 16 formed by providing unit prisms 14 on the upper surface of a transparent base material 12, a coating layer 18 is provided on the reverse surface of the transparent base material opposite to the prism surface 16, spherical beads 20 are arranged projecting from the surface of the coating layer 18 by 1 to 10 &mgr;m in height, and the coating layer 18 is brought into contact with the flat and smooth surface 22A of the light-transmissive material 22 through the spherical beads 20 which are put between them. The spherical beads are 1 &mgr;m or less in half bandwidth of the distribution of particle diameters and are made uniform in height projecting from the coating layer 18.

摘要翻译： 在具有通过在透明基材12的上表面上设置单位棱镜14而形成的棱镜面16的光学片10中，在与棱镜面16相反的透明基材的背面上设置有涂层18， 珠子20从涂层18的表面高度突出1至10微米，并且涂层18通过球形珠20与透光材料22的平坦光滑表面22A接触， 在他们之间。 球形珠在粒径分布的半带宽中为1μm或更小，并且从涂层18突出的高度均匀。

公开(公告)号：US06333817B1

公开(公告)日：2001-12-25

申请号：US09664057

申请日：2000-09-18

申请人： Keiji Kashima ,  Fumihiro Arakawa

发明人： Keiji Kashima ,  Fumihiro Arakawa

IPC分类号： G02B502

CPC分类号： G02B6/0031 ,  G02B5/021 ,  G02B5/0215 ,  G02B5/0226 ,  G02B5/0231 ,  G02B5/0242 ,  G02B5/0278 ,  G02B5/045 ,  G02B6/0038 ,  G02B6/0041 ,  G02B6/0043 ,  G02B6/0046 ,  G02B6/005 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0055 ,  G02B6/0071 ,  G02F1/133606 ,  G02F2001/133607

摘要： In an optical sheet 10 having a prism surface 16 formed by providing unit prisms 14 on the upper surface of a transparent base material 12, a coating layer 18 is provided on the reverse surface of the transparent base material opposite to the prism surface 16, spherical beads 20 are arranged projecting from the surface of the coating layer 18 by 1 to 10 &mgr;m in height, and the coating layer 18 is brought into contact with the flat and smooth surface 22A of the light-transmissive material 22 through the spherical beads 20 which are put between them. The spherical beads are 1 &mgr;m or less in half bandwidth of the distribution of particle diameters and are made uniform in height projecting from the coating layer 18.

摘要翻译： 在具有通过在透明基材12的上表面上设置单位棱镜14而形成的棱镜面16的光学片10中，在与棱镜面16相反的透明基材的背面上设置有涂层18， 珠子20从涂层18的表面高度突出1至10微米，并且涂层18通过球形珠20与透光材料22的平坦光滑表面22A接触， 在他们之间。 球形珠在粒径分布的半带宽中为1μm或更小，并且从涂层18突出的高度均匀。