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1. 发明授权

US06426812B2 Hologram color filter, and its fabrication method 失效
标题翻译：全息彩色滤光片及其制作方法
公开(公告)号：US06426812B2
公开(公告)日：2002-07-30
申请号：US09152511
申请日：1998-09-14
申请人： Nobuhiko Ichikawa , Tsuyoshi Hotta , Kenji Ueda
发明人： Nobuhiko Ichikawa , Tsuyoshi Hotta , Kenji Ueda
IPC分类号： G02B532
CPC分类号： G02B5/203 , G02B5/32 , G02B7/003 , G02B27/32 , G02B27/62 , G02F1/133621 , G02F2001/133623 , G03H1/0248 , G03H1/202 , G03H1/26 , G03H2001/207 , G03H2001/2271 , G03H2001/2615 , G03H2223/19
摘要： The present invention provides a hologram color filter having a drastically decreased dependence of diffraction efficiency on wavelength and well corrected for a color balance among the three colors R, G and B comprising an array of converging element holograms 5′, each of which enables white light incident at a given angle &thgr; with respect to a normal line of a hologram recorded surface thereof to be spectroscopically separated by wavelength dispersion in a direction substantially along the hologram recorded surface, wherein the converging element holograms 5′ have each a plurality of hologram pieces 51 and 52 superposed on each other or multi-recorded therein, which, with respect to the white light 3 incident at the given angle &thgr;, have substantially identical spatial wavelength distributions of wavelength dispersion and different peak wavelengths of diffraction efficiency.
摘要翻译：本发明提供一种全息图彩色滤光片，其具有大大降低的衍射效率对波长的依赖性，并且对于包括会聚元件全息图5'的阵列的三种颜色R，G和B之间的色彩平衡良好地校正，相对于其全息图记录表面的法线在给定角度θ处的入射在基本沿着全息图记录表面的方向上被波长色散光谱分离，其中会聚元件全息图5'具有多个全息片51 相对于以给定角度θ入射的白光3具有基本相同的波长色散的空间波长分布和衍射效率的不同峰值波长的空间波长分布。

2. 发明授权

US06473144B1 Liquid crystal display apparatus and liquid crystal projection display apparatus which employ hologram color filter 失效
标题翻译：液晶显示装置和采用全息彩色滤光片的液晶投影显示装置
公开(公告)号：US06473144B1
公开(公告)日：2002-10-29
申请号：US08965047
申请日：1997-11-05
申请人： Nobuhiko Ichikawa , Tsuyoshi Hotta
发明人： Nobuhiko Ichikawa , Tsuyoshi Hotta
IPC分类号： F02F11335
CPC分类号： G02F1/133621
摘要： A liquid crystal display apparatus and liquid crystal projection display apparatus, which employ a hologram color filter, and which are designed so that the illuminating light utilization efficiency is improved to a considerable extent, and that a color image can be faithfully displayed with excellent color reproducibility without uneven color or other similar problem. A color liquid crystal display apparatus (11) has a hologram (5), which diffractively disperses incident light so as to emanate light rays in different wavelength regions at a predetermined spatial period, as a color filter, and a liquid crystal display device (6). The display apparatus (11) is illuminated by white parallel back light (3) from an illuminator (14). A displayed image which is modulated in the color liquid crystal display apparatus (11) is passed through a field lens, which is disposed in the vicinity of the display apparatus (11), and formed as an enlarged image on a screen (19) for display through a projection lens (18). A short-wavelength cut-off filter whose transmittance for a wavelength not longer than 430 nm is not higher than 5% is disposed at a position in an optical path extending from a lamp (15) to the screen (19), thereby preventing crosstalk of colors which might otherwise occur when light which should be incident on a pixel assigned to display blue undesirably enters a pixel which is adjacent to the pixel for blue, and thus making it possible to display a faithful color image.
摘要翻译：一种液晶显示装置和液晶投影显示装置，其采用全息图彩色滤光片，其设计使得照明光利用效率得到相当大的改善，并且可以忠实地显示彩色图像，具有优异的颜色再现性没有不均匀的颜色或其他类似的问题。彩色液晶显示装置（11）具有全息图（5），其以预定的空间周期将不同波长区域的光线衍射的入射光衍射为散射光，作为滤色器，以及液晶显示装置（6））。显示装置（11）由来自照明器（14）的白色平行背光（3）照射。在彩色液晶显示装置（11）中调制的显示图像通过设置在显示装置（11）附近的场透镜，并在屏幕（19）上形成为放大图像，用于通过投影透镜（18）显示。在从灯（15）延伸到屏幕（19）的光路中的位置配置有波长不大于430nm的透射率不高于5％的短波截止滤波器，从而防止串扰当应该入射到分配给显示蓝色的像素的光不期望地进入与蓝色的像素相邻的像素时，可能会发生的颜色，从而使得可以显示忠实的彩色图像。

3. 发明授权

US5737040A Liquid crystal display apparatus and liquid crystal projection display apparatus which employ hologram color filter 失效
公开(公告)号：US5737040A
公开(公告)日：1998-04-07
申请号：US500757
申请日：1995-07-11
申请人： Nobuhiko Ichikawa , Tsuyoshi Hotta
发明人： Nobuhiko Ichikawa , Tsuyoshi Hotta
IPC分类号： G02F1/13357 , G02F1/1335 , G02B5/32
CPC分类号： G02F1/133621
摘要： A liquid crystal display apparatus and liquid crystal projection display apparatus, which employ a hologram color filter, and which are designed so that the illuminating light utilization efficiency is improved to a considerable extent, and that a color image can be faithfully displayed with excellent color reproducibility without uneven color or other similar problem. A color liquid crystal display apparatus (11) has a hologram (5), which diffractively disperses incident light so as to emanate light rays in different wavelength regions at a predetermined spatial period, as a color filter, and a liquid crystal display device (6). The display apparatus (11) is illuminated by white parallel back light (3) from an illuminator (14). A displayed image which is modulated in the color liquid crystal display apparatus (11) is passed through a field lens, which is disposed in the vicinity of the display apparatus (11), and formed as an enlarged image on a screen (19) for display through a projection lens (18). A short-wavelength cut-off filter whose transmittance for a wavelength not longer than 430 nm is not higher than 5% is disposed at a position in an optical path extending from a lamp (15) to the screen (19), thereby preventing crosstalk of colors which might otherwise occur when light which should be incident on a pixel assigned to display blue undesirably enters a pixel which is adjacent to the pixel for blue, and thus making it possible to display a faithful color image.

4. 发明授权

US06842272B2 Hologram plate and its fabrication process 有权
公开(公告)号：US06842272B2
公开(公告)日：2005-01-11
申请号：US10800678
申请日：2004-03-16
申请人： Keiko Sekine , Hiroshi Kishimoto , Masaki Katsumata , Yoichi Higuchi , Nobuhiko Ichikawa , Tadatsugu Onuma
发明人： Keiko Sekine , Hiroshi Kishimoto , Masaki Katsumata , Yoichi Higuchi , Nobuhiko Ichikawa , Tadatsugu Onuma
IPC分类号： G03H1/20 , G03H1/30 , G02B5/32
CPC分类号： G03H1/202 , G02B5/203 , G02B5/32 , G03H1/0252 , G03H1/0256 , G03H1/30 , G03H2001/306 , G03H2240/53 , Y10S359/90
摘要： The invention provides a hologram plate which is used with the double-focus replication process, and which is integrated with a spacer to impart marring resistance thereto, and is integrated with a light absorbing layer to allow zero-order light and first-order light to have substantially the same intensity. This hologram plate 42 comprises an array of collective element holograms for diffracting parallel light incident thereon at a specific wavelength and a specific incident angle in such a way that the light is converged onto a specific focal length position. The hologram plate 42 is a multilayer structure made up of a first transparent substrate 31, a hologram layer 32, an adhesive layer 33 and a second transparent substrate 41. The second transparent substrate 42 defines a surface in contact with a hologram photosensitive material 53 during hologram replication.

5. 发明申请

US20110027474A1 Reflecting screen, method of manufacturing the same, and reflection-type projection system 审中-公开
标题翻译：反射屏，其制造方法和反射型投影系统
公开(公告)号：US20110027474A1
公开(公告)日：2011-02-03
申请号：US12923754
申请日：2010-10-06
申请人： Nobuhiko Ichikawa , Hiroshi Sekiguchi , Jun Horikoshi , Akihide Sano , Takeshi Ogawa
发明人： Nobuhiko Ichikawa , Hiroshi Sekiguchi , Jun Horikoshi , Akihide Sano , Takeshi Ogawa
IPC分类号： B05D5/06
CPC分类号： G03B21/60 , G02B5/045
摘要： A reflecting screen 10 comprises a base portion 11, light transmitting portions 12 provided on the base portion 11, and light absorbing portions 14. Each of the light transmitting portions 12 comprises a unit prism shape 12 which has a generally wedge-like shape with a larger width on the image source side than its width on the rear face side and is arranged along a screen face 10a. A reflecting layer 13 adapted to reflect the image light, which has been transmitted through the unit prism shapes 12, is provided on the rear face side of each unit prism shape 12. Each unit prism shape 12 extends linearly, and each light absorbing portion 14 is arranged between each adjacent pair of the unit prism shapes 12.
摘要翻译：反射屏幕10包括基部11，设置在基部11上的光透射部分12和光吸收部分14.每个透光部分12包括单位棱镜形状12，其具有大致楔形形状，其具有图像源侧的宽度大于其背面侧的宽度，并且沿着屏幕面10a配置。在每个单位棱镜形状12的背面侧设置有适于反射已经透过单位棱镜形状12的图像光的反射层13.每个单位棱镜形状12线性地延伸，并且每个光吸收部分14 布置在每个相邻的单位棱镜形状12之间。

6. 发明授权

US06906452B2 Electroluminescent display device with substrate having regions with different refractive indexes 有权
$Electroluminescent display device with substrate having regions with different refractive indexes$
标题翻译：具有基板的电致发光显示装置具有不同折射率的区域
公开(公告)号：US06906452B2
公开(公告)日：2005-06-14
申请号：US10394652
申请日：2003-03-24
申请人： Nobuhiko Ichikawa
发明人： Nobuhiko Ichikawa
IPC分类号： H01L51/50 , H01L51/52 , H05B33/02 , H05B33/22 , H05B33/28 , H01J5/16 , H01J1/62
CPC分类号： H01L51/5271 , H01L33/56 , H01L33/60 , H01L51/52 , H01L51/524 , H01L51/5259 , H01L51/5281 , H05B33/22 , H05B33/28
摘要： The present invention provides an electroluminescent display which can efficiently radiate light emitted from an electroluminescent layer to a viewer side and, at the same time, can reduce a deterioration in contrast of a displayed image caused by external light. The electroluminescent display includes a light transparent substrate and an electroluminescent layer provided on the light-transparent substrate. The electroluminescent layer includes at least a transparent electrode, an organic luminescent layer, and a cathode. Two or more regions with different refractive indexes are provided within said light-transparent substrate.
摘要翻译：本发明提供一种电致发光显示器，其可以有效地将从电致发光层发射的光发射到观察者侧，并且同时可以减少由外部光引起的显示图像的对比度的劣化。电致发光显示器包括透光基板和设置在透光基板上的电致发光层。电致发光层至少包括透明电极，有机发光层和阴极。在所述透光性基板内设置两个以上具有不同折射率的区域。

7. 发明授权

US06366369B2 Transmission hologram fabrication process 有权
标题翻译：传输全息图制作工艺
公开(公告)号：US06366369B2
公开(公告)日：2002-04-02
申请号：US09864454
申请日：2001-05-25
申请人： Nobuhiko Ichikawa , Masachika Watanabe
发明人： Nobuhiko Ichikawa , Masachika Watanabe
IPC分类号： G03H120
CPC分类号： G02B5/203 , G03H1/041 , G03H1/202 , G03H2001/0415 , G03H2001/0419 , G03H2001/0439 , G03H2001/2234 , G03H2001/226 , G03H2223/19 , G03H2250/33 , G03H2250/42
摘要： The invention relates to a process capable of fabricating a variety of transmission holograms having a simple structure, a wide visible range and a large area and comprising the first stage of recording the wavefront to be finally reconstructed in the form of the first hologram that is a reflection hologram with a wide visible range, the second stage of using the first hologram to record the second hologram that is a combined reflection and transmission hologram, and the third stage of recording in the third hologram photosensitive material only a transmission hologram for reconstructing only the wavefront recorded in the second hologram and desired to be reconstructed.
摘要翻译：本发明涉及能够制造具有简单结构，宽的可见范围和大面积的各种透射全息图的方法，并且包括以第一全息图的形式记录最后重建的波前的第一阶段具有宽可见范围的反射全息图，使用第一全息图的第二阶段记录作为组合反射和透射全息图的第二全息图，以及在第三全息图感光材料中记录的第三阶段仅仅是用于仅重构波前记录在第二全息图中并且希望被重构。

8. 发明授权

US5506701A Hologram color filter, liquid crystal display device using the same, and fabrication process of hologram color filter 失效
标题翻译：全息彩色滤光片，使用其的液晶显示装置及全息彩色滤光片的制作工艺
公开(公告)号：US5506701A
公开(公告)日：1996-04-09
申请号：US187549
申请日：1994-01-28
申请人： Nobuhiko Ichikawa
发明人： Nobuhiko Ichikawa
IPC分类号： G02B5/20 , G02B5/32 , G02F1/1335 , G02F1/13357
CPC分类号： G02B5/1885 , G02B5/201 , G02B5/203 , G02B5/32 , G02F1/133621 , G02F1/133514 , G03H2001/0439 , G03H2001/0478
摘要： The present invention has for its object to spectrally diffract white light by a hologram for the illumination of a given position, thereby achieving some considerable improvement in the efficiency of utilization of backlight for liquid crystal display, etc., and makes use of a difference in the angle of diffraction of a hologram 5 depending on wavelength to diffract the wavelength components of the colors displayed into liquid crystal cells R, G and B of a liquid crystal display element 10 located at the back side of the hologram 5, thereby achieving some considerable improvement in the efficiency of utilization of backlight. As the hologram 5, an array form of converging unit holograms with the efficiency of diffraction independent, or less dependent, on wavelength, or other equivalent hologram arrangement may be used.
摘要翻译：本发明的目的是通过用于照射给定位置的全息图对白光进行光谱衍射，从而实现液晶显示器等的背光的利用效率的一些显着提高，并且利用全息图5的衍射角取决于波长，以衍射位于全息图5背面的液晶显示元件10的液晶单元R，G和B中显示的颜色的波长分量，从而实现了相当大的提高背光的利用效率。作为全息图5，可以使用具有与衍射无关的效率或更小依赖于波长或其他等效全息图布置的会聚单位全息图的阵列形式。

9. 发明授权

US4957980A Polyester resin composition and hollow molded article thereof 失效
标题翻译：聚酯树脂组合物及其中空成型体
公开(公告)号：US4957980A
公开(公告)日：1990-09-18
申请号：US229463
申请日：1988-08-08
申请人： Shigeo Kobayashi , Toshio Hiramatsu , Katsumasa Yamamoto , Nobuhiko Ichikawa
发明人： Shigeo Kobayashi , Toshio Hiramatsu , Katsumasa Yamamoto , Nobuhiko Ichikawa
IPC分类号： C08L67/00 , C08L77/00
CPC分类号： C08L67/00 , C08L77/00 , Y10S525/931 , Y10T428/1352
摘要： A polyester resin composition having excellent gas barrier properties and transparency which comprises 100 parts by weight of a thermoplastic polyester resin (A), 1 to 100 parts by weight of a polyamide resin having metaxylylene group (B) and 0.01 to 50 parts by weight of a compatibilizing agent (C); and a polyester hollow molded article in the form of a single or multi-layered hollow molded article, wherein at least one of the layers is made of the above polyester resin composition.
摘要翻译：具有优异的阻气性和透明性的聚酯树脂组合物，其包含100重量份的热塑性聚酯树脂（A），1至100重量份的具有对二甲苯基（B）的聚酰胺树脂和0.01至50重量份的相容剂（C）; 以及单层或多层中空成型体形式的聚酯中空成型制品，其中至少一层由上述聚酯树脂组合物制成。

10. 发明授权

US08891169B2 Optical sheet and display device 有权
标题翻译：光学片和显示装置
公开(公告)号：US08891169B2
公开(公告)日：2014-11-18
申请号：US13063986
申请日：2009-09-17
申请人： Tsuyoshi Kashiwagi , Tetsuya Sadahiro , Hiroyuki Amemiya , Nobuhiko Ichikawa
发明人： Tsuyoshi Kashiwagi , Tetsuya Sadahiro , Hiroyuki Amemiya , Nobuhiko Ichikawa
IPC分类号： G02B5/04 , G02B5/02 , B32B27/36 , G02B5/00 , G03B21/62
CPC分类号： G02B5/045 , B32B3/18 , B32B5/142 , B32B7/12 , B32B27/08 , B32B27/16 , B32B27/28 , B32B27/302 , B32B27/308 , B32B27/36 , B32B27/38 , B32B2264/00 , B32B2307/40 , B32B2307/402 , B32B2307/418 , B32B2307/732 , B32B2457/20 , B32B2457/202 , G02B5/003 , G02B5/0242 , G02B5/0278 , G03B21/62
摘要： Provided is an optical sheet hardly causing a change in color depending on the observation angle of an image, the optical sheet including a plurality of layers, at least one of the layers being an optical functional sheet layer including prisms arranged in parallel along a surface of the optical sheet such that light is transmittable; and light-absorbing portions arranged in parallel between the prisms in a way to absorb light, at least another one of the layers being a light diffusing material-containing layer with optical diffusing particles dispersed in a base material, and the optical sheet satisfying a relation of NdK
摘要翻译：本发明提供一种不影响图像的观察角度的颜色变化的光学片，所述光学片包括多个层，所述光学片包括多个层，所述光学片中的至少一层是包括沿着该光学片使得光可透射; 以及以吸收光的方式平行布置在所述棱镜之间的光吸收部，所述层中的至少另一个是具有分散在基材中的光漫射粒子的光漫射材料含有层，并且所述光学片满足关系的NdK

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