公开(公告)号：US07440186B2

公开(公告)日：2008-10-21

申请号：US11281819

申请日：2005-11-18

申请人： Hiroki Yoshikawa ,  Tetsu Ohishi ,  Daisuke Imafuku ,  Koji Hirata

发明人： Hiroki Yoshikawa ,  Tetsu Ohishi ,  Daisuke Imafuku ,  Koji Hirata

IPC分类号： G03B21/56 ,  G02B3/08

CPC分类号： G03B21/10 ,  G03B21/625

摘要： The present invention provides a technology suitable for shortening a depth of a image display apparatus while obtaining a picture of high quality. According to the invention, a total reflection prism portion is provided on a side of a Fresnel lens sheet toward a picture source. The total reflection prism portion reflects an incident light to a direction toward an optic axial center of the Fresnel lens sheet to have the same outgoing. On the other hand, a first refractive prism portion, by which light of a predetermined incident angle or less is refracted to outgo to a direction along an optical axis of the Fresnel lens sheet, and a second refractive prism portion, by which light reflected to the direction toward the optic axial center of the Fresnel lens sheet is changed to the direction along the optical axis.

摘要翻译： 本发明提供一种适于在获得高品质图像的同时缩短图像显示装置的深度的技术。 根据本发明，在菲涅尔透镜片的朝向图像源的一侧设置全反射棱镜部分。 全反射棱镜部分将入射光反射到朝向菲涅耳透镜片的光学轴向中心的方向以具有相同的出射。 另一方面，第一折射棱镜部分，通过该第一折射棱镜部分，预定入射角或更小的光被折射到沿着菲涅尔透镜片的光轴的方向偏离，并且第二折射棱镜部分被反射到 朝向菲涅尔透镜片的光轴中心的方向改变为沿着光轴的方向。

公开(公告)号：US20080204868A1

公开(公告)日：2008-08-28

申请号：US12103241

申请日：2008-04-15

申请人： Hiroki YOSHIKAWA ,  Tetsu Ohishi ,  Koji Hirata ,  Daisuke Imafuku

发明人： Hiroki YOSHIKAWA ,  Tetsu Ohishi ,  Koji Hirata ,  Daisuke Imafuku

IPC分类号： G03B21/60

CPC分类号： G03B21/625

摘要： An image display apparatus includes an image generation source, optics for projecting in an enlarged form the image generated by the image generation source, and a transmissive screen for displaying the image projected from said optics. The transmissive screen includes a Fresnel lens sheet disposed at an image generation source side, and a diffusing sheet disposed at an image-watching side in order to diffuse image light at least in a horizontal direction of the screen. The Fresnel lens sheet has a plurality of entrance-side prisms formed at the image generation source side, and a plurality of exit-side prisms formed at the image-watching side, and the Fresnel lens sheet emits lights in a first direction and a second direction. The first direction is almost parallel to a central axis of the Fresnel lens sheet, and the second direction extends toward the central axis.

摘要翻译： 图像显示装置包括图像生成源，用于以放大的形式投影由图像生成源生成的图像的光学器件和用于显示从所述光学器件投影的图像的透射屏幕。 透射屏幕包括设置在图像产生源侧的菲涅尔透镜片和设置在图像观看侧的扩散片，以至少在屏幕的水平方向上扩散图像光。 菲涅尔透镜片具有形成在图像产生源侧的多个入射侧棱镜和形成在图像观看侧的多个出射侧棱镜，并且菲涅耳透镜片在第一方向上发光，而第二 方向。 第一方向几乎平行于菲涅尔透镜片的中心轴线，第二方向朝向中心轴线延伸。

公开(公告)号：US20070052341A1

公开(公告)日：2007-03-08

申请号：US11452373

申请日：2006-06-14

申请人： Daisuke Imafuku ,  Hiroki Yoshikawa ,  Tetsu Ohishi

发明人： Daisuke Imafuku ,  Hiroki Yoshikawa ,  Tetsu Ohishi

IPC分类号： H01J1/62

CPC分类号： H05B33/22 ,  G09G3/3413 ,  G09G2310/024 ,  G09G2320/0626 ,  G09G2360/145 ,  H04N9/3155 ,  H04N9/3182 ,  H04N9/3194

摘要： The invention provides a technology suited to suppress decrease in the brightness of an image while preventing reduction in the contrast of the image caused by external light coming from the outside (from the viewer side of the image) of a screen. An image display surface (screen) of a projection type display device is provided with a front protective sheet including an optical filter member for absorbing specific wavelengths in the external light, especially among peak wavelengths of a three-wavelength fluorescent lamp. Moreover, LED's of three colors are used as a light source for forming an image. At least one of these LED's emits a light of a different wavelength from a peak wavelength that the front protective sheet absorbs. By this configuration, it is possible to prevent reduction in the contrast of an image caused by external light without decreasing the brightness of the image display device.

摘要翻译： 本发明提供了一种适合于抑制图像的亮度降低的技术，同时防止从外部（来自图像的观看者侧）的外部光引起的图像的对比度降低。 投影型显示装置的图像显示面（屏幕）设置有前保护片，其包括用于吸收外部光中的特定波长的滤光器构件，特别是在三波长荧光灯的峰值波长中。 此外，三种颜色的LED用作形成图像的光源。 这些LED中的至少一个发射与前保护片吸收的峰值波长不同波长的光。 通过这种配置，可以防止由外部光引起的图像的对比度降低，而不会降低图像显示装置的亮度。

公开(公告)号：US20070002281A1

公开(公告)日：2007-01-04

申请号：US11450677

申请日：2006-06-09

申请人： Hiroki Yoshikawa ,  Takanori Hisada ,  Tetsu Ohishi ,  Koji Hirata ,  Daisuke Imafuku

发明人： Hiroki Yoshikawa ,  Takanori Hisada ,  Tetsu Ohishi ,  Koji Hirata ,  Daisuke Imafuku

IPC分类号： G03B21/14

CPC分类号： G03B21/10 ,  G03B21/625

摘要： A fresnel lens sheet has a fresnel center in the vicinity of a lower end, and includes first and second fresnel lens portions respectively formed into concentrically circular shapes. The first fresnel lens portion exists inside a reference circumference, and the second fresnel lens portion exists outside the reference circumference. A conjugate point distance of the second fresnel lens portion is shorter than a conjugate point distance of the first fresnel lens portion. The reference circumference passes through vicinities of cross points between a horizontal centerline, which halves the fresnel lens sheet into upper and lower portions, and left and right ends of the fresnel lens sheet.

摘要翻译： 菲涅尔透镜片在下端附近具有菲涅耳中心，并且包括分别形成为同心圆形的第一和第二菲涅耳透镜部。 第一菲涅耳透镜部分存在于参考圆周内，第二菲涅尔透镜部分存在于参考圆周外。 第二菲涅尔透镜部分的共轭点距离比第一菲涅尔透镜部分的共轭点距离短。 参考圆周穿过菲涅耳透镜片的水平中心线之间的交叉点附近，该中心线将菲涅尔透镜片半部分分成上下部分，以及左右两端。

公开(公告)号：US20060227299A1

公开(公告)日：2006-10-12

申请号：US11258384

申请日：2005-10-26

申请人： Takanori Hisada ,  Hiroki Yoshikawa ,  Tetsu Ohishi ,  Masahiko Yatsu ,  Koji Hirata

发明人： Takanori Hisada ,  Hiroki Yoshikawa ,  Tetsu Ohishi ,  Masahiko Yatsu ,  Koji Hirata

IPC分类号： G03B21/28

CPC分类号： G03B21/10 ,  G02B13/16 ,  G02B27/0025

摘要： In the image display device, a projection lens including a plurality of lenses for enlarging an image from an image display element is constituted of a front group and a rear group. The rear group includes at least one free-shaped-surface lens including a surface having a rotationally asymmetrical shape. Furthermore, the device includes at least one free-shaped-surface mirror having a rotationally asymmetrical reflection surface. Accordingly, a set can be formed to be compact while correcting trapezoidal distortion and aberration.

摘要翻译： 在图像显示装置中，包括用于从图像显示元件放大图像的多个透镜的投影透镜由前组和后组构成。 后组包括至少一个具有旋转不对称形状的表面的自由形状的透镜。 此外，该装置包括至少一个具有旋转不对称反射表面的自由形状的反射镜。 因此，可以在校正梯形失真和像差的同时形成一个组合。

公开(公告)号：US20060050039A1

公开(公告)日：2006-03-09

申请号：US11213144

申请日：2005-08-25

申请人： Toshimitsu Watanabe ,  Go Uchida ,  Masaki Nishikawa ,  Tetsu Ohishi

发明人： Toshimitsu Watanabe ,  Go Uchida ,  Masaki Nishikawa ,  Tetsu Ohishi

IPC分类号： G09G3/36 ,  G09G3/10

CPC分类号： G09G3/22 ,  G09G2300/0452

摘要： In an FED (Field Emission Display), lowering of a color temperature is suppressed which is caused by that light emission luminance of respective color phosphors is different from each other so as to achieve a better white balance. A display apparatus is equipped with a cathode substrate containing a plurality of electron emitter elements, and an anode substrate. The anode substrate is arranged opposite to the cathode substrate, and contains three colors of red, green, blue phosphors which are excited by electrons emitted from the electron emitter elements so as to emit light. Then, an area of either the red phosphor or an area of the blue phosphor is made smaller than an area of the green phosphor.

摘要翻译： 在FED（场发射显示）中，由于各种彩色荧光体的发光亮度彼此不同而导致的色温的降低被抑制，以达到更好的白平衡。 显示装置配备有包含多个电子发射体元件的阴极基板和阳极基板。 阳极基板与阴极基板相对配置，并且包含由电子发射器元件发射的电子激发以发光的三种颜色的红色，绿色，蓝色荧光体。 然后，使红色荧光体的区域或蓝色荧光体的面积比绿色荧光体的面积小。

公开(公告)号：US20050189866A1

公开(公告)日：2005-09-01

申请号：US11046437

申请日：2005-01-27

申请人： Yoshie Kodera ,  Tetsu Ohishi ,  Toshimitsu Watanabe ,  Mutsumi Suzuki ,  Masakazu Sagawa ,  Akinori Maeda

发明人： Yoshie Kodera ,  Tetsu Ohishi ,  Toshimitsu Watanabe ,  Mutsumi Suzuki ,  Masakazu Sagawa ,  Akinori Maeda

IPC分类号： H01J29/87 ,  H01J29/02 ,  H01J31/12 ,  H01J1/62 ,  H01J63/04

CPC分类号： H01J29/028 ,  H01J31/127 ,  H01J2329/8625 ,  H01J2329/8655 ,  H01J2329/866

摘要： A flat panel display apparatus includes a rear substrate in which a number of cold cathode devices for emitting electrons are formed on an insulative substrate; a display substrate in which phosphors are arranged in a matrix shape on a translucent substrate; supporting members which are arranged between the rear substrate and the display substrate and maintain intervals between them; and frame members, in which a space surrounded by the rear substrate, the display substrate, and the frame members is set to a vacuum atmosphere. It then becomes possible to provide an apparatus in which there is no remarkable change between a scanning line resistance value in the scanning line direction in a portion with spacers and that in a portion without a spacer, a luminance variation can be reduced, and the apparatus has a conduction connection structure of the spacers and the scanning lines.

摘要翻译： 平板显示装置包括：背面基板，在绝缘基板上形成有多个用于发射电子的冷阴极器件; 荧光体在透光性基板上以矩阵状排列的显示基板; 支撑构件，其布置在后基板和显示基板之间并且保持它们之间的间隔; 框架构件，其中将由后基板，显示基板和框架构件包围的空间设定为真空气氛。 可以提供一种装置，其中在具有间隔物的部分中的扫描线方向上的扫描线电阻值与没有间隔物的部分中的扫描线电阻值之间没有显着变化，可以降低亮度变化，并且该装置 具有间隔物和扫描线的导通连接结构。

公开(公告)号：US06910775B2

公开(公告)日：2005-06-28

申请号：US10346380

申请日：2003-01-15

申请人： Taro Imahase ,  Satoshi Ouchi ,  Tetsu Ohishi ,  Tomohiro Miyoshi

发明人： Taro Imahase ,  Satoshi Ouchi ,  Tetsu Ohishi ,  Tomohiro Miyoshi

IPC分类号： G02B5/30 ,  G02F1/13 ,  G02F1/13357 ,  G03B21/00 ,  G03B21/14 ,  H04N9/31

CPC分类号： H04N9/3105 ,  H04N9/3167

摘要： A projection-type display apparatus is improved in contrast by an overlap between a band of light to be cut off by a notch filter and a band of light wavelengths to which the polarization converting efficiencies of first and second specific-wavelength converter elements are 50%, respectively.

摘要翻译： 通过由陷波滤波器切断的光束与第一和第二特定波长转换器元件的偏振转换效率为50％的光波长带之间的重叠来改善投影型显示装置， ， 分别。

公开(公告)号：US06462794B1

公开(公告)日：2002-10-08

申请号：US09414481

申请日：1999-10-08

申请人： Hiroki Yoshikawa ,  Tetsu Ohishi ,  Hideo Tanide ,  Takesuke Maruyama ,  Goro Ohnishi ,  Takashi Iwata ,  Takeshi Igarashi

发明人： Hiroki Yoshikawa ,  Tetsu Ohishi ,  Hideo Tanide ,  Takesuke Maruyama ,  Goro Ohnishi ,  Takashi Iwata ,  Takeshi Igarashi

IPC分类号： G02F11335

CPC分类号： G02B3/0062 ,  G02B3/0031 ,  G02B3/0068 ,  G02B3/0075 ,  G02F1/133526 ,  H04N5/7441 ,  H04N9/3141 ,  H04N9/3147

摘要： An enlarging unit comprises a concave Fresnel lens warped convexly toward an image forming unit side, the image forming unit is held between a light transmissible support plate warped convexly toward the image forming unit side and the enlarging unit warped convexly toward the image forming unit side, and peripheries of the support plate and the enlarging unit are fixed or semi-fixed. Thereby, deformation caused when the incident side and emission side micro-lens arrays are molded and deformation due to environmental temperature and humidity change are corrected, and both components are always maintained in close contact.

摘要翻译： 放大单元包括朝向图像形成单元侧凸出翘曲的凹形菲涅尔透镜，图像形成单元保持在朝向图像形成单元侧凸形弯曲的透光性支撑板和朝向图像形成单元侧凸起的扩大单元之间， 并且支撑板和放大单元的周边是固定的或半固定的。 由此，修正了入射侧和发射侧微透镜阵列成型引起的变形，并且由于环境温度和湿度变化引起的变形，并且两者都始终保持紧密接触。

公开(公告)号：US06201516B1

公开(公告)日：2001-03-13

申请号：US08951293

申请日：1997-10-16

申请人： Hideo Tanide ,  Tetsu Ohishi ,  Hiroki Yoshikawa

发明人： Hideo Tanide ,  Tetsu Ohishi ,  Hiroki Yoshikawa

IPC分类号： G09G500

CPC分类号： G09F19/18 ,  A63J25/00 ,  A63J2005/002 ,  H04N9/3147

摘要： In a description and drawings of the present application disclosed are, as the invention, (1) a projector for projecting an optimum image face having a convex configuration at a side of the projector, (2) a projecting system provided with the projector and a translucent screen with a substantially spherical configuration on which an image from the projector is formed, (3) a system for sensation provided with the projecting system, a seat at which a viewer is seated, a motion drive device for displacing the seat, a motion control device for controlling operation of the motion drive device, and an image control device for controlling an image projected by the projector while instructing the motion drive device to displace the seat in accordance with a change in the image, and (4) a method of manufacturing a screen provided with a light diffusing layer forming step of warming and softening a transparent thermoplastic resin sheet including a particle of a light diffusion material and pressing a light transmitting layer with a convex configuration against the thermoplastic resin sheet to closely fix thereto.

摘要翻译： 在所公开的本申请的描述和附图中，作为本发明，（1）一种投影仪，用于在投影仪的一侧投影具有凸形结构的最佳图像面，（2）设置有投影仪的投影系统和 具有基本上球形的半透明屏幕，其上形成有来自投影仪的图像，（3）设置有投影系统的感觉系统，观察者坐下的座椅，用于移动座椅的运动驱动装置，运动 用于控制运动驱动装置的操作的控制装置，以及图像控制装置，用于在指示运动驱动装置根据图像的变化来移动座椅时控制由投影仪投影的图像，以及（4） 制造具有光漫射层形成步骤的屏幕，所述光扩散层形成步骤使包含光漫射材料的颗粒的透明热塑性树脂片材变暖并软化并压制 将具有凸形结构的透光层抵靠热塑性树脂片紧密固定。