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1. 发明专利

JP2013161034A Image display device, image display method, and program 审中-公开
标题翻译：图像显示装置，图像显示方法和程序
公开(公告)号：JP2013161034A
公开(公告)日：2013-08-19
申请号：JP2012025009
申请日：2012-02-08
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社 , Tohoku Univ , 国立大学法人東北大学
发明人： OZAWA SHIRO , YAO YASUHIRO , SAEGUSA TOMOFUMI , UCHIDA TATSUO , SUZUKI YOSHITO , KANO MITSURU , KAWAKAMI TORU , NASU SENSHI , ISHINABE TAKAHIRO
IPC分类号： G03B21/14 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To reduce distortion of an image generated by observing at an observation angle not facing a display screen, in a multidirectional image display device.SOLUTION: An image display device includes: a multidirectional image display unit for displaying image signals output from a plurality of imaging devices for imaging a subject at predetermined imaging angles different from each other, to a common display screen so as to observe the imaging signals only in an observation area corresponding to the imaging angles of the imaging devices having output the imaging signals; and a correction unit for correcting visual distortion of an image generated according to an observation angle to the display screen in observing the image, for each of the plurality of image signals.
摘要翻译：要解决的问题：在多向图像显示装置中，通过在不面向显示屏的观察角度观察产生的图像的失真。解决方案：图像显示装置包括：多向图像显示单元，用于显示从多个成像装置，用于将预定成像角度彼此不同的被摄体成像到公共显示屏幕，以便仅在与输出成像信号的成像装置的成像角度对应的观察区域中观察成像信号; 以及校正单元，用于针对所述多个图像信号中的每一个，校正在观察图像时根据与所述显示屏幕的观察角度生成的图像的视觉失真。

2. 发明专利

JP2012068468A Screen for projection display 有权
标题翻译：投影显示画面
公开(公告)号：JP2012068468A
公开(公告)日：2012-04-05
申请号：JP2010213802
申请日：2010-09-24
申请人： Nippon Telegr & Teleph Corp , Tohoku Univ , 国立大学法人東北大学 , 日本電信電話株式会社
发明人： TAKADA HIDEAKI , DATE MUNEKAZU , UCHIDA TATSUO , KATAGIRI BAKU , SUZUKI YOSHITO
IPC分类号： G03B21/62 , G02B5/02 , G03B21/00 , G03B21/14
摘要： PROBLEM TO BE SOLVED: To provide a screen for a projection display which displays a different image depending on an observation angle and ensures image quality.SOLUTION: A screen for a projection display comprises a plurality of laminated diffusion films 2, which form a refractive index distribution structure inside thereof and diffuses light incident from a specified incident angle region to a specified diffusion angle region, and the laminated diffusion films respectively have different incident angle regions and different diffusion angle regions.
摘要翻译：要解决的问题：提供用于根据观察角度显示不同图像并确保图像质量的投影显示器的屏幕。解决方案：用于投影显示的屏幕包括多个叠层扩散膜2，其在其内部形成折射率分布结构，并将从特定入射角区域入射的光扩散到指定的扩散角区域，并且层叠扩散膜分别具有不同的入射角区域和不同的扩散角区域。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2012237798A Multidirectional projection system and multidirectional projection method 有权
标题翻译：多向投影系统和多向投影方法
公开(公告)号：JP2012237798A
公开(公告)日：2012-12-06
申请号：JP2011105148
申请日：2011-05-10
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社 , Tohoku Univ , 国立大学法人東北大学
发明人： ISO KAZUYUKI , OZAWA SHIRO , YAO YASUHIRO , UCHIDA TATSUO , SUZUKI YOSHITO , KAWAKAMI TORU , KATAGIRI BAKU
IPC分类号： G03B21/10 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To provide a multidirectional system capable of projecting, in a plurality of directions, different videos according to the corresponding directions without limiting a projection angle, shortening a projection distance and making the entire system compact.SOLUTION: A multidirectional projection system 101 comprises: a screen 1; and a plurality of projectors 2 arranged behind the screen 1 and configured to project video light beam K3 spread over a predetermined range onto a screen 1 at different angles. The screen 1 emits the video light beam K3 of each projector 2 forward as diffusion light 51 of the same diffusion angle range for each of the projector 2. The diffusion light of at least two of the projectors 2 is superposed, thereby composing a video in a specific direction based on the at least two diffusion light beams K3.
摘要翻译：要解决的问题：提供一种多方向系统，其能够在多个方向上根据相应的方向投影不同的视频，而不会限制投影角度，缩短投影距离并使整个系统变得紧凑。解决方案：多向投影系统101包括：屏幕1; 以及布置在屏幕1后面并被配置为将以预定范围分散的视频光束K3以不同角度投影到屏幕1上的多个投影仪2。屏幕1将每个投影仪2的视频光束K3向前发射，作为对于投影仪2的扩散角范围相同的扩散角范围的扩散光51.至少两个投影仪2的扩散光被叠加，从而构成视频基于至少两个漫射光束K3的特定方向。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2014191128A Multi-directional video display device and a multi-directional image display method 有权
标题翻译：多方向视频显示设备和多方向视频显示方法
公开(公告)号：JP2014191128A
公开(公告)日：2014-10-06
申请号：JP2013065358
申请日：2013-03-27
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社 , Tohoku Univ , 国立大学法人東北大学
发明人： OZAWA SHIRO , TAKADA HIDEAKI , DATE MUNEKAZU , YAO YASUHIRO , SAEGUSA TOMOFUMI , UCHIDA TATSUO , SUZUKI YOSHITO , KANO MITSURU , KAWAKAMI TORU , NASU SENSHI , ISHINABE TAKAHIRO , SHINOI MUTSUMI
IPC分类号： G03B21/10 , G03B21/60 , G03B21/62 , G09G5/00 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To provide a multi-directional video display device that can reduce an area unsuitable for observation and solve the problem in which: an observable area becomes farther as the size of a screen increases.SOLUTION: A multi-directional video display device includes a screen on which a video is displayed, and a plurality of projectors that are arranged behind the screen and project video light relative to the screen at a projection angle different from each other. The screen includes captured video angle changing means for changing the angle of the video light so that parts of adjacent observable areas of the video light from the respective projectors are brought into contact with each other.
摘要翻译：要解决的问题：提供一种可以减少不适合观察的区域的多方向视频显示装置，并解决以下问题：随着屏幕尺寸的增加，可观察区域变得更远。解决方案：多方向视频显示设备包括显示视频的屏幕和布置在屏幕后面的多个投影仪，并以相互不同的投影角相对于屏幕投影视频光。屏幕包括用于改变视频光的角度的捕获的视频角度改变装置，使得来自各个投影仪的视频光的相邻可观察区域的部分彼此接触。

5. 发明专利

JP2017116824A 反射型スクリーン及び映像表示システム有权
公开(公告)号：JP2017116824A
公开(公告)日：2017-06-29
申请号：JP2015254166
申请日：2015-12-25
申请人：国立大学法人東北大学 , Tohoku Univ
发明人： SUZUKI YOSHITO , KAWAKAMI TORU , EBARA KATSUNORI , SHINOI MUTSUMI
IPC分类号： G03B21/60 , G02B3/08 , G02B5/02 , G03B21/00 , H04N5/74
CPC分类号： G02B3/08 , G02B5/02 , G03B21/00 , G03B21/60 , H04N5/74
摘要：【課題】省電力効果が大きくてしかも高コントラストの表示ができる空間結像アイリス面方式の反射型ディスプレイを大型化するために、可搬性に優れ、かつ、視野領域の拡大もできる反射型スクリーンを提供する。【解決手段】基板5と、基板5の正面側を被覆する層をなし、層の表面形状により面内の左右方向と上下方向とで拡散角度が異なる異方性拡散層9と、基板5の背面側を被覆する層をなし、層の正面側が平面状であり、背面側が、レンズ面6aと非レンズ面6bを備え,背面側に凸となる単位レンズが複数配列したフレネルレンズ面形状であり、フレネルレンズ面形状の面が反射面になるレンズ層6と、レンズ層6の背面側の、レンズ面6a、又は、レンズ面6a及び非レンズ面6bを被覆する層をなし、層が高反射率の金属からなる反射層7と、反射層7の背面側を被覆して、反射層7を保護する保護層8と、保護層8の背面側に貼合した保持板10と、を有する。【選択図】図1

6. 发明专利

JP2013088543A Screen and projection system 有权
标题翻译：屏幕和投影系统
公开(公告)号：JP2013088543A
公开(公告)日：2013-05-13
申请号：JP2011227653
申请日：2011-10-17
申请人： Seiko Epson Corp , セイコーエプソン株式会社 , Tohoku Univ , 国立大学法人東北大学
发明人： ARAKAWA OSAMU , SHINDO HIROYUKI , HASHIZUME TOSHIAKI , UCHIDA TATSUO , SUZUKI YOSHITO , KATAGIRI BAKU
IPC分类号： G03B21/14 , G02B5/02 , G03B21/60
CPC分类号： G03B21/60 , G03B21/28
摘要： PROBLEM TO BE SOLVED: To provide a screen which allows an observation distance to be adjusted while brightness of an image is being maintained, and further to provide a projection system using the screen.SOLUTION: In an optical control layer 3 of a screen 10, a first angle region ω which determines diffusion distribution of reflected light is set to be different for different positions on the screen 10 regarding a control direction D1 for performing diffusion control of light. On account of this, by adjusting diffusion distribution of image light emitted from a surface of the screen 10, in response to a position on the screen 10, to be greatly inclined toward a lower side as the position is closer to an upper end UE side and to be greatly inclined toward an upper side as the position is closer to a lower end BE side, for example, a direction in which the image light is diffused and emitted is set to correspond to a position of an observer assumed with magnitude of an angle range to be diffused remaining 30° without any change in angle, a projection image can be observed while brightness of an image is being maintained and an observation distance L can be adjusted to be shortened.
摘要翻译：要解决的问题：提供一种允许在保持图像的亮度的同时调整观察距离的屏幕，并且还提供使用该屏幕的投影系统。解决方案：在屏幕10的光学控制层3中，确定反射光的扩散分布的第一角度区域ω被设置为对于用于执行扩散控制的控制方向D1的屏幕10上的不同位置不同光。因此，通过调节从屏幕10的表面发射的图像光的扩散分布，响应于屏幕10上的位置，随着位置更靠近上端UE侧而大大向下倾斜并且由于位置更靠近下端BE侧而大致倾向于上侧，例如，将图像光漫射和发射的方向设置为对应于以大小为大小的假设的观察者的位置要扩散的角度范围保持30°而没有任何角度变化，可以在保持图像的亮度并且可以缩短观察距离L的同时观察投影图像。版权所有（C）2013，JPO＆INPIT

7. 发明专利

JP2012247646A Image display device and screen used for the same 审中-公开
标题翻译：图像显示装置和用于其的屏幕
公开(公告)号：JP2012247646A
公开(公告)日：2012-12-13
申请号：JP2011119631
申请日：2011-05-27
申请人： Tohoku Univ , 国立大学法人東北大学
发明人： KAWAKAMI TORU , SUZUKI YOSHITO , KATAGIRI BAKU , ISHINABE TAKAHIRO , UCHIDA TATSUO
IPC分类号： G03B21/60 , G02B3/00 , G02B3/06 , G02B27/02 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To display images to persons present in respective diffusion angle ranges from angles corresponding to the diffusion angle ranges, by projecting a plurality of image light beams from respectively different angles to a screen Sc, and diffusing and radiating the image light beams into respectively different diffusion angle ranges.SOLUTION: A plurality of different image light beams are projected to one screen Sc without an overlap nor a gap from directions in an incident angle ranges. The screen Sc diffuses the plurality of projected different image light beams into respectively different directions without an overlap nor a gap in a plurality of diffusion angle ranges, so that a plurality of different images are displayed on the screen Sc toward respectively different directions.
摘要翻译：要解决的问题：通过将来自分别不同角度的多个图像光束投影到屏幕Sc，将相应扩散角范围内的各个角度的图像显示在与扩散角范围相对应的角度上，并且扩散和辐射图像光束分别成为不同的扩散角范围。解决方案：将多个不同的图像光束投射到一个屏幕Sc，而不会与入射角度范围内的重叠或与方向有间隙。屏幕Sc将多个投影的不同图像光束分散到分别不同的方向上，而不会在多个扩散角范围内重叠或间隙，使得多个不同的图像朝向分别不同的方向显示在屏幕Sc上。版权所有（C）2013，JPO＆INPIT

8. 发明专利

JP2012128308A Screen and projection system 有权
标题翻译：屏幕和投影系统
公开(公告)号：JP2012128308A
公开(公告)日：2012-07-05
申请号：JP2010281341
申请日：2010-12-17
申请人： Seiko Epson Corp , Tohoku Univ , セイコーエプソン株式会社 , 国立大学法人東北大学
发明人： ARAKAWA OSAMU , OTA NAOSHI , HASHIZUME TOSHIAKI , UCHIDA TATSUO , SUZUKI YOSHITO , KATAGIRI BAKU
IPC分类号： G03B21/00 , G02B5/02 , G02B5/08 , G03B21/14 , G03B21/60
摘要： PROBLEM TO BE SOLVED: To enable appropriate diffusion in two directions different from each other and project a bright projection image with less unevenness by using a relatively simple structure.SOLUTION: An anisotropic light diffusion layer 4 has a property of diffusing projection light PL and reflection light RL in an X direction, and an optical control layer 3 has a property of diffusing the reflection light RL in a Y direction. In this case, diffusion by the anisotropic light diffusion layer 4 is in a wider range. Thus, a view angle can be widened in the X direction, in particular in the longitudinal direction for an observer EY, in a properly diffused state by using a relatively simple structure. Moreover, because a light reflection layer 2 has light reflection parts PP on a plurality of prism parts 2a having a saw teeth shape in cross-section, a proper diffusion state can be secured and a bright projection image with uneven brightness or illuminance suppressed can be projected by folding back the projection light PL as the reflection light RL having a desired angle surely diffusing it.
摘要翻译：要解决的问题：为了使得能够在彼此不同的两个方向上进行适当的扩散，并且通过使用相对简单的结构投射具有较小不均匀性的明亮的投影图像。解决方案：各向异性光扩散层4具有在X方向上扩散投射光PL和反射光RL的性质，并且光学控制层3具有使反射光RL在Y方向上扩散的性质。在这种情况下，各向异性光扩散层4的扩散在更宽的范围内。因此，通过使用相对简单的结构，能够以适当的扩散状态在X方向，特别是纵观方向上对视角加宽。此外，因为光反射层2在具有锯齿形状的多个棱镜部分2a上具有光反射部分PP，所以可以确保适当的扩散状态，并且可以抑制亮度或照度不均的亮投影图像通过将投影光PL折回作为具有期望角度的反射光RL来确定地扩散它来投射。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2012042518A Reflection type front screen and stereoscopic display system using the same 审中-公开
标题翻译：反射型前视屏和立体显示系统
公开(公告)号：JP2012042518A
公开(公告)日：2012-03-01
申请号：JP2010181103
申请日：2010-08-12
申请人： Tohoku Univ , 国立大学法人東北大学
发明人： KAWAKAMI TORU , SUZUKI YOSHITO , UCHIDA TATSUO
IPC分类号： G03B21/60 , G02B27/22 , G03B21/00 , H04N5/74 , H04N13/04
摘要： PROBLEM TO BE SOLVED: To reduce the cost of a reflection type front screen capable of displaying images of high contrast even in a bright room illumination environment, to suppress external light from the vicinity of a projector, and to enable an angular field of view to be wide.SOLUTION: As to the first problem, a reflection type front screen includes: a total reflection prism sheet 22 in which a plurality of prism elements 24, each of which consists of an incident face t and a total reflection face u and has an apex angle θ, are vertically arranged on the incident side, and an emission surface of which consists of a transparent material 21a without surface shape of a refraction factor of n, and the apex angle θ of the element 24 is equal to or more than sin-1(1/n); a black mask 28 arranged on the emission surface of the sheet 22; and scatter reflection means 32 arranged on the emission surface of the sheet 22. As to the next problem, this is solved by means which actuates the external light suppression function of a lenticular lens with a BM in a transparent angle domain of a diffusion film having the transparent angle domain and a diffusion angle domain.
摘要翻译：要解决的问题：为了降低即使在明亮的室内照明环境中也能够显示高对比度的图像的反射型前屏幕的成本，以抑制来自投影仪附近的外部光，并且能够实现角度场的看法很宽解决方案：关于第一个问题，反射型前屏幕包括：全反射棱镜片22，其中多个棱镜元件24，每个棱镜元件24由入射面t和全反射面u构成，并具有顶角θ垂直设置在入射侧，其发射面由透明材料21a构成，折射率为n的表面形状，元件24的顶角θ等于或大于 SIN-1（1 / N）; 布置在片材22的发射表面上的黑色掩模28; 以及布置在片材22的发射表面上的散射反射装置32.关于下一个问题，这通过在具有扩散膜的透明角域中的BM致动双凸透镜的外部光抑制功能的手段来解决，透明角域和扩散角域。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2009271263A Screen for front projection using one side specular serration reflecting plate, and front projection type display and information processing apparatus using the same 审中-公开
标题翻译：使用单面伺服反射板进行正面投影的画面，使用其前端投影型显示器和信息处理装置
公开(公告)号：JP2009271263A
公开(公告)日：2009-11-19
申请号：JP2008120677
申请日：2008-05-02
申请人： Tohoku Univ , 国立大学法人東北大学
发明人： UCHIDA TATSUO , OIKE MASANOBU , KATAGIRI BAKU , KAWAKAMI TORU , SUZUKI YOSHITO
IPC分类号： G03B21/00 , G02B5/02 , G02B5/08 , G03B21/60
摘要： PROBLEM TO BE SOLVED: To more effectively reflect image light from a front projector on a surface side by a screen, so as to view a more bright image, and further, to more effectively prevent the phenomenon that illumination light at the inside of a chamber or sunlight at the outside of a room are reflected by a screen on the surface thereof, and the visibility of an image is reduced.
SOLUTION: The screen 2a for a front projection using a one side specular serration reflecting plate is formed by: a light diffusion layer 4 having properties that only light made incident from a specified angle region is diffusely transmitted and light made incident from the angle region other than that is made to go straight and is transmitted; a light transmission layer 6 in which areas 8 for mirror-formation having a certain inclination at the backside and areas 10 for mirror-nonformation having an inclination different from that are alternately arranged along the vertical direction, so as to form a face bent into serration, and joined to the backside of the light diffusion layer 4 at the face on the side opposite to the face; and specular reflective films 10, 10 formed every areas 8, 8 for mirror-formation and made of a material having reflectivity.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了更有效地通过屏幕反映来自前面投影仪的表面侧的图像光，以便观看更明亮的图像，并且进一步更有效地防止在内部的照明光的现象房间外的房间或阳光被其表面上的屏幕反射，并且图像的可视性降低。解决方案：使用单面镜面锯齿反射板的前投影用屏幕2a通过以下方式形成：光扩散层4，其特征在于，仅具有从指定角度区域入射的光漫反射，除此之外的角度区域被直线地传送; 光透射层6，其中在后侧具有一定倾斜度的镜面形成区域8和具有不同倾斜度的不透镜的区域10沿着垂直方向交替布置，以形成弯曲成锯齿状的面并且在与面的相反一侧的面接合到光扩散层4的背面; 并且每个区域8,8形成镜面反射膜10,10，用于镜面形成并由具有反射性的材料制成。版权所有（C）2010，JPO＆INPIT

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