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1. 发明专利

JP2012133081A Screen and projection system 有权
标题翻译：屏幕和投影系统
公开(公告)号：JP2012133081A
公开(公告)日：2012-07-12
申请号：JP2010284265
申请日：2010-12-21
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 , SHINDO HIROYUKI , HASHIZUME TOSHIAKI , UCHIDA TATSUO , SUZUKI YOSHITO , KATAGIRI BAKU
IPC分类号： G03B21/14 , G02B5/08 , G02B5/09 , G02F1/13 , G03B21/00 , G03B21/60
摘要： PROBLEM TO BE SOLVED: To provide a screen capable of displaying a projected image suppressing image unevenness by reflecting projection light in an appropriately dispersed state even when the projection light is locally made incident with a large inclination angle, and further to provide a projection system using the screen.SOLUTION: In a light reflecting layer 2, since a plurality of prism sections 2a determining inclination angles of individual reflecting surfaces PS of a plurality of light reflecting sections PP and having sawtooth shapes as viewed in a cross-section view are disposed on a substrate 1 in a concentric circular arc shape so as to be corresponding to projection light PL made incident, even the projection light PL being made incident with a large inclination angle can be folded as reflected light RL to a front surface side by using a principal surface 1a of the substrate 1 as reference, and a value of an incident angle γ to a light control layer 3 can be a value within a first angular region ω. Accordingly, the reflected light RL passing through the light control layer 3 is emitted in an appropriately dispersed state and can display a projected image suppressing image unevenness.
摘要翻译：要解决的问题：即使当投影光局部地以大的倾斜角入射时，提供一种能够通过将投射光反射在适当分散的状态下来显示抑制图像不均匀性的屏幕，并且还提供投影系统使用屏幕。解决方案：在光反射层2中，由多个棱镜部分2a确定多个光反射部分PP的各个反射表面PS的倾斜角度，并且在横截面视图中看到具有锯齿形状的棱镜部分2a设置在即使以大倾斜角入射的投射光PL，即使入射的投影光PL也能够对应于同时圆弧形状的基板1，可以通过使用主体将反射光RL折射到前表面侧基板1的表面1a作为参考，并且与光控制层3的入射角γ的值可以是第一角度范围ω内的值。因此，通过光控制层3的反射光RL以适当的分散状态被发射，并且可以显示投影图像抑制图像不均匀性。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2012226237A Reflective front screen 有权
标题翻译：反光幕
公开(公告)号：JP2012226237A
公开(公告)日：2012-11-15
申请号：JP2011095823
申请日：2011-04-22
申请人： Tohoku Univ , Seiko Epson Corp , 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： UCHIDA TATSUO , SUZUKI YOSHITO , KATAGIRI BAKU , HASHIZUME TOSHIAKI , SHINDO HIROYUKI , ARAKAWA OSAMU
IPC分类号： G03B21/60 , G02B5/02 , G02B5/08
CPC分类号： G03B21/60 , G03B21/602
摘要： PROBLEM TO BE SOLVED: To narrow a region where a display image is disturbed by external light existing in the region, on the front side of a reflective front screen, and to more widen a region where external light existing in the region has no bad influence on the display image, in a room where the screen is installed.SOLUTION: Inclinations θa1 to θan of mirror formation areas 8 relative to a screen normal are made different so that the inclination angles of the mirror formation areas 8 nearer to a projector are larger than those of the mirror formation areas 8 farther from the projector within a cross section orthogonal to the mirror formation areas 8 in a screen surface.
摘要翻译：要解决的问题：为了缩小显示图像被存在于该区域中的外部光，在反射前屏幕的前侧上而被干扰的区域，并且更加扩大存在于该区域中的外部光的区域在屏幕安装的房间中对显示图像没有不良影响。反射镜形成区域8相对于屏幕法线的倾角θa1〜θan不同，使得反射镜形成区域8更靠近投影仪的倾斜角度大于镜面形成区域8的倾斜角度投影仪在与屏幕表面中的镜形成区域8正交的横截面内。版权所有（C）2013，JPO＆INPIT

3. 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

4. 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

5. 发明专利

JP2013120360A Display device 有权
标题翻译：显示设备
公开(公告)号：JP2013120360A
公开(公告)日：2013-06-17
申请号：JP2011269413
申请日：2011-12-08
申请人： Sharp Corp , シャープ株式会社 , Tohoku Univ , 国立大学法人東北大学
发明人： UCHIDA TATSUO , SUZUKI YOSHITO , KAWAKAMI TORU , SEKIYA KAZUO , NISHIZAWA MASAHIRO , ISHINABE TAKAHIRO , KATAGIRI BAKU , EBARA KATSUNORI , HASHIMOTO YOSHIHIRO , ITOU YASUTAKA , ISHII YUTAKA
IPC分类号： G02F1/13357 , F21S2/00 , F21Y101/02 , G02F1/1335 , G09F9/00
摘要： PROBLEM TO BE SOLVED: To realize a liquid crystal display device having a thin thickness and high image quality of a display image while maintaining high light-use efficiency.SOLUTION: A liquid crystal display device includes a liquid crystal display panel 3, and a plurality of light sources 4. A plurality of slant surfaces 5b and the plurality of light sources 4 are provided at predetermined intervals so that light beams having wavelength ranges different from each other, emitted from the light sources 4 are led to picture elements different from each other in respective pixels of the liquid crystal display panel 3 through the slant surfaces 5b and an MLA 9, respectively, and respective shortest distances from the one certain light source 4 to the MLA 9 positioned right above the respective slant surfaces 5b through the respective slant surfaces 5b are within predetermined ranges, respectively.
摘要翻译：要解决的问题：为了实现具有薄的厚度和显示图像的高图像质量的液晶显示装置，同时保持高的光利用效率。解决方案：液晶显示装置包括液晶显示面板3和多个光源4.多个倾斜表面5b和多个光源4以预定间隔设置，使得具有波长的光束通过倾斜表面5b和MLA9，从光源4发射的范围分别被引导到液晶显示面板3的各个像素中的各个像素彼此不同的图像元素，并且距离一个的最短距离位于相应倾斜表面5b正上方通过相应倾斜表面5b的MLA 9的某些光源4分别在预定范围内。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2005331631A Screen for rear projection display 审中-公开
标题翻译：屏幕用于后期投影显示
公开(公告)号：JP2005331631A
公开(公告)日：2005-12-02
申请号：JP2004148647
申请日：2004-05-19
申请人： Tohoku Univ , 国立大学法人東北大学
发明人： KATAGIRI BAKU , ISHINABE TAKAHIRO , UCHIDA TATSUO
IPC分类号： G02B5/02 , G03B21/62
摘要： PROBLEM TO BE SOLVED: To provide a screen for rear projection display which is constituted of a simple structure capable of preventing back scattering and moire from occurring on complicated air boundaries, where the brightness of a picture plane is hardly changed over a wide observation angle range and on which a high-quality picture is displayed.
SOLUTION: The screen for rear projection display 30 is composed by superposing a plurality of diffusing films 2 to diffuse incident light from a predetermined angle area within the predetermined angle area, and constituted so that the diffusion angle areas 7 of the laminated diffusion films may be superposed. It is desirable to set the intensity of the entire light diffused after it is made incident on the superposed diffusion angle areas to ≥5% of the intensity of diffused light of the entire laminated diffusion films.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种背投显示屏幕，其由能够防止在复杂空气边界上发生的背散射和莫尔条纹的简单结构构成，其中图像平面的亮度几乎不变化观察角度范围，并显示高质量图像。解决方案：用于背投显示器30的屏幕是通过叠加多个漫射膜2来构成的，以将预定角度区域内的预定角度区域的入射光扩散，并且构成为使得层叠扩散部的扩散角区域7 电影可能重叠。期望将其入射到叠加扩散角区域之后的漫射光的整体强度设定为整个层叠扩散膜的扩散光强度的≥5％。版权所有（C）2006，JPO＆NCIPI

7. 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

8. 发明专利

JP2007171523A Screen for projection display 审中-公开
标题翻译：投影显示画面
公开(公告)号：JP2007171523A
公开(公告)日：2007-07-05
申请号：JP2005368685
申请日：2005-12-21
申请人： Tohoku Univ , 国立大学法人東北大学
发明人： UCHIDA TATSUO , KATAGIRI BAKU
IPC分类号： G03B21/62
摘要： PROBLEM TO BE SOLVED: To provide a screen for a projection display which can provide both of a wide diffusion angle area and a uniform diffusion light intensity distribution characteristic and can display an image of high quality in which a brightness change due to an observation angle is reduced.
SOLUTION: The screen for the projection display is constituted of superposing a plurality of films (diffusion films 2) for diffusing incident light from a specific angle area into the specific angle area, where the diffusion angle areas of laminated films are overlapped, the diffusion light intensity distribution characteristic of projector light is uniform, preferably one or more minimum value points are included in intra-face luminance distribution in the whole screen surface, and the values of all the minimum value points are ≥70% of the value of the nearest maximum value point adjacent to the minimum value points.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够提供宽扩散角区域和均匀扩散光强度分布特性的投影显示器的屏幕，并且可以显示高质量的图像，其中由于观察角度减小。＆lt; P＆gt;解决方案：用于投影显示的屏幕由将用于将来自特定角度区域的入射光扩散到层叠膜的扩散角面积重叠的特定角度区域中的多个膜（扩散膜2）投影机光的漫射光强度分布特性是均匀的，优选在整个屏幕表面的面内亮度分布中包括一个或多个最小值点，并且所有最小值点的值都是与最小值点相邻的最近的最大值点。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2007017813A Three-dimensional linear spatial imaging optical system and projection optical system using the same 审中-公开
标题翻译：三维线性空间成像光学系统和投影光学系统
公开(公告)号：JP2007017813A
公开(公告)日：2007-01-25
申请号：JP2005200969
申请日：2005-07-08
申请人： Tohoku Techno Brains Corp , Tohoku Univ , 国立大学法人東北大学 , 株式会社東北テクノブレインズ
发明人： UCHIDA TATSUO , KAWAKAMI TORU , KATAGIRI BAKU , KURATOMI YUHEI
IPC分类号： G02B13/00 , G02B17/08 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To provide a three-dimensional linear spatial imaging optical system capable of yielding a formed image without nonlinear strain to an object even when an incident angle on an imaging surface is made large, and a projection optical system using the same.
SOLUTION: Provided are the three-dimensional linear spatial imaging optical system 5 which forms the non-deformed image of a three-dimensional object (object grating 3) or the deformed image (imaging grating 4) thereof uniformly elongated and contracted and/or sheared in respective axial directions of three orthogonal axes in a separate space, and the projection optical system which uses the three-dimensional linear spatial imaging optical system, and where a picture display device 12 is arranged to be tilted to an optical axis 6 as the three-dimensional object therefor and a screen 13 is arranged nearly at the imaging position.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供即使在成像面上的入射角变大的情况下，能够产生对物体没有非线性应变的形成图像的三维线性空间成像光学系统，以及使用一样。解决方案：提供了形成三维物体（物体光栅3）或其变形图像（成像光栅4）的未变形图像的三维线性空间成像光学系统5，其均匀地伸长和收缩， /或在单独的空间中在三个正交轴的各轴向上剪切，以及使用三维线性空间成像光学系统的投影光学系统，其中图像显示装置12布置成向光轴6倾斜作为其三维物体，屏幕13几乎位于成像位置。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2006084563A Screen for projection display 有权
标题翻译：投影显示画面
公开(公告)号：JP2006084563A
公开(公告)日：2006-03-30
申请号：JP2004267170
申请日：2004-09-14
申请人： Tohoku Techno Brains Corp , Tohoku Univ , 国立大学法人東北大学 , 株式会社東北テクノブレインズ
发明人： UCHIDA TATSUO , KATAGIRI BAKU , KAWAKAMI TORU , ISHINABE TAKAHIRO
IPC分类号： G02B5/02 , G03B21/62
摘要： PROBLEM TO BE SOLVED: To realize a diffusion film, of which the intensity distribution characteristic of diffused light is arbitrarily controllable and of which the diffusion angle area does not change to incident light from a specified angle area, and to provide a high-quality projection display system that uses the diffusion film as a screen.
SOLUTION: The screen for the projection display is composed of the diffusion film, having a structure where a plurality of layers 1
1 and 1
2 forming a plurality of step index type optical waveguides, while keeping different refractive indexes between the adjacent layers form stripes being arranged in one direction on a film surface and are extended in the direction of a layer tilting angle distributed in almost top hat shape within a predetermined angle range with respect to the film thickness direction, or structure where a plurality of layers 2
1 forming optical waveguides, while keeping refractive index distribution exhibiting light-condensing ability in the layer thickness direction at a part in the film thickness direction are extended in the film thickness direction or in a direction tilted from the film thickness direction with layer length distributed in almost top hat shape within the predetermined range, or a structure obtained by combining the above structure.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了实现扩散光的强度分布特性是任意可控的并且漫射角度面积不会对来自特定角度区域的入射光改变，并且提供高的扩散膜使用扩散膜作为屏幕的质量投影显示系统。＆lt; P＆gt;解决方案：用于投影显示的屏幕由扩散膜组成，具有多个层1 1 和1 2 的结构，形成多个步骤在相邻层之间保持不同折射率的折射率型光波导形成在膜表面上沿一个方向布置的条纹，并且在相对于相对于第一层的光学波导的预定角度范围内以几乎顶帽形状分布的层倾斜角度的方向延伸在形成光波导的多个层2 1 的膜厚度方向或结构上，同时保持在膜厚度方向的一部分处具有在层厚度方向上呈现聚光能力的折射率分布在膜厚度方向上或沿着膜厚度方向倾斜的方向，层厚分布在预定范围内的几何顶帽形状，或通过组合上述结构而获得的结构结构体。版权所有（C）2006，JPO＆NCIPI

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