专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2003270722A Rear projection type image display apparatus 有权
标题翻译：后投影类型图像显示设备
公开(公告)号：JP2003270722A
公开(公告)日：2003-09-25
申请号：JP2003016871
申请日：2003-01-27
申请人： Hitachi Advanced Digital Inc , Hitachi Ltd , 株式会社日立アドバンストデジタル , 株式会社日立製作所
发明人： YOSHIKAWA HIROKI , YOSHIDA TAKAHIKO , WADA KIYOSHI , MORI SHIGERU , OSAWA ATSUO , HIRATA KOJI , OISHI SATORU , WATANABE TOSHIMITSU , SUSO HIROSHI , YOKOYAMA YOSHIMASA , TAKAHASHI AKIRA , KOMATSU YASUHIKO , MATSUMURA YOSHINORI , NAKAGAWA KAZUNARI , OZEKI KOUSUKE , FURUI MAKI , KUBO NAOKO , SHIMADA TSUTOMU
IPC分类号： G02F1/13 , G02F1/1335 , G03B21/00 , G03B21/10 , G03B21/14 , G03B21/16 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To provide a rear projection type display apparatus which requires only a narrow space for installation and can be installed on a wall surface without a gap when being installed along the wall and can be received deep into a corner as the whole when being installed at the corner. SOLUTION: In the rear projection type image display apparatus, the projection distance of a projection lens is shortened, and a density of mounting of parts relating an optical system and an electric system is made higher. Furthermore, a width of a rear portion of a housing is reduced rearwards at any portion from the upper portion to the lower portion thereof, and the lower portion of a back cover is depressed inwards. COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种后投影式显示装置，其仅需要较小的安装空间，并且当沿壁安装时可以在没有间隙的情况下安装在壁表面上并且可以被深入地接收到角落中作为整个安装在拐角处。解决方案：在后投影型图像显示装置中，投影透镜的投影距离缩短，并且使与光学系统和电气系统相关的部件的安装密度更高。此外，壳体的后部的宽度在从上部到下部的任何部分处向后减小，并且后盖的下部向内凹陷。版权所有（C）2003，JPO

2. 发明专利

JP2009169196A Multidisplay device 审中-公开
标题翻译：多媒体设备
公开(公告)号：JP2009169196A
公开(公告)日：2009-07-30
申请号：JP2008008642
申请日：2008-01-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KANBARA TAKASHI , EBIHARA MASAYUKI , ABE FUKUOKU , SATO TADASHI , NAKAGAWA KAZUNARI
IPC分类号： G09G3/36 , G02F1/133 , G02F1/1347 , G09F9/40 , G09G3/20 , G09G3/34
摘要： PROBLEM TO BE SOLVED: To improve image quality by controlling the brightness of a light source, in a multidisplay system device arrayed with a plurality of displays.
SOLUTION: Each image display part constituting this multidisplay device has a backlight unit having the plurality of light sources for forming an image on the image display part, and a luminous energy regulating means for regulating the brightnesses of the light sources in the backlight unit. The lightness of each backlight is individually regulated by the luminous energy regulating means. Further, the light source included in each backlight is controlled in response to an arrangement position thereof.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过控制光源的亮度，在具有多个显示器的多显示器系统装置中提高图像质量。构成该多显示装置的各图像显示部具有背光单元，该背光单元具有用于在图像显示部上形成图像的多个光源，以及用于调节背光源中的光源亮度的发光量调节单元单元。每个背光的亮度由光能调节装置分别调节。此外，响应于其布置位置来控制包括在每个背光中的光源。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2003029345A Transmission type screen and back projection image display using the same 有权
标题翻译：传输类型屏幕和使用相同的背投影图像显示
公开(公告)号：JP2003029345A
公开(公告)日：2003-01-29
申请号：JP2001217809
申请日：2001-07-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： INAOKA SHIGERU , NAKAYAMA YOJI , NAKAGAWA KAZUNARI , IMAFUKU DAISUKE
IPC分类号： G02B3/00 , G02B3/08 , G03B21/00 , G03B21/10 , G03B21/14 , G03B21/62
摘要： PROBLEM TO BE SOLVED: To reduce a focus unsharpness of at least a transmission screen used for projection image display.
SOLUTION: The transmission screen 3 used for projection image display is constituted by arranging a plurality of convex lenses 4 each having a spherical surface or aspherical surface shape on a light incident surface and arranging a Fresnel lens 5 at a light exit surface, to form the transmission type screen 4 of single sheet constitution. The inside of the screen 3 or the front surface of the Fresnel lens 5 is provided with a light absorption layer 6 exclusive of light transmission range segments 7.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：减少至少用于投影图像显示的传输屏幕的聚焦不清晰度。解决方案：用于投影图像显示的透射屏幕3通过在光入射面上布置多个具有球面或非球面形状的凸透镜而构成，并将菲涅尔透镜5布置在光出射面处，形成单张纸张传输型屏幕4。屏幕3的内部或菲涅尔透镜5的前表面设置有不包括光传输范围段7的光吸收层6。

4. 发明专利

JP2003066330A Projection lens unit and back projection type picture display device using the same 审中-公开
标题翻译：投影镜头单元和背投影类型图像显示设备使用相同
公开(公告)号：JP2003066330A
公开(公告)日：2003-03-05
申请号：JP2001259114
申请日：2001-08-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IKEDA HIDEHIRO , HIRATA KOJI , NAKAGAWA KAZUNARI
IPC分类号： G02B13/16 , G02B13/18 , G03B21/10 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To realize a projection lens unit realizing a short focal distance (wide angle), high focus and high contrast at low cost as a projection lens unit used for a back projection type picture display device.
SOLUTION: A lens positioned on the screen side of a power lens 3 is formed in such a shape that its central part has positive refractive power and its circumferential part has negative refractive power, and a lens of the power lens positioned on the video generating source side is formed in meniscus shape that its central part is biconvex and its circumferential part turns its concave surface to the video generating source side, whereby excellent focusing performance is realized in a short projection distance (wide angle) even in the case of using an inexpensive low refractive index glass lens.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：作为用于背投式图像显示装置的投影透镜单元，实现低成本地实现短焦距（广角），高对焦和高对比度的投影透镜单元。解决方案：位于功率透镜3的屏幕侧的透镜形成为其中心部具有正折光力并且其圆周部具有负屈光力的形状，并且功率透镜的透镜位于视频产生源侧部形成为弯月面形状，其中心部分是双凸面，其周向部分将其凹面转向视频产生源侧，由此即使在使用廉价的情况下也能在短投影距离（广角）下实现优异的聚焦性能低折射率玻璃透镜。

5. 发明专利

JP2003005294A Fresnel screen and backproject type display device using the same 有权
标题翻译： FRESNEL屏幕和使用相同的背光显示设备
公开(公告)号：JP2003005294A
公开(公告)日：2003-01-08
申请号：JP2001187480
申请日：2001-06-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MORI SHIGERU , NAKAYAMA YOJI , INAOKA SHIGERU , IMAFUKU DAISUKE , NAKAGAWA KAZUNARI
IPC分类号： G02B3/08 , G03B21/00 , G03B21/62
摘要： PROBLEM TO BE SOLVED: To reduce a brightness difference between the upper and lower ends of a picture on a screen even when a user sees the picture on the screen by keeping a low posture. SOLUTION: The distance between conjugate points in a first region (C zone) including a vertical line passing through the center of this Fresnel screen 1 in the same circumference of a Fresnel lens 2 is made shorter than that in a second region (A zone) including a horizontal line passing through the center. For example, the first region is set in a range of ±45 degrees based on the vertical line, and the distance between the conjugate points in the first region is set from 2,000 mm to 6,000 mm; the second region is set in a range of ±30 degrees based on the horizontal line, and the distance between the conjugate points in the second region is set to be from 20,000 mm to 30,000 mm.
摘要翻译：要解决的问题：即使当用户通过保持低姿态来看到屏幕上的图像时，也可以降低屏幕上的图像的上下端之间的亮度差异。解决方案：在菲涅尔透镜2的同一圆周上包括通过菲涅耳屏1的中心的垂直线的第一区域（C区）中的共轭点之间的距离比在第二区域（A区）包括穿过中心的水平线。例如，基于垂直线将第一区域设定在±45度的范围内，将第一区域中的共轭点之间的距离设定为2000mm〜6000mm; 第二区域基于水平线设置在±30度的范围内，并且将第二区域中的共轭点之间的距离设定为20,000mm至30,000mm。

6. 发明专利

JP2009180988A Multi-video display system 审中-公开
标题翻译：多视频显示系统
公开(公告)号：JP2009180988A
公开(公告)日：2009-08-13
申请号：JP2008020571
申请日：2008-01-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ICHIKAWA KIMIFUNE , NAKAGAWA KAZUNARI , SATO TADASHI
IPC分类号： G09F9/40 , G09G5/00 , H04N5/63 , H04N5/64 , H04N5/645 , H04N5/66 , H04N7/18
摘要： PROBLEM TO BE SOLVED: To solve the problem that, in a conventional multi-video display system, wide installation space and large installation cost are required, because it is necessary to incorporate each of unified display devices in a framed mount so that a display screen may be arranged in a predetermined position, and thereby, adequate strength is required for the mount in order to support weight of each of the display devices, and rear space (behind the display devices) and a means for moving such as a ladder are required for a user to connect the display devices together and adjust image quality. SOLUTION: Each of the display devices is divided into a panel unit and the other section. The panel unit is composed of, for example, a display panel section and display panel control circuit section. The other section is placed in a lower position where a user easily operates and adjusts an operation panel by separating it from a large screen display section which is composed of the plurality of panel units. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题为了解决在现有的多视频显示系统中需要宽的安装空间和大的安装成本的问题，由于需要将统一的显示装置中的每一个结合到框架安装件中，使得可以将显示屏布置在预定位置，从而为了支撑每个显示装置和后部空间（显示装置后面）的重量，以及用于移动的装置，诸如用户需要梯形图将显示设备连接在一起并调整图像质量。
解决方案：每个显示设备分为面板单元和另一部分。面板单元由例如显示面板部分和显示面板控制电路部分组成。另一部分放置在用户容易操作的下部位置，并且通过将操作面板与由多个面板单元组成的大屏幕显示部分隔开来来调整操作面板。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2003015034A Lens device for projection, and backproject type image display device using the same 审中-公开
标题翻译：用于投影的镜头装置和使用其的背投式图像显示装置
公开(公告)号：JP2003015034A
公开(公告)日：2003-01-15
申请号：JP2002048934
申请日：2002-02-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IMAFUKU DAISUKE , OGURA NAOYUKI , NAKAGAWA KAZUNARI , HIRATA KOJI , IKEDA HIDEHIRO , KATO SHUJI
IPC分类号： G02B13/24 , G02B13/08 , G02B13/18 , G03B21/00 , G03B21/10 , G03B21/14 , H04N5/74
CPC分类号： G02B13/08
摘要： PROBLEM TO BE SOLVED: To provide a lens device for projection used for a backproject type image display device which has a large-diameter ratio (low F-number), a high focus, a high contrast, a low distortion and a wide angle of view at a lower cost.
SOLUTION: In the lens device for the projection which magnifies and projects an original image displayed on a video generation source on a screen, a first lens group 1 which has refractive power and the shape of a central part including a convex meniscus lens at the screen side, a second lens group 2 which has the shape of a central part including a lens having a convex lens surface at the video generation source side, a third lens group 3 including a biconvex lens having positive refractive power, a fourth lens group 4 which has positive refractive power and has the shape of a central part including a lens having a convex lens surface at the video generation source side, and a fifth lens group 5 which has a concave lens surface and including a lens having negative refractive power at the screen side is arranged in order from the screen side. Distortion aberrations are reduced by disposing an entrance pupil 12 so as to be positioned between the incidence and emission surfaces of a power lens 3.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种用于背投影型图像显示装置的投影用透镜装置，其具有大直径比（低F值），高焦距，高对比度，低失真和广角以较低的成本查看。解决方案：在用于投影的投影透镜装置中，在屏幕上放大并投射显示在视频产生源上的原始图像，具有屈光力的第一透镜组1和在屏幕上包括凸起弯月透镜的中心部分的形状具有包括在视频产生源侧具有凸透镜表面的透镜的中心部分的形状的第二透镜组2，包括具有正折光力的双凸透镜的第三透镜组3，第四透镜组4 具有正的屈光力并且具有包括在视频产生源侧具有凸透镜表面的透镜的中心部分的形状，以及具有凹透镜表面并且在屏幕上具有负折射力的透镜的第五透镜组5 侧从屏幕侧顺序排列。通过设置入射光瞳12以便位于功率透镜3的入射表面和发射表面之间来减小失真像差。

8. 发明专利

JP2002341451A TRANSMISSION TYPE SCREEN AND PROJECTION TYPE IMAGE DISPLAY DEVICE USING THE SCREEN 失效
公开(公告)号：JP2002341451A
公开(公告)日：2002-11-27
申请号：JP2001143174
申请日：2001-05-14
申请人： HITACHI LTD
发明人： INAOKA SHIGERU , MORI SHIGERU , NAKAGAWA KAZUNARI , IMAFUKU DAISUKE , NAKAYAMA YOJI
IPC分类号： G02B3/00 , G02B3/06 , G02B3/08 , G03B21/00 , G03B21/62 , G03B21/625
摘要： PROBLEM TO BE SOLVED: To reduce moire generated by a virtual diagonal group connecting the intersecting points of a vertical lenticular lens and a horizontal lenticular lens and a Fresnel lens in a transmission type screen. SOLUTION: When the pitches of the vertical lenticular lens, the Fresnel lens and the horizontal lenticular lens are respectively set up to Pv , Pf and Ph and Pk =1/ (1/Ph ) +(1/Pv ) } is defined, the decimal places of Pk /Pf is about 0.3 to 0.7 when Pk /Pf >1 and the decimal places of Pf /Pk is about 0.3 to 0.7 when Pf /Pk >1.

9. 发明专利

JPH11183885A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH11183885A
公开(公告)日：1999-07-09
申请号：JP26174898
申请日：1998-09-16
申请人： HITACHI LTD
发明人： OTSUKA YASUO , SHIRAISHI MIKIO , NUMATA TORU , HIRATA KOJI , OGURA NAOYUKI , INAOKA SHIGERU , NAKAGAWA KAZUNARI , MORI SHIGERU , TANITSU MASAHIKO
IPC分类号： G02F1/13 , G02F1/1333 , G03B21/16
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal display device capable of attaining the improvement of luminance of a projected image and the suppression of temperature rise of a liquid crystal(LC) display element and polarizing elements and formed by compact and simple constitution. SOLUTION: The CR display device is provided with an LC display element 2 for converting light from a light source into an optical signal expressing an image corresponding to a drive signal, a projecting optical system for projecting the optical signal to a target to be projected, an exit side polarizing element 3b, a holding member 6 for fixing and holding respective elements together with the element 2, a cooling medium 5 for cooling, an incident side polarizing element 3a, and a 1st optical element 1a constituting the projecting optical system. Either one of the elements 3a, 2, the element 1a and the member 6 constitute space between the elements 2, 1a. The space is filled with the cooling medium 5.

10. 发明专利

JPH06181559A PROJECTOR FOR PROJECTION TELEVISION 失效
公开(公告)号：JPH06181559A
公开(公告)日：1994-06-28
申请号：JP33410892
申请日：1992-12-15
申请人： HITACHI LTD
发明人： INAOKA SHIGERU , NAKAGAWA KAZUNARI
IPC分类号： G02B7/02 , H01J31/10 , H04N5/74
摘要： PURPOSE:To improve packing between a projection tube and a bracket and to reduce the leakage of a cooling solution due to the inserting and holding of an foreign substance such as dust. CONSTITUTION:The projection tube 1 and a concave lens 3 are fixed on a bracket 2 consisting of a material having high heat transmissivity respectively through packing 10, 11 and optically connected to each other. A cooling solution is sealed in a cooling room 2a of a bracket 2 arranged between the tube 1 and the lens 3. The packing 10 has grooves on both the sides of a bracket contact face and a projection tube contact face and consists of an enlarging part to be engaged with a ring-like groove of the bracket 2 and a flat flange part formed so as to be continued to the enlarging part.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式