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1. 发明专利

JP2009003458A Projector and projection type image display apparatus using the same 有权
标题翻译：投影机和投影型图像显示装置
公开(公告)号：JP2009003458A
公开(公告)日：2009-01-08
申请号：JP2008179706
申请日：2008-07-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HIRATA KOJI , TANITSU MASAHIKO , YAMAZAKI FUTOSHI
IPC分类号： G03B21/10 , G02B27/28 , G03B21/00 , H04N9/31
摘要： PROBLEM TO BE SOLVED: To reduce luminance irregularity and color irregularity and achieve high-contrast at a low cost, in an illumination optical system and a color composition optical system for a projector using three video display elements, and to reduce mis-convergence in an enlarged image displayed on a screen.
SOLUTION: An afocal illumination optical system including a cross-dichroic color separation optics and the color composition optical system are arranged vertically one over another related to the color separation optical system, and a polarized light splitting device and a λ/4 are arranged between the color separation optical system and the video display device. Besides, an optical sensor is arranged outside an effective image display area of a transmission type screen, then, the mis-convergence in the image projected and enlarged on the screen after being displayed by red, green and blue video display device is detected on the basis of the change of the incident light amount incident on the optical sensor, and the driving areas of the video display elements are controlled on the basis of the detection results.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题为了降低亮度不规则性和颜色不均匀性，以低成本实现高对比度，在使用三个视频显示元件的投影仪的照明光学系统和颜色组合光学系统中，在屏幕上显示的放大图像中的会聚。解决方案：包括交叉二色性分色光学元件和色彩组成光学系统的无焦照明光学系统垂直地布置成与分色光学系统相关，偏振光分离装置和λ/ 4是布置在分色光学系统和视频显示装置之间。此外，光传感器被布置在透射型屏幕的有效图像显示区域的外部，然后在由红色，绿色和蓝色视频显示装置显示的投影和放大的图像中的误差收敛在基于检测结果控制入射在光学传感器上的入射光量的变化的基础，以及视频显示元件的驱动区域。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2005284051A Semiconductor light emitting element, light source unit using the same, optical unit and video display device 审中-公开
标题翻译：半导体发光元件，使用相同的光源单元，光学单元和视频显示设备
公开(公告)号：JP2005284051A
公开(公告)日：2005-10-13
申请号：JP2004099206
申请日：2004-03-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAZAKI FUTOSHI , TANITSU MASAHIKO
IPC分类号： G03B21/00 , F21S2/00 , F21V5/00 , G02F1/133 , G03B21/14 , G03B21/20 , G09F9/00 , H04N9/31
CPC分类号： H04N9/315 , G03B21/2073
摘要： PROBLEM TO BE SOLVED: To assure high definition by LED technology in a video display device. SOLUTION: A semiconductor light emitting element with flip chip structure is used as a light source, polarization converted polarizing light beams of white light or each of light beams in R, G, B colors are emitted from the light source. As the semiconductor light emitting element, it is constituted so that a light transmissive substrate or 1/4 wavelength phase differential plate which rotates the polarizing direction and a reflection type polarizing plate which reflects one of the polarizing light beams P, S and transmits the other on the light emitting side of an LED chip light emitting part provided on a reflection electrode, the polarizing direction of the polarizing light beams which the reflection type polarizing plate or the reflection electrode reflects is rotated with the substrate or the 1/4 wavelength phase differential plate, aligned in the polarizing direction of the other polarizing light and the polarizing light is emitted by transmitting the reflection type polarizing plate. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：确保视频显示设备中LED技术的高清晰度。解决方案：使用具有倒装芯片结构的半导体发光元件作为光源，从光源发射白光的偏光转换偏振光或R，G，B颜色的每个光束。作为半导体发光元件，构成为使偏振光方向旋转的透光性基板或1/4波长相位差动板和反射偏振光束P，S之一的透射型另一方的反射型偏振片在设置在反射电极上的LED芯片发光部的发光侧，反射型偏振片或反射电极反射的偏振光的偏振方向与基板或1/4波长相位差通过透射反射型偏振片来发射偏振光的偏振方向的偏振光。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005250059A Light source apparatus and projection type image display apparatus using the same 审中-公开
标题翻译：光源装置和投影型图像显示装置
公开(公告)号：JP2005250059A
公开(公告)日：2005-09-15
申请号：JP2004059591
申请日：2004-03-03
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TANITSU MASAHIKO , YAMAZAKI FUTOSHI
IPC分类号： G02B5/26 , F21S2/00 , G02F1/13357 , G03B21/14
摘要： PROBLEM TO BE SOLVED: To provide light source technology for a projection type display apparatus for displaying a bright image of good color reproducibility. SOLUTION: A light source apparatus has the constitution in which for each of white light emitted from a 1st light source such as a lamp and monochromatic light emitted from a 2nd light source such as a light emitting diode, the incident angle on a compositing means such as a dichroic mirror is varied to vary the wavelength band of a luminous flux emitted from the compositing means. The incident angle is varied by varying the installation angle of the compositing means, the installation angle and the installation position of the 2nd light source, the installation angle and the installation position of a luminous flux converting means for collimating the luminous flux of the monochromatic light emitted from the 2nd light source, and the installation angle of a reflecting means arranged between the compositing means and the 2nd light source and for reflecting the monochromatic light emitted from the 2nd light source. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供用于显示良好的颜色重现性的明亮图像的投影型显示装置的光源技术。解决方案：一种光源装置，其特征在于，对于从诸如灯的第一光源发射的白光和从诸如发光二极管的第二光源发射的单色光中的每一个，对改变诸如分色镜的合成装置以改变从合成装置发射的光通量的波长带。通过改变合成装置的安装角度，第二光源的安装角度和安装位置，安装角度和用于准直单色光的光通量的光束转换装置的安装位置来改变入射角度从所述第二光源发射的反射装置的安装角度和布置在所述合成装置和所述第二光源之间并用于反射从所述第二光源发射的单色光的反射装置的安装角度。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2004317951A Image display device and color separation adjusting method for the same 审中-公开
公开(公告)号：JP2004317951A
公开(公告)日：2004-11-11
申请号：JP2003114479
申请日：2003-04-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIMURA NOBUYUKI , YAMAZAKI FUTOSHI
IPC分类号： G02B27/18 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To provide technology capable of securing color separation property without increasing the number of components, in an image display device using color separation elements.
SOLUTION: In the image display device, a holding part for supporting the end parts of the color separation elements such as dichroic mirrors 10 and 11 is constituted so that the inclination of each color separation surface of each color separation element 7R, 7G, and 7B with reference to the optical axis is made variable. Besides, the holding part for holding the end part of the color separation element and a holding part for holding the end parts of reflection mirrors 12, 13, and 14 for reflecting the color light color-separated by the color separation elements toward a display element are separately constituted so that the inclination angles of the color separation surface of the color separation element and the reflection surface of the reflection mirror with reference to the optical axis are made variable within the range of maintaining the mutual parallelism.
COPYRIGHT: (C)2005,JPO&NCIPI

5. 发明专利

JP2004219500A Projector device 审中-公开
公开(公告)号：JP2004219500A
公开(公告)日：2004-08-05
申请号：JP2003003850
申请日：2003-01-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TANITSU MASAHIKO , YAMAZAKI FUTOSHI
IPC分类号： G02F1/13 , F21S2/00 , F21V7/00 , F21V13/00 , G03B21/00 , G03B21/14
摘要： PROBLEM TO BE SOLVED: To provide a projector device realizing the high efficiency of a reflector.
SOLUTION: The reflector is constituted as the assembly of a plurality of section reflectors divided into a plurality of sections based on a distance from an optical axis, and constituted by tilting the section reflectors on a condition that a position where a light beam from a given point light source on the optical axis is reflected by the reflector and crosses with the optical axis is set so that a position where a light beam reflected by the section reflector near the optical axis crosses with the optical axis is more distant from the reflector than a position where a light beam reflected by the section reflector far from the optical axis crosses with the optical axis.
COPYRIGHT: (C)2004,JPO&NCIPI

6. 发明专利

JP2004037918A Support device for projection type video display device 有权
标题翻译：用于投影类型视频显示装置的支持装置
公开(公告)号：JP2004037918A
公开(公告)日：2004-02-05
申请号：JP2002196093
申请日：2002-07-04
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIRAISHI MIKIO , YAMAZAKI FUTOSHI , KUWATA MIKIHARU
IPC分类号： G02F1/13 , G02F1/1333 , G03B21/14 , H04N5/64
摘要： PROBLEM TO BE SOLVED: To provide a support device for a projection type video display device such that the projection video display device side and a lighting equipment side can be supplied with electric power independently of each other and the projection type video display device can be attached and detached independently of the luminaire.
SOLUTION: The device is equipped with a holding part which is configured to hold the projection type video display device and coupled with a ceiling side, a 1st connection part which is supplied with electric power from one electric power taking-out part on the ceiling side and to which the projection type video display device can be connected, and a 2nd connection part which is supplied with electric power from the power taking-out part through a 2nd path parallel to the 1st path and to which the luminaire can be connected.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了提供一种用于投影型视频显示装置的支持装置，使得投影视频显示装置侧和照明装置侧能够彼此独立地被提供电力，并且投影型视频显示装置可以独立于灯具进行连接和拆卸。
解决方案：该装置配备有保持部，该保持部被配置为保持投影型视频显示装置并与天花板侧连接，从一个电力取出部供给电力的第一连接部天花板侧，并且可以连接投影型视频显示装置的第二连接部，以及从取出部通过与第一路径平行的第二路径供给电力的第二连接部，并且照明装置可以连接的。版权所有（C）2004，JPO

7. 发明专利

JP2006114948A Color sequential system projection type video display apparatus 有权
标题翻译：彩色顺序系统投影类型视频显示设备
公开(公告)号：JP2006114948A
公开(公告)日：2006-04-27
申请号：JP2004297119
申请日：2004-10-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAZAKI FUTOSHI , TANITSU MASAHIKO
IPC分类号： H04N9/31 , G02F1/13 , G02F1/133 , G09G3/20 , G09G3/34 , G09G3/36
摘要： PROBLEM TO BE SOLVED: To reduce a color breakup phenomenon when a plurality of color sequential system projection type video display apparatuses are used to superimpose projected images to display a high luminance video image. SOLUTION: The color sequential system projection type video display apparatus for performing color display is provided with a time division color light generating means for time-dividing a light flux of primary colors in a predetermined color order defined within an RGB display cycle period to generate the light flux, a single video display element for applying optical intensity modulation to the color flux from the time division color light generating means by a color video image signal corresponding to the color light to form an optical image, and a projection means for magnifying a projection image of the optical image and projecting the projection image. This apparatus is provided with a color sequential control means for varying the predetermined color sequence. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了减少当使用多个彩色顺序系统投影型视频显示装置叠加投影图像以显示高亮度视频图像时的颜色分解现象。＆lt; P＆gt;解决方案：用于进行彩色显示的色彩顺序系统投影型视频显示装置设置有时分色光产生装置，用于以RGB显示周期周期内定义的预定颜色顺序对原色光束进行时分以产生光通量的单个视频显示元件，用于通过与彩色光对应的彩色视频图像信号对来自时分色光产生装置的色彩通量施加光强调制以形成光学图像;以及投影装置，放大光学图像的投影图像并投影投影图像。该装置设置有用于改变预定颜色序列的颜色顺序控制装置。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2005208183A Projection video display unit 有权
标题翻译：投影视频显示单元
公开(公告)号：JP2005208183A
公开(公告)日：2005-08-04
申请号：JP2004012595
申请日：2004-01-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAZAKI FUTOSHI , TANITSU MASAHIKO
IPC分类号： G02B6/00 , F21V29/505 , G02F1/13 , G02F1/13357 , G03B21/00 , G03B21/14 , G03B21/16 , G03B21/26
CPC分类号： H04N9/3152 , G03B21/26 , H04N9/3164
摘要： PROBLEM TO BE SOLVED: To make a projection video display device which uses an LED light source and a light pipe in combination, wherein the problems of producing higher luminance, making it smaller in size and cost reduction and the heat radiation of a liquid crystal panel are solved. SOLUTION: The light pipe is formed as a hollow type and is utilized as a cooling air passage as well. Also, the light pipe is provided internally with a transmissible or reflective baffle plate, or the light pipe is formed by subjecting the inside surface of an optical case integrated, by fixing optical components to mirror coating. A dichroic mirror is arranged on the emission surface of the LED light source. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了制造使用LED光源和光管的投影视频显示装置，其中产生较高亮度的问题，使得尺寸更小，成本降低和热辐射解决液晶面板。解决方案：光管形成为中空型，并用作冷却空气通道。此外，光管内部设置有可透射或反射的挡板，或者通过将光学部件固定在镜面涂覆上，使光学壳体的内表面经一体化而形成。二向色镜布置在LED光源的发射表面上。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2005202167A Light source unit and projection type image display device using the unit 有权
标题翻译：光源单元和使用单元的投影类型图像显示设备
公开(公告)号：JP2005202167A
公开(公告)日：2005-07-28
申请号：JP2004008620
申请日：2004-01-16
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAZAKI FUTOSHI , TANITSU MASAHIKO
IPC分类号： G03B21/14 , G02B27/18 , H04N5/74 , H04N9/31
CPC分类号： H04N9/3105 , H04N9/315
摘要： PROBLEM TO BE SOLVED: To secure sufficient brightness by restraining decrease in the light use efficiency in the limited area of the emission opening of a light source unit in a projection type image display device. SOLUTION: In the projection type image display device using a transmission type liquid crystal, a reflection type liquid crystal, or the like as an image display element, the light source unit in which a plurality of reflectors corresponding to LEDs as light sources are arranged is constructed so as to satisfy D COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过抑制投影型图像显示装置中的光源单元的发射开口的有限区域中的光利用效率的降低，以确保足够的亮度。解决方案：在使用透射型液晶的投影型图像显示装置，作为图像显示元件的反射型液晶等中，其中对应于作为光源的LED的多个反射器的光源单元被构造成满足D <4×f或D <4×Z，其中D是每个反射器的有效直径，f是反射镜的焦距，Z是发光部分的发光部分之间的距离每个光源和镜子中间的顶部。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2005189588A Polarization conversion element and projection type display apparatus using the same 审中-公开
标题翻译：偏振转换元件和投影型显示装置
公开(公告)号：JP2005189588A
公开(公告)日：2005-07-14
申请号：JP2003432019
申请日：2003-12-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAYAMA HIROSHI , HODEN KAZUO , YAMAZAKI FUTOSHI
IPC分类号： G02B5/30 , G02F1/1335 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To provide a polarization conversion element capable of increasing reliability by preventing the heat wearing and the heat accumulation of a λ/2 phase difference film as a polarized light rotating element for rotating polarized light, and to provide a projection type display apparatus using the polarization conversion element. SOLUTION: The polarization conversion element is constituted of a transparent member having a polarized light separating surface for separating light emitted from a light source into two polarized lights having different polarization directions and a reflection surface for reflecting one of polarized lights among the polarized light beams and the λ/2 phase difference film for rotating one of light among the polarized light beams, and the transparent member contains magnesium oxide. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种通过防止λ/ 2相位差膜的热磨损和热积聚作为旋转偏振光的偏振光旋转元件而提高可靠性的偏振转换元件，并且提供一种投影型显示装置。解决方案：偏振转换元件由具有偏振光分离表面的透明构件构成，用于将从光源发射的光分离成具有不同偏振方向的两个偏振光和用于反射偏振光中的偏振光之一的反射表面光束和用于在偏振光束之间旋转光之一的λ/ 2相位差膜，并且透明构件包含氧化镁。版权所有（C）2005，JPO＆NCIPI

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