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1. 发明专利

JP2005043924A Projector 有权
标题翻译：投影机
公开(公告)号：JP2005043924A
公开(公告)日：2005-02-17
申请号：JP2004315006
申请日：2004-10-29
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： FUSE KENJI , KAKU NOBUYUKI , OZAWA NAOHIRO , TANITSU MASAHIKO , OUCHI SATOSHI , OTSUKA YASUO , MARUYAMA TAKESUKE , KONUMA YOSHIHIRO , YOSHIMURA HIDETOMO
IPC分类号： G02F1/13 , G03B21/00 , G03B21/16
摘要： PROBLEM TO BE SOLVED: To obtain an optical device such as a liquid crystal projector which is advantageous for miniaturization and thickness reduction and which has a highly efficient liquid crystal panel cooling structure.
SOLUTION: There is arranged a cooling fan on the side of a projection lens, and cooling air is guided to the lower part of the liquid crystal panel through an air duct. In addition, the projector is structured to cool a light source part by a second cooling fan which is separately arranged.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：获得有利于小型化和厚度减少的液晶投影仪等光学装置，并且具有高效液晶面板的冷却结构。
解决方案：在投影透镜的侧面设置有冷却风扇，并且冷却空气通过风道被引导到液晶面板的下部。此外，投影机被构造为通过分开布置的第二冷却风扇来冷却光源部分。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2010205504A Backlight device and image display device using the same 审中-公开
标题翻译：背光装置和使用其的图像显示装置
公开(公告)号：JP2010205504A
公开(公告)日：2010-09-16
申请号：JP2009048451
申请日：2009-03-02
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： INOUE HAJIME , OUCHI SATOSHI , SAKIDA KOICHI , MURATA SEIJI
IPC分类号： F21S2/00 , F21Y101/02 , G02F1/13357
CPC分类号： G02B6/0061 , G02B6/0038 , G02B6/008
摘要： PROBLEM TO BE SOLVED: To reduce or eliminate the distinction of a brightness difference in boundaries between backlight blocks by providing a light-and-dark difference inside the blocks into which a backlight device is divided.
SOLUTION: The backlight device includes the plurality of backlight blocks 4 each of which has a light emitting source including a LED or a fluorescent tube, a light guide plate for guiding beams from the light emitting source to the side of a liquid crystal panel, and a reflecting sheet arranged on the reverse of the light guide plate, and which are arranged side by side in combination. Herein, a dark brightness portion 12 and a medium light-and-dark brightness portion 13 are formed as light-and-dark difference patterns between which there is a light-and-dark difference in the brightness of beams emitted from the backlight blocks 4. The brightness unevenness of the light-and-dark difference patterns from the backlight blocks 4 eliminates the brightness distinction of a light brightness portion 11 as a light brightness pattern of beams emitted from boundaries between the backlight blocks.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过在分配背光装置的块内部提供亮暗差来减少或消除背光块之间的边界亮度差的区别。解决方案：背光装置包括多个背光块4，每个背光块具有包括LED或荧光管的发光源，导光板用于将来自发光源的光束引导到液晶的一侧和布置在导光板背面的反射片，并排并排配置。这里，暗亮度部分12和中等亮度和亮度的亮度部分13形成为从背光块4发射的光束的亮度之间存在亮度差的亮暗差分图案来自背光块4的亮暗差异图案的亮度不均匀性消除了作为从背光块之间的边界发射的光束的光亮度图案的光亮度部分11的亮度区别。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2009058590A Image display device, and method for adjusting oscillation state of reflection mirror in image display device 有权
标题翻译：图像显示装置和用于调整图像显示装置中反射镜的振荡状态的方法
公开(公告)号：JP2009058590A
公开(公告)日：2009-03-19
申请号：JP2007223752
申请日：2007-08-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOBORI TOMOO , OUCHI SATOSHI , HIRATA KOJI , IKEDA HIDEHIRO , MURATA SEIJI , HODEN KAZUO
IPC分类号： G02B26/10 , G02B27/18 , G03B21/00 , G03B21/14 , G09G3/02
CPC分类号： G03B33/06 , G03B21/008 , G03B21/28 , G09G3/025 , G09G2320/0233 , G09G2320/0285 , G09G2320/041 , G09G2360/145 , H04N9/3129 , H04N9/3155 , H04N9/3164
摘要： PROBLEM TO BE SOLVED: To prevent the structure of a reflection mirror from being adversely affected even when an output energy from a light source is increased to prevent its driving condition from being adversely affected. SOLUTION: A mirror driving control part 7 reads out past historical data regarding the temperature variation of a micro mirror 1 from a first LUT holding part 19. The temperature of the micro mirror 1 at the present time is assumed on the basis of the read out past data. The assumed temperature of the micro mirror 1 is decided as the temperature P temp of the micro mirror 1 at the present time. The oscillation (rocking) condition in the horizontal (H) direction and the oscillation (rocking) condition in the vertical (V) direction of the micro mirror 1 are revised according to P temp. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：即使当来自光源的输出能量增加以防止其驱动条件受到不利影响时，也可以防止反射镜的结构受到不利影响。解决方案：镜驱动控制部分7从第一LUT保持部件19读出关于微镜1的温度变化的过去历史数据。目前，微镜1的温度是基于读出过去的数据。微反射镜1的假定温度被确定为当前微镜1的温度P temp。微镜1的垂直（V）方向的水平（H）方向和振荡（摇摆）状态的振荡（摇摆）状态根据P温度进行修正。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2008300277A Back light unit 审中-公开
标题翻译：后灯单元
公开(公告)号：JP2008300277A
公开(公告)日：2008-12-11
申请号：JP2007146811
申请日：2007-06-01
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MURATA SEIJI , TSURU YASUTAKA , OUCHI SATOSHI , NAGAYOSHI MAYUMI
IPC分类号： F21S2/00 , F21V7/00 , F21V7/10 , F21Y101/00 , F21Y101/02
摘要： PROBLEM TO BE SOLVED: To prevent interference with the reduction in the unit thickness when a reflector is fitted to the backlight unit, in a direct backlight unit used for a liquid crystal display device.
SOLUTION: When a reflector is fitted to a chassis, the reflector reflecting lower part of light from a light source tube supplying backlight to a liquid crystal panel to uniform the reflected light, a reflector-fitting hole for inserting therein a protrusion of the reflector is so formed that the diameter of the lower part of the hole is larger than that of the upper part of the hole. As a result, when the protrusion is inserted in the hole, the front end of the protrusion hooks on the hole to prevent the protrusion from sticking out of the undersurface of the chassis. The hole for inserting the protrusion therein is formed so that it has a step by which the diameter of the lower part of the hole is enlarged or so that a diameter gets wider continuously. The protrusion may be welded by heat when inserted in the hole, or may be provided as an insertion pin whose front end widens after being inserted in the hole.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了防止在反射器装配到背光单元时在用于液晶显示装置的直接背光单元中干扰单元厚度的减小。解决方案：当反射器装配到底盘时，反射器将来自提供背光源的光源管的下部部分反射到液晶面板以使反射光均匀，反射器装配孔用于在其中插入突出部反射器被形成为使得孔的下部的直径大于孔的上部的直径。结果，当突起插入孔中时，突起的前端钩在孔上，以防止突起从底盘的下表面伸出。形成用于将突起插入的孔形成为具有使孔的下部的直径扩大或连续变大的步骤。突起可以在插入孔中时被加热焊接，或者可以设置为插入孔中的前端变宽的插入销。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2008299167A Liquid crystal display 有权
标题翻译：液晶显示器
公开(公告)号：JP2008299167A
公开(公告)日：2008-12-11
申请号：JP2007146610
申请日：2007-06-01
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MURATA SEIJI , TSURU YASUTAKA , OUCHI SATOSHI , NAGAYOSHI MAYUMI
IPC分类号： G02F1/13357 , F21S2/00 , F21V3/00 , F21Y103/00 , G02F1/1333
摘要： PROBLEM TO BE SOLVED: To solve the problem that a part of an electrode part which does not emit light is required to be disposed in a backlight unit in order to obtain thinness and a luminance level of an end part of an effective display region of a liquid crystal panel is attenuated in the direct type backlight unit used for a liquid crystal display.
SOLUTION: A reflector part of a side wall of an end part of a linear light source is constituted of a reflection plate and a structure having at least two or more inclined surfaces. The inclined surfaces may have a step shape and have a structure having a high ridge at a center part thereof. Thereby, attenuation of the luminance level of the end part of the effective display region is further reduced.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题为了解决为了获得有效显示器的端部的薄度和亮度水平而需要将不发光的电极部分的一部分设置在背光单元中的问题在用于液晶显示器的直接型背光单元中液晶面板的区域衰减。解决方案：线性光源的端部的侧壁的反射部分由反射板和具有至少两个或更多个倾斜表面的结构构成。倾斜表面可以具有台阶形状并且具有在其中心部分具有高脊的结构。由此，有效显示区域的端部的亮度水平的衰减进一步降低。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2008102539A Optical unit and video display device using the same 有权
标题翻译：光学单元和使用该光学单元的视频显示设备
公开(公告)号：JP2008102539A
公开(公告)日：2008-05-01
申请号：JP2007292720
申请日：2007-11-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OUCHI SATOSHI
IPC分类号： G03B21/00 , G02B27/00 , G02F1/13 , G02F1/1335 , G02F1/13357 , G03B21/14
摘要： PROBLEM TO BE SOLVED: To obtain a single plate type optical unit which is simple in structure and superior in the efficiency of using light, and to provide a display device. SOLUTION: A dichroic mirror for separating light into a plurality of colors and a rotating polyhedron are irradiated with a plurality of color lights, reflected by the dichroic mirror, the places different from each other of a display element are irradiated with the plurality of color lights emitted from the rotating polyhedron, and the rotating polyhedron is rotated to unidirectionally make the plurality of color lights on the display element move and project a color image from a projection lens. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：获得结构简单且使用光效率优异的单板式光学单元，并提供显示装置。解决方案：用分离光进行多种颜色的分色镜和旋转多面体照射由分色镜反射的多个颜色的光，与显示元件彼此不同的位置照射多个从旋转的多面体发出的彩色光，旋转的多面体被旋转以单向地使显示元件上的多个彩色光从投影透镜移动并投影彩色图像。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2007192951A Single plate system projection type video display device and optical unit therefor 审中-公开
标题翻译：单板系统投影类型视频显示设备及其光学单元
公开(公告)号：JP2007192951A
公开(公告)日：2007-08-02
申请号：JP2006009388
申请日：2006-01-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MURATA SEIJI , OUCHI SATOSHI , ABE FUKUOKU , KAWASE JUNKO
IPC分类号： G03B21/14 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To provide a projection device capable of improving the brightness of a display picture by improving the output of each color light on a liquid crystal display element, and an optical unit therefor.
SOLUTION: In the optical unit used for the single plate system projection type video display device using the liquid crystal display element, an integrator is formed of a first optical waveguide 3 and a second optical waveguide 6, and also a polarized light conversion element 4 is arranged between the first optical waveguide 3 and the second optical waveguide 6, and a reflection mirror 7 is provided on the outside of an aperture on an incident side of the second optical waveguide 6.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：提供一种能够通过改善液晶显示元件上的每种颜色光的输出以及其光学单元来提高显示图像的亮度的投影设备。解决方案：在用于使用液晶显示元件的单板系统投影型视频显示装置的光学单元中，积分器由第一光波导3和第二光波导6形成，并且还具有偏振光转换元件4设置在第一光波导3和第二光波导6之间，反射镜7设置在第二光波导6的入射侧的孔的外侧。（C）2007 ，JPO＆INPIT

8. 发明专利

JP2007171766A Projection image display device 审中-公开
标题翻译：投影图像显示设备
公开(公告)号：JP2007171766A
公开(公告)日：2007-07-05
申请号：JP2005371837
申请日：2005-12-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IMAHASE TARO , OUCHI SATOSHI , HONDA TARO , MURATA SEIJI
IPC分类号： G03B21/14 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To reduce loss due to divergence of light emitted from a light source to provide a uniform in-plane intensity distribution and to allow a size of an emission face of the light source to be freely selected, with respect to a projection image display device.
SOLUTION: The projection image display device includes a light pipe 2 for providing an approximately uniform illuminance distribution of light emitted from a LED light source 1 and an imaging lens 3 for imaging light emitted from the light pipe 2, on a liquid crystal panel 4, and an incidence face of the light pipe 2 is disposed closely to an emission face of the LED light source 1, and shapes of both faces are approximately same. Furthermore, shapes of an incidence face opening and an emission face opening of the light pipe 2 are different from each other.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了减少由于从光源发射的光的发散造成的损失，以提供均匀的面内强度分布并且允许光源的发射面的尺寸自由选择，对于投影图像显示装置。投影图像显示装置包括：光管2，用于提供从LED光源1发射的光的近似均匀的照度分布;以及用于将从光管2发射的光成像到成像透镜3的液晶面板4，并且光管2的入射面靠近LED光源1的发射面设置，两面的形状大致相同。此外，光管2的入射面开口和发射面开口的形状彼此不同。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2006221198A Video display apparatus 有权
标题翻译：视频显示设备
公开(公告)号：JP2006221198A
公开(公告)日：2006-08-24
申请号：JP2006130025
申请日：2006-05-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIYOSHI TOMOHIRO , OUCHI SATOSHI , OTSUKA YASUO , TANITSU MASAHIKO , IMAHASE TARO , SHIAKI TAKUYA
IPC分类号： G03B21/14 , G02F1/13 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To improve white balance, regarding a video display apparatus.
SOLUTION: At least two color separating means are arranged on an optical path between a lamp 9 and a light valve means 13, and light of a wavelength band from 480nm to 540nm is eliminated from the optical path by spectral characteristics of the separating means. Further, respective lenses and respective mirrors on the way from the illuminating system to a light valve element are constituted so as to transmit ≥ about 95% of light of the wavelength band from nearly 400 to 430nm, and light of the wavelength band from nearly 680 to 700nm.
COPYRIGHT: (C)2006,JPO&NCIPI

10. 发明专利

JP2006209054A Lighting device and display apparatus using thereof 审中-公开
标题翻译：照明装置及其使用的显示装置
公开(公告)号：JP2006209054A
公开(公告)日：2006-08-10
申请号：JP2005135502
申请日：2005-05-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOBORI TOMOO , OUCHI SATOSHI , IMAHASE TARO , MARUYAMA ATSUSHI
IPC分类号： G09G3/34 , G09G3/20 , G09G3/36 , H01L33/08 , H05B37/02
CPC分类号： H05B33/0818 , H05B33/0866 , H05B33/0869 , Y02B20/346
摘要： PROBLEM TO BE SOLVED: To provide a lighting device which controls individual LEDs so as to obtain precise and uniform light emission property even when individual LED light emission properties are not uniform in the lighting device where high luminance is obtained by driving a plurality of LEDs, and to provide a display apparatus using the lighting device. SOLUTION: In a high luminance LED array, each LED has a power generation quantity detection means, a determination means for determining the power generation quantity of individual LEDs from the individual power generation detection means; and a power generation quantity control means and a light emission driving means for controlling a driving voltage/period so that the individual LED may be a desired light emitting quantity. The determination means determines the light quantity of the LEDs in a lighting period from light emission distribution by the power generation quantity and arranging position relation of the LEDs in a light-out period and the individual LED properties known in advance to control the light emission quantity to be a desired value. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供一种照明装置，其控制各个LED，以便即使在通过驱动多个LED获得高亮度的照明装置中各个LED发光特性不均匀也能获得精确均匀的发光特性的LED，并且提供使用该照明装置的显示装置。解决方案：在高亮度LED阵列中，每个LED具有发电量检测装置，用于从各个发电检测装置确定各个LED的发电量的确定装置; 以及用于控制驱动电压/周期的发电量控制装置和发光驱动装置，使得各个LED可以是期望的发光量。确定装置根据发光量从发光分布确定LED的光量，并且在发光期间排列LED的位置关系和预先知道的各个LED特性以控制发光量成为期望的价值。版权所有（C）2006，JPO＆NCIPI

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