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    • 7. 发明申请
    • Rear projection display
    • 背投显示
    • US20060139577A1
    • 2006-06-29
    • US11312558
    • 2005-12-21
    • Takashi IkedaTakashi MiwaHaruhiko MurataHideyuki Kanayama
    • Takashi IkedaTakashi MiwaHaruhiko MurataHideyuki Kanayama
    • G03B21/22
    • G03B21/10G03B21/16G03B21/28H04N9/3105H04N9/3141
    • A rear projection display, not requiring a dichroic prism, and capable of rendering a generation system of each image light in color independent of the other generation systems so as to optimally construct and improve easiness of assembly of, and so on, each generation system, is provided. Each unit for projecting image-light is formed of an LED array, a rod integrator, a liquid crystal display panel, and a projection lens. A projection optical axis of the projection lens of each unit for projecting image-light is parallel each other. A unit for projecting image light in red is provided with an LED array for emitting light of a wavelength band in red, a unit for projecting image light in green is provided with an LED array for emitting light of a wavelength band in green, and a unit for projecting image light in blue is provided with an LED array for emitting light of a wavelength band in blue. Each image light in color obtained as a result of passing through the liquid crystal display panel is projected by the projection lens, and displayed on a screen. As a result, each image light in color is superposed on the screen, and an image in full color is displayed.
    • 背投显示器,不需要二向色棱镜,并且能够使得每个图像的发光系统的颜色独立于其他发电系统,从而最佳地构建和改善每个发电系统的组装等等, 被提供。 用于投影图像光的每个单元由LED阵列,杆积分器,液晶显示面板和投影透镜形成。 用于投影图像光的每个单元的投影透镜的投影光轴彼此平行。 用红色投射图像光的单元设置有用于发射红色波长带的光的LED阵列,用于以绿色投射图像光的单元设置有用于发射绿色波长带的光的LED阵列,以及 用于以蓝色投射图像光的单元设置有用于发射蓝色波长带的光的LED阵列。 作为通过液晶显示面板的结果获得的每种颜色的光被投影透镜投影并显示在屏幕上。 结果,将每个图像的颜色光重叠在屏幕上,并且显示全色的图像。
    • 10. 发明授权
    • Projection type video display apparatus
    • 投影式视频显示装置
    • US07578595B2
    • 2009-08-25
    • US11248607
    • 2005-10-13
    • Takashi MiwaTakashi Ikeda
    • Takashi MiwaTakashi Ikeda
    • G03B21/18G03B21/26H04N5/74G02F1/00F21V29/00
    • H04N9/3141H04N9/3144
    • There is provided a heat conductive portion for conducting heat generated by an LED light source to cooling liquid at a rear side of each LED light source. Each heat conductive portion is connected one another with a pipe, and the cooling liquid flowing in the pipe is sequentially circulated through each heat conductive portion. A heat generation amount of an LED light source for red light is the smallest, the heat generation amount of an LED light source for green light is the largest, and the heat generation amount of an LED light source for blue light is the middle of the two. The cooling liquid cooled by passing through a radiation fin is firstly supplied to the heat conductive portion for the LED light source for red light, secondly supplied to the heat conductive portion for the LED light source for blue light, and lastly supplied to the heat conductive portion for the LED light source for green light. The cooling liquid discharged from a pump is supplied to the heat conductive portion for the heat conductive portion for the LED light source for green light. Then, the cooling liquid from this heat conductive portion passes through the pipe to be supplied to the radiation fin (radiator).
    • 设置有用于将由LED光源产生的热量引导到每个LED光源的后侧的冷却液体的导热部。 每个导热部分用管道彼此连接,并且流过管道的冷却液体依次循环通过每个导热部分。 用于红光的LED光源的发热量最小,用于绿光的LED光源的发热量最大,并且用于蓝光的LED光源的发热量是 二。 通过散热片冷却的冷却液首先供给到用于红光的LED光源的导热部分,其次被提供给用于蓝光的LED光源的导热部分,最后供给到导热 用于绿光的LED光源部分。 从泵排出的冷却液供给到用于绿色用的LED用光源的导热部的导热部。 然后,来自该导热部的冷却液通过配管供给散热片(散热器)。