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    • 98. 发明授权
    • Picture display apparatus for displaying a colored picture
    • 用于显示彩色图像的图像显示装置
    • US06330039B2
    • 2001-12-11
    • US09828743
    • 2001-04-09
    • Takeshi MatsuiTakuji YoshidaShunichi HashimotoYoshinori TanakaOsamu Akimoto
    • Takeshi MatsuiTakuji YoshidaShunichi HashimotoYoshinori TanakaOsamu Akimoto
    • H04N931
    • H04N9/3152H04N9/3155H04N9/3164H04N9/3182
    • A picture display method and apparatus in which a light source is lengthened in service life and optimum color reproduction is realized, while the light utilization efficiency is improved to reduce the power consumption and the size of the apparatus. The red, green and blue illuminating light beams radiated from the light-emitting diodes 12R, 12G and 12R, are illuminated via relay lenses and field lenses on picture display light valves 11R, 11G and 11B and spatially modulated in intensity so as to be synthesized by a synthesis prism 10 and so as to be projected to an enlarged scale on a screen 17. The profile of the light radiating portions of the light-emitting diodes 12R, 12G and 12B are set so as to be the same or similar to the profile of a picture display area of each of the picture display light valves 11R, 11G and 11B in order that the profile of the light beam illuminated on the picture display area will be in keeping with the profile of the picture display area.
    • 实现了光源在使用寿命中延长并且实现最佳色彩再现的图像显示方法和装置,同时提高了光利用效率以降低功耗和装置的尺寸。 从发光二极管12R,12G,12R发出的红色,绿色,蓝色的照明光束通过图像显示用光阀11R,11G,11B上的中继透镜和场透镜照射,并进行空间调制,使其合成 通过合成棱镜10并且在屏幕17上以放大的尺度投影。发光二极管12R,12G和12B的发光部分的轮廓被设定为与 每个图像显示光阀11R,11G和11B的图像显示区域的轮廓,以便照亮在图像显示区域上的光束的轮廓将与图像显示区域的轮廓保持一致。