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    • 73. 发明申请
    • Image display apparatus
    • 图像显示装置
    • US20090059125A1
    • 2009-03-05
    • US12230726
    • 2008-09-04
    • Mayumi NagayoshiSatoshi OuchiSeiji MurataYasutaka Tsuru
    • Mayumi NagayoshiSatoshi OuchiSeiji MurataYasutaka Tsuru
    • G02F1/13357
    • G02F1/133611G02F1/133603G02F2001/133607G02F2203/02
    • An image display apparatus includes: a plurality of light sources for emitting light; an optical uniformizing portion for uniformizing light emitted from the plurality of light sources; a total reflection portion disposed above the plurality of light sources, the total reflection portion totally reflecting light from the optical uniformizing portion; an optical guide portion for guiding light totally reflected at the total reflection portion; an optical diffusion unit for diffusing light from the total reflection portion and outputting the diffused light; an optical parallelizing unit for parallelizing light from the optical diffusion unit; and a liquid crystal panel for modulating light from the optical parallelizing unit into an optical image in accordance with an image signal and displaying the optical image.
    • 一种图像显示装置包括:多个用于发光的光源; 用于使从所述多个光源发射的光均匀化的光学均匀化部分; 全反射部分,设置在多个光源的上方,全反射部分全反射来自光学均匀化部分的光; 用于引导在全反射部分全反射的光的光导部; 光漫射单元,用于漫射来自全反射部分的光并输出漫射光; 用于使来自光扩散单元的光并行化的光学并行化单元; 以及用于根据图像信号将来自光学并行化单元的光调制成光学图像并显示光学图像的液晶面板。
    • 75. 发明申请
    • Optical unit, video display apparatus, and color switching method
    • 光学单元,视频显示设备和颜色切换方法
    • US20080278636A1
    • 2008-11-13
    • US12216846
    • 2008-07-11
    • Satoshi OuchiTaro ImahaseNobuaki Kabuto
    • Satoshi OuchiTaro ImahaseNobuaki Kabuto
    • H04N9/31
    • G02B27/283G03B21/006G03B21/2073G03B33/08H04N9/3117
    • A projection-type video display apparatus has a polarizing beam splitter for matching light, which is outputted by a light source unit, to one of S polarizing light and P polarizing light, an optical characteristics switching element for electrically and periodically switching a wavelength band of light outputted by the polarizing beam splitter, a video display element, as a light valve element, for forming an optical image from light outputted by the light source unit, in accordance with a video signal, and a radiating unit for radiating a plurality of color light, which are sequentially outputted by the optical characteristics switching element, to the video display element, wherein light outputted by the video display element is incident on a projecting lens, and a light path from the light source unit to the projecting lens is U-shaped. Consequently, the projection-type video display apparatus becomes compact and has improved contrast.
    • 一种投射式视频显示装置,具有将由光源单元输出的光与S偏振光和P偏振光中的一种进行匹配的偏振光束分离器,用于电性地且周期性地切换波长带的光学特性切换元件 由偏振分束器输出的光,作为光阀元件的视频显示元件,用于根据视频信号从光源单元输出的光形成光学图像;以及辐射单元,用于发射多种颜色 由光学特性切换元件依次输出的光被照射到视频显示元件,其中由视频显示元件输出的光入射到投影透镜上,并且从光源单元到投影透镜的光路为U形, 成形。 因此,投影型视频显示装置变得紧凑并且具有改善的对比度。