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1. 发明授权

US5523802A Dual-mode image display apparatus for displaying color images and black-and-white images 失效
标题翻译：用于显示彩色图像和黑白图像的双模式图像显示装置
公开(公告)号：US5523802A
公开(公告)日：1996-06-04
申请号：US183418
申请日：1994-01-19
申请人： Shouichi Sugihara , Masaki Yamakawa
发明人： Shouichi Sugihara , Masaki Yamakawa
IPC分类号： G09G1/00 , G09G1/06 , G09G1/28 , H04N9/22 , H04N9/12
CPC分类号： H04N9/22
摘要： A dual-mode image display apparatus includes a black-and-white image display device and a selective filter. The selective filter is caused to assume a first mode in which it sequentially serves as red, green and blue filters, and a second mode in which it transmits all the color components. Thus, the image display apparatus can selectively perform color display or black-and-white display. The selective filter may include variable optical retarders and may be caused to selectively assume the first mode or the second mode through control over the variable optical retarders. The selective filter may alternatively be moved by a motor between a first position in which the filter is in the path of light from the display device to the viewer, and a second position in which the filter is out of the path of light. A power supply controller is also used to conserve power by turning unneeded parts of a color image processing circuit OFF when the display apparatus is in the second mode.
摘要翻译：双模式图像显示装置包括黑白图像显示装置和选择滤光器。使选择性滤光片呈现第一模式，其中它顺序地用作红色，绿色和蓝色滤色器，以及第二模式，其中它传输所有颜色分量。因此，图像显示装置可以选择性地执行彩色显示或黑白显示。选择滤波器可以包括可变光学延迟器，并且可以通过对可变光学延迟器的控制而选择性地采取第一模式或第二模式。可选择地，选择性滤光器可以通过电动机在第一位置和第二位置之间移动，第一位置和滤光器处于光路径之外的第二位置，在第一位置处，滤光器处于来自显示装置的光的路径到观察者。当显示装置处于第二模式时，电源控制器还用于通过将彩色图像处理电路的不需要的部分切断而节省功率。

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