| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an operation monitor allowing display of a large-size display device to be viewed when a projector screen is installed in a position wherein the display of the large-scale display device is hidden. <P>SOLUTION: This operation monitor includes: a compact projector screen 34 as compared with the display device 1; a projector 35 projecting an image onto the projector screen 34; and a control part 37 making projection control of the projector. Because the control part 37 makes the projector screen 34 transparent, the operation monitor allows the display of the display device 1 to be viewed. <P>COPYRIGHT: (C)2011,JPO&INPIT |
