| 摘要 |
<p>The present invention provides a transportation unit in which a plurality of window frames are disposed including: display devices coupled to the window frames; a plurality of video transmission units respectively connected to the display devices; a control unit for transmitting a video signal corresponding to each of the video transmission units; and a video information receiving unit for transmitting video information, va and vb, different from each other or one video information vc to the control unit.</p> |
