PURPOSE: To execute video pickup from the rear part of the screen by boring a hole on the boundary part through arranging two screens for display, and preventing the projected light part projecting to the hole part.

CONSTITUTION: For example, in case of TV conference, video signals transmitted from the council room of the partner are projected on screen 4(4A, 4B) with excluding the part corresponding to hole 5(5A, 5B) on projector 8(8A, 8B) by blanking pulse formed blanking pulse generation circuit 9(9A, 9B). While, a video pickup device 1(1A, 1B) is installed on the rear side of the screen 4 and picks up attendants 10 through the hole 5. Since the attendants 10 see the video or drawing picture or the like of attendants of partner, the video picked up by the video pickup picture or the like of attendants of partner, the video picked up by the video pickup device 1 shows that the attendants 10 face toward the direction of said device 1.