| 摘要 |
PURPOSE:To accurately transfer a shutter control signal by superimposing the shutter control signal at least with a video signal or a synchronizing signal and transmitting it to a display monitor in a signal superimposing circuit. CONSTITUTION:The shutter control signal generated in a signal generation circuit 5 is superimposed with a vertical synchronizing signal from a synchronizing signal generation circuit 4 in the superimposing circuit 14, and it is transmitted to a monitor device 21 through a synchronizing signal line 11. The vertical synchronizing signal is separated into the vertical synchronizing signal and the shutter control signal in a signal separation circuit 17. The shutter control signal is transmitted to an oscillation part fitted to the device 21 from a signal originating circuit 18 and an infrared ray is emitted. The infrared ray is received in the light-reception part of a liquid crystal shutter glass device 13 mounted on a man, the opening/closing of a liquid crystal shutter is controlled and a display picture is accurately recognized as a three-dimensional picture. |
