| 摘要 |
A projection system, comprising: a projection screen (1), a projection device (2), a remote control terminal (3), and a display device (4). When receiving a light beam projected by the projection device (2), the projection screen (1) transmits the received first location information of the light beam irradiation location to the projection device (2); The projection device (2) determines a display area according to the first location information; according to the display area, the display device (4) establishes a mapping relationship between the display location on the projection screen (1) and the display location on the display device (4); when receiving the light beam emitted by the remote control terminal (3), the projection screen (1) transmits the second location information of the light beam irradiation location to the display device (4); the display device (4) determines a remote control area according to the second location information and the mapping relationship. |
