The application discloses an electronic device and a control method and control device for the electronic device. The electronic device comprises a display screen and a flight time component; the display screen comprises a display area for displaying images; the display area forms a front and a back that are opposite to each other; the display screen comprises a first sub-screen and a second sub-screen that can be independently controlled and are of different types; the first sub-screen forms a first sub display area; the second sub-screen forms a second sub display area; the flight time component comprises an optical receiver; the optical receiver is arranged at a side of the back of the display screen and corresponds to the first sub display area; and when the optical receiver is turnedon, the first sub display area displays images in a first display timing and the optical receiver exposes in an exposure timing, effective working state corresponding to the first display timing and that corresponding to the exposure timing being staggered. According to the invention, because the optical receiver is arranged at the side of the back of the display, an opening to the optical receiver is unnecessary. Therefore, the screen-to-body ratio of the electronic device is relatively high.