Automatic page-turning electronic device and method for realizing off-screen handwriting input

The present invention discloses an automatic page-turning electronic device and method for realizing off-screen handwriting input. The electronic device comprises a display apparatus with an input page; the input page is located in a first coordinate system; a handwriting input apparatus comprises a signal transmitter and moves in a second coordinate system; and the second coordinate system differs from the first coordinate system. The electronic device comprises: a receiving unit, for receiving, at a first preset time interval, a signal sent by the signal transmitter; a coordinate value determination unit, for determining a coordinate value of the handwriting input apparatus in the second coordinate system according to the received signal transmitted by the signal transmitter, and converting the coordinate value into a corresponding coordinate value in the first coordinate system; a coordinate value storage unit, storing the coordinate value in the first coordinate system; a display unit, displaying a track