Touch device and driving method thereof

A touch device includes a touch panel that includes driving lines, sensing lines, a virtual key, a self-sensing line, and a shielding line. The touch panel has a display region and a non-display region. The driving lines extend along a first direction in the display region and further extend into the non-display region. The sensing lines extend along a second direction in the display region and extend into the non-display region. The first direction is different from the second direction. The virtual key is located in the non-display region and between the driving lines and the sensing lines to shield the driving lines from the sensing lines. Each of the self-sensing line and the shielding line is located in the non-display region, connected to the virtual key, and located between the driving lines and the sensing lines to shield the driving lines from the sensing lines.