US Patent 10209811 Mobile terminal device and driving method thereof

Disclosed is a mobile terminal device in which a locking mode is released based on a touch intensity in order to prevent an unlocking operation by an unintended touch, and a driving method thereof, wherein the driving method includes detecting a touch intensity for each touch when a plurality of touches occur in a locking mode, and releasing the locking mode on the basis of the plurality of touch intensities detected, or executing a function corresponding to the plurality of touch intensities detected.