Mobile terminal equipped with touch screen and controlling method

The invention relates to a mobile terminal equipped with a touch screen and a controlling method. A mobile terminal according to one embodiment of the preset invention includes a first touch screen including a sub display, a second touch screen including a main display, a touch recognition sensor configured to recognize a first touch input and a second touch input starting on a first position of the first touch screen, a memory configured to store the recognized first touch input and the second touch input as a unlock pattern and if a third touch input and a fourth touch input starting on a second position of the first touch screen are recognized by the touch recognition sensor, a controller configured to compare the unlock pattern stored in the memory with the recognized third touch input and the fourth touch input and execute unlock of the main display according to a result of the comparison.