Apparatus and method for fulfilling functions related to user input of note-taking pattern on lock screen

Embodiment of the invention relates to a device for executing the function corresponding to the written form of the unlock command, and at the same time the user inputs a handwritten form on the lock-screen of the electronic device, the first layer and the first layer for the unlocking claim by the touch screen and user input means for indicating a lock screen comprises a second layer superimposed on when the lock release command input by the first layer verify that match the predetermined unlocking command and the predetermined If the unlock command that matches the unlock command is input, and displays the second layer, when the second, etc. written in the form of character or symbol or shape on the two-layer type, retrieve the instructions corresponding to the input handwritten form and it characterized in that it comprises a control unit for controlling so that the command is executed.