A method for executing a clipboard function on a mobile device with a dual display unit, the method comprising: displaying screen images on at least one of a first display unit and a second display unit according to an execution of an application; displaying a clipboard area on the first display unit and the second display unit according to an execution of the clipboard function, where the clipboard area comprises two regions (510, 530), one of said regions allocated to the first display unit and the other of said regions allocated to the second display unit, wherein the two regions (510, 530) are located near a boundary between the first display unit and the second display unit and associated with each other respectively for functioning as one overall clipboard area; controlling, in response to received input events, one of registering an object in the clipboard area, said object being displayed on a screen area of the first display unit or the second display unit, by copying an item corresponding to said object in the clipboard area, thereby displaying the item on the clipboard area on the first and second display units (310, 330) by extending the item over the boundary between them, and adding an object, corresponding to an item in the clipboard area, to the first display unit or the second display unit; displaying a list view screen image comprising a list of items of the clipboard area, on at least one of the first display unit and the second display unit; and editing at least one item, registered in the clipboard area, on the list view screen image, wherein the registering of the object comprises receiving a gesture that selects an object displayed on the first display unit or the second display unit and moves the object to the region (510, 530) of the clipboard area corresponding to the first display unit or the second display unit where the object is selected, and wherein the adding of the object to the first display unit or the second display unit, comprises receiving a gesture to move the item, selected in the region (510, 530) of the clipboard area on the first display unit or the second display unit, out of the region (510, 530). displaying screen images on at least one of a first display unit and a second display unit according to an execution of an application; displaying a clipboard area on the first display unit and the second display unit according to an execution of the clipboard function, where the clipboard area comprises two regions (510, 530), one of said regions allocated to the first display unit and the other of said regions allocated to the second display unit, wherein the two regions (510, 530) are located near a boundary between the first display unit and the second display unit and associated with each other respectively for functioning as one overall clipboard area; controlling, in response to received input events, one of registering an object in the clipboard area, said object being displayed on a screen area of the first display unit or the second display unit, by copying an item corresponding to said object in the clipboard area, thereby displaying the item on the clipboard area on the first and second display units (310, 330) by extending the item over the boundary between them, and adding an object, corresponding to an item in the clipboard area, to the first display unit or the second display unit; displaying a list view screen image comprising a list of items of the clipboard area, on at least one of the first display unit and the second display unit; and editing at least one item, registered in the clipboard area, on the list view screen image, wherein the registering of the object comprises receiving a gesture that selects an object displayed on the first display unit or the second display unit and moves the object to the region (510, 530) of the clipboard area corresponding to the first display unit or the second display unit where the object is selected, and wherein the adding of the object to the first display unit or the second display unit, comprises receiving a gesture to move the item, selected in the region (510, 530) of the clipboard area on the first display unit or the second display unit, out of the region (510, 530).