Foldable display device providing adaptive touch sensitive area and method for controlling the same

A foldable display device comprising:

• a foldable display unit being in a folded state when the foldable display device is folded and being in an unfolded state when the foldable display device is unfolded, the foldable display unit being divided into a first area which is a border area, a second area which is a folding area and a third area located between the first area and the second area;
• touch sensor units of the first area, the second area and the third area configured to detect control input for the display unit;
• and
• a controller configured to control the display unit and the touch sensor units,
• wherein the controller is further configured to:
• detect the state of the foldable display unit,
• deactivate the touch sensor units of the first area and the second area and activates the touch sensor unit of the third area, if the foldable display unit is in the folded state, or deactivate the touch sensor unit of the first area and activates the touch sensor units of the second area and the third area, if the foldable display unit is in the unfolded state, and
• change a width of the first area in proportion to a gripped area by a user.