A dual hinge apparatus of a portable terminal including a body housing, a folder including a liquid crystal display section and rotated in the body housing about first, second, and third axes, and a dual connection member providing the first, second, and third hinge axes and rotatably connecting the folder about the first, second, and third hinge axes, the dual hinge apparatus comprising:
- base members;
- rotation members;
- first and second guide pins provided in the rotation members;
- first and second guide sections provided in the base members, the first and second guide sections engaged with the first and second guide pins to place the body housing and the folder at the centers of the dual connection members by guiding linear movements of the first guide pins when the rotation members are rotated about the second and third hinge axes in the clockwise and counter-clockwise directions and by guiding and moving the second guide pins in an inclined manner and then in a curved manner and guiding and moving the second and third hinge axes in an inclined manner and then in a curved manner;
- and
- at least one force supplying means provided between the first and second guide sections and providing forces for moving the first and second guide pins linearly or in an inclined manner and then in a curved manner,
- wherein the rotation members are rotatable in the clockwise direction to be located transversely and the rotation members are rotatable in the counterclockwise direction to be located transversely.