A foldable display apparatus that may realize one seamless screen by using two display panels is discussed. The foldable display apparatus can include a first display panel having a first display area; a second display panel having a second display area; and a panel supporter supporting the first and second display panels to mutually fold or unfold the first and second display panels, wherein boundary portions of the first display area of the first display panel and the second display area of the second display panel are matched with each other in a state that the first and second display panels are unfolded.