Disclosed herein is a display apparatus that uses a display module by selectively setting the display module to a flat surface form and a curved surface form. The display apparatus includes a display module that is bendable and is configured to display an image, and a bending structure configured to deform the display module by moving at least one of a center and both ends of the display module relative to each other to form one of a flat surface form and a curved surface form of the display module.