A method of manufacturing a display apparatus includes forming a flexible substrate on a first surface of a carrier substrate, forming a display device on the flexible substrate, and ablating the carrier substrate by radiating a plurality of laser beams on a second surface of the carrier substrate, the second surface being opposite the first surface, such that the plurality of laser beams is incident on the second surface at different angles, passes through the carrier substrate, and is overlappingly focused on a first region of a boundary surface between the carrier substrate and the flexible substrate.