A display apparatus has a housing, a base, a system board and a display panel. The base is connected to the housing such that the display apparatus is disposed on a flat surface. The system board is disposed in the housing and has a control system for performing an up-down inversing process for an image transmitted from a signal source. The display panel has a timing controller and a pixel array. Specifically, the display panel is put upside down in the housing such that the pixel array is also upside down, and the timing controller is adjacent to the location connecting the base with the housing. The timing controller is coupled to the system board, to perform a left-right mirroring process for the up-down inversed image.