Display apparatus and control method thereof

Disclosed are a display apparatus and a control method thereof. The display apparatus may include a signal receiving unit which receives a three-dimensional (3D) image signal, the 3D image signal including a left eye image and a right eye image; a converter which converts a format of the 3D image signal into a second transmission format if the format of the 3D image signal is of a first transmission format; a 3D processor which processes the converted 3D image signal for 3D display; and a display unit which performs the 3D display with regard to the processed 3D image signal. With this configuration, it is possible to convert a 3D image signal of a new standard into a format which can be processed by a system which processes a 3D image signal according to a previously existing standard.