A display device according to an embodiment of the present invention comprises: a network interface unit for connecting the display unit to a terminal; a decoder for decoding encoded data received from the terminal; a display unit; and a control unit for receiving, from the terminal, the encoded data comprising a plurality of integrally encoded content images, performing control such that the decoder decodes the encoded data, extracting each of the plurality of content images from decoded data generated as a result of the decoding, and performing control such that the display unit displays each of the extracted images.