A display device receiving an image is provided. The display device includes a micro control unit and a plurality of transceivers. The plurality of transceivers are disposed in a plurality of corners of the display device respectively and connected with the micro control unit. When the display device corporately display the image with a plurality of the display devices, the transceivers in the display device detects detected information from the transceivers in the adjacent display devices, and the micro control unit determines an absolute coordinate information of the display device according to the detected information, wherein the display device displays a portion of the image according to the absolute coordinate information of the display device.