A display device can include a communication unit to receive first data from the external device; a display unit to display first screen information based on the first data; and a control unit to receive an content selection and transmit location information corresponding to the selected content to the external device for executing a function, and receive second data from the external device that is based on the executed function, and display second screen information based on the received second data, in which the first data is related to contents displayed in the external device before receiving the location information, the second data is related to contents displayed in the external device after receiving the location information and executing the function based on the location information from the external device, the location information includes coordinate information that are coordinates of the selected content in the displayed first screen information.