Provided is a mobile terminal including a communicator configured to communicate with a display, the display comprising a plurality of panels and being configured to output optical information; an image capturing device configured to obtain an image of the display; and a processor configured to compensate the obtained image using a response characteristic of the image capturing device, and generate, using the compensated image, an adjustment signal to adjust the output of the optical information, wherein the communicator is further configured to transmit the adjustment signal to the display to permit the display to adjust the output of the optical information.