A heat spreader for a display device, such as a plasma display panel, a light emitting diode or a liquid crystal display, comprising at least one sheet of compressed particles of exfoliated graphite having a surface area greater than the surface area of that part of the back surface of the display device where a localized region of higher temperature is generated. The invisible optically recognizable compound is an infrared ink andor film, which can be detected by a sensor found in an ATM or card assembly line. The session modifying request is transmitted to the central control point which initiates a media modification at the specified members in response to the scope information. This aspect of the present invention may reduce the destructive interference that may occur as different connections compete with one another to maximize the bandwidth of each connection without regard to other connections serving the same application.