An apparatus including an integrated circuit device comprising a plurality of pins, a plurality of electrostatic discharge units individually coupled to respective ones of the plurality of pins, and a portion of the plurality of electrostatic discharge units configured, upon addressing, to generate a signal representing a signature of the integrated circuit device. The first switch element turns on to start the second booster circuit so as to supply the storage voltage in the capacitor to the second booster circuit. The second screen device generates a request for related data signal corresponding to the content using the content identifier, communicates the request for related data signal through a network, receives aggregated related content data corresponding to the content from a data services center and displays the aggregated related content data. Furthermore, as the mounting joint is rotated, the catch blocks are gradually tightened against the lock ring ramp surfaces and engaged on the lock ring stop block, thereby securely positioning the mounting joint.