Patent ID: 7480134

Claim:
A sleeping device installed in a notebook computer, having a mainframe and a flat panel display, the flat panel display being pivotally connected with the mainframe such that the flat panel display folds against or unfolds away from the mainframe, the sleeping device comprising: a tab, secured to the flat panel display; an opening, formed on an upper plate of the mainframe; a printed circuit board, disposed on a lower plate of the mainframe; two conductive coatings, disposed on the printed circuit board; and a resilient metal, disposed between the upper plate and the printed circuit board, the resilient metal being secured on the upper plate at one end to suspend an opposite end, the opposite end having two contact sections, when the flat panel display folds against the mainframe, the tab passes through the opening to press the resilient metal down such that the contact sections are in contact with the conductive coatings to enable the notebook computer to enter a sleeping mode.