US Patent 7137131 Optical disc drive

An optical disc drive including a case in which a circuit board is provided, a tray on which an optical disc is mounted and is installed in the case capable of sliding in and out of the case, a main base coupled to the tray wherein the main base includes, a spindle motor to rotate the optical disc, a bracket to support the spindle motor, an optical pickup to access the optical disc, and a driving motor to drive the optical pickup. The optical disc drive also includes a flexible printed circuit electrically connecting the circuit board and the tray, on which a ground pattern is formed, and a base cover coupled to the main base to protect the main base. An exposure portion of the ground pattern is formed on part of the flexible printed circuit, and a contact portion electrically contacting the exposure portion of the ground pattern is formed on the base cover so that static electricity applied to the base cover is grounded.