A system and method for providing shadow information for 3D computer graphics objects on a display for a graphic computer system are disclosed. A container containing a foodstuff is provided. The sealing member engages the peripheries of the first opening and the spool shaft and blocks ingress of moisture and particles to the locking components. According to the organic light emitting display, it is possible to prevent a pixel and a driver included in the organic light emitting display from being damaged by electrostatic discharge by dissipating the electrostatic discharge current through the protruding electrode.