In an Alternating Current plasma display panel, a rear substrate and a front substrate are arranged to face each other. When the cylindrical surfaces register against the outer surface of the neck, the conical surfaces are positioned with the lower edges encroaching on the area compassed by the mouth in such a way that the cap can be gathered and aligned with the neck of the container before being tightened, thereby ensuring a precise fit. The on-board device includes a transmitter receiver, a storage circuit and a control circuit. Feedback means are described by which to accomplish this, whereby deflection of the wing affects an escapement mechanism which controls the timing and direction of the pumping means. A pressing board of the middle portion of the ejector pin upward presses the lower portions of the two spacing flakes. After removing the second photoresist and the anti-reflective coating, gates are formed from the wordline-gate material in the periphery region and the integrated circuit completed.