| 摘要 |
A lid (100) includes a cover plate (2) and at least one date display device (3, 3′). The cover plate (2) includes at least one mounting area (21) having a number of through-holes (211). The data display device (3, 3′) includes a number of digital display units (32, 32, 33, 34) having a number of flexible protruding membranes (311, 311′) to form a number pattern. The protruding membranes (311, 311′) can be bent upward or downward selectively in order to change the number pattern. Each flexible protruding membrane (311, 311′) is folded to be connected to the mounting area (21), and covers each through-hole (211), and can be converted between a protruding shape protruding upward from the through-hole (211) and a dented shape dented downward from the through-hole (211). |
