| 摘要 |
PURPOSE:To cleary distinguish display mode and to reduce input operation of each mode by putting each diode indifferent luminous condition at each specified mode in a control unit. CONSTITUTION:On a board 19 of a display panel 9, two-color light emitting diode(LED) 20 is fixed in such a way as to face a recessed part 18. The two- color LED 20 holds a red emitting part and green emitting part in a container, and uses an element which can change luminous condition of whole of the container from red to green, varying the impressed voltage to each diode individually. On a first display 10A, a mode specifying key part for specifying one of the plurality of display mode of an inventory control device 3, that is, input model, cancel mode, stock confirmation mode, timer mode and lock mode, and a time displaying part 22 are arranged. On a second display 10B, 36 compartments 14 in total, 4 columns vertically and 9 rows horizontally, are provided, on each of which is printed illustrations of different kinds of foods. |
