ELECTRICAL DEVICE, ADVERTISEMENT MEANS TO ELECTRIC DEVICE, FEE CHARGING SYSTEM AND FEE CHARGING METHOD

摘要

PROBLEM TO BE SOLVED: To obtain an electrical device and an advertisement method that can attain energy saving, without losing user-friendliness and efficiently update display of an advertisement or the line. SOLUTION: A mobile phone is provided with a display panel, that is rewritable and has a memory property. The display panel 11 consists of a guide.data display area 11a and an advertisement display area 11b. The advertisement display area 11b displays advertisement information, received through a transmitter-receiver 13 and can maintain its display without receiving supply of power. A user can receive discount of the use charge and discount at purchase of the device.