| 摘要 |
PURPOSE:To prolong the useful time of portable machinery using an LCD device as a display device without increasing the capacity of a battery. CONSTITUTION:A battery 5 for driving a transmission type LCD panel 1 and a solar cell 2 generating electric power with light passed through the panel 1 and functioning as the auxiliary power source of the battery 5 and a charger for the battery 5 are fitted. |
