| 摘要 |
On one display panel, first and second display areas are provided. To display information on each area, an X-driver, a Y-driver, and an LCD controller are provided in each of the display areas. If a display cover is overlaid on the display panel, a predetermined switch is turned on. A CPU sends an instruction to a power supply controller in accordance with the ON-state of the switch. The power supply controller stops power supply to the X- and Y-drivers, and the LCD controller used in said first display area to save power by supplying power to drivers and controllers of a display area that is not covered.
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