| 摘要 |
<p>PURPOSE:To eliminate a need of the change of a main body-side power supply device and to select a display type in accordance with user's will by internally providing a private power supply device of a display device having the detachable structure on a lap top personal computer. CONSTITUTION:When two or more kinds of display device 16 such as a plasma display device, a liquid crystal display device, and an electroluminescence display device are prepared and they are used as display devices of a personal computer 10, each display device 16 receives the fundamental power and the interface signal from the computer main body 10 and generates the voltage required for driving of the device 16 itself by a private power supply device 14a of the display device 16. Since the private power supply device is internally provided in each display device in this manner, the display device 16 which a user of the personal computer desires is selected without a power supply device 13 in the system.</p> |
