Portable computer to which different types of flat display panels can be attached.

摘要

In a system of this invention, either a first type flat panel display unit (5, 7, 9) or a second type flat panel display unit (5, 7, 9) which is different in type from the first type flat panel display unit can be selectively, mechanically, and electrically connected and disconnected to and from a base unit (3). The base unit (3) includes a power supply (319) for applying a reference voltage, and applies the reference voltage to a display unit which is mechanically and electrically connected thereto. The first type flat panel display unit (5, 7, 9) is driven by the reference voltage. The second type flat panel display unit (5, 7, 9) includes a voltage converter (503, 903) and is driven by a voltage converted from the reference voltage. With the above arrangement, the system can use a plurality of flat panel display units with one base unit (3).