| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a portable electronic apparatus capable of reducing the propagation of noise to the inner part of a housing, which is generated from the separated portion of a ground layer in a flexible printed board. <P>SOLUTION: A mobile phone 1 includes: a circuit board 70; a first connector 210 to be arranged on a first surface 70a of the circuit board 70; a shield sheet metal member 60 to be arranged on the side of the first surface 70a of the circuit board 70; a key substrate 50 where a conductive layer including signal lines and a ground layer are sequentially laminated from the side of an opposing surface opposite to the first surface 70a; a second connector 220 arranged on the opposing surface of the key substrate 50 so as to be connected to the first connector 210; and one or multiple key switch parts 52 arranged at positions opposite to the shield sheet metal member 60 on the opposing surface of the key substrate 50 and also electrically connected to the signal lines. <P>COPYRIGHT: (C)2012,JPO&INPIT |
