| 摘要 |
PROBLEM TO BE SOLVED: To provide a portable electronic device which a user can comfortably use by suppressing a temperature rise in the surface of the device caused by heat from a heat source. SOLUTION: A portable electronic device includes: a first casing; a second casing which is disposed opposed to one of surfaces of the first casing and can change a position relative to the first casing while maintaining a state where opposite surfaces are opposed, and a heat source disposed in the second casing. The surface of the second casing includes a first region which is covered with the first casing in a first state where the first and second casings are opposed and is exposed to the outside in a second state where the position relative to the first casing is changed and an area of the opposed surfaces of the first and second casings decreases from the first state, and a second region which is always exposed to the outside in both of the first and second states. At least a part of the heat source is disposed in a position corresponding to the first region. COPYRIGHT: (C)2011,JPO&INPIT |
