Patent ID: 7797026

Claim:
A portable electronic device, comprising: a main body having a first keyboard and a second keyboard, the first keyboard and the second keyboard being on a surface of the main body, the main body having a longitudinal axis along a long side of the surface of the main body and a transverse axis along a short side of the surface of the main body a sub-body having a large display screen on a first surface of the sub-body and a pivot seat with a cutout from said sub-body and located in the longitudinal side of the sub-body where said cutout has at least two opposite walls; and a biaxial hinge, inserted in the cutout and coupled to the main body with the sub-body, the biaxial hinge having a first swivel axis being horizontal or perpendicular to the longitudinal axis and connected to two opposite walls of the cutout; and a second swivel axis approximately normal to both the longitudinal axis and the transverse axis, so as to alternatively turn over the sub-body along the first swivel axis and swivel the sub-body along the second swivel axis the sub-body being capable of rotating via the first swivel axis and the second swivel axis, so that the longitudinal side of the sub-body is perpendicular to the longitudinal axis of the main body.