Patent ID: 7573728

Claim:
A three-dimensional dual-axis hinge module for assembling into a foldable device having an upper cover and a body, the three-dimensional dual-axis hinge module comprising: a dual-axis hinge comprising an independent upper component and an independent lower component, wherein the independent upper component and the independent lower component form a perpendicular connecting section, an upper hinge and a lower hinge after the independent upper component and the independent lower component are assembled, wherein the upper hinge is extended from the perpendicular connecting section and approximately perpendicular to the perpendicular connecting section, the lower hinge is extended from the perpendicular connecting section and approximately perpendicular to the perpendicular connecting section and the upper hinge is approximately perpendicular to the lower hinge; and a dual-axis circuit board comprising a connecting section circuit board, an upper circuit board and a lower circuit board, the connecting section circuit board further comprising a raised section, an upper transition section and a lower transition section, wherein the dual-axis circuit board is assembled between the independent upper component and the independent lower component of the dual-axis hinge, and the raised section, the upper transition section and the lower transition section are fixed in the perpendicular connecting section; wherein the dual-axis circuit board further comprises an upper folding mark and a lower folding mark, and the raised section, the upper transition section, the lower transition section, the upper folding mark and the lower folding mark are fixed with the perpendicular connecting section, wherein the upper folding mark is fixed at a corner formed with the perpendicular connecting section and the upper hinge, and the lower folding mark is fixed at another corner formed with the perpendicular connecting section and the lower hinge to prevent the dual-axis circuit board from sliding inside the perpendicular connecting section.