HINGE DEVICE OF FOLDABLE MOBILE DEVICE USING FLEXIBLE DISPLAY PANEL

A hinge device of the present invention comprises: a housing positioned between an end of a first body and an end of a second body, which interwork and move relative to each other; first and second hinge blades fixed to the first and second bodies, respectively, and rotatably supported by the housing, respectively, so as to make rotating movements by a predetermined angle between "an unfolded position" in which the first and second bodies are on the same horizontal line and "a folded position" in which the first and second bodies face and fold onto each other; and first and second sloping plates installed on the first and second hinge blades, respectively, and configured to interwork by pressurization during rotational movements of the first and second hinge blades so as to move between a horizontal position in which same are aligned with horizontal lines of the first and second bodies in the "unfolded position" and a sloping position in which same are disposed to slope from the horizontal lines of the first and second bodies, respectively, such that a folding space is formed between the first and second hinge blades in the "folded position". According to the present invention, a predetermined radius of curvature is formed on a folding portion of the flexible display panel when the first and second bodies are folded, and the outside and inside shapes of the first and second bodies can be parallel to each other.