Skin treatment apparatus and driving method thereof

A skin treatment apparatus comprising:

• a skin accommodating cap having an open lower surface and a cavity therein;
• an electrode pair provided such that, when a target portion of skin is suctioned toward the cavity of the skin accommodating cap, the suctioned skin comes into contact within the cavity of the skin accommodating cap, the electrode pair being disposed to face each other in a first direction;
• a driving unit configured to drive the electrode pair so that the electrode pair can advance into and retreat from an inner direction of the cavity;
• and
• a controller for controlling the driving unit,
• wherein the electrode pair is driven by the driving unit to press inward the skin suctioned into the cavity, thereby increasing an area of contact with the electrode pair.

A driving method of a skin treatment apparatus, the method comprising:

• suctioning a target portion of skin toward a cavity of a skin accommodating cap by the skin treatment apparatus;
• advancing a pressing plate into the cavity from a second direction different from a first direction of an electrode pair disposed in the first direction or an electrode pair disposed in the first direction into an inner side of the cavity so that the suctioned skin comes into contact with the electrode pair within the cavity of the skin accommodating cap;
• and
• irradiating electrical energy through the electrode pair by the skin treatment apparatus.