Patent ID: 8305187

Claim:
A variable resistor device of a display device, the display device including a display panel on which a pixel electrode and a common electrode are patterned, the variable resistor device comprising: a variable resistor configured to vary a common voltage applied to the common electrode, the variable resistor including a plurality of resistance terminals on a circuit board and a variable resistance control unit configured to control resistances between resistance terminals of the plurality of resistance terminals that are electrically connected to one another, the variable resistance control unit including a crown unit, a crown axis combined with the crown unit and configured to guide up/down movement of the crown unit, a first motion variable unit combined with the crown axis, a second motion variable unit selectively combined with the first motion variable unit and configured to vary a variable resistance due to rotary power transmitted from the crown unit, and a housing unit configured to accommodate the crown unit, the crown axis, the first motion variable unit, and the second motion variable unit.