Image display device and method for driving the same

An image display device comprising:

• a display panel configured to selectively display a 2D image and a 3D image, the display panel including a subpixel disposed at a crossing between a pair of gate lines and a data line;
• a panel driver including a gate driver for driving the pair of gate lines and a data driver for driving the data line;
• a controller configured to differently control the panel driver in response to a mode selection signal;
• and
• a patterned retarder configured to divide light from the display panel into first polarized light and second polarized light,
• wherein in a 2D mode, an auxiliary display unit of the subpixel is charged to a common voltage in response to an auxiliary scan pulse supplied to an auxiliary gate line of the pair of gate lines, and then the auxiliary display unit and a main display unit of the subpixel are charged to a 2D data voltage for the 2D image by a main scan pulse supplied to a main gate line of the pair of gate lines,
• wherein in a 3D mode, the main display unit and the auxiliary display unit are charged to a 3D data voltage for the 3D image in response to the main scan pulse, and then the auxiliary display unit is charged to the common voltage by the auxiliary scan pulse.