3 dimensional image display device and driving method thereof

PURPOSE: A 3D image display device and an operating method thereof are provided to improve the efficiency of 3D image display by controlling the brightness of surroundings by actively controlling an opening time of a shutter member. CONSTITUTION: An integrated control unit delivers an input image signal to a timing control unit. A shutter timing determining unit(710) receives a control source signal for a shutter member from the outside or the integrated control unit. The shutter timing determining unit generates shutter timing information. A shutter timing control unit(700) delivers a shutter member control signal to a shutter member(60) following the reception of the shutter timing information. An opening time is controlled for a frame of a left eye shutter or a right eye shutter according to the shutter timing information. [Reference numerals] (60) Shutter member; (700) Shutter timing control unit; (710) Shutter timing determination unit