System for control brightness flicker of parallax barrier lcd which has wide viewing angle and method thereof

PURPOSE: A system for control the brightness flicker of a parallax barrier LCD which has a wide viewing angle, and a method thereof are provided to supply comfortable feeling when listening to a stereoscopic image by minimizing the brightness flicker caused by a division barrier or the view angle movement of an observer in a stereoscopic display. CONSTITUTION: An image input unit(101) obtains a real-time image of an observer, and a control unit(102) extracts the coordinates, the eye position, the image recognition of the observer. According to the control of the controller, a division barrier electrode(104) implements a three-dimensional image. Through the application of the predetermined voltage set in the division barrier electrode, the control unit controls the transmittance property depending on the ON operation of the division barrier. The controller removes brightness flicker.