DISPLAY UNIT OF LIQUID CRYSTAL DISPLAY

摘要

PURPOSE: A display unit of liquid crystal display is provided to stabilize Vcom without mounting additional parts, thereby prevent a flicker or a cross talk phenomenon. CONSTITUTION: A Vcom op-amp(operational amplifier)(143) adjusts the level of Vcom signal and outputs the adjusted Vcom signal to an LCD(liquid crystal display) panel. The Vcom op-amp(143) is formed simultaneously when a buffer(142c) is formed. When the Vcom signal is applied to the Vcom op-amp(143), the Vcom op-amp(143) outputs the adjusted Vcom signal to a common electrode. The resistance of the common electrode changes according to the Vcom voltage, so as to prevent the generation of flicker. The Vcom op-amp applies the stable Vcom signal to the LCD panel without the distortion of signal because the Vcom op-amp(143) is inlaid inside a drive IC(integrated circuit). It is possible to minimize a flicker or a cross talk because the stabilized Vcom voltage is applied to the common electrode.