| 摘要 |
<p>The present invention relates to a common voltage compensation circuit of a liquid crystal display device and more specifically, to a common voltage compensation circuit and a liquid crystal display device which implements both high resolution and high frequency, and improves the common voltage signal deviation caused by an RC-delay between wirings formed on a liquid panel of a large area, narrow bezel typed liquid display device. According to an embodiment of the present invention, it comprises a first and a second common voltage supply lines that are formed to a first direction on both ends of the substrate, a third common voltage supply line that is connected to either an end of the first or second common voltage supply lines which is formed towards the first direction, a liquid panel including a feedback line that is formed toward to the first direction and is either connected to the end of the first or second common voltage supply lines, a first common voltage compensation circuit of which an output terminal is connected to the ends of the first and second common voltage supply lines, and a second common voltage compensation circuit of which the end of the third common voltage supply line is connected to the output terminal. Thus, the present invention may apply different compensation ratio according to the location of the common supply lines on the liquid panel so that it can improve the image quality caused by the RC-delay of the common voltage supply lines and to provide the common voltage compensation circuit and a liquid crystal display device to achieve high quality images.</p> |
