Patent ID: 8054262
Filing Date: 2011-11-08
Classification: G09G

Abstract:
1. A liquid crystal display device, comprising: a liquid crystal display panel; a data driving unit; a gate driving unit; a timing controller; a common voltage generator; and a common voltage output unit comprising a common voltage generator generating a common voltage having predetermined level, and a common voltage output controller controls an output of the common voltage according to a gate output enable signal inputted from the timing controller, wherein the common voltage output controller prevents application of the common voltage to a common electrode when the gate output enable signal is in a first state and a data signal is not applied to a pixel electrode, and applies the common voltage to the common electrode when the gate output enable signal is in a second state and the data signal is applied to the pixel electrode, wherein the common voltage output unit prevents outputting of the common voltage at a blanking interval during which data is not provided.