Patent ID: 8325175
Filing Date: 2012-12-04
Classification: G09G

Abstract:
1. A liquid crystal display device, comprising: a gate high voltage generating circuit for generating a gate high voltage by using n pumping units and supplying the gate high voltage through an output line, where n is a natural number greater than unity; a voltage stabilizing unit for generating a gate high voltage within a range of a highest preset value by using an output voltage of the (n−1)th pumping unit in a case the gate high voltage generated at the gate high voltage generating circuit exceeds the highest preset value; and a gate voltage modulating circuit for modulating the gate high voltage within the range of the highest preset value in response to a gate modulating control signal to provide a modulated gate high voltage even in a case in which a data enable signal is not normal, which is identical to a case in which the data enable signal is normal, wherein a high state and a low state of the gate modulating control signal alternates repeatedly, regardless of whether the data enable signal is normal or not, and wherein the gate high voltage generating circuit comprises: