Patent ID: 8648778
Filing Date: 2014-02-11
Classification: G09G

Abstract:
1. A liquid crystal display, comprising: a liquid crystal panel comprising liquid crystal cells in a matrix array at crossings of data lines and gate lines, where a screen of the liquid crystal panel is divided into two blocks, on which one block is controlled as a data write block and another block is controlled as a black insertion block to be driven by an impulsive driving method; a timing controller for receiving a digital video data and synchronous signals, and generating a source output enable signal, a first gate start pulse, a second gate start pulse comprising a pulse width different from that of the first gate start pulse, a gate shift clock, a first gate output enable signal, and a second gate output enable signal; a data driving circuit for providing a data voltage to the data lines in response to a first logic value of the source output enable signal, and any one black gray voltage of a charge share voltage to the data lines in response to a second logic value of the source output enable signal or precharge voltage to the data lines in response to the first logic value of the source output enable signal, the data voltage being supplied to the data write block, the any one black gray voltage being supplied to the black insertion block; and a gate driving circuit for providing a first gate pulse in synchronization with the data voltage and in response to the first gate start pulse, the gate shift clock, and the first gate output enable signal and for providing a second gate pulse in synchronization with the black gray voltage to the gate lines, the second gate start pulse, the gate shift clock, and the second gate output enable signal, wherein the timing controller includes: wherein a duty ratio of the normal source output enable signal is smaller than that of the source output enable signal, and wherein a duty ratio of the normal gate output enable signal is smaller than that of the first and second gate output enable signal.