Patent ID: 7777706
Filing Date: 2010-08-17
Classification: G09G

Abstract:
1. An impulse driving method for a liquid crystal display (LCD) panel, the LCD panel comprising a plurality of pixels driven by a data driver, the impulse driving method comprising: transmitting a start horizontal signal and a load signal to the data driver; storing a normal signal and an auxiliary signal at one cycle time of the start horizontal signal, wherein the start horizontal signal is used to control the data driver to store the normal signal and the auxiliary signal, and the one cycle time of the start horizontal signal is equal to one of a plurality of scan line times of the LCD panel corresponding to a horizontal synchronous period of a scan line; and outputting the stored normal signal to drive the pixels when the load signal is disabled during the one cycle time of the start horizontal signal, and outputting the stored auxiliary signal to drive the pixels when the load signal is enabled during the same one cycle time of the start horizontal signal, wherein the load signal is used to control the data driver to correspondingly output the stored normal signal and the stored auxiliary signal at the one cycle time of the start horizontal signal, and one cycle time of the load signal is equal to the one cycle time of the start horizontal signal, wherein the start horizontal signal is enabled and disabled just once for each scan line time during the one cycle time, and the load signal is enabled and disabled just once for each scan line time of the LCD panel during the one cycle time, and wherein the normal signal is a pixel data signal and the auxiliary signal is a black data signal as the LCD panel is normally black or a white data signal as the LCD panel is normally white, and wherein disabling times of the load signal as well as the start horizontal signal in the one cycle time of the start horizontal signal both start to occur from the time that the normal signal starts to be loaded into the pixels, and the disabling time of the load signal continuously lasts until a time that the auxiliary signal starts to be loaded into the pixels while the disabling time of the start horizontal signal continuously lasts over the total length of the disabling time of the load signal; and an enabling time of the load signal in the one cycle time of the start horizontal signal starts to occur from the time that the auxiliary signal starts to be loaded into the pixels and continuously lasts until the time a next normal signal starts to be loaded into the pixels, which means a state that the load signal changes from a disable state to an enable state triggers the auxiliary signal to be loaded into the pixels, and during the enabling time of the load signal in the one cycle time of the start horizontal signal, the enabling time of the start horizontal signal starts to occur and continuously lasts until the time that the next normal signal starts to be loaded into the pixels, which means the enabling time of the load signal starts to occur before the enabling time of the start horizontal signal and the load signal and the start horizontal signal only partially overlap, and a state that both the load signal and start horizontal signal change from the enable state to the disable state triggers the next normal signal to be loaded into the pixels.