公开(公告)号：US20100245314A1

公开(公告)日：2010-09-30

申请号：US12413673

申请日：2009-03-30

Applicant: Der-Ju Hung ,  Cheng-Chung Yeh

Inventor： Der-Ju Hung ,  Cheng-Chung Yeh

IPC: G09G5/00

CPC classification number: G09G3/3688 ,  G09G2310/0251 ,  G09G2310/027 ,  G09G2330/021

Abstract: The present invention relates to a driving circuit for a display panel, which comprises a pre-charge power supply, a pre-charge switch, a buffer circuit, and a plurality of resistive devices. The pre-charge switch is coupled between the pre-charge power supply and a capacitor of the display panel. The buffer circuit is used for buffering a data signal and producing a buffer signal. The plurality of resistive devices is connected in series and coupled to the buffer circuit, and produces a plurality of driving signals therebetween according to the buffer signal. The driving circuit first closes the pre-charge switch to make the pre-charge power supply charge the capacitor. Then, one of the plurality of driving signals charges the capacitor. Thereby, the driving time can be shortened, and power of the display can be saved by avoiding power consumption on resistors.

Abstract translation: 本发明涉及一种用于显示面板的驱动电路，其包括预充电电源，预充电开关，缓冲电路和多个电阻装置。 预充电开关耦合在预充电电源和显示面板的电容器之间。 缓冲电路用于缓冲数据信号并产生缓冲信号。 多个电阻器件串联连接并耦合到缓冲电路，并根据缓冲器信号在其间产生多个驱动信号。 驱动电路首先关闭预充电开关，使预充电电源对电容充电。 然后，多个驱动信号中的一个对电容器充电。 因此，可以缩短驱动时间，并且可以通过避免电阻器的功耗来节省显示器的功率。