Display panel driving circuit,申请号US20070802092-传众专利搜索

Display panel driving circuit

申请公布号：US7514877(B2)

申请号：US20070802092

申请日期：2007.05.18

申请公布日期：2009.04.07

申请人：

OKI SEMICONDUCTOR CO., LTD.

发明人：NAKAYAMA AKIRA

分类号：G09G3/10;G01R19/00;G05F1/00;G09G3/36

主分类号：G09G3/10

摘要：A display panel driving circuit includes an input part for amplifying an input on-off signal so as to generate a first on-off voltage signal, a voltage signal generation part for generating a second on-off voltage signal which is varied in response to variations of the first on-off voltage signal, and an output part generating a push-pull output voltage as a driving voltage so as to drive a display panel in response to the first and second on-off voltages. The display panel driving circuit further includes a controlling part for controlling the voltage signal generation part so that a difference between on and off voltages of the second on-off voltage signal is not smaller than a predetermined voltage. Therefore, the push-pull output voltage whose response speed is well balanced when the push-pull output voltage increases and decreases can be generated without increasing electric power consumption and a circuit area.