公开(公告)号：US20100103152A1

公开(公告)日：2010-04-29

申请号：US12258957

申请日：2008-10-27

申请人： Chien-Hung Tsai ,  Jia-Hui Wang ,  Jing-Chuan Qiu ,  Chen-Yu Wang

发明人： Chien-Hung Tsai ,  Jia-Hui Wang ,  Jing-Chuan Qiu ,  Chen-Yu Wang

IPC分类号： G09G5/00

CPC分类号： G09G3/3688

摘要： A source driving circuit adapted to drive a display panel is provided herein. The source driving circuit includes a first output buffer and a second output buffer responsible for enhancing signals with different polarities respectively. As for the first output buffer, the first output buffer includes a first differential input stage, a first output stage and a second output stage. The first output stage includes a first level adjustment circuit and a first self-bias providing circuit. The first level adjustment circuit provides a first level voltage according to input signals received by the first differential input stage, such that the second output stage thereby provides a first charge current and a second charge current to output a first output signal based on the first level voltage. The first self-bias providing circuit provides a first biased voltage associated with one input signal to control the first level adjustment circuit to operate.

摘要翻译： 本文提供了适于驱动显示面板的源极驱动电路。 源极驱动电路包括分别负责增强具有不同极性的信号的第一输出缓冲器和第二输出缓冲器。 对于第一输出缓冲器，第一输出缓冲器包括第一差分输入级，第一输出级和第二输出级。 第一输出级包括第一电平调节电路和第一自偏压提供电路。 第一电平调节电路根据由第一差分输入级接收的输入信号提供第一电平电压，使得第二输出级由此提供第一充电电流和第二充电电流，以基于第一电平输出第一输出信号 电压。 第一自偏压提供电路提供与一个输入信号相关联的第一偏置电压以控制第一电平调节电路进行操作。

公开(公告)号：US20090096721A1

公开(公告)日：2009-04-16

申请号：US11871613

申请日：2007-10-12

申请人： Yu-Wen CHIOU ,  Chen-Yu Wang

发明人： Yu-Wen CHIOU ,  Chen-Yu Wang

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G2300/0842 ,  G09G2310/0251

摘要： A pixel circuit has a light emitting diode, a driving transistor, a capacitor, a first switch, a second switch, a third switch, and a forth switch. The driving transistor has a drain, coupled to a second end of the light emitting diode. The capacitor is coupled between a gate of the driving transistor and the ground terminal. The third switch is coupled between the source and the gate of the driving transistor. The fourth switch is coupled between the second end of the light emitting diode and a data line. The first switch is off, the second is on, and the third is on during the reset period; the first switch is off, the second is off, and the third is on during the programming period; and the first switch is on, the second is on, and the third is off during the display period.

摘要翻译： 像素电路具有发光二极管，驱动晶体管，电容器，第一开关，第二开关，第三开关和第四开关。 驱动晶体管具有耦合到发光二极管的第二端的漏极。 电容器耦合在驱动晶体管的栅极和接地端子之间。 第三开关耦合在驱动晶体管的源极和栅极之间。 第四开关耦合在发光二极管的第二端和数据线之间。 第一个开关关闭，第二个开关打开，第三个开关处于复位期间; 第一个开关关闭，第二个关闭，第二个关闭，第三个开关在编程期间关闭; 并且第一开关打开，第二开关接通，第三开关在显示期间关闭。