公开(公告)号：US20150161959A1

公开(公告)日：2015-06-11

申请号：US14531931

申请日：2014-11-03

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chin-Hung Hsu ,  Yu-Ming Chang ,  Chao-Chih Hsiao ,  Po-Ching Li

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G3/3611 ,  G09G2310/08

Abstract: A driving method for a display system with a gate driving device and a panel includes utilizing a plurality of gate driving modules of the gate driving device to generate a plurality of gate driving signals for driving a plurality of scan lines of the panel; and adjusting a plurality of output resistances of the plurality of gate driving modules according to the plurality of gate driving signals.

Abstract translation: 具有栅极驱动装置和面板的显示系统的驱动方法包括利用栅极驱动装置的多个栅极驱动模块产生用于驱动面板的多个扫描线的多个栅极驱动信号; 以及根据所述多个栅极驱动信号调整所述多个栅极驱动模块的多个输出电阻。

公开(公告)号：US09524691B2

公开(公告)日：2016-12-20

申请号：US14724829

申请日：2015-05-29

Applicant: NOVATEK Microelectronics Corp.

Inventor： Po-Ching Li ,  Chao-Chih Hsiao

IPC: H05B37/02 ,  G09G3/36

CPC classification number: G09G3/3677 ,  G09G3/3648 ,  G09G2320/0219 ,  H05B37/02

Abstract: Output stage circuit is added to the gate driving circuit of the LCD. The output stage circuit moderates the falling slope of the gate driving signal so as to reduce the feed-through phenomenon. The output stage circuit includes a discharge unit, coupled to a gate line of the gate driving circuit for discharging the gate line to a first supply voltage; a first charge unit, coupled to the gate line of the gate driving circuit for charging the gate line with a second supply voltage; a second charge unit, coupled to the gate line of the gate driving circuit for charging the gate line with the second supply voltage; and a control circuit for controlling the first and the second charge units, and the discharge unit according to a timing controller of the LCD; wherein the control circuit sequentially turns on the first and the second charge units.

Abstract translation: 输出级电路被添加到LCD的栅极驱动电路。 输出级电路调节栅极驱动信号的下降斜率，以减少馈通现象。 输出级电路包括放电单元，耦合到栅极驱动电路的栅极线，用于将栅极线放电到第一电源电压; 第一充电单元，耦合到栅极驱动电路的栅极线，用于以第二电源电压对栅极线充电; 第二充电单元，耦合到所述栅极驱动电路的栅极线，用于对所述栅极线与所述第二电源电压进行充电; 以及用于控制第一和第二充电单元的控制电路，以及根据LCD的定时控制器的放电单元; 其中所述控制电路顺序地接通所述第一和第二充电单元。

公开(公告)号：US20150287377A1

公开(公告)日：2015-10-08

申请号：US14724829

申请日：2015-05-29

Applicant: NOVATEK Microelectronics Corp.

Inventor： Po-Ching Li ,  Chao-Chih Hsiao

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G3/3648 ,  G09G2320/0219 ,  H05B37/02

Abstract: Output stage circuit is added to the gate driving circuit of the LCD. The output stage circuit moderates the falling slope of the gate driving signal so as to reduce the feed-through phenomenon. The output stage circuit includes a discharge unit, coupled to a gate line of the gate driving circuit for discharging the gate line to a first supply voltage; a first charge unit, coupled to the gate line of the gate driving circuit for charging the gate line with a second supply voltage; a second charge unit, coupled to the gate line of the gate driving circuit for charging the gate line with the second supply voltage; and a control circuit for controlling the first and the second charge units, and the discharge unit according to a timing controller of the LCD; wherein the control circuit sequentially turns on the first and the second charge units.

Abstract translation: 输出级电路被添加到LCD的栅极驱动电路。 输出级电路调节栅极驱动信号的下降斜率，以减少馈通现象。 输出级电路包括放电单元，耦合到栅极驱动电路的栅极线，用于将栅极线放电到第一电源电压; 第一充电单元，耦合到栅极驱动电路的栅极线，用于以第二电源电压对栅极线充电; 第二充电单元，耦合到所述栅极驱动电路的栅极线，用于对所述栅极线与所述第二电源电压进行充电; 以及用于控制第一和第二充电单元的控制电路，以及根据LCD的定时控制器的放电单元; 其中所述控制电路顺序地接通所述第一和第二充电单元。