公开(公告)号：US09767752B2

公开(公告)日：2017-09-19

申请号：US15098078

申请日：2016-04-13

Applicant: Samsung Display Co., Ltd.

Inventor： Kangnam Kim ,  Duc-han Cho ,  Youmee Hyun

IPC: G09G3/36 ,  G11C19/28 ,  G11C19/18

CPC classification number: G09G3/3677 ,  G09G2310/0286 ,  G11C19/184 ,  G11C19/28

Abstract: An n-th driving stage of a gate driving circuit includes a first control transistor being configured to increase a voltage of a first node to a first voltage, a control capacitor having one end connected to the first node, a second control transistor being configured to increase the first voltage of the first node to a second voltage that is higher than the first voltage, a third control transistor being configured to increase a voltage of a second node to a third voltage when being turned on according to the voltage applied to the first node, and an output transistor being configured to output a gate signal of the n-th driving stage when being turned on according to the voltage applied to the second node.

公开(公告)号：US10109252B2

公开(公告)日：2018-10-23

申请号：US15964249

申请日：2018-04-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Duc-han Cho ,  Beomjun Kim ,  Yoonho Kim ,  Noboru Takeuchi ,  Kangnam Kim

IPC: G09G3/36 ,  G11C19/18 ,  G11C19/28

Abstract: A gate driving circuit includes driving stages. Each of the driving stages applies each of gate signals to each of gate lines of a display panel. A k-th (k is a natural number equal to or greater than 2) driving stage includes a first output transistor, a capacitor, and first and second control transistor. The first output transistor includes a control electrode connected to a first node, an input electrode receiving a clock signal, and an output electrode outputting a k-th gate signal. The capacitor is connected between the output electrode of the first output transistor and the control electrode of the first output transistor. The first control transistor applies a first control signal to a second node to control a voltage of the first node before the k-th gate signal is output. The second control transistor is diode-connected between the second node and the first node.

公开(公告)号：US20180247603A1

公开(公告)日：2018-08-30

申请号：US15964249

申请日：2018-04-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Duc-han Cho ,  Beomjun Kim ,  Yoonho Kim ,  Noboru Takeuchi ,  Kangnam Kim

IPC: G09G3/36 ,  G11C19/28 ,  G11C19/18

CPC classification number: G09G3/3677 ,  G09G3/3614 ,  G11C19/184 ,  G11C19/28

Abstract: A gate driving circuit includes driving stages. Each of the driving stages applies each of gate signals to each of gate lines of a display panel. A k-th (k is a natural number equal to or greater than 2) driving stage includes a first output transistor, a capacitor, and first and second control transistor. The first output transistor includes a control electrode connected to a first node, an input electrode receiving a clock signal, and an output electrode outputting a k-th gate signal. The capacitor is connected between the output electrode of the first output transistor and the control electrode of the first output transistor. The first control transistor applies a first control signal to a second node to control a voltage of the first node before the k-th gate signal is output. The second control transistor is diode-connected between the second node and the first node.