公开(公告)号：US10102793B2

公开(公告)日：2018-10-16

申请号：US15186107

申请日：2016-06-17

申请人： LG Display Co., Ltd.

发明人： Yong-Ho Jang ,  Woo-Seok Choi

IPC分类号： G09G3/20 ,  G02F1/1345 ,  G09G3/3266 ,  G09G3/36 ,  G11C19/28

摘要： Discussed are a built-in gate driver capable of improving output characteristics of the gate driver by reducing load of clock lines and a display device using the same. The built-in gate driver can include a shift register, a first clock group and a second clock group located in a non-display region of a display panel. The shift register includes a plurality of stages for individually driving gate lines of a display region. The first clock group includes clock lines arranged at a first side of the shift register. The second clock group includes clock lines arranged at a second side of the shift register. Each of the clock lines includes a main line and a branch line branched from the main line and connected to a corresponding stage. A branch line belonging to a corresponding clock group of any one of the first and second clock groups does not overlap a main line belonging to the other clock group.

公开(公告)号：US08867697B2

公开(公告)日：2014-10-21

申请号：US13846478

申请日：2013-03-18

申请人： LG Display Co., Ltd.

发明人： Yong-Ho Jang ,  Seung-Chan Choi ,  Jae-Yong You ,  Woo-Seok Choi

IPC分类号： G11C19/00 ,  G09G3/36 ,  G11C19/28

CPC分类号： G11C19/00 ,  G09G3/3677 ,  G09G2310/0286 ,  G11C19/28

摘要： A shift register is provided in which leakage of charges from a voltage at a set node is prevented to stabilize an output from a stage. The shift register includes stages for sequentially outputting scan pulses. An nth one of the stages includes a node controller for controlling voltages at nodes, and an output unit for outputting any one of a corresponding one of the scan pulses and a first discharging voltage according to the voltages at the nodes. The nodes include set and reset nodes. The node controller of the nth stage includes a first switching device controlled by a voltage supplied to the reset node for supplying a second discharging voltage to the set node, and an inverter circuit controlled by a voltage supplied to the set node for supplying any one of a charging voltage and a third discharging voltage to the reset node.

摘要翻译： 提供了一种移位寄存器，其中防止电荷从设定节点处的电压泄漏以稳定级的输出。 移位寄存器包括用于顺序地输出扫描脉冲的级。 第n个阶段包括用于控制节点处的电压的节点控制器，以及用于根据节点处的电压输出扫描脉冲中的相应一个扫描脉冲和第一放电电压中的任何一个的输出单元。 节点包括设置和重置节点。 第n级的节点控制器包括由提供给复位节点的电压控制的第一开关装置，用于向设定节点提供第二放电电压;以及逆变器电路，由提供给设定节点的电压控制， 充电电压和第三放电电压到复位节点。

公开(公告)号：US10074329B2

公开(公告)日：2018-09-11

申请号：US14835631

申请日：2015-08-25

申请人： LG Display Co., Ltd.

发明人： Yong-Ho Jang ,  Woo-Seok Choi

IPC分类号： G11C19/00 ,  G09G3/36 ,  G11C19/28

CPC分类号： G09G3/3677 ,  G09G2310/0286 ,  G11C19/28

摘要： Disclosed is a shift register capable of preventing charges supplied to a Q node to turn on a pull-up transistor for outputting a scan pulse from leaking outwards. The shift register includes a plurality of stages connected to gate lines formed at a panel. Each stage includes a scan signal generator for generating a scan pulse or a turn-off signal, a scan pulse controller for generating a Q-node control signal for generation of the scan pulse, a Q-node adjuster for preventing the Q-node control signal from leaking outwards during supply of the Q-node control signal to a Q-node connected to the scan signal generator, and a turn-off signal controller for transferring a Qb-node control signal for generation of the turn-off signal to the scan signal generator via a Qb-node when no scan pulse is generated from the scan signal generator.