公开(公告)号：US08867697B2

公开(公告)日：2014-10-21

申请号：US13846478

申请日：2013-03-18

Applicant: LG Display Co., Ltd.

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

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

CPC classification number: G11C19/00 ,  G09G3/3677 ,  G09G2310/0286 ,  G11C19/28

Abstract: 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.

Abstract translation: 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。