公开(公告)号：US08792609B2

公开(公告)日：2014-07-29

申请号：US13942088

申请日：2013-07-15

Applicant: LG Display Co., Ltd.

Inventor： Jung-Eun Ahn ,  Bo-Young Jung ,  Ji-Eun Chae

IPC: G11C19/00

CPC classification number: G11C19/00 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2320/0233 ,  G11C19/28

Abstract: A shift register is discussed in which a pull-up switching device is turned off positively in a period in which no scan pulse is forwarded for securing drive stability and prevents a picture quality from becoming poor. The shift register in one embodiment includes stages having any one of first and second start pulses, and any one of first to fourth clock pulses to forward a scan pulse in succession, wherein the first and second start pulses are in gate high voltage states for two horizontal periods, with the second start pulse forwarded with a delay of one horizontal period than the first start pulse. The first to fourth clock pulses are in gate high voltages for two horizontal periods, with one horizontal period delay to one another.

Abstract translation: 讨论了一种移位寄存器，其中上拉开关器件在没有扫描脉冲被转发以确保驱动器稳定性并且防止图像质量变差的时段内被正向关断。 一个实施例中的移位寄存器包括具有第一和第二起始脉冲中的任何一个的阶段以及连续地转发扫描脉冲的第一至第四时钟脉冲中的任何一个，其中第一和第二起始脉冲处于栅极高电压状态 水平周期，第二起始脉冲以比第一起始脉冲一个水平周期的延迟转发。 第一至第四时钟脉冲在两个水平周期的栅极高电压中，一个水平周期延迟到另一个。