公开(公告)号：US10269290B2

公开(公告)日：2019-04-23

申请号：US15680416

申请日：2017-08-18

Applicant: BOE Technology Group Co., Ltd.

Inventor： Guangliang Shang ,  Mingfu Han ,  Haoliang Zheng ,  Han-Seung- Woo ,  Im-Yun- Sik ,  Jing Lv ,  Yinglong Huang ,  Jun-Jung- Mok ,  Xue Dong ,  Zhichong Wang ,  Xing Yao ,  Lijun Yuan ,  Zhihe Jin

IPC: G09G3/36 ,  G09G3/20 ,  G11C19/28 ,  G09G3/3266

Abstract: Embodiments of the present disclosure provide a shift register unit, a driving method thereof, a gate driving circuit, and a display device. The shift register unit comprises an input circuit, a reset circuit, a plurality of output circuits, a plurality of pull-down circuits and a plurality of pull-down control circuits. During a first time period, all of signals output by the plurality of output circuits are valid. During a second time period, at least one of the signals output by the plurality of output circuits is invalid, wherein the second time period comprises a first sub-period and a second sub-period, and the state of at least one of the signals output by the plurality of output circuits during the first sub-period is opposite to the state thereof during the second sub-period. The shift register unit may enable transistors in a pixel circuit to switch between ON and OFF states, so as to extend lifetime of the transistors.

公开(公告)号：US20180190180A1

公开(公告)日：2018-07-05

申请号：US15680416

申请日：2017-08-18

Applicant: BOE Technology Group Co., Ltd.

Inventor： Guangliang Shang ,  Mingfu Han ,  Haoliang Zheng ,  Han-Seung- Woo ,  Im-Yun- Sik ,  Jing Lv ,  Yinglong Huang ,  Jun-Jung- Mok ,  Xue Dong ,  Zhichong Wang ,  Xing Yao ,  Lijun Yuan ,  Zhihe Jin

IPC: G09G3/20 ,  G11C19/28

CPC classification number: G09G3/2092 ,  G09G3/3266 ,  G09G3/3677 ,  G09G2300/0809 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/043 ,  G09G2330/02 ,  G11C19/28

Abstract: Embodiments of the present disclosure provide a shift register unit, a driving method thereof, a gate driving circuit, and a display device. The shift register unit comprises an input circuit, a reset circuit, a plurality of output circuits, a plurality of pull-down circuits and a plurality of pull-down control circuits. During a first time period, all of signals output by the plurality of output circuits are valid. During a second time period, at least one of the signals output by the plurality of output circuits is invalid, wherein the second time period comprises a first sub-period and a second sub-period, and the state of at least one of the signals output by the plurality of output circuits during the first sub-period is opposite to the state thereof during the second sub-period. The shift register unit may enable transistors in a pixel circuit to switch between ON and OFF states, so as to extend lifetime of the transistors.