US 12,272,414 B2
Shift register and method for driving the same
Xuehuan Feng, Beijing (CN); and Yongqian Li, Beijing (CN)
Assigned to HEFEI BOE JOINT TECHNOLOGY CO., LTD., Hefei (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed by Hefei BOE Joint Technology Co., Ltd., Anhui (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed on Nov. 7, 2023, as Appl. No. 18/503,575.
Application 18/503,575 is a continuation of application No. 17/791,748, granted, now 11,848,064, previously published as PCT/CN2020/139717, filed on Dec. 26, 2020.
Prior Publication US 2024/0071541 A1, Feb. 29, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G11C 19/28 (2006.01); G09G 3/20 (2006.01); G09G 3/3266 (2016.01)
CPC G11C 19/28 (2013.01) [G09G 3/20 (2013.01); G09G 3/3266 (2013.01); G09G 2310/0267 (2013.01); G09G 2310/0286 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A shift register comprising a first scan unit, a leakage prevention unit, and a leakage prevention input unit, wherein
the first scan unit includes:
a first input circuit electrically connected to an input signal terminal, a first pull-up node, and a first leakage prevention node; the first input circuit is configured to, in response to an input signal received at the input signal terminal, transmit the input signal to the first pull-up node;
the leakage prevention input unit is electrically connected to a first voltage signal terminal, a second voltage signal terminal, and an leakage prevention input node; the leakage prevention input unit is configured to: transmit a first voltage signal received at the first voltage signal terminal to the leakage prevention input node, and transmit a second voltage signal received at the second voltage signal terminal to the leakage prevention input node; wherein the first voltage signal and the second voltage signal are different; and
the leakage prevention unit is electrically connected to the first pull-up node, the first leakage prevention node, and the leakage prevention input node; the leakage prevention unit is configured to transmit one of the first voltage signal and the second voltage signal from the leakage prevention input node to the first leakage prevention node under a control of a voltage of the first pull-up node.