US 12,406,604 B2
Display substrate, repair method and display device
Maoxiu Zhou, Beijing (CN); Lei Guo, Beijing (CN); Ke Dai, Beijing (CN); Chunxu Zhang, Beijing (CN); Min Cheng, Beijing (CN); Xiaoting Jiang, Beijing (CN); and Haipeng Yang, Beijing (CN)
Assigned to HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., Hefei (CN); and BOE TECHNOLOGY GROUP CO., LTD, Beijing (CN)
Appl. No. 18/264,331
Filed by HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., Anhui (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Sep. 23, 2022, PCT No. PCT/CN2022/120808
§ 371(c)(1), (2) Date Aug. 4, 2023,
PCT Pub. No. WO2024/060186, PCT Pub. Date Mar. 28, 2024.
Prior Publication US 2025/0014491 A1, Jan. 9, 2025
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/20 (2013.01) [G09G 2300/0426 (2013.01); G09G 2310/0267 (2013.01); G09G 2310/0286 (2013.01); G09G 2330/08 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A display substrate, comprising a base substrate and a driving module arranged on the base substrate; wherein the driving module includes N driving circuits connected in series;
the driving circuit includes an input terminal; N is a positive integer;
input terminals of first a stages of driving circuits included in the driving module are electrically connected to an initial voltage line; a is a positive integer;
an input terminal of an nth stage of driving circuit included in the driving module is electrically connected to an output terminal of an (n−m)th stage of driving circuit included in the driving module through an input cascade line; n and m are positive integers, and m is less than n;
the driving module further includes at least one connection line, and the connection line extends along a first direction;
there is an overlapping portion between an orthographic projection of the connection line on the base substrate and an orthographic projection of the initial voltage line on the base substrate;
there is an overlapping portion between the orthographic projection of the connection line on the base substrate and an orthographic projection of the input cascade line on the base substrate,
wherein the driving module includes a plurality of clock signal lines, a plurality of stages of driving circuits and a line collection portion; the driving circuit includes a first driving circuit portion and a second driving circuit portion;
the plurality of clock signal lines, the first driving circuit portion, the line collection portion and the second driving circuit portion are arranged in sequence along a direction close to a display area; the input cascade line is arranged in the line collection portion; the driving circuit includes the first driving circuit portion and the second driving circuit portion, and
wherein the second driving circuit portion includes an output transistor in the driving circuit; the first driving circuit portion includes a pull-up node control sub-circuit, a pull-down node control sub-circuit and an output reset sub-circuit; the pull-up node control sub-circuit is configured to control a potential of the pull-up node, and the pull-down node control sub-circuit is configured to control a potential of the pull-down node, and the output reset sub-circuit is used to reset a driving signal under the control of the potential of the pull-down node.