US 12,302,721 B2
Display substrate and display device
Yi Qu, Beijing (CN); Tinghua Shang, Beijing (CN); Lulu Yang, Beijing (CN); Meng Zhang, Beijing (CN); Siyu Wang, Beijing (CN); Xiaofeng Jiang, Beijing (CN); Yupeng He, Beijing (CN); Huijun Li, Beijing (CN); and Xin Zhang, Beijing (CN)
Assigned to CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed by CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed on Oct. 30, 2023, as Appl. No. 18/497,437.
Application 18/497,437 is a continuation of application No. 17/427,194, granted, now 11,844,251, previously published as PCT/CN2021/087459, filed on Apr. 15, 2021.
Claims priority of application No. 202010479764.9 (CN), filed on May 29, 2020.
Prior Publication US 2024/0065061 A1, Feb. 22, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H10K 59/131 (2023.01); G09G 3/3233 (2016.01)
CPC H10K 59/131 (2023.02) [G09G 3/3233 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2320/0233 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display substrate, comprising:
a base substrate; and
a plurality of sub-pixels in an array on the base substrate;
wherein each of the plurality of sub-pixels comprises a pixel circuit and a light-emitting element, the pixel circuit is configured to drive the light-emitting element to emit light, the pixel circuits of the plurality of sub-pixels are arranged in a first direction and in a second direction, and the first direction is different from the second direction;
the pixel circuit comprises a drive sub-circuit and a compensation sub-circuit;
the drive sub-circuit comprises a control electrode, a first terminal, and a second terminal, and is configured to be connected to the light-emitting element and to control a drive current flowing through the light-emitting element;
the compensation sub-circuit comprises a control electrode, a first electrode, and a second electrode, the control electrode of the compensation sub-circuit is configured to receive a scan signal, the first electrode and the second electrode of the compensation sub-circuit are connected to the second terminal and the control electrode of the drive sub-circuit, respectively, and the compensation sub-circuit is configured to perform threshold compensation on the drive sub-circuit in response to the scan signal;
the light-emitting element comprises a first drive electrode, a light-emitting layer, and a second driving electrode which are stacked in sequence, and the first drive electrode of the light-emitting element is located on a side of the light-emitting layer near the base substrate;
the compensation sub-circuit further comprises a connection portion which is located between the first electrode and the second electrode of the compensation sub-circuit and connects the first electrode to the second electrode; and the first electrode, the second electrode, and the connection portion are all located on a same side of the control electrode of the compensation sub-circuit with respect to the base substrate;
the plurality of sub-pixels comprises a first sub-pixel, and the first drive electrode of a light-emitting element of the first sub-pixel comprises a first main body portion comprising a first side parallel to a certain direction and a first protruding portion protruding from the first side of the first main body portion, and the first protruding portion at least partially overlaps with the connection portion of the compensation sub-circuit of the first sub-pixel in a direction perpendicular to the base substrate; the light-emitting element of the first sub-pixel is configured to emit green light; and
in the first direction, a maximum dimension of the first protruding portion is ⅙-¼ of a maximum dimension of the first drive electrode of the light-emitting element.