US 11,974,465 B2
Display substrate and display device
Xin Mou, Beijing (CN); and Yongfu Diao, 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 Apr. 3, 2023, as Appl. No. 18/194,921.
Application 18/194,921 is a continuation of application No. 17/576,277, filed on Jan. 14, 2022, granted, now 11,653,530.
Application 17/576,277 is a continuation of application No. 17/256,869, granted, now 11,296,171, issued on Apr. 5, 2022, previously published as PCT/CN2020/132144, filed on Nov. 27, 2020.
Claims priority of application No. PCT/CN2019/122129 (WO), filed on Nov. 29, 2019.
Prior Publication US 2023/0292552 A1, Sep. 14, 2023
Int. Cl. G09G 3/30 (2006.01); G09G 3/20 (2006.01); G09G 3/3233 (2016.01); H10K 59/121 (2023.01); H10K 59/126 (2023.01); H10K 59/131 (2023.01); H10K 71/00 (2023.01); G06F 3/038 (2013.01); H01L 27/12 (2006.01); H10K 59/12 (2023.01); H10K 59/35 (2023.01)
CPC H10K 59/1213 (2023.02) [G09G 3/2003 (2013.01); G09G 3/3233 (2013.01); H10K 59/1216 (2023.02); H10K 59/126 (2023.02); H10K 59/131 (2023.02); H10K 71/00 (2023.02); G06F 3/038 (2013.01); G09G 3/30 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0443 (2013.01); G09G 2310/061 (2013.01); H01L 27/1222 (2013.01); H10K 59/1201 (2023.02); H10K 59/352 (2023.02)] 22 Claims
OG exemplary drawing
 
1. A display substrate comprising:
a base substrate and a plurality of first color sub-pixels, a plurality of second color sub-pixels and a plurality of third color sub-pixels disposed on the base substrate, current efficiency of the first color sub-pixel being less than current efficiency of the second color sub-pixel;
a light emitting control signal line, extending along a first direction;
a data line, extending along a second direction, the first direction being intersected with the second direction; and
a power line, overlapping with the data line in a third direction perpendicular to the base substrate,
wherein at least one sub-pixel comprises an organic light emitting element and a pixel circuit for driving the organic light emitting element,
the organic light emitting element comprises a first electrode, a second electrode and a light emitting layer disposed between the first electrode and the second electrode; the pixel circuit comprises a driving transistor and a first light emitting control transistor, and the pixel circuit further comprises a connection structure,
in at least one second color sub-pixel, a first electrode of the first light emitting control transistor of the second color sub-pixel is electrically connected with the connection structure through a first connection hole, and the connection structure is electrically connected with the second electrode of the second color sub-pixel through a second connection hole;
in at least one third color sub-pixel, the second electrode of the third color sub-pixel does not overlap with a channel of the driving transistor controlling the organic light emitting element of the third color sub-pixel in the third direction.