US 12,283,245 B2
Display substrate and display device
Tinghua Shang, Beijing (CN); Yang Zhou, Beijing (CN); Shun Zhang, Beijing (CN); Huijuan Yang, Beijing (CN); Yi Zhang, Beijing (CN); Ling Shi, Beijing (CN); and Yao Huang, Beijing (CN)
Assigned to CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/274,229
Filed by CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Chengdu (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jul. 31, 2020, PCT No. PCT/CN2020/106427
§ 371(c)(1), (2) Date Mar. 8, 2021,
PCT Pub. No. WO2021/018303, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. PCT/CN2019/098708 (WO), filed on Jul. 31, 2019; and application No. PCT/CN2019/098731 (WO), filed on Jul. 31, 2019.
Prior Publication US 2021/0320156 A1, Oct. 14, 2021
Int. Cl. G09G 3/3258 (2016.01); G09G 3/20 (2006.01); G09G 3/3266 (2016.01); G09G 3/3291 (2016.01); H10K 50/814 (2023.01); H10K 59/121 (2023.01); H10K 59/124 (2023.01); H10K 59/131 (2023.01); H10K 59/35 (2023.01); H10K 59/80 (2023.01); H10K 59/82 (2023.01)
CPC G09G 3/3258 (2013.01) [G09G 3/2003 (2013.01); G09G 3/3266 (2013.01); G09G 3/3291 (2013.01); H10K 50/814 (2023.02); H10K 59/121 (2023.02); H10K 59/1213 (2023.02); H10K 59/124 (2023.02); H10K 59/131 (2023.02); H10K 59/352 (2023.02); H10K 59/353 (2023.02); H10K 59/805 (2023.02); H10K 59/82 (2023.02); G09G 2300/0426 (2013.01); G09G 2300/0443 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A display substrate, comprising:
a base substrate;
a plurality of sub-pixels on the base substrate, wherein each of the plurality of sub-pixels comprises a light emitting element and a pixel circuit for driving the light emitting element, the light emitting element comprises a first electrode, a light emitting layer and a second electrode which are sequentially stacked in a direction close to the base substrate; each second electrode of the light emitting element comprises a main body electrode and a connecting electrode, the plurality of sub-pixels comprise a plurality of first color sub-pixels and a plurality of second color sub-pixels, each of the first color sub-pixels comprises a first effective light emitting region, a shape of the main body electrode of the first color sub-pixel is the same as a shape of the first effective light emitting region, and an orthographic projection of the first effective light emitting region on the base substrate is within an orthographic projection of the main body electrode on the base substrate; each of the second color sub-pixels comprises a second effective light emitting region, a shape of the main body electrode of the second color sub-pixel is the same as a shape of the second effective light emitting region, and an orthographic projection of the second effective light emitting region on the base substrate is within an orthographic projection of the main body electrode on the base substrate;
a plurality of data lines, located at a side of the second electrode of the light emitting element facing the base substrate, wherein each of the plurality of data lines extends in a first direction, and the main body electrode of at least one of the first color sub-pixel and the second color sub-pixel is overlapped with at least two data lines;
a planarization layer, located between a film layer where the plurality of data lines are located and a film layer where the second electrode of the light emitting element is located; and
an interlayer insulating layer, located between the film layer where the plurality of data lines are located and the base substrate,
wherein each of the plurality of sub-pixels comprises a first connecting portion arranged in the same layer as the plurality of data lines,
in the first color sub-pixel, the connecting electrode is connected with the first connecting portion through a first via hole penetrating through the planarization layer, and the first connecting portion is electrically connected with the pixel circuit through a first connecting hole penetrating through the interlayer insulating layer; and in a direction perpendicular to the base substrate, the first via hole and the first connecting hole are not overlapped with the main body electrode, and orthographic projections of the first via hole and the first connection hole on a first straight line extending in the first direction are overlapped with each other;
at least one of the first effective light emitting region and the second effective light emitting region has a shape of a long strip, and extends in a second direction, and an included angle between the second direction and the first direction is in a range from 80 degrees to 100 degrees;
in the second color sub-pixel, the connecting electrode is connected with the first connecting portion through a second via hole penetrating through the planarization layer, the first via hole is located at a side of the first effective light emitting region close to the second effective light emitting region in the first direction, the second via hole is located at a side of the second effective light emitting region close to the first effective light emitting region in the first direction, a first connecting line connecting the first via hole with the second via hole is not parallel to the second direction, and the second electrode of the light emitting element of the first color sub-pixel is not overlapped with the second electrode of the light emitting element of the second color sub-pixel in the second direction;
in the second color sub-pixel, the first connecting portion is electrically connected with the pixel circuit through a second connecting hole penetrating through the interlayer insulating layer, and a second connecting line connecting the first connecting hole with the second connecting hole is parallel to the second direction; and
an included angle between the first connecting line and the second direction is in a range from 5 degrees to 15 degrees.