US 11,735,108 B2
Display substrate and preparation method thereof, display panel, and display device
Libin Liu, Beijing (CN); Mei Li, Beijing (CN); and Hongli Wang, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 16/958,480
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jul. 31, 2019, PCT No. PCT/CN2019/098707
§ 371(c)(1), (2) Date Jun. 26, 2020,
PCT Pub. No. WO2021/016946, PCT Pub. Date Feb. 4, 2021.
Prior Publication US 2022/0383811 A1, Dec. 1, 2022
Int. Cl. G09G 3/3233 (2016.01); H10K 59/131 (2023.01); H01L 27/12 (2006.01); H10K 59/121 (2023.01)
CPC G09G 3/3233 (2013.01) [H10K 59/131 (2023.02); G09G 2300/0426 (2013.01); G09G 2300/0443 (2013.01); G09G 2300/0452 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0852 (2013.01); G09G 2320/0233 (2013.01); H01L 27/124 (2013.01); H10K 59/1213 (2023.02)] 34 Claims
OG exemplary drawing
 
1. A display substrate, comprising a base substrate and a plurality of repeating units on the base substrate,
wherein each of the plurality of repeating units comprises a plurality of sub-pixels, and each of the plurality of sub-pixels comprises a light-emitting element and a pixel circuit for driving the light-emitting element to emit light;
the pixel circuit comprises a drive circuit;
the light-emitting element comprises a first light-emitting voltage application electrode, a second light-emitting voltage application electrode, and a light-emitting layer between the first light-emitting voltage application electrode and the second light-emitting voltage application electrode;
the plurality of sub-pixels comprise a first sub-pixel and a second sub-pixel, a color of light emitted by the light-emitting element of the first sub-pixel is identical to a color of light emitted by the light-emitting element of the second sub-pixel, and a shape of the first light-emitting voltage application electrode of the light-emitting element of the first sub-pixel is different from a shape of the first light-emitting voltage application electrode of the light-emitting element of the second sub-pixel;
an orthographic projection of the first light-emitting voltage application electrode of the light-emitting element of the first sub-pixel on the base substrate at least partially overlaps with an orthographic projection of a control terminal of the drive circuit of the pixel circuit of the first sub-pixel on the base substrate; and
an orthographic projection of the first light-emitting voltage application electrode of the light-emitting element of the second sub-pixel on the base substrate at least partially overlaps with an orthographic projection of a control terminal of the drive circuit of the pixel circuit of the second sub-pixel on the base substrate.