US 12,306,508 B2
Display substrate, display device, and manufacturing method
Changhan Hsieh, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 18/573,588
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jun. 29, 2021, PCT No. PCT/CN2021/102994
§ 371(c)(1), (2) Date Dec. 22, 2023,
PCT Pub. No. WO2023/272474, PCT Pub. Date Jan. 5, 2023.
Prior Publication US 2024/0319553 A1, Sep. 26, 2024
Int. Cl. G02F 1/1362 (2006.01); G02F 1/1337 (2006.01); G02F 1/1343 (2006.01); G02F 1/1368 (2006.01); H10K 10/46 (2023.01)
CPC G02F 1/136286 (2013.01) [G02F 1/133707 (2013.01); G02F 1/134318 (2021.01); G02F 1/134363 (2013.01); G02F 1/134372 (2021.01); G02F 1/136209 (2013.01); G02F 1/136295 (2021.01); G02F 1/1368 (2013.01); H10K 10/481 (2023.02)] 13 Claims
OG exemplary drawing
 
1. A display substrate, comprising a base substrate and a plurality of pixels arranged at a side of the base substrate, wherein each pixel comprises:
an organic thin film transistor comprising a gate electrode, an organic semiconductor layer, a source/drain electrode;
a first electrode comprising a plurality of first hollowed-out structures; and
an organic protection layer covering the first electrode and the organic thin film transistor, and filling the first hollowed-out structure;
wherein the pixel comprises a second electrode arranged at a side of the organic protection layer away from the first electrode;
the first electrode comprises a plurality of first electrode strips extending in a first direction and electrically coupled to each other, and the first hollowed-out structure is arranged between adjacent first electrode strips;
the second electrode comprises a plurality of second electrode strips extending in the first direction and electrically coupled to each other, and a plurality of second hollowed-out structures each arranged between adjacent second electrode strips; and
an area of an orthogonal projection of the second hollowed-out structure onto the base substrate is less than an area of an orthogonal projection of the first electrode strip onto the base substrate, and the orthogonal projection of the second hollowed-out structure onto the base substrate is arranged within the orthogonal projection of the first electrode strip onto the base substrate;
wherein the display substrate further comprises a gate line electrically coupled to the gate electrode and made of a material different from the gate electrode;
wherein the display substrate further comprises a connection electrode arranged at a same layer as, and insulated from, the second electrode, wherein the gate line is arranged at a side of the connection electrode away from the organic protection layer and is in contact with and electrically coupled to the connection electrode; and
the connection electrode is electrically coupled to the gate electrode through a via hole, so that the gate line is electrically coupled to the gate electrode.