US 12,408,532 B2
Display panel and display device
Linshan Guo, Wuhan (CN); Yu Cai, Wuhan (CN); and Ping An, Shanghai (CN)
Assigned to Hubei Yangtze Industrial Innovation Center Of Advanced Display Co, Ltd., Wuhan (CN)
Filed by Hubei Yangtze Industrial Innovation Center Of Advanced Display Co., Ltd., Wuhan (CN)
Filed on May 28, 2021, as Appl. No. 17/333,936.
Claims priority of application No. 202110130088.9 (CN), filed on Jan. 29, 2021.
Prior Publication US 2021/0288294 A1, Sep. 16, 2021
Int. Cl. H10K 59/38 (2023.01); H10K 50/86 (2023.01); H10K 59/124 (2023.01); H10K 59/131 (2023.01); H10K 59/80 (2023.01)
CPC H10K 59/38 (2023.02) [H10K 50/86 (2023.02); H10K 59/124 (2023.02); H10K 59/131 (2023.02); H10K 59/80518 (2023.02); H10K 59/873 (2023.02); H10K 59/878 (2023.02); H10K 59/8791 (2023.02); H10K 59/8792 (2023.02); H10K 59/80524 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a substrate;
a plurality of metal parts disposed at a side of the substrate;
a plurality of light-emitting elements disposed at a side of the plurality of metal parts facing away from the substrate, wherein each light-emitting element of the plurality of light-emitting elements comprises a first electrode, a light-emitting portion, and a second electrode;
a plurality of thin film transistors, wherein one thin film transistor of the plurality of thin film transistors comprises a drain, a source, and an active layer, wherein one metal part of the plurality of metal parts is located at a side of at least one of the source or the drain of the one thin film transistor facing light-emitting elements of the plurality of light-emitting elements; and
a connecting electrode, wherein one light-emitting element of the plurality of light-emitting elements is connected to the one thin film transistor through the connecting electrode, and at least a part of the connecting electrode does not overlap with the one metal part in a direction perpendicular to a plane where the substrate is disposed;
wherein the one metal part of the plurality of metal parts overlaps with a respective first electrode in the direction perpendicular to the plane where the substrate is disposed; in a cross section of the display panel that is perpendicular to the plane where the substrate is disposed and passes through both the one metal part and the respective first electrode, the one metal part comprises a first end and a second end along a first direction parallel to the plane where the substrate is disposed, the respective first electrode comprises a third end and a fourth end along the first direction from the first end to the second end of the one metal part, and a distance between the first end and the second end along the first direction is smaller than a distance between the first end to the fourth end along the first direction, and the distance between the first end and the second end along the first direction is smaller than a distance between the second end to the third end along the first direction; and in another cross section of the display panel that is perpendicular to the plane where the substrate is disposed and passes through both the one metal part and the respective first electrode, the one metal part further comprises a fifth end and a sixth end along a second direction parallel to the plane where the substrate is disposed, the respective first electrode further comprises a seventh end and an eighth end along the second direction from the fifth end to the sixth end of the one metal part, and a distance between the fifth end and the sixth end along the second direction is smaller than a distance between the fifth end and the eighth end along the second direction, and the distance between the fifth end and the sixth end along the second direction is smaller than a distance between the sixth end and the seventh end along the second direction, the first direction and the second direction intersecting with each other and both being parallel to the plane where the substrate is disposed.