US 12,406,615 B2
Display panel and display device
Fenxiang Zou, Xiamen (CN); and Jieliang Li, Xiamen (CN)
Assigned to Xiamen Tianma Display Technology Co., Ltd., Xiamen (CN)
Filed by Xiamen Tianma Display Technology Co., Ltd., Xiamen (CN)
Filed on Jan. 31, 2023, as Appl. No. 18/103,737.
Claims priority of application No. 202210771371.4 (CN), filed on Jun. 30, 2022.
Prior Publication US 2023/0196991 A1, Jun. 22, 2023
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2310/0243 (2013.01); G09G 2310/0286 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a driver circuit and a pixel circuit, wherein the driver circuit provides a drive signal for the pixel circuit;
a light-emitting element, wherein the light-emitting element comprises a first electrode and a second electrode; and
a first power signal bus and a second power signal bus, wherein the first power signal bus is configured to transmit a first power signal V1, the second power signal bus is configured to transmit a second power signal V2, and V1≠V2;
wherein the first power signal bus is connected to the pixel circuit, the pixel circuit is connected to the first electrode; and
the second power signal bus at least partially overlaps the driver circuit, and the second power signal bus is not connected to the driver circuit;
wherein the driver circuit comprises a first driver circuit configured to provide a first control signal for the pixel circuit, and the first driver circuit comprises a plurality of stages of first shift registers cascaded with each other in a first direction;
wherein the display panel further comprises a first signal line group connected to the first driver circuit and configured to provide a signal for the first driver circuit, and a first signal line in the first signal line group overlaps a first shift register of the plurality of stages of the first shift registers; and the first signal line group does not comprise the second power signal bus; and
wherein the display panel further comprises an auxiliary connection layer and the driver circuit further comprises a second driver circuit configured to provide a second control signal for the pixel circuit;
the auxiliary connection layer is located between a film where the second electrode is located and a film where the second power signal bus is located, and the second power signal bus is connected to the auxiliary connection layer and is connected to the second electrode through the auxiliary connection layer;
in a second direction, a width of an overlapping region between the first shift register and the first signal line is W11, a width of an overlapping region between the first shift register and the second power signal bus is W12, and the second direction and the first direction intersect, wherein W11<W12;
the second driver circuit comprises a plurality of stages of second shift registers cascaded with each other in the first direction, the second driver circuit is located on a side of the first driver circuit facing a display region of the display panel, and the second drive circuit is located on a same side of the display region as the first drive circuit; and
in the second direction, a width of an overlapping region between a second shift register of the plurality of stages of the second shift registers and the second power signal bus is W22, wherein W12>W22≥0.