Display panel and display device
Provided is a display panel. The display panel includes a base substrate and a plurality of pixel circuits disposed on the base substrate. At least two pixel circuits in a same column are coupled with a same first initial power line, such that only a small quantity of signal lines need to be disposed on the base substrate.
1. A display panel, comprising:
a base substrate;
a plurality of light-emitting elements disposed on a side of the base substrate;
a plurality of first initial power lines, a plurality of first reset signal lines, a plurality of second initial power lines, a plurality of second reset signal lines, a plurality of data signal lines, a plurality of gate drive lines, a plurality of drive power lines, and a plurality of light-emitting control lines which are disposed on a side of the base substrate; and
a plurality of pixel circuits disposed on a side of the base substrate and arranged in an array, each of the plurality of pixel circuits comprising a first reset circuit and a drive circuit;
wherein the first reset circuit is coupled with a first reset signal line, a first initial power line, and a driving node, and is configured to transmit a first initial power signal provided by the first initial power line to the driving node in response to a first reset signal provided by the first reset signal line; the drive circuit is coupled with the driving node and a light-emitting element, and is configured to transmit a drive signal to the light-emitting element based on an electric potential of the driving node; and
among a plurality of pixel circuits in a same column, first reset circuits comprised in at least two pixel circuits share a same first initial power line; and among all first reset circuits sharing a same first initial power line, a target first reset circuit is coupled with the first initial power line, and other first reset circuits except the target first reset circuit are coupled with the target first reset circuit, wherein the target first reset circuit is a first reset circuit of a pixel circuit in a first row;
each of the plurality of pixel circuits comprises a semiconductor layer, a first gate metal layer, a second gate metal layer, a first source-drain metal layer, and a second source-drain metal layer that are disposed on a side of the base substrate and stacked in a direction distal from the base substrate in sequence, wherein the semiconductor layer configured to form two adjacent pixel circuits comprises two independent parts, and the other first reset circuits except the target first reset circuit are coupled with the target first reset circuit through the first source-drain metal layer;
wherein the first gate metal layer is configured to form a gate electrode coupled with a gate drive line, a capacitor plate, a gate electrode coupled with a light-emitting control line, a gate electrode coupled with a first reset signal line, and a gate electrode coupled with a second reset signal line;
the second gate metal layer is configured to form another capacitor plate, a first initial power line, a second initial power line, and a metal overlapping part, wherein the metal overlapping part is overlapped with a first reset circuit; and
the first source-drain metal layer and the second source-drain metal layer are configured to form the data signal lines and the drive power lines, and different parts which need to be coupled in a pixel circuit are connected through connecting holes.
2. The display panel according to claim 1 , wherein first reset circuits comprised in every two adjacent pixel circuits share a same first initial power line; and
each first reset circuit comprises a reset transistor, wherein a gate electrode of the reset transistor is coupled with a first reset signal line; a second electrode of the reset transistor is coupled with a driving node of a pixel circuit to which the reset transistor belongs; and between two reset transistors coupled with a same first initial power line, a first electrode of one reset transistor is coupled with the first initial power line, and a first electrode of the other reset transistor is coupled with a second electrode of the one reset transistor.
3. The display panel according to claim 1 , wherein all first reset circuits sharing a same first initial power line are coupled with the first initial power line.
4. The display panel according to claim 3 , wherein first reset circuits comprised in every two adjacent pixel circuits share a same first initial power line; and
each first reset circuit comprises a reset transistor, wherein a gate electrode of the reset transistor is coupled with a first reset signal line; a second electrode of the reset transistor is coupled with a driving node of a pixel circuit to which the reset transistor belongs; and a first electrode of the reset transistor is coupled with the first initial power line.
5. The display panel according to claim 2 , wherein the reset transistor is a single-gate transistor; and an active layer material of the single-gate transistor comprises an oxide material.
6. The display panel according to claim 1 ,
wherein each of the plurality of pixel circuits further comprises a second reset circuit, wherein the second reset circuit is coupled with a second reset signal line, a second initial power line, and a light-emitting element, and is configured to transmit a second initial power signal provided by the second initial power line to the light-emitting element in response to a second reset signal provided by the second reset signal line.
7. The display panel according to claim 6 , wherein all first reset circuits sharing a same first initial power line are coupled with the first initial power line; and among a plurality of pixel circuits in a same column, second reset circuits comprised in at least two pixel circuits are coupled with a same second initial power line; and
the same first initial power line coupled with the first reset circuits and the same second initial power line coupled with the second reset circuits share a same line.
8. The display panel according to claim 7 , wherein two first reset circuits comprised in every two adjacent pixel circuits are coupled with a same first initial power line;
two second reset circuits comprised in every two adjacent pixel circuits are coupled with a same second initial power line; and
in every two adjacent pixel circuits, a first reset signal line coupled with a first reset circuit comprised in one pixel circuit and a second reset signal line coupled with a second reset circuit comprised in the other pixel circuit share a same line.
9. The display panel according to claim 8 , wherein in every two adjacent pixel circuits, a first reset signal line coupled with a first reset circuit comprised in one pixel circuit and a first reset signal line coupled with a first reset circuit comprised in the other pixel circuit share a same line; and
in every two adjacent pixel circuits, a second reset signal line coupled with a second reset circuit comprised in one pixel circuit and a second reset signal line coupled with a second reset circuit comprised in the other pixel circuit share a same line.
10. The display panel according to claim 6 , wherein among all first reset circuits sharing a same first initial power line, the target first reset circuit is coupled with the first initial power line, and the other first reset circuits except the target first reset circuit are coupled with the target first reset circuit; and
in each of the plurality of pixel circuits, the first reset signal line coupled with the first reset circuit and the second reset signal line coupled with the second reset circuit share a same line.
11. The display panel according to claim 1 ,
wherein the drive circuits is further coupled with a data signal line, a gate drive line, a drive power line, and a light-emitting control line, and is configured to transmit a drive signal to the light-emitting element based on a gate drive signal provided by the gate drive line, a data signal provided by the data signal line, a drive power signal provided by the drive power line, and the electric potential of the driving node; and
drive circuits comprised in at least two pixel circuits sharing a same first initial power line are coupled with different data signal lines.
12. The display panel according to claim 11 , wherein all first reset circuits sharing a same first initial power line are coupled with the first initial power line; and
drive circuits comprised in at least two pixel circuits sharing a same first initial power line are coupled with different drive power lines.
13. The display panel according to claim 11 , wherein among all first reset circuits sharing a same first initial power line, the target first reset circuit is coupled with the first initial power line, and the other first reset circuits except the target first reset circuit are coupled with the target first reset circuit; and
drive circuits comprised in at least two pixel circuits sharing a same first initial power line are coupled with a same drive power line.
14. A display device, comprising: a power supply assembly and a display panel,
wherein the display panel comprises:
a base substrate;
a plurality of light-emitting elements disposed on a side of the base substrate;
a plurality of first initial power lines, a plurality of first reset signal lines, a plurality of second initial power lines, a plurality of second reset signal lines, a plurality of data signal lines, a plurality of gate drive lines, a plurality of drive power lines, and a plurality of light-emitting control lines which are disposed on a side of the base substrate; and
a plurality of pixel circuits disposed on a side of the base substrate and arranged in an array, each of the plurality of pixel circuits comprising a first reset circuit and a drive circuit;
wherein the first reset circuit is coupled with a first reset signal line, a first initial power line, and a driving node, and is configured to transmit a first initial power signal provided by the first initial power line to the driving node in response to a first reset signal provided by the first reset signal line; the drive circuit is coupled with the driving node and a light-emitting element, and is configured to transmit a drive signal to the light-emitting element based on an electric potential of the driving node; and
among a plurality of pixel circuits in a same column, first reset circuits comprised in at least two pixel circuits share a same first initial power line; and among all first reset circuits sharing a same first initial power line, a target first reset circuit is coupled with the first initial power line, and other first reset circuits except the target first reset circuit are coupled with the target first reset circuit, wherein the target first reset circuit is a first reset circuit of a pixel circuit in a first row;
each of the plurality of pixel circuits comprises a semiconductor layer, a first gate metal layer, a second gate metal layer, a first source-drain metal layer, and a second source-drain metal layer that are disposed on a side of the base substrate and are stacked in a direction distal from the base substrate in sequence, wherein the semiconductor layer configured to form two adjacent pixel circuits comprises two independent parts; and the other first reset circuits except the target first reset circuit are coupled with the target first reset circuit through the first source-drain metal layer;
wherein the first gate metal layer is configured to form a gate electrode coupled with a gate drive line, a capacitor plate, a gate electrode coupled with a light-emitting control line, a gate electrode coupled with a first reset signal line, and a gate electrode coupled with a second reset signal line;
the second gate metal layer is configured to form another capacitor plate, a first initial power line, a second initial power line, and a metal overlapping part, wherein the metal overlapping part is overlapped with a first reset circuit; and
the first source-drain metal layer and the second source-drain metal layer are configured to form the data signal lines and the drive power lines, and different parts which need to be coupled in a pixel circuit are connected through connecting holes; and
the power supply assembly is coupled with the display panel and is configured to supply power to the display panel.
15. The display panel according to claim 4 , wherein the reset transistor is a single-gate transistor; and an active layer material of the single-gate transistor comprises an oxide material.
16. The display device according to claim 14 , wherein first reset circuits comprised in every two adjacent pixel circuits share a same first initial power line; and
each first reset circuit comprises a reset transistor, wherein a gate electrode of the reset transistor is coupled with a first reset signal line; a second electrode of the reset transistor is coupled with a driving node of a pixel circuit to which the reset transistor belongs; and between two reset transistors coupled with a same first initial power line, a first electrode of one reset transistor is coupled with the first initial power line, and a first electrode of the other reset transistor is coupled with a second electrode of the one reset transistor.
17. The display device according to claim 14 , wherein all first reset circuits sharing a same first initial power line are coupled with the first initial power line.
18. The display device according to claim 17 , wherein first reset circuits comprised in every two adjacent pixel circuits share a same first initial power line; and
each first reset circuit comprises a reset transistor, wherein a gate electrode of the reset transistor is coupled with a first reset signal line; a second electrode of the reset transistor is coupled with a driving node of a pixel circuit to which the reset transistor belongs; and a first electrode of the reset transistor is coupled with the first initial power line.