Light-emitting diode display panel and light-emitting diode display device

Patent metadata

Field	Value
Publication number	US-12412517-B2
Application number	US-202418680259-A
Country	US
Kind code	B2
Filing date	May 31, 2024
Priority date	May 6, 2021
Publication date	Sep 9, 2025
Grant date	Sep 9, 2025

Abstract

Disclosed are a display panel and a display device. The display panel includes a display area, a plurality of light-emitting elements located in the display area, and at least one driver circuit located in the display area; the plurality of light-emitting elements includes a plurality of light-emitting element rows extend in a first direction and arranged in a second direction, where the first direction and the second direction intersect; the at least one driver circuit includes a plurality of shift register circuits disposed in cascade and a shift register circuit of the plurality of shift register circuits is located between adjacent light-emitting element rows of the plurality of light-emitting element rows.

First claim

What is claimed is:

1. A display panel, comprising a display area;
wherein the display panel further comprises:
a light-emitting element, wherein the light-emitting element is located in the display area;
a pixel circuit, wherein the pixel circuit is located in the display area and the pixel circuit is configured to drive the light-emitting element,
a driver circuit, wherein the driver circuit is located in the display area and the driver circuit is configured to provide a drive signal to the pixel circuit; and
pixel circuit rows, wherein at least one of the pixel circuit rows comprises a plurality of pixel circuits arranged along a first direction, the pixel circuit rows are arranged along a second direction, the first direction and the second direction intersect;
wherein, the driver circuit comprises a plurality of stages of shift register circuits cascaded, at least one stage of shift register circuit is located between adjacent pixel circuit rows;
wherein the display panel comprises a plurality of driver circuits, and the plurality of driver circuits are arranged along the first direction;
wherein the driver circuit comprises a scan driver circuit and a light-emitting control driver circuit, the scan driver circuit provides a scan signal for the pixel circuit, and the light-emitting control driver circuit provides a light-emitting control signal for the pixel circuit; and
the plurality of driver circuits comprise at least one scan driver circuit and at least one light-emitting control driver circuit;
wherein the at least one scan driver circuit and the at least one light-emitting control driver circuit are alternately arranged along the first direction.

2. The display panel of claim 1 , wherein the driver circuit comprises a scan driver circuit and the scan driver circuit provides a scan signal for the pixel circuit; and
the display panel comprises a plurality of scan driver circuits and the plurality of scan driver circuits are arranged along the first direction.

3. The display panel of claim 2 , wherein
the plurality of scan driver circuits drive the pixel circuit at different positions.

4. The display panel of claim 1 , wherein
the driver circuit comprises a light-emitting control driver circuit, and the light-emitting control driver circuit provides a light-emitting control signal for the pixel circuit; and
the display panel comprises a plurality of light-emitting control driver circuits, and the plurality of light-emitting control driver circuits are arranged along the first direction.

5. The display panel of claim 4 , wherein
the plurality of light-emitting control driver circuits drive the pixel circuit at different positions.

6. The display panel of claim 1 , wherein at least one of the following is satisfied:
along the first direction, the display panel comprises at least two scan driver circuits; or,
along the first direction, the display panel comprises at least two light-emitting control driver circuits.

7. The display panel of claim 1 , wherein
along the first direction, at least one light-emitting control driver circuit is spaced between at least two scan driver circuits; or,
along the first direction, at least one scan driver circuit is spaced between at least two light-emitting control driver circuits.

8. The display panel of claim 1 , wherein
along the first direction, the display panel comprises a first area, a second area and a third area in sequence;
the first area comprises at least one light-emitting control driver circuit;
the second area comprises at least one scan driver circuit; and
the third area comprises at least one light-emitting control driver circuit.

9. The display panel of claim 1 , wherein
along the first direction, the display panel comprises a first area, a second area and a third area in sequence;
the first area comprises at least one scan driver circuit;
the second area comprises at least one light-emitting control driver circuit; and
the third area comprises at least one scan driver circuit.

10. The display panel of claim 1 , wherein
along the first direction, the display panel comprises a first area, a second area, a third area and a fourth area in sequence;
the first area comprises at least one light-emitting control driver circuit;
the second area comprises at least one scan driver circuit;
the third area comprises at least one light-emitting control driver circuit; and
the fourth area comprises at least one scan driver circuit.

11. The display panel of claim 1 , wherein at least one of the following is satisfied:
at least one scan driver circuit and at least one light-emitting control driver circuit share a high-level signal trace; or,
at least one scan driver circuit and at least one light-emitting control driver circuit share a low-level signal trace.

12. The display panel of claim 1 , wherein
among the plurality of driver circuits, at least one stage of shift register circuit of a driver circuit and at least one stage of shift register circuit of another driver circuit are located between same adjacent pixel circuit rows.

13. The display panel of claim 1 , wherein
a number of the shift register circuits in the driver circuit is greater than or equal to a number of the pixel circuit rows; or,
a number of the shift register circuits in the driver circuit is smaller than a number of the pixel circuit rows.

14. The display panel of claim 1 , wherein
the driver circuit comprises a scan driver circuit, and the scan driver circuit comprises a plurality of stages of scan shift register circuits cascaded;
wherein a number of the scan shift register circuits is one more than a number of the pixel circuit rows.

15. The display panel of claim 1 , wherein
the driver circuit comprises a light-emitting control driver circuit, and the light-emitting control driver circuit comprises a plurality of stages of light-emitting control shift register circuits;
wherein, a number of the light-emitting control shift register circuits is equal to a number of the pixel circuit rows.

16. The display panel of claim 1 , wherein
at least two stages of shift register circuits cascaded are arranged between one pair of adjacent pixel circuit rows.

17. The display panel of claim 1 , wherein
at least two stages of shift register circuits cascaded in the driver circuit overlap along the second direction; or,
at least two stages of shift register circuits cascaded in the driver circuit do not overlap along the second direction.

18. A display device comprising a display panel, wherein the display panel comprises a display area;
wherein the display panel further comprises:
a light-emitting element, wherein the light-emitting element is located in the display area;
a pixel circuit, wherein the pixel circuit is located in the display area and the pixel circuit is configured to drive the light-emitting element,
a driver circuit, wherein the driver circuit is located in the display area and the driver circuit is configured to provide a drive signal to the pixel circuit; and
pixel circuit rows, wherein at least one of the pixel circuit rows comprises a plurality of pixel circuits arranged along a first direction, the pixel circuit rows are arranged along a second direction, the first direction and the second direction intersect;
wherein, the driver circuit comprises a plurality of shift register circuits cascaded, at least one shift register circuit is located between adjacent pixel circuit rows;
wherein the display panel comprises a plurality of driver circuits,

Assignees

• Hubei Yangtze Ind Innovation Center Of Advanced Display Co Ltd

Inventors

• Dai Wenjun
• Xing Liang
• Wu Tianyi

Classifications

• G02F1/136204

  Arrangements to prevent high voltage or static electricity failures · CPC title

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G2300/0408

  Integration of the drivers onto the display substrate · CPC title

• G09G2310/0291

  Details of output amplifiers or buffers arranged for use in a driving circuit · CPC title

• G09G2310/0286

  Details of a shift registers arranged for use in a driving circuit · CPC title