Display panel and device with optical component region pixel driving circuits outside the optical component region

Patent metadata

Field	Value
Publication number	US-12439788-B2
Application number	US-202218690784-A
Country	US
Kind code	B2
Filing date	Oct 13, 2022
Priority date	Jul 13, 2022
Publication date	Oct 7, 2025
Grant date	Oct 7, 2025

Abstract

Provided are a display panel and a display device. The display panel includes a display region and light-emitting elements. The display region includes a first display region and an optical component region. The light-emitting elements include first light-emitting elements and second light-emitting elements, where the first light-emitting elements are located in the first display region, and the second light-emitting elements are located in the optical component region. The first display region includes multiple pixel drive unit columns arranged along a first direction, the multiple pixel drive unit columns include a first pixel drive unit column, the first pixel drive unit column includes multiple first pixel driving circuits, and one of the multiple first pixel driving circuits is electrically connected to one of the second light-emitting elements.

First claim

What is claimed is:

1. A display panel, comprising:
a display region comprising a first display region and an optical component region; and
light-emitting elements comprising first light-emitting elements and second light-emitting elements, wherein the first light-emitting elements are located in the first display region, and the second light-emitting elements are located in the optical component region;
wherein the first display region comprises a plurality of pixel drive unit columns arranged along a first direction, the plurality of pixel drive unit columns comprise a first pixel drive unit column, the first pixel drive unit column comprises a plurality of first pixel driving circuits, and one of the plurality of first pixel driving circuits is electrically connected to one of the second light-emitting elements;
wherein the plurality of pixel drive unit columns further comprise a second pixel drive unit column located in the first display region, the second pixel drive unit column comprises a plurality of second pixel driving circuits, and the plurality of second pixel driving circuits are electrically connected to the first light-emitting elements;
the second pixel drive unit column comprises a first sub-second pixel drive unit column, the display panel further comprises a first non-display region, and the first sub-second pixel drive unit column is located between the first non-display region and the optical component region along a second direction, wherein the second direction intersects with the first direction; and
the first display region further comprises a plurality of data signal lines, the plurality of data signal lines comprise a first data signal line and a second data signal line, the first data signal line is electrically connected to the plurality of first pixel driving circuits, the second data signal line is electrically connected to the plurality of second pixel driving circuits in the first sub-second pixel drive unit column, and the first data signal line is electrically connected to the second data signal line;
wherein the first data signal line and the second data signal line are electrically connected in the first non-display region through a first connecting portion and connected in the display region through a second connecting portion;
wherein the first display region comprises a first signal line extending along the first direction, and the second connecting portion overlaps the first signal line in a thickness direction of the display panel.

2. The display panel of claim 1 , wherein the first pixel drive unit column further comprises a plurality of first dummy pixel driving circuits.

3. The display panel of claim 2 , wherein in the first pixel drive unit column, at least one of the plurality of first pixel driving circuits and at least one of the plurality of first dummy pixel driving circuits are arranged alternately.

4. The display panel of claim 2 , wherein in the first pixel drive unit column, the plurality of first pixel driving circuits and the plurality of first dummy pixel driving circuits are concentrated separately.

5. The display panel of claim 2 , wherein the first display region further comprises a first dummy data signal line electrically connected to the plurality of first dummy pixel driving circuits, and the first dummy data signal line is configured to be electrically connected to a fixed voltage signal terminal.

6. The display panel of claim 2 , wherein the plurality of first dummy pixel driving circuits are reused as repairing pixel driving circuits.

7. The display panel of claim 1 , wherein a light-emitting element density of the optical component region is the same as a light-emitting element density of the first display region.

8. The display panel of claim 1 , wherein in the display panel, a total number of pixel driving circuits is greater than a total number of the light-emitting elements.

9. The display panel of claim 1 , wherein along the first direction, at least part of the plurality of first pixel driving circuits in the first pixel drive unit column overlap the optical component region.

10. The display panel of claim 1 , wherein
the plurality of pixel drive unit columns are uniformly arranged in the first direction.

11. The display panel of claim 1 , wherein the plurality of pixel drive unit columns comprise a third pixel drive unit column, and the third pixel drive unit column comprises a plurality of second dummy pixel driving circuits; and
the third pixel drive unit column is located between the first non-display region and the optical component region along the second direction.

12. The display panel of claim 11 , wherein the first display region further comprises a second dummy data signal line electrically connected to the plurality of second dummy pixel driving circuits, and the second dummy data signal line is configured to be electrically connected to a fixed voltage signal terminal.

13. The display panel of claim 1 , wherein
the first display region further comprises a plurality of pixel drive unit rows arranged along the second direction, the plurality of pixel drive unit rows comprise a first pixel drive unit row and a second pixel drive unit row, the first pixel drive unit row comprises the plurality of second pixel driving circuits arranged continuously, the second pixel drive unit row comprises a plurality of third dummy pixel driving circuits arranged continuously, one of the plurality of first pixel driving circuits is electrically connected to one of the second light-emitting elements through a third connecting portion, and the third connecting portion overlaps the second pixel drive unit row in a thickness direction of the display panel.

14. The display panel of claim 13 , wherein the plurality of pixel drive unit rows are uniformly arranged in the second direction.

15. The display panel of claim 1 , wherein at least two of the plurality of first pixel driving circuits are electrically connected to a same one of the second light-emitting elements.

16. A display device, comprising a display panel
wherein the display panel comprises:
a display region comprising a first display region and an optical component region; and
light-emitting elements comprising first light-emitting elements and second light-emitting elements, wherein the first light-emitting elements are located in the first display region, and the second light-emitting elements are located in the optical component region;
wherein the first display region comprises a plurality of pixel drive unit columns arranged along a first direction, the plurality of pixel drive unit columns comprise a first pixel drive unit column, the first pixel drive unit column comprises a plurality of first pixel driving circuits, and one of the plurality of first pixel driving circuits is electrically connected to one of the second light-emitting elements;
wherein the plurality of pixel drive unit columns further comprise a second pixel drive unit column located in the first display region, the second pixel drive unit column comprises a plurality of second pixel driving circuits, and the plurality of second pixel driving circuits are electrically connected to the first light-emitting elements;
the second pixel drive unit column comprises a first sub-second pixel drive unit column, the display panel further comprises a first non-display region, and the first sub-second pixel drive unit column is located between the first non-display region and the optical component region along a second direction, wherein the second direction intersects with the first direction; and
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Assignees

• Wuhan Tianma Micro Electronics Co Ltd

Inventors

• Ma Yangzhao
• Dai Hao

Classifications

• G09G2300/0413

  Details of dummy pixels or dummy lines in flat panels · CPC title

• G09G2330/08

  Fault-tolerant or redundant circuits, or circuits in which repair of defects is prepared · CPC title

• G09G2300/0861

  with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes · CPC title

• G09G2300/0842

  forming a memory circuit, e.g. a dynamic memory with one capacitor · CPC title

• G09G3/32

  semiconductive, e.g. using light-emitting diodes [LED] · CPC title