Display panel, display device, and tiled display apparatus

Patent metadata

Field	Value
Publication number	US-12563876-B2
Application number	US-202218007404-A
Country	US
Kind code	B2
Filing date	Feb 25, 2022
Priority date	Feb 25, 2022
Publication date	Feb 24, 2026
Grant date	Feb 24, 2026

Abstract

A display panel includes: a backplane, light-emitting devices, first electrodes, and connection traces. The backplane includes a first surface, a second surface opposite thereto, and side surfaces connecting the two surfaces. At least one of the side surfaces is a selected side surface. The light-emitting devices are disposed on the first surface. The first electrodes are disposed on the first surface and are proximate to the selected side surface. Each connection trace includes a first trace segment, a second trace segment, and a third trace segment that are connected in sequence. The first trace segment is disposed on the first surface, and the first trace segment is electrically connected to a first electrode. The second trace segment is disposed on the selected side surface. The third trace segment is disposed on the second surface, and is configured to be electrically connected to a flexible printed circuit.

First claim

What is claimed is:

1 . A display panel, comprising:
a backplane, the backplane including a first surface, a second surface opposite to the first surface, and a plurality of side surfaces connecting the first surface with the second surface, wherein at least one of the plurality of side surfaces is a selected side surface; a plurality of light-emitting devices, the plurality of light-emitting devices being disposed on the first surface; a plurality of first electrodes, the plurality of first electrodes being disposed on the first surface and proximate to the selected side surface; and a plurality of connection traces, each connection trace including a first trace segment, a second trace segment and a third trace segment that are connected in sequence, wherein the first trace segment being disposed on the first surface, and the first trace segment is electrically connected to a first electrode of the plurality of first electrodes; the second trace segment is disposed on the selected side surface; and the third trace segment is disposed on the second surface, and the third trace segment is configured to be electrically connected to a flexible printed circuit, wherein the third trace segment includes a first sub-segment, a second sub-segment, and a third sub-segment that are connected in sequence, the first sub-segment is proximate to the selected side surface; and first sub-segments of the plurality of connection traces are arranged in parallel, and third sub-segments of the plurality of connection traces are arranged in parallel; and an extension direction of the first sub-segment intersects an extension direction of the second sub-segment, and the extension direction of the second sub-segment intersects an extension direction of the third sub-segment; and an angle formed between the extension direction of the first sub-segment and the extension direction of the second sub-segment is in a range from 90° to 180°.

2 . The display panel according to claim 1 , wherein the third trace segment further includes a first connection portion, the first sub-segment and the second sub-segment are connected through the first connection portion;
the first connection portion includes a first inner side surface and a first outer side surface that are opposite to each other, an orthographic projection of the first inner side surface on the backplane is a first inner edge, and an orthographic projection of the first outer side surface on the backplane is a first outer edge, the first sub-segment includes an inner side surface of the first sub-segment and an outer side surface of the first sub-segment that are opposite to each other, an orthographic projection of the inner side surface of the first sub-segment on the backplane is an inner edge of the first sub-segment, and an orthographic projection of the outer side surface of the first sub-segment on the backplane is an outer edge of the first sub-segment; and the second sub-segment includes an inner side surface of the second sub-segment and an outer side surface of the second sub-segment that are opposite to each other, an orthographic projection of the inner side surface of the second sub-segment on the backplane is an inner edge of the second sub-segment, and an orthographic projection of the outer side surface of the second sub-segment on the backplane is an outer edge of the second sub-segment; wherein the first inner edge is connected to the inner edge of the first sub-segment and the inner edge of the second sub-segment, and the first outer edge is connected to the outer edge of the first sub-segment and the outer edge of the second sub-segment.

3 . The display panel according to claim 2 , wherein the first inner edge is a curve, and/or the first outer edge is a curve;
or the first inner edge is an arc, and/or the first outer edge is an arc.

4 . The display panel according to claim 2 , wherein
the first inner edge includes a plurality of broken line segments that are connected in sequence end-to-end, wherein
an angle formed between a broken line segment, in the plurality of broken line segments of the first inner edge, connected to the inner edge of the first sub-segment and the inner edge of the first sub-segment is in a range from 170° to 177°;
an angle formed between two broken line segments that are connected to each other in the plurality of broken line segments of the first inner edge is in a range from 170° to 177°; and
an angle formed between a broken line segment, in the plurality of broken line segments of the first inner edge, connected to the inner edge of the second sub-segment and the inner edge of the second sub-segment is in a range from 170° to 177°;
and/or the first outer edge includes another plurality of broken line segments that are connected in sequence end-to-end, wherein
an angle formed between a broken line segment, in the plurality of broken line segments of the first outer edge, connected to the outer edge of the first sub-segment and the outer edge of the first sub-segment is in a range from 170° to 177°;
an angle formed between two broken line segments that are connected to each other in the plurality of broken line segments of the first outer edge is in a range from 170° to 177°; and
an angle formed between a broken line segment, in the plurality of broken line segments of the first outer edge, connected to the outer edge of the second sub-segment and the outer edge of the second sub-segment is in a range from 170° to 177°.

5 . The display panel according to claim 1 , wherein an angle formed between the extension direction of the third sub-segment and the extension direction of the second sub-segment is in a range from 90° to 180°.

6 . The display panel according to claim 5 , wherein the third trace segment further includes a second connection portion, the third sub-segment is connected to the second sub-segment through the second connection portion;
the second connection portion includes a second inner side surface and second outer side surface that are opposite to each other, an orthographic projection of the second inner side surface on the backplane is a second inner edge, and an orthographic projection of the second outer side surface on the backplane is a second outer edge, the third sub-segment includes an inner side surface of the third sub-segment and an outer side surface of the third sub-segment that are opposite to each other, an orthographic projection of the inner side surface of the third sub-segment on the backplane is an inner edge of the third sub-segment, and an orthographic projection of the outer side surface of the third sub-segment on the backplane is an outer edge of the third sub-segment; and the second sub-segment includes an inner side surface of the second sub-segment and an outer side surface of the second sub-segment that are opposite to each other, an orthographic projection of the inner side surface of the second sub-segment on the backplane is an inner edge of the second sub-segment, and an orthographic projection of the outer side surface of the second sub-segment on the backplane is an outer edge of the second sub-segment; wherein the second inner edge is connected to the inner edge of the third sub-segment and the inner edge of the second sub-segment, and the third outer edge is connected to the outer edge of the third sub-segment and the outer edge of the second sub-segment.

7 . The display panel according to claim 6 , wherein the second inner edge is a curve, and/or the second outer edge is a curve;
or the second inner edge is an arc, and/or the second outer edge is an arc.

8 . The display panel according to claim 6 , wherein
the second inner edge includes a plurality of broken line segments that are connec

Assignees

• Boe Mled Technology Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Wang Lili
• Liu Chao
• Zhai Ming
• Wang Jing
• Feng Sha
• Jia Mingming
• Guo Shaofei
• Fu Bao
• Meng Qiuhua
• Qi Qi
• Shi Lingyun
• Sun Haiwei

Classifications

• H10W90/00 Primary

  Package configurations · CPC title

• H10D86/00

  Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates · CPC title

• H10H20/857 Primary

  Interconnections, e.g. lead-frames, bond wires or solder balls · CPC title

• G02F1/133

  Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements (arrangements or circuits for control of liquid crystal elements in a matrix, not structurally associated with these elements G09G3/36) · CPC title

• G09G3/32

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