Display device

Patent metadata

Field	Value
Publication number	US-12127449-B2
Application number	US-202016937038-A
Country	US
Kind code	B2
Filing date	Jul 23, 2020
Priority date	Dec 18, 2019
Publication date	Oct 22, 2024
Grant date	Oct 22, 2024

Abstract

A display device includes: a substrate that includes an island portion, a first connector that extends in a first direction from the island portion and a second connector that extends from the island portion in a second direction that crosses the first direction; a display unit disposed on the island portion and that includes at least one thin film transistor and at least one display element connected to the at least one thin film transistor; and connecting wires disposed on the first connector and the second connector and connected to the display unit, wherein at least one of the connecting wires is disposed on a same layer as a semiconductor layer of the at least one thin film transistor.

First claim

What is claimed is:

1. A display device, comprising:
a substrate that includes an island portion, a first connector that extends from the island portion in a first direction, and a second connector that extends from the island portion in a second direction that crosses the first direction;
a display unit that includes at least one thin film transistor disposed on the island portion and at least one display element connected to the at least one thin film transistor; and
connecting wires disposed on the first connector and the second connector and connected to the display unit, wherein each of a semiconductor layer of the at least one thin film transistor and at least one of the connecting wires are disposed directly on a same layer, and
wherein the connecting wires include a first wire and a second wire that overlap each other in a thickness direction that is normal to the first direction and the second direction and extend parallel to each other where they overlap, the first wire on the first connector is disposed on the same layer as the semiconductor layer and the second wire on the first connector is electrically connected to an opposite electrode of the at least one display element.

2. The display device of claim 1 , wherein a plurality of insulating layers are interposed between the first wire and the second wire.

3. The display device of claim 1 , wherein
a first data line, a second data line, and a third data line connected to the display unit are disposed on the island portion, and
the connecting wires of the first connector comprise:
an intermediate conductive pattern connected to the first data line that is disposed on a same layer as the intermediate conductive pattern;
a lower conductive pattern disposed below the intermediate conductive pattern and connected to the second data line; and
an upper conductive pattern disposed on the intermediate conductive pattern and connected to the third data line.

4. The display device of claim 3 , wherein at least one insulating layer is interposed between the upper conductive pattern and the intermediate conductive pattern.

5. The display device of claim 3 , wherein the lower conductive pattern and the first wire are spaced apart from each other in a direction parallel to an upper surface of the substrate.

6. The display device of claim 3 , wherein
the lower conductive pattern includes a first conductive pattern and a second conductive pattern with at least one first insulating layer interposed therebetween, and
at least one second insulating layer is interposed between the second conductive pattern and the intermediate conductive pattern.

7. The display device of claim 6 , wherein the first conductive pattern and the second conductive pattern extend to the island portion and are connected to each other through a contact hole that penetrates the at least one first insulating layer.

8. The display device of claim 3 ,
wherein the connecting wires are also disposed on a third connector that extends from the island portion in a direction parallel to the first direction,
wherein the third connector comprises:
the lower conductive pattern connected to the first data line;
the upper conductive pattern connected to the second data line; and
the intermediate conductive pattern connected to the third data line.

9. The display device of claim 1 , wherein
the second wire on the second connector is electrically connected to the opposite electrode of the display element, and
the first wire on the second connector is disposed on and overlaps the second wire in the thickness direction, wherein the second wire is disposed on the same layer as the semiconductor layer.

10. The display device of claim 9 , wherein an insulating layer is interposed between the first wire and the second wire.

11. The display device of claim 9 , wherein
the connecting wires further include at least one scan line that transmits a scan signal, and
the at least one scan line is disposed on a first insulating layer that covers the second wire.

12. The display device of claim 11 , wherein the at least one scan line and the second wire are spaced apart from each other in a direction parallel to an upper surface of the substrate.

13. The display device of claim 11 ,
wherein the at least one scan line includes a first scan line and a second scan line,
wherein the first scan line is disposed on the first insulating layer that covers the second wire, and the second scan line is disposed on a second insulating layer that covers the first scan line.

Assignees

• Samsung Display Co Ltd

Inventors

• Won Byeonghee
• Kim Sangwoo
• Shin Jaemin
• Lee Gyujeong

Classifications

• H10K77/111

  Flexible substrates · CPC title

• G09G2300/0809

  Several active elements per pixel in active matrix panels · CPC title

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G2310/0202

  Addressing of scan or signal lines · CPC title

• G09G2380/02

  Flexible displays · CPC title