Display device

Patent metadata

Field	Value
Publication number	US-12067205-B2
Application number	US-202318106997-A
Country	US
Kind code	B2
Filing date	Feb 7, 2023
Priority date	Jul 26, 2019
Publication date	Aug 20, 2024
Grant date	Aug 20, 2024

Abstract

A display device including a substrate having an active area and a non-active area having first to fourth areas, a light-emitting element on the substrate, a touch layer having a main touch area overlapping the active area, and an encapsulation layer between the light-emitting element and the touch layer, in which the first area is between the active area and the second area, the third area is between the second and fourth areas, the touch layer includes touch electrodes and touch lines connected to the touch electrodes, the touch lines include a first touch line part overlapping the first area and a second touch line part overlapping the third area, the first touch line part includes first and second touch conductive layers of the touch layer, and the second touch line part includes the first touch conductive layer and does not include the second touch conductive layer.

First claim

What is claimed is:

1. A display device comprising:
a substrate having an active area and a non-active area, the non-active area including a first area, a second area, a third area, and a fourth area;
a light-emitting element disposed on the substrate and overlapping the active area;
a touch layer disposed on the substrate and having a main touch area overlapping the active area; and
an encapsulation layer disposed between the light-emitting element and the touch layer;
wherein the first area is disposed between the active area and the second area,
wherein the third area is disposed between the second area and the fourth area,
wherein the second area and the third area are disposed between the first area and the fourth area,
wherein the touch layer includes touch electrodes disposed in the main touch area and touch lines connected to the touch electrodes, a portion of the touch lines overlapping the non-active area, and
wherein the touch lines include a first touch line part overlapping the first area of the substrate and a second touch line part overlapping the third area of the substrate,
wherein the touch layer includes:
a first touch conductive layer disposed on the substrate;
a touch insulating layer disposed on the first touch conductive layer; and
a second touch conductive layer disposed on the touch insulating layer, the second touch conductive layer including the touch electrodes;

wherein the first touch line part includes the first touch conductive layer and the second touch conductive layer, and
wherein the second touch line part includes the first touch conductive layer and does not include the second touch conductive layer.

2. The display device of claim 1 , wherein the second area is an area where the substrate is bent, and
wherein the fourth area is an area where a plurality of pads are disposed on the substrate.

3. The display device of claim 1 , wherein the touch insulating layer covers the second touch line part.

4. The display device of claim 1 , wherein:
the first touch conductive layer includes:
a first touch connection electrode disposed in the main touch area and forming the first touch line part; and
a second touch connection electrode forming the second touch line part;

the second touch conductive layer includes a third touch connection electrode forming the first touch line part; and
the first touch connection electrode and the third touch connection electrode overlap each other in a thickness direction and are electrically connected to each other.

5. The display device of claim 1 , wherein the touch lines further include a third touch line part overlapping the second area of the substrate,
wherein the third touch line part includes a source connection electrode, and
wherein the source connection electrode is disposed on a layer different from the first touch conductive layer and the second touch conductive layer.

6. The display device of claim 5 , wherein the source connection electrode is electrically connected to the first touch line part and the second touch line part.

7. The display device of claim 6 , further comprising:
an insulating layer disposed between the substrate and the light-emitting element; and
a display conductive layer disposed between the substrate and the insulating layer,
wherein the display conductive layer includes an electrode electrically connected to the light-emitting element and the source connection electrode.

8. The display device of claim 7 , further comprising:
a via layer disposed between the source connection electrode and the substrate; and
a bending protective layer disposed on the source connection electrode,
wherein the bending protective layer overlaps a portion of the first touch line part.

9. The display device of claim 5 , wherein the encapsulation layer does not overlap the second area of the substrate.

10. The display device of claim 5 , wherein the non-active area further includes a fifth area disposed between the second area and the third area,
wherein the touch lines further include a fourth touch line part overlapping the fifth area of the substrate, and
wherein the fourth touch line part includes the first touch conductive layer and the second touch conductive layer.

11. The display device of claim 10 , wherein the first touch line part and the second touch line part are electrically connected via the source connection electrode and the fourth touch line part.

12. The display device of claim 10 , wherein the encapsulation layer does not overlap the fifth area of the substrate.

13. A display device comprising:
a display member including a substrate having an active area and a non-active area around the active area, and light-emitting elements disposed on the substrate, the non-active area including a bending region; and
a touch member disposed on the display member and having a main touch area,
wherein the touch member includes touch electrodes disposed in the main touch area and touch lines connected to the touch electrodes, the main touch area corresponding to the active area and a portion of the touch lines corresponding to the non-active area,
wherein the touch lines include a first touch line part disposed on a first side of the bending region and a second touch line part disposed on a second side of the bending region, the first side of the bending region being interposed between the active area and the second side of the bending region, and
wherein the number of conductive layer forming the first touch line part is greater than the number of conductive layer forming the second touch line part.

14. The display device of claim 13 , wherein:
the touch member includes:
a first touch insulating layer disposed on the display member;
a first touch conductive layer disposed on the first touch insulating layer;
a second touch insulating layer disposed on the first touch conductive layer; and
a second touch conductive layer disposed on the second touch insulating layer;

the first touch line part includes the first touch conductive layer and the second touch conductive layer electrically connected to the first touch conductive layer; and
the second touch line part includes the first touch conductive layer.

15. The display device of claim 14 , wherein:
the first touch conductive layer includes:
a (1-1) touch connection electrode disposed in the main touch area and forming the first touch line part; and
a (1-2) touch connection electrode forming the second touch line part;

the second touch conductive layer includes a (2-1) touch connection electrode forming the first touch line part; and
the (1-1) touch connection electrode and the (2-1) touch connection electrode overlap each other in a thickness direction and are electrically connected to each other through a first contact hole.

16. The display device of claim 15 , further comprising a polarization member disposed on the first side of the bending region on the first touch line part,
wherein the polarization member includes a polarizing layer and a polarizing adhesive layer disposed on the polarizing layer and directly contacting the (2-1) touch connection electrode.

17. The display device of claim 16 , wherein the touch lines further include a third touch line part disposed between the first touch line part and the second touch line part,
wherein the third touch line part includes a source connection electrode disposed in the bending region and electrically connected to the (2-1) touch connection electrode through a second contact hole.

18. The display

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Ki Cheol
• Bang Gyeong Nam
• Jeong Hwan Hee

Classifications

• G06F2203/04102

  Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper · CPC title

• H10K71/60

  Forming conductive regions or layers, e.g. electrodes · CPC title

• H10K59/131

  Interconnections, e.g. wiring lines or terminals · CPC title

• H10K59/40

  OLEDs integrated with touch screens · CPC title

• G06F3/0443

  using a single layer of sensing electrodes · CPC title