Display device

Patent metadata

Field	Value
Publication number	US-12069883-B2
Application number	US-201917422098-A
Country	US
Kind code	B2
Filing date	Jan 17, 2019
Priority date	Jan 17, 2019
Publication date	Aug 20, 2024
Grant date	Aug 20, 2024

Abstract

A first resin layer is provided to fill a slit formed in at least one inorganic insulating film included in a TFT layer, and extending in a longitudinal direction of a fold portion. A plurality of first routed wires are provided above the first resin layer, and extending in parallel with one another and intersecting with the longitudinal direction of the fold portion. A first protective layer is formed between, and in contact with, the first resin layer and the first routed wires, and provided to at least partially coincide with each of the first routed wires.

First claim

The invention claimed is:

1. A display device, comprising:
a resin substrate defining a display region, a frame region around the display region, a terminal unit at an end of the frame region, and a fold portion provided between the terminal unit and the display region and extending in a single direction;
a TFT layer provided on the resin substrate, and including a plurality of display wires formed in the display region, the display wires extending in parallel with one an other, and intersecting with a longitudinal direction of the fold portion;
a plurality of light-emitting elements provided on the TFT layer and included in the display region;
a plurality of terminals included in the terminal unit and arranged in the longitudinal direction of the fold portion;
at least one inorganic insulating film provided on the resin substrate, included in the TFT layer, and including a slit formed in the longitudinal direction of the fold portion;
a first resin layer provided to fill the slit;
a plurality of first routed wires provided above the first resin layer, extending in parallel with one an other and intersecting with the longitudinal direction of the fold portion, and each electrically connected to a corresponding one of the display wires toward the display region and to a corresponding one of the terminals toward the terminal unit; and
a first protective layer formed between, and in contact with, the first resin layer and the first routed wires, and provided to at least partially coincide with each of the first routed wires, wherein
the first protective layer includes a plurality of first protective layers provided to match a transverse end of each of the first routed wires.

2. The display device according to claim 1 , wherein
the first protective layers are shaped into a plurality of islands arranged in a longitudinal direction of the first routed wires.

3. The display device according to claim 1 , wherein
each of the first protective layers includes a plurality of protective-layer openings arranged in a longitudinal direction of the first routed wires and penetrating the first protective layer.

4. The display device according to claim 2 , wherein
in the fold portion, each of the first routed wires includes a plurality of wire openings arranged in the longitudinal direction of, and penetrating, the first routed wire, and
in the fold portion, each of the first protective layers shaped into the islands includes a corresponding one of a plurality of protective-layer openings penetrating the first protective layer to match a corresponding one of the wire openings.

5. The display device according to claim 1 , wherein
the first protective layers are provided to longitudinally opposing ends of each of the first routed wires to overlap an end of the first resin layer.

6. The display device according to claim 5 , wherein
in the fold portion, each of the first routed wires includes a plurality of wire openings arranged in the longitudinal direction of, and penetrating, the first routed wire, and
each of the first routed wires has a longitudinal center including a plurality of first island layers formed of the same material, and in the same layer, as the first protective layers,
each of the first island layers includes a corresponding one of a plurality of openings penetrating the first island layer to match a corresponding one of the wire openings, and
the first island layers are included in a transverse center of each of the first routed wires, so that the first routed wire and the first resin layer come into contact with each other at transversely opposing ends of the first routed wire.

7. The display device according to claim 1 , further comprising
a plurality of first led wires included in the frame region, extending in parallel with one an other closer toward the display region than toward the fold portion, and provided closer to the resin substrate than to the first routed wires; and
a plurality of second led wires included in the frame region, extending in parallel with one an other closer toward the terminal unit than toward the fold portion, and provided closer to the resin substrate than to the first routed wires, wherein
each of the first routed wires is electrically connected to a corresponding one of the first led wires through a first contact hole formed in the at least one organic insulating film, and to a corresponding one of the second led wires through a second contact hole formed in the at least one organic insulating film.

8. The display device according to claim 5 , wherein
each of the first protective layers connects together the longitudinally opposing ends of one of the first routed wires, and includes in the fold portion a protective-layer opening penetrating the first protective layer.

9. The display device according to claim 1 , wherein
the first protective layer includes a silicon oxide film.

10. The display device according to claim 1 , further comprising:
a second resin layer provided to cover the first routed wires;
a plurality of second routed wires provided above the second resin layer, extending in parallel with one an other and intersecting with the longitudinal direction of the fold portion, and each electrically connected to a corresponding one of the display wires toward the display region and to a corresponding one of the terminals toward the terminal unit; and
a second protective layer formed between, and in contact with, the second resin layer and the second routed wires, and provided to at least partially coincide with each of the second routed wires.

11. The display device according to claim 10 , wherein
the second protective layer includes a plurality of second protective layers provided to match a transverse end of each of the second routed wires.

12. The display device according to claim 11 , wherein
the second protective layers are shaped into a plurality of islands arranged in a longitudinal direction of the second routed wires.

13. The display device according to claim 11 , wherein
each of the second protective layers includes a plurality of protective-layer openings arranged in a longitudinal direction of the second routed wires and penetrating the second protective layer.

14. The display device according to claim 12 , wherein
in the fold portion, each of the second routed wires includes a plurality of wire openings arranged in the longitudinal direction of, and penetrating, the second routed wire, and
in the fold portion, each of the second protective layers shaped into the islands includes a corresponding one of a plurality of protective-layer openings matching a corresponding one of the wire openings.

15. The display device according to claim 11 , wherein
the second protective layers are provided to longitudinally opposing ends of each of the second routed wires to overlap an end of the second resin layer.

16. The display device according to claim 15 , wherein
in the fold portion, each of the second routed wires includes a plurality of wire openings arranged in the longitudinal direction of, and penetrating, the second routed wire,
each of the second routed wires has a longitudinal center including a plurality of second island layers formed of the same material, and in the same layer, as the second protective layers,
each of the second island layers includes a corresponding one of a plurality of openings penetrating the second island layer to match a corresponding one of the wire openings, and
the second island layers are included in a transverse center of each of the second routed wires, so that the

Assignees

• Sharp Kk

Inventors

• Saitoh Takao
• Miwa Masahiko
• Kanzaki Yohsuke
• Yamanaka Masaki
• Sun Yi

Classifications

• H10K59/873

  Encapsulations · CPC title

• H10K59/131

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

• H10K50/844 Primary

  Encapsulations · CPC title

• H10K59/1201 Primary

  Manufacture or treatment · CPC title

• H10K2102/311

  Flexible OLED · CPC title