Display device and method of manufacturing display device

1. A display device comprising:

lead wiring drawn out from a display region to a peripheral region of the display region;

a first insulating film covering said lead wiring disposed on a substrate;

a plurality of pieces of annular wiring disposed in a state of enclosing the display region in a multiple manner between said display region and said peripheral region on said first insulating film;

a second insulating film covering said annular wiring disposed above said substrate, and having a plurality of groove patterns having each of the pieces of annular wiring as a bottom surface; and

a light emitting element disposed on said second insulating film within said display region.

2. The display device according to claim 1 ,

wherein said light emitting element is formed by sandwiching a light emitting functional layer between an upper electrode and a lower electrode.

3. The display device according to claim 2 ,

wherein a pixel circuit connected to said lead wiring is disposed within said display region, and

said lower electrode is connected to said pixel circuit.

4. The display device according to claim 2 ,

wherein said upper electrode is connected to said annular wiring via said groove pattern.

5. The display device according to claim 1 ,

wherein the pieces of annular wiring disposed in said multiple manner are connected to each other.

6. The display device according to claim 1 , wherein said lead wiring has a bypass parallel with said lead wiring at a part where said lead wiring crosses said annular wiring.

7. The display device according to claim 1 ,

wherein a plurality of said groove patterns are arranged in a state of enclosing said display region in a multiple manner.

8. A method of manufacturing a display device, comprising:

a first step of forming lead wiring drawn out from a display region to a peripheral region of the display region;

a second step of covering a substrate on which said lead wiring is disposed by a first insulating film;

a third step of forming a plurality of pieces of annular wiring in a state of enclosing the display region in a multiple manner between said display region and said peripheral region on said first insulating film;

a fourth step of checking said lead wiring and said annular wiring;

a fifth step of, when a defective part is found in a check in said fourth step, repairing the defective part of said annular wiring;

a sixth step of forming a second insulating film covering said substrate above which said annular wiring is disposed, and having a plurality of groove patterns having each of said pieces of annular wiring as a bottom surface after said fourth step; and

a seventh step of forming a light emitting element on said second insulating film within said display region.