Display device and sensor device

1. A display device comprising:

a display area which displays images;

a non-display area surrounding the display area;

a first interlayer insulating film having a first bottom surface and a first top surface;

a second interlayer insulating film disposed on the first top surface of the first interlayer insulating film and having a second bottom surface and a second top surface;

a first signal line and a second signal line covered by the first bottom surface of the first interlayer insulating film;

a first metallic wiring and a second metallic wiring sandwiched between the first top surface of the first interlayer insulating film and the second bottom surface of the second interlayer insulating film;

a pixel electrode sandwiched between the first top surface of the first interlayer insulating film and the second bottom surface of the second interlayer insulating film; and

a first common electrode and a second common electrode disposed on the second top surface of the second interlayer insulating film, wherein

the first metallic wiring overlaps the first signal line and extends in parallel to the first signal line,

the second metallic wiring overlaps the second signal line and extends in parallel to the second signal line,

the pixel electrode is provided between the first metallic wiring and the second metallic wiring and overlaps the second common electrode,

the first common electrode and the second common electrode are separated from each other with a gap therebetween,

the gap overlaps the first signal line and the first metallic wiring, and

the second signal line and the second metallic wiring overlap the second common electrode, the second metallic wiring is connected to the second common electrode through a first contact hole formed in the second interlayer insulating film in the display area, the first contact hole overlaps the second signal line, and the first metallic wiring is connected to the first common electrode through a second contact hole formed in the second interlayer insulating film in the non-display area.

2. The display device of claim 1 , wherein

the display area comprises a first end and a second end, and

the gap overlaps the first metallic wiring and the first signal line, and is formed along the first signal line and the first metallic wiring to extend from the first end to the second end as seen in plan view.

3. The display device of claim 2 , wherein

the first common electrode and the second common electrode extend from the first end of the display area to the second end.

4. The display device of claim 1 , further comprising:

a first substrate including the first common electrode, the second common electrode and the pixel electrode;

a second substrate which opposes the first substrate; and

a first spacer provided between the first substrate and the second substrate,

wherein

the first spacer is disposed in a position where the overlapping with the first signal line is avoided, but which overlaps the second signal line.

5. The display device of claim 4 , wherein

the second metallic wiring includes a first portion and a second portion located apart from the first portion, and the first spacer is disposed between the first portion and the second portion.

6. The display device of claim 5 , further comprising:

a second spacer disposed between the first substrate and the second substrate in a position which overlaps the second signal line,

wherein the first portion of the second metallic wiring is located between the first spacer and the second spacer.

7. The display device of claim 6 , wherein

the first contact hole is located between the first spacer and the second spacer.

8. The display device of claim 2 , wherein

the display area further comprises a third end and a fourth end,

the display device further comprises:

a third metallic wiring provided along the third end; and

a fourth metallic wiring provided along the fourth end, and

the third metallic wiring and the fourth metallic wiring are sandwiched between the first top surface of the first interlayer insulating film and the second bottom surface of the second interlayer insulating film.

9. A sensor device comprising:

a detection region to detect a position of a detection object;

a non-detection region located outside the detection region;

an interlayer insulating film having a bottom surface and a top surface;

a first metallic wiring covered by the bottom surface;

a second metallic wiring covered by the bottom surface and located apart from the first metallic wiring; and

first and second sensor electrodes provided on the top surface of the interlayer insulating film, wherein

the first sensor electrode and the second sensor electrode are separated from each other with a gap therebetween,

the gap overlaps the first metallic wiring,

the second metallic wiring overlaps the second sensor electrode, and

the second metallic wiring is connected to the second sensor electrode through a first contact hole formed in the interlayer insulating film in the detection region, and the first metallic wiring is connected to the first sensor electrode through a second contact hole formed in the interlayer insulating film in the non-detection region.

10. The sensor device of claim 9 , wherein

the detection region comprises a first end and a second end, and

the gap is formed along the first metallic wiring to extend from the first end to the second end as seen in plan view.

11. The sensor device of claim 10 , wherein

the first sensor electrode and the second sensor electrode extend from the first end to the second end.

12. The sensor device of claim 10 , wherein

the detection region further comprises a third end and a fourth end,

the display device further comprises:

a third metallic wiring provided along the third end; and

a fourth metallic wiring provided along the fourth end, and

third and fourth metallic wiring are covered by the bottom surface of the interlaver insulating film.

13. A display device comprising:

a first interlayer insulating film having a first bottom surface and a first top surface;

a second interlayer insulating film disposed on the first top surface of the first interlayer insulating film and having a second bottom surface and a second top surface;

an alignment film disposed on the second top surface of the second interlayer insulating film;

a signal line covered by the first bottom surface of the first interlayer insulating film:

a metallic wiring being in contact with the first top surface of the first interlayer insulating film and the second bottom surface of the second interlayer insulating film; and

first and second transparent electrodes being in contact with the top surface of the second interlayer insulating film and the alignment film, wherein

the first transparent electrode and the second transparent electrode are separated from each other with a gap therebetween,

the gap overlaps the signal line and the metallic wiring, and

the metallic wiring is electrically connected to the first transparent electrode through a contact hole formed in the second interlayer insulating film.

14. The display device of claim 13 , further comprising:

a display area which displays images; and

a non-display area surrounding the display area,

wherein

the display area comprises a first end and a second end,

the gap is formed along the signal line and the metallic wiring to extend from the first end to the second end as seen in plan view, and

the contact hole located in the non-display area.

15. The display devices of claim 14 , wherein

the first transparent electrode and the second transparent electrode extend from the first end to the second end.